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| 337 579 lineto |
| 213 541 lineto |
| 157 486 lineto |
| 165 460 lineto |
| 203 469 lineto |
| 301 518 lineto |
| 392 518 lineto |
| 383 449 lineto |
| 255 203 lineto |
| 142 14 lineto |
| 164 -14 lineto |
| closepath |
| fill |
| } def |
| |
| /three { |
| 460 0 81 2 475 582 setcachedevice |
| newpath |
| 103 2 moveto |
| 312 70 lineto |
| 401 137 lineto |
| 444 224 lineto |
| 430 321 lineto |
| 411 384 lineto |
| 475 488 lineto |
| 465 544 lineto |
| 379 582 lineto |
| 234 572 lineto |
| 166 532 lineto |
| 158 495 lineto |
| 195 493 lineto |
| 276 526 lineto |
| 396 515 lineto |
| 413 508 lineto |
| 420 501 lineto |
| 420 490 lineto |
| 352 377 lineto |
| 368 312 lineto |
| 387 228 lineto |
| 344 152 lineto |
| 247 97 lineto |
| 91 48 lineto |
| 81 18 lineto |
| closepath |
| fill |
| } def |
| |
| /four { |
| 523 0 113 7 575 587 setcachedevice |
| newpath |
| 363 7 moveto |
| 398 25 lineto |
| 575 564 lineto |
| 550 584 lineto |
| 519 555 lineto |
| 440 312 lineto |
| 430 305 lineto |
| 181 277 lineto |
| 173 282 lineto |
| 179 291 lineto |
| 321 566 lineto |
| 305 587 lineto |
| 268 569 lineto |
| 113 266 lineto |
| 124 231 lineto |
| 234 224 lineto |
| 402 246 lineto |
| 412 246 lineto |
| 416 239 lineto |
| 346 28 lineto |
| 347 17 lineto |
| 354 10 lineto |
| closepath |
| fill |
| } def |
| |
| /five { |
| 544 0 67 -12 602 606 setcachedevice |
| newpath |
| 152 -12 moveto |
| 266 -4 lineto |
| 375 48 lineto |
| 442 136 lineto |
| 452 228 lineto |
| 406 298 lineto |
| 276 356 lineto |
| 216 363 lineto |
| 206 363 lineto |
| 206 372 lineto |
| 263 544 lineto |
| 273 549 lineto |
| 583 555 lineto |
| 602 592 lineto |
| 597 600 lineto |
| 497 606 lineto |
| 209 601 lineto |
| 197 564 lineto |
| 203 527 lineto |
| 140 324 lineto |
| 180 303 lineto |
| 271 296 lineto |
| 373 246 lineto |
| 398 185 lineto |
| 362 107 lineto |
| 288 57 lineto |
| 173 41 lineto |
| 93 71 lineto |
| 67 39 lineto |
| 115 -2 lineto |
| closepath |
| fill |
| } def |
| |
| /six { |
| 406 0 100 39 396 620 setcachedevice |
| newpath |
| 184 39 moveto |
| 256 59 lineto |
| 355 153 lineto |
| 396 252 lineto |
| 382 340 lineto |
| 315 375 lineto |
| 234 363 lineto |
| 224 361 lineto |
| 214 356 lineto |
| 210 361 lineto |
| 214 370 lineto |
| 312 521 lineto |
| 396 593 lineto |
| 391 620 lineto |
| 341 611 lineto |
| 243 517 lineto |
| 142 344 lineto |
| 100 201 lineto |
| 113 93 lineto |
| 165 41 lineto |
| closepath |
| 186 98 moveto |
| 155 167 lineto |
| 173 270 lineto |
| 261 317 lineto |
| 321 310 lineto |
| 340 248 lineto |
| 295 162 lineto |
| 216 97 lineto |
| closepath |
| fill |
| } def |
| |
| /seven { |
| 554 0 176 32 610 620 setcachedevice |
| newpath |
| 235 32 moveto |
| 273 46 lineto |
| 444 310 lineto |
| 454 314 lineto |
| 513 308 lineto |
| 532 335 lineto |
| 498 363 lineto |
| 489 367 lineto |
| 483 370 lineto |
| 489 381 lineto |
| 610 579 lineto |
| 589 620 lineto |
| 413 611 lineto |
| 184 591 lineto |
| 176 583 lineto |
| 178 546 lineto |
| 437 556 lineto |
| 541 569 lineto |
| 546 564 lineto |
| 541 555 lineto |
| 430 384 lineto |
| 421 379 lineto |
| 339 375 lineto |
| 322 340 lineto |
| 366 324 lineto |
| 377 324 lineto |
| 387 324 lineto |
| 384 314 lineto |
| 224 57 lineto |
| closepath |
| fill |
| } def |
| |
| /eight { |
| 541 0 86 2 571 629 setcachedevice |
| newpath |
| 210 2 moveto |
| 335 21 lineto |
| 450 93 lineto |
| 517 181 lineto |
| 524 252 lineto |
| 449 342 lineto |
| 445 347 lineto |
| 453 354 lineto |
| 542 425 lineto |
| 571 493 lineto |
| 537 578 lineto |
| 500 559 lineto |
| 513 474 lineto |
| 458 418 lineto |
| 347 368 lineto |
| 267 368 lineto |
| 241 393 lineto |
| 260 453 lineto |
| 351 537 lineto |
| 453 574 lineto |
| 490 597 lineto |
| 477 629 lineto |
| 374 609 lineto |
| 255 524 lineto |
| 188 423 lineto |
| 190 354 lineto |
| 250 312 lineto |
| 256 305 lineto |
| 247 300 lineto |
| 141 217 lineto |
| 86 135 lineto |
| 92 57 lineto |
| 160 8 lineto |
| closepath |
| 216 59 moveto |
| 145 86 lineto |
| 149 145 lineto |
| 218 221 lineto |
| 350 284 lineto |
| 402 293 lineto |
| 409 289 lineto |
| 470 223 lineto |
| 448 164 lineto |
| 361 90 lineto |
| 226 57 lineto |
| closepath |
| fill |
| } def |
| |
| /nine { |
| 484 0 140 -54 477 634 setcachedevice |
| newpath |
| 387 -54 moveto |
| 418 -27 lineto |
| 460 382 lineto |
| 421 405 lineto |
| 245 344 lineto |
| 195 367 lineto |
| 205 426 lineto |
| 278 513 lineto |
| 385 574 lineto |
| 468 583 lineto |
| 477 592 lineto |
| 475 629 lineto |
| 407 634 lineto |
| 295 587 lineto |
| 191 499 lineto |
| 140 402 lineto |
| 144 333 lineto |
| 194 291 lineto |
| 286 298 lineto |
| 389 338 lineto |
| 400 344 lineto |
| 405 340 lineto |
| 407 330 lineto |
| 363 -18 lineto |
| 377 -52 lineto |
| closepath |
| fill |
| } def |
| |
| /colon { |
| 208 0 66 7 220 379 setcachedevice |
| newpath |
| 79 7 moveto |
| 140 14 lineto |
| 160 63 lineto |
| 170 122 lineto |
| 132 126 lineto |
| 74 70 lineto |
| 66 20 lineto |
| closepath |
| 148 275 moveto |
| 208 301 lineto |
| 220 363 lineto |
| 175 379 lineto |
| 128 333 lineto |
| 130 282 lineto |
| closepath |
| fill |
| } def |
| |
| /semicolon { |
| 254 0 85 -61 227 360 setcachedevice |
| newpath |
| 119 -61 moveto |
| 175 -6 lineto |
| 212 92 lineto |
| 165 135 lineto |
| 116 115 lineto |
| 85 57 lineto |
| 120 30 lineto |
| 131 32 lineto |
| 135 26 lineto |
| 131 16 lineto |
| 93 -37 lineto |
| closepath |
| 150 246 moveto |
| 202 261 lineto |
| 227 307 lineto |
| 214 354 lineto |
| 167 360 lineto |
| 125 324 lineto |
| 120 266 lineto |
| closepath |
| fill |
| } def |
| |
| /less { |
| 474 0 114 -46 530 603 setcachedevice |
| newpath |
| 377 -46 moveto |
| 407 -35 lineto |
| 410 3 lineto |
| 265 209 lineto |
| 203 268 lineto |
| 197 275 lineto |
| 201 284 lineto |
| 528 570 lineto |
| 530 600 lineto |
| 492 603 lineto |
| 174 326 lineto |
| 114 273 lineto |
| 130 244 lineto |
| 244 144 lineto |
| closepath |
| fill |
| } def |
| |
| /equal { |
| 451 0 133 225 467 418 setcachedevice |
| newpath |
| 162 225 moveto |
| 410 252 lineto |
| 416 289 lineto |
| 286 291 lineto |
| 161 273 lineto |
| 147 237 lineto |
| 152 229 lineto |
| closepath |
| 396 351 moveto |
| 456 358 lineto |
| 464 367 lineto |
| 467 388 lineto |
| 462 395 lineto |
| 209 418 lineto |
| 146 405 lineto |
| 133 368 lineto |
| 178 358 lineto |
| closepath |
| fill |
| } def |
| |
| /greater { |
| 508 0 54 -50 508 621 setcachedevice |
| newpath |
| 76 -50 moveto |
| 294 108 lineto |
| 508 300 lineto |
| 501 335 lineto |
| 243 621 lineto |
| 204 614 lineto |
| 201 575 lineto |
| 439 314 lineto |
| 443 305 lineto |
| 435 298 lineto |
| 91 14 lineto |
| 54 -25 lineto |
| closepath |
| fill |
| } def |
| |
| /question { |
| 426 0 156 19 467 587 setcachedevice |
| newpath |
| 225 19 moveto |
| 263 41 lineto |
| 273 46 lineto |
| 301 59 lineto |
| 304 97 lineto |
| 257 127 lineto |
| 196 107 lineto |
| 188 68 lineto |
| 207 26 lineto |
| closepath |
| 272 197 moveto |
| 304 223 lineto |
| 339 324 lineto |
| 456 449 lineto |
| 467 529 lineto |
| 414 582 lineto |
| 271 587 lineto |
| 192 546 lineto |
| 156 481 lineto |
| 179 455 lineto |
| 208 469 lineto |
| 234 515 lineto |
| 306 532 lineto |
| 395 521 lineto |
| 414 490 lineto |
| 356 411 lineto |
| 273 317 lineto |
| 252 215 lineto |
| closepath |
| fill |
| } def |
| |
| /at { |
| 624 0 117 17 603 600 setcachedevice |
| newpath |
| 353 17 moveto |
| 468 46 lineto |
| 551 103 lineto |
| 603 199 lineto |
| 589 231 lineto |
| 553 211 lineto |
| 503 126 lineto |
| 403 78 lineto |
| 302 83 lineto |
| 219 143 lineto |
| 175 246 lineto |
| 189 370 lineto |
| 256 483 lineto |
| 343 533 lineto |
| 445 537 lineto |
| 505 495 lineto |
| 523 400 lineto |
| 487 287 lineto |
| 464 263 lineto |
| 454 259 lineto |
| 450 268 lineto |
| 448 368 lineto |
| 456 375 lineto |
| 474 411 lineto |
| 431 428 lineto |
| 329 402 lineto |
| 241 330 lineto |
| 207 273 lineto |
| 224 222 lineto |
| 279 208 lineto |
| 370 246 lineto |
| 379 254 lineto |
| 389 261 lineto |
| 393 254 lineto |
| 412 210 lineto |
| 470 209 lineto |
| 536 270 lineto |
| 575 368 lineto |
| 571 488 lineto |
| 528 560 lineto |
| 430 600 lineto |
| 317 580 lineto |
| 215 512 lineto |
| 153 419 lineto |
| 117 287 lineto |
| 137 163 lineto |
| 201 72 lineto |
| 304 24 lineto |
| closepath |
| 265 277 moveto |
| 337 347 lineto |
| 389 368 lineto |
| 397 365 lineto |
| 392 356 lineto |
| 326 279 lineto |
| 275 264 lineto |
| 265 268 lineto |
| closepath |
| fill |
| } def |
| |
| /A { |
| 790 0 59 -48 723 625 setcachedevice |
| newpath |
| 693 -48 moveto |
| 713 -46 lineto |
| 722 -39 lineto |
| 723 29 lineto |
| 583 524 lineto |
| 554 625 lineto |
| 515 620 lineto |
| 308 337 lineto |
| 300 330 lineto |
| 195 319 lineto |
| 186 282 lineto |
| 244 273 lineto |
| 254 270 lineto |
| 252 261 lineto |
| 59 -1 lineto |
| 79 -28 lineto |
| 122 4 lineto |
| 320 268 lineto |
| 328 275 lineto |
| 597 272 lineto |
| 601 264 lineto |
| 684 -43 lineto |
| closepath |
| 555 330 moveto |
| 376 333 lineto |
| 373 337 lineto |
| 380 347 lineto |
| 506 523 lineto |
| 514 532 lineto |
| 519 527 lineto |
| 579 342 lineto |
| 582 331 lineto |
| 575 328 lineto |
| closepath |
| fill |
| } def |
| |
| /B { |
| 606 0 76 -28 590 629 setcachedevice |
| newpath |
| 193 -28 moveto |
| 349 -14 lineto |
| 480 41 lineto |
| 566 130 lineto |
| 590 222 lineto |
| 557 300 lineto |
| 474 344 lineto |
| 406 356 lineto |
| 396 356 lineto |
| 396 363 lineto |
| 406 370 lineto |
| 485 451 lineto |
| 502 531 lineto |
| 457 588 lineto |
| 317 626 lineto |
| 204 629 lineto |
| 181 607 lineto |
| 186 451 lineto |
| 154 216 lineto |
| 84 35 lineto |
| 76 0 lineto |
| 105 -19 lineto |
| closepath |
| 194 28 moveto |
| 156 35 lineto |
| 150 41 lineto |
| 219 256 lineto |
| 221 266 lineto |
| 226 275 lineto |
| 308 301 lineto |
| 469 284 lineto |
| 524 238 lineto |
| 529 179 lineto |
| 479 104 lineto |
| 372 46 lineto |
| 215 26 lineto |
| closepath |
| 236 351 moveto |
| 246 564 lineto |
| 250 572 lineto |
| 259 574 lineto |
| 404 547 lineto |
| 446 512 lineto |
| 424 453 lineto |
| 313 372 lineto |
| 242 340 lineto |
| 234 340 lineto |
| closepath |
| fill |
| } def |
| |
| /C { |
| 609 0 107 -23 580 593 setcachedevice |
| newpath |
| 299 -23 moveto |
| 434 8 lineto |
| 552 93 lineto |
| 575 129 lineto |
| 548 150 lineto |
| 409 54 lineto |
| 316 32 lineto |
| 228 68 lineto |
| 171 165 lineto |
| 171 284 lineto |
| 218 393 lineto |
| 310 495 lineto |
| 409 540 lineto |
| 500 535 lineto |
| 552 497 lineto |
| 580 512 lineto |
| 572 559 lineto |
| 517 592 lineto |
| 405 593 lineto |
| 304 551 lineto |
| 195 451 lineto |
| 123 316 lineto |
| 107 172 lineto |
| 155 59 lineto |
| 243 -9 lineto |
| closepath |
| fill |
| } def |
| |
| /D { |
| 736 0 53 -43 741 625 setcachedevice |
| newpath |
| 79 -43 moveto |
| 265 -35 lineto |
| 442 14 lineto |
| 587 98 lineto |
| 689 206 lineto |
| 741 326 lineto |
| 738 425 lineto |
| 671 517 lineto |
| 536 586 lineto |
| 363 625 lineto |
| 206 619 lineto |
| 180 584 lineto |
| 207 564 lineto |
| 249 569 lineto |
| 258 568 lineto |
| 258 558 lineto |
| 205 237 lineto |
| 136 23 lineto |
| 133 13 lineto |
| 123 9 lineto |
| 62 4 lineto |
| 53 -32 lineto |
| closepath |
| 193 23 moveto |
| 275 289 lineto |
| 316 558 lineto |
| 319 568 lineto |
| 328 569 lineto |
| 511 532 lineto |
| 644 460 lineto |
| 689 377 lineto |
| 665 266 lineto |
| 581 158 lineto |
| 448 74 lineto |
| 272 19 lineto |
| 197 9 lineto |
| 189 13 lineto |
| closepath |
| fill |
| } def |
| |
| /E { |
| 653 0 61 -43 699 624 setcachedevice |
| newpath |
| 77 -43 moveto |
| 460 -35 lineto |
| 573 -37 lineto |
| 592 -1 lineto |
| 551 17 lineto |
| 177 14 lineto |
| 135 13 lineto |
| 127 16 lineto |
| 128 25 lineto |
| 206 358 lineto |
| 211 367 lineto |
| 222 367 lineto |
| 510 363 lineto |
| 530 388 lineto |
| 510 416 lineto |
| 219 423 lineto |
| 216 430 lineto |
| 231 564 lineto |
| 236 572 lineto |
| 246 572 lineto |
| 680 569 lineto |
| 699 596 lineto |
| 676 621 lineto |
| 198 624 lineto |
| 175 575 lineto |
| 128 246 lineto |
| 61 -20 lineto |
| closepath |
| fill |
| } def |
| |
| /F { |
| 636 0 49 -64 694 634 setcachedevice |
| newpath |
| 75 -64 moveto |
| 105 -35 lineto |
| 201 358 lineto |
| 208 363 lineto |
| 509 368 lineto |
| 534 400 lineto |
| 504 421 lineto |
| 224 421 lineto |
| 214 423 lineto |
| 216 435 lineto |
| 235 569 lineto |
| 240 578 lineto |
| 251 578 lineto |
| 653 572 lineto |
| 692 583 lineto |
| 694 620 lineto |
| 565 634 lineto |
| 214 625 lineto |
| 180 601 lineto |
| 155 407 lineto |
| 49 -54 lineto |
| 55 -61 lineto |
| closepath |
| fill |
| } def |
| |
| /G { |
| 627 0 113 -111 686 609 setcachedevice |
| newpath |
| 435 -111 moveto |
| 474 -103 lineto |
| 528 123 lineto |
| 545 275 lineto |
| 509 282 lineto |
| 491 233 lineto |
| 459 57 lineto |
| 455 48 lineto |
| 445 46 lineto |
| 291 46 lineto |
| 208 92 lineto |
| 164 186 lineto |
| 179 298 lineto |
| 245 400 lineto |
| 375 490 lineto |
| 530 546 lineto |
| 675 560 lineto |
| 686 597 lineto |
| 609 609 lineto |
| 442 577 lineto |
| 273 490 lineto |
| 167 386 lineto |
| 113 268 lineto |
| 114 137 lineto |
| 171 41 lineto |
| 273 -8 lineto |
| 425 -12 lineto |
| 435 -10 lineto |
| 444 -12 lineto |
| 443 -23 lineto |
| 430 -104 lineto |
| closepath |
| fill |
| } def |
| |
| /H { |
| 631 0 107 -43 694 629 setcachedevice |
| newpath |
| 128 -43 moveto |
| 162 -17 lineto |
| 238 314 lineto |
| 241 324 lineto |
| 252 328 lineto |
| 576 337 lineto |
| 583 333 lineto |
| 581 324 lineto |
| 513 -6 lineto |
| 549 -12 lineto |
| 582 76 lineto |
| 694 616 lineto |
| 687 624 lineto |
| 657 624 lineto |
| 649 615 lineto |
| 598 409 lineto |
| 596 398 lineto |
| 587 395 lineto |
| 264 381 lineto |
| 254 384 lineto |
| 254 393 lineto |
| 273 619 lineto |
| 239 629 lineto |
| 217 584 lineto |
| 196 389 lineto |
| 193 379 lineto |
| 182 379 lineto |
| 133 365 lineto |
| 134 328 lineto |
| 173 324 lineto |
| 183 323 lineto |
| 184 312 lineto |
| 107 -26 lineto |
| closepath |
| fill |
| } def |
| |
| /I { |
| 190 0 83 13 224 588 setcachedevice |
| newpath |
| 108 13 moveto |
| 138 43 lineto |
| 218 469 lineto |
| 224 582 lineto |
| 188 588 lineto |
| 168 541 lineto |
| 119 209 lineto |
| 83 23 lineto |
| 89 16 lineto |
| closepath |
| fill |
| } def |
| |
| /J { |
| 587 0 84 28 650 634 setcachedevice |
| newpath |
| 183 28 moveto |
| 287 46 lineto |
| 353 105 lineto |
| 421 266 lineto |
| 469 524 lineto |
| 474 555 lineto |
| 479 564 lineto |
| 489 566 lineto |
| 634 579 lineto |
| 650 616 lineto |
| 597 634 lineto |
| 241 597 lineto |
| 225 560 lineto |
| 230 552 lineto |
| 405 559 lineto |
| 415 558 lineto |
| 416 547 lineto |
| 364 268 lineto |
| 305 128 lineto |
| 252 87 lineto |
| 172 93 lineto |
| 118 143 lineto |
| 84 123 lineto |
| 99 71 lineto |
| closepath |
| fill |
| } def |
| |
| /K { |
| 554 0 78 -32 583 621 setcachedevice |
| newpath |
| 94 -32 moveto |
| 128 -8 lineto |
| 175 187 lineto |
| 182 194 lineto |
| 242 246 lineto |
| 250 254 lineto |
| 259 252 lineto |
| 448 -26 lineto |
| 478 -25 lineto |
| 494 1 lineto |
| 307 293 lineto |
| 306 301 lineto |
| 548 544 lineto |
| 583 600 lineto |
| 557 621 lineto |
| 224 296 lineto |
| 198 275 lineto |
| 191 266 lineto |
| 190 275 lineto |
| 232 614 lineto |
| 197 620 lineto |
| 174 574 lineto |
| 99 97 lineto |
| 78 -24 lineto |
| closepath |
| fill |
| } def |
| |
| /L { |
| 534 0 93 -25 484 578 setcachedevice |
| newpath |
| 120 -25 moveto |
| 381 7 lineto |
| 475 21 lineto |
| 484 50 lineto |
| 452 67 lineto |
| 160 39 lineto |
| 150 35 lineto |
| 147 43 lineto |
| 213 435 lineto |
| 217 577 lineto |
| 180 578 lineto |
| 163 519 lineto |
| 100 76 lineto |
| 93 -3 lineto |
| closepath |
| fill |
| } def |
| |
| /M { |
| 589 0 78 -43 623 620 setcachedevice |
| newpath |
| 488 -43 moveto |
| 517 -32 lineto |
| 613 421 lineto |
| 623 603 lineto |
| 592 620 lineto |
| 543 574 lineto |
| 364 266 lineto |
| 356 261 lineto |
| 354 270 lineto |
| 280 572 lineto |
| 253 609 lineto |
| 209 580 lineto |
| 93 170 lineto |
| 78 7 lineto |
| 110 -6 lineto |
| 132 28 lineto |
| 176 286 lineto |
| 238 490 lineto |
| 242 499 lineto |
| 245 488 lineto |
| 314 196 lineto |
| 358 182 lineto |
| 411 240 lineto |
| 554 493 lineto |
| 559 503 lineto |
| 565 503 lineto |
| 565 493 lineto |
| 473 -32 lineto |
| closepath |
| fill |
| } def |
| |
| /N { |
| 492 0 81 -23 548 597 setcachedevice |
| newpath |
| 102 -23 moveto |
| 112 -19 lineto |
| 137 13 lineto |
| 206 405 lineto |
| 209 446 lineto |
| 213 456 lineto |
| 216 449 lineto |
| 323 150 lineto |
| 369 -4 lineto |
| 417 4 lineto |
| 475 218 lineto |
| 548 580 lineto |
| 517 596 lineto |
| 490 563 lineto |
| 397 128 lineto |
| 390 123 lineto |
| 389 133 lineto |
| 280 460 lineto |
| 217 597 lineto |
| 177 588 lineto |
| 154 467 lineto |
| 100 97 lineto |
| 81 -4 lineto |
| closepath |
| fill |
| } def |
| |
| /O { |
| 590 0 111 2 592 583 setcachedevice |
| newpath |
| 276 2 moveto |
| 369 9 lineto |
| 465 64 lineto |
| 555 180 lineto |
| 592 312 lineto |
| 588 462 lineto |
| 536 550 lineto |
| 456 583 lineto |
| 365 565 lineto |
| 254 490 lineto |
| 167 386 lineto |
| 111 256 lineto |
| 121 128 lineto |
| 194 30 lineto |
| closepath |
| 283 61 moveto |
| 197 118 lineto |
| 165 218 lineto |
| 187 310 lineto |
| 257 423 lineto |
| 354 504 lineto |
| 437 527 lineto |
| 504 495 lineto |
| 540 395 lineto |
| 522 241 lineto |
| 465 135 lineto |
| 386 71 lineto |
| 292 59 lineto |
| closepath |
| fill |
| } def |
| |
| /P { |
| 683 0 124 -54 715 632 setcachedevice |
| newpath |
| 146 -54 moveto |
| 179 -27 lineto |
| 293 425 lineto |
| 316 570 lineto |
| 318 580 lineto |
| 327 583 lineto |
| 537 559 lineto |
| 654 495 lineto |
| 655 456 lineto |
| 584 402 lineto |
| 275 282 lineto |
| 273 245 lineto |
| 282 241 lineto |
| 511 312 lineto |
| 661 389 lineto |
| 715 460 lineto |
| 705 527 lineto |
| 614 593 lineto |
| 453 632 lineto |
| 226 632 lineto |
| 181 606 lineto |
| 187 572 lineto |
| 249 578 lineto |
| 258 578 lineto |
| 259 569 lineto |
| 190 216 lineto |
| 124 -37 lineto |
| closepath |
| fill |
| } def |
| |
| /Q { |
| 695 0 107 -64 646 566 setcachedevice |
| newpath |
| 251 -64 moveto |
| 376 -52 lineto |
| 491 14 lineto |
| 518 37 lineto |
| 526 39 lineto |
| 611 -2 lineto |
| 640 26 lineto |
| 593 68 lineto |
| 569 85 lineto |
| 563 90 lineto |
| 569 100 lineto |
| 630 239 lineto |
| 646 382 lineto |
| 583 550 lineto |
| 498 566 lineto |
| 362 538 lineto |
| 248 469 lineto |
| 165 377 lineto |
| 107 237 lineto |
| 108 98 lineto |
| 158 -2 lineto |
| closepath |
| 271 -7 moveto |
| 192 57 lineto |
| 159 156 lineto |
| 170 268 lineto |
| 234 384 lineto |
| 319 460 lineto |
| 453 509 lineto |
| 536 483 lineto |
| 585 393 lineto |
| 580 261 lineto |
| 527 130 lineto |
| 520 122 lineto |
| 513 125 lineto |
| 414 196 lineto |
| 384 184 lineto |
| 385 145 lineto |
| 474 75 lineto |
| 478 68 lineto |
| 470 61 lineto |
| 363 -2 lineto |
| closepath |
| fill |
| } def |
| |
| /R { |
| 676 0 140 -59 645 625 setcachedevice |
| newpath |
| 152 -59 moveto |
| 182 -54 lineto |
| 242 149 lineto |
| 299 521 lineto |
| 302 551 lineto |
| 302 561 lineto |
| 310 566 lineto |
| 495 536 lineto |
| 583 467 lineto |
| 583 418 lineto |
| 518 356 lineto |
| 354 291 lineto |
| 273 264 lineto |
| 276 229 lineto |
| 353 162 lineto |
| 521 0 lineto |
| 579 -57 lineto |
| 607 -41 lineto |
| 597 3 lineto |
| 428 179 lineto |
| 368 224 lineto |
| 361 230 lineto |
| 364 238 lineto |
| 374 241 lineto |
| 557 321 lineto |
| 627 393 lineto |
| 645 453 lineto |
| 613 531 lineto |
| 506 592 lineto |
| 300 625 lineto |
| 196 616 lineto |
| 178 591 lineto |
| 200 566 lineto |
| 231 569 lineto |
| 241 569 lineto |
| 246 563 lineto |
| 192 180 lineto |
| 140 -45 lineto |
| closepath |
| fill |
| } def |
| |
| /S { |
| 559 0 101 -7 526 614 setcachedevice |
| newpath |
| 253 -7 moveto |
| 388 -2 lineto |
| 482 59 lineto |
| 526 135 lineto |
| 522 233 lineto |
| 450 319 lineto |
| 216 462 lineto |
| 214 500 lineto |
| 278 542 lineto |
| 393 555 lineto |
| 489 536 lineto |
| 514 569 lineto |
| 479 597 lineto |
| 350 614 lineto |
| 225 577 lineto |
| 162 513 lineto |
| 155 453 lineto |
| 206 388 lineto |
| 421 264 lineto |
| 470 196 lineto |
| 462 116 lineto |
| 395 56 lineto |
| 280 46 lineto |
| 172 86 lineto |
| 138 152 lineto |
| 101 134 lineto |
| 122 50 lineto |
| closepath |
| fill |
| } def |
| |
| /T { |
| 705 0 160 -30 755 578 setcachedevice |
| newpath |
| 398 -30 moveto |
| 432 -4 lineto |
| 497 356 lineto |
| 505 488 lineto |
| 509 500 lineto |
| 518 501 lineto |
| 737 527 lineto |
| 755 554 lineto |
| 732 578 lineto |
| 506 564 lineto |
| 469 560 lineto |
| 314 546 lineto |
| 177 537 lineto |
| 160 501 lineto |
| 203 486 lineto |
| 444 497 lineto |
| 451 492 lineto |
| 401 109 lineto |
| 378 -13 lineto |
| closepath |
| fill |
| } def |
| |
| /U { |
| 501 0 126 2 538 643 setcachedevice |
| newpath |
| 262 2 moveto |
| 342 32 lineto |
| 436 158 lineto |
| 509 340 lineto |
| 538 536 lineto |
| 527 643 lineto |
| 489 637 lineto |
| 481 558 lineto |
| 459 363 lineto |
| 379 162 lineto |
| 300 68 lineto |
| 261 63 lineto |
| 211 128 lineto |
| 183 282 lineto |
| 209 508 lineto |
| 209 555 lineto |
| 170 549 lineto |
| 126 333 lineto |
| 142 146 lineto |
| 195 35 lineto |
| closepath |
| fill |
| } def |
| |
| /V { |
| 573 0 180 -12 639 652 setcachedevice |
| newpath |
| 310 -12 moveto |
| 350 1 lineto |
| 500 305 lineto |
| 639 634 lineto |
| 610 652 lineto |
| 578 611 lineto |
| 342 90 lineto |
| 335 87 lineto |
| 334 97 lineto |
| 263 503 lineto |
| 216 615 lineto |
| 180 600 lineto |
| 188 532 lineto |
| 251 257 lineto |
| 295 -2 lineto |
| closepath |
| fill |
| } def |
| |
| /W { |
| 724 0 170 -48 777 629 setcachedevice |
| newpath |
| 250 -48 moveto |
| 290 -39 lineto |
| 476 240 lineto |
| 482 245 lineto |
| 487 236 lineto |
| 543 8 lineto |
| 581 -12 lineto |
| 618 6 lineto |
| 677 157 lineto |
| 769 528 lineto |
| 777 629 lineto |
| 740 629 lineto |
| 718 560 lineto |
| 639 218 lineto |
| 597 85 lineto |
| 592 75 lineto |
| 585 71 lineto |
| 583 82 lineto |
| 522 316 lineto |
| 484 321 lineto |
| 396 217 lineto |
| 282 37 lineto |
| 275 32 lineto |
| 274 43 lineto |
| 231 426 lineto |
| 222 595 lineto |
| 185 597 lineto |
| 170 550 lineto |
| 206 82 lineto |
| 235 -39 lineto |
| closepath |
| fill |
| } def |
| |
| /X { |
| 658 0 96 -7 651 620 setcachedevice |
| newpath |
| 109 -7 moveto |
| 147 4 lineto |
| 379 254 lineto |
| 388 263 lineto |
| 395 259 lineto |
| 569 -6 lineto |
| 598 3 lineto |
| 603 41 lineto |
| 438 305 lineto |
| 433 314 lineto |
| 440 323 lineto |
| 646 580 lineto |
| 651 619 lineto |
| 615 620 lineto |
| 409 363 lineto |
| 400 360 lineto |
| 395 368 lineto |
| 208 614 lineto |
| 180 601 lineto |
| 178 564 lineto |
| 354 319 lineto |
| 359 310 lineto |
| 354 301 lineto |
| 96 14 lineto |
| closepath |
| fill |
| } def |
| |
| /Y { |
| 669 0 177 -75 730 632 setcachedevice |
| newpath |
| 298 -75 moveto |
| 335 -54 lineto |
| 415 252 lineto |
| 730 609 lineto |
| 717 632 lineto |
| 678 615 lineto |
| 393 303 lineto |
| 385 294 lineto |
| 380 296 lineto |
| 294 500 lineto |
| 213 602 lineto |
| 177 586 lineto |
| 189 541 lineto |
| 282 388 lineto |
| 340 194 lineto |
| 285 -61 lineto |
| closepath |
| fill |
| } def |
| |
| /Z { |
| 618 0 75 -28 631 588 setcachedevice |
| newpath |
| 103 -26 moveto |
| 404 -18 lineto |
| 546 -20 lineto |
| 555 -13 lineto |
| 550 21 lineto |
| 274 39 lineto |
| 192 35 lineto |
| 182 37 lineto |
| 188 45 lineto |
| 416 282 lineto |
| 631 559 lineto |
| 614 587 lineto |
| 201 588 lineto |
| 171 559 lineto |
| 182 535 lineto |
| 534 532 lineto |
| 544 532 lineto |
| 543 523 lineto |
| 268 192 lineto |
| 75 1 lineto |
| 93 -28 lineto |
| closepath |
| fill |
| } def |
| |
| /bracketleft { |
| 330 0 54 -122 370 676 setcachedevice |
| newpath |
| 125 -122 moveto |
| 239 -104 lineto |
| 254 -75 lineto |
| 251 -67 lineto |
| 204 -59 lineto |
| 121 -64 lineto |
| 114 -57 lineto |
| 116 -48 lineto |
| 236 583 lineto |
| 239 603 lineto |
| 243 612 lineto |
| 253 614 lineto |
| 358 633 lineto |
| 370 670 lineto |
| 322 676 lineto |
| 208 661 lineto |
| 182 615 lineto |
| 78 24 lineto |
| 54 -98 lineto |
| 95 -119 lineto |
| closepath |
| fill |
| } def |
| |
| /backslash { |
| 602 0 188 -79 528 657 setcachedevice |
| newpath |
| 509 -79 moveto |
| 519 -76 lineto |
| 527 -70 lineto |
| 528 -20 lineto |
| 266 592 lineto |
| 226 657 lineto |
| 188 643 lineto |
| 194 596 lineto |
| 383 167 lineto |
| 489 -75 lineto |
| closepath |
| fill |
| } def |
| |
| /bracketright { |
| 349 0 62 -127 412 703 setcachedevice |
| newpath |
| 90 -127 moveto |
| 255 -100 lineto |
| 278 -52 lineto |
| 317 254 lineto |
| 412 680 lineto |
| 384 703 lineto |
| 198 693 lineto |
| 191 656 lineto |
| 331 643 lineto |
| 342 644 lineto |
| 347 639 lineto |
| 345 629 lineto |
| 240 141 lineto |
| 221 -43 lineto |
| 219 -52 lineto |
| 209 -57 lineto |
| 64 -82 lineto |
| 62 -119 lineto |
| closepath |
| fill |
| } def |
| |
| /asciicircum { |
| 457 0 131 330 474 547 setcachedevice |
| newpath |
| 159 330 moveto |
| 259 405 lineto |
| 319 474 lineto |
| 326 476 lineto |
| 331 469 lineto |
| 443 356 lineto |
| 474 386 lineto |
| 394 488 lineto |
| 334 547 lineto |
| 282 510 lineto |
| 187 416 lineto |
| 131 360 lineto |
| 149 330 lineto |
| closepath |
| fill |
| } def |
| |
| /underscore { |
| 780 0 60 -59 716 14 setcachedevice |
| newpath |
| 489 -59 moveto |
| 696 -54 lineto |
| 716 -19 lineto |
| 686 -2 lineto |
| 98 14 lineto |
| 60 4 lineto |
| 60 -32 lineto |
| 261 -52 lineto |
| closepath |
| fill |
| } def |
| |
| /quoteleft { |
| 284 0 186 486 325 674 setcachedevice |
| newpath |
| 287 486 moveto |
| 325 504 lineto |
| 313 560 lineto |
| 228 674 lineto |
| 198 671 lineto |
| 186 633 lineto |
| 265 517 lineto |
| closepath |
| fill |
| } def |
| |
| /a { |
| 564 0 71 -59 511 442 setcachedevice |
| newpath |
| 237 -59 moveto |
| 466 -41 lineto |
| 501 -14 lineto |
| 511 208 lineto |
| 481 330 lineto |
| 410 404 lineto |
| 301 442 lineto |
| 207 425 lineto |
| 180 395 lineto |
| 194 372 lineto |
| 307 384 lineto |
| 406 328 lineto |
| 446 244 lineto |
| 447 233 lineto |
| 445 224 lineto |
| 437 228 lineto |
| 310 252 lineto |
| 195 225 lineto |
| 98 150 lineto |
| 71 59 lineto |
| 117 -21 lineto |
| 217 -57 lineto |
| closepath |
| 233 -2 moveto |
| 153 28 lineto |
| 130 90 lineto |
| 163 144 lineto |
| 252 189 lineto |
| 363 189 lineto |
| 440 153 lineto |
| 448 97 lineto |
| 442 27 lineto |
| 439 17 lineto |
| 430 10 lineto |
| 253 -4 lineto |
| closepath |
| fill |
| } def |
| |
| /b { |
| 570 0 82 -25 546 616 setcachedevice |
| newpath |
| 103 -25 moveto |
| 136 0 lineto |
| 145 2 lineto |
| 324 -19 lineto |
| 428 6 lineto |
| 511 79 lineto |
| 546 180 lineto |
| 523 252 lineto |
| 451 296 lineto |
| 299 301 lineto |
| 196 270 lineto |
| 188 270 lineto |
| 188 280 lineto |
| 230 616 lineto |
| 193 616 lineto |
| 165 527 lineto |
| 82 -8 lineto |
| closepath |
| 267 39 moveto |
| 160 59 lineto |
| 152 64 lineto |
| 152 74 lineto |
| 177 199 lineto |
| 186 207 lineto |
| 289 245 lineto |
| 432 239 lineto |
| 484 201 lineto |
| 479 130 lineto |
| 423 61 lineto |
| 329 35 lineto |
| closepath |
| fill |
| } def |
| |
| /c { |
| 530 0 96 -28 500 435 setcachedevice |
| newpath |
| 275 -28 moveto |
| 420 -16 lineto |
| 470 3 lineto |
| 469 39 lineto |
| 284 28 lineto |
| 176 68 lineto |
| 147 126 lineto |
| 172 238 lineto |
| 241 340 lineto |
| 333 379 lineto |
| 431 368 lineto |
| 465 314 lineto |
| 500 333 lineto |
| 500 381 lineto |
| 442 428 lineto |
| 342 435 lineto |
| 239 398 lineto |
| 158 319 lineto |
| 96 180 lineto |
| 96 81 lineto |
| 147 16 lineto |
| 254 -25 lineto |
| closepath |
| fill |
| } def |
| |
| /d { |
| 586 0 87 -28 616 615 setcachedevice |
| newpath |
| 322 -28 moveto |
| 496 -14 lineto |
| 529 14 lineto |
| 524 71 lineto |
| 616 601 lineto |
| 583 615 lineto |
| 558 580 lineto |
| 513 300 lineto |
| 510 289 lineto |
| 503 289 lineto |
| 406 331 lineto |
| 262 328 lineto |
| 160 284 lineto |
| 100 204 lineto |
| 87 114 lineto |
| 128 28 lineto |
| 212 -13 lineto |
| closepath |
| 252 35 moveto |
| 174 72 lineto |
| 144 152 lineto |
| 172 223 lineto |
| 248 268 lineto |
| 372 277 lineto |
| 462 243 lineto |
| 493 224 lineto |
| 498 217 lineto |
| 462 50 lineto |
| 458 39 lineto |
| 448 35 lineto |
| closepath |
| fill |
| } def |
| |
| /e { |
| 470 0 90 -12 424 409 setcachedevice |
| newpath |
| 241 -12 moveto |
| 345 8 lineto |
| 424 72 lineto |
| 419 108 lineto |
| 381 97 lineto |
| 295 46 lineto |
| 214 50 lineto |
| 159 100 lineto |
| 147 158 lineto |
| 153 165 lineto |
| 278 197 lineto |
| 370 259 lineto |
| 391 321 lineto |
| 351 395 lineto |
| 284 409 lineto |
| 195 365 lineto |
| 109 246 lineto |
| 90 134 lineto |
| 128 37 lineto |
| 201 -7 lineto |
| closepath |
| 163 236 moveto |
| 228 328 lineto |
| 288 354 lineto |
| 326 326 lineto |
| 328 287 lineto |
| 207 229 lineto |
| 166 221 lineto |
| 158 225 lineto |
| closepath |
| fill |
| } def |
| |
| /f { |
| 498 0 108 -30 534 587 setcachedevice |
| newpath |
| 194 -30 moveto |
| 228 -7 lineto |
| 247 207 lineto |
| 255 212 lineto |
| 319 219 lineto |
| 326 226 lineto |
| 332 257 lineto |
| 326 264 lineto |
| 265 268 lineto |
| 257 270 lineto |
| 256 280 lineto |
| 291 476 lineto |
| 334 526 lineto |
| 424 522 lineto |
| 474 481 lineto |
| 491 437 lineto |
| 521 444 lineto |
| 534 481 lineto |
| 500 549 lineto |
| 402 587 lineto |
| 308 572 lineto |
| 247 507 lineto |
| 204 342 lineto |
| 197 270 lineto |
| 190 263 lineto |
| 108 244 lineto |
| 108 207 lineto |
| 178 207 lineto |
| 189 208 lineto |
| 192 200 lineto |
| 178 -21 lineto |
| closepath |
| fill |
| } def |
| |
| /g { |
| 528 0 22 -319 499 356 setcachedevice |
| newpath |
| 234 -319 moveto |
| 317 -307 lineto |
| 384 -247 lineto |
| 448 -98 lineto |
| 499 180 lineto |
| 496 317 lineto |
| 410 356 lineto |
| 295 337 lineto |
| 179 268 lineto |
| 103 172 lineto |
| 74 70 lineto |
| 95 7 lineto |
| 158 -12 lineto |
| 272 17 lineto |
| 374 89 lineto |
| 432 158 lineto |
| 437 164 lineto |
| 438 153 lineto |
| 388 -112 lineto |
| 326 -241 lineto |
| 266 -264 lineto |
| 42 -201 lineto |
| 22 -236 lineto |
| 114 -282 lineto |
| closepath |
| 136 56 moveto |
| 145 136 lineto |
| 201 217 lineto |
| 295 280 lineto |
| 398 296 lineto |
| 425 289 lineto |
| 433 284 lineto |
| 432 273 lineto |
| 354 141 lineto |
| 254 67 lineto |
| 160 43 lineto |
| closepath |
| fill |
| } def |
| |
| /h { |
| 505 0 91 -41 485 615 setcachedevice |
| newpath |
| 404 -41 moveto |
| 439 -14 lineto |
| 485 201 lineto |
| 468 317 lineto |
| 414 367 lineto |
| 341 351 lineto |
| 213 237 lineto |
| 192 209 lineto |
| 184 204 lineto |
| 182 215 lineto |
| 232 606 lineto |
| 197 615 lineto |
| 175 579 lineto |
| 103 93 lineto |
| 91 1 lineto |
| 114 -12 lineto |
| 125 -8 lineto |
| 159 43 lineto |
| 247 199 lineto |
| 345 293 lineto |
| 395 308 lineto |
| 425 241 lineto |
| 410 87 lineto |
| 384 -24 lineto |
| closepath |
| fill |
| } def |
| |
| /i { |
| 295 0 134 -18 315 523 setcachedevice |
| newpath |
| 157 -18 moveto |
| 188 8 lineto |
| 230 215 lineto |
| 226 363 lineto |
| 188 360 lineto |
| 173 291 lineto |
| 157 97 lineto |
| 134 -4 lineto |
| closepath |
| 284 389 moveto |
| 315 400 lineto |
| 315 437 lineto |
| 191 523 lineto |
| 159 497 lineto |
| 191 453 lineto |
| closepath |
| fill |
| } def |
| |
| /j { |
| 406 0 38 -188 428 527 setcachedevice |
| newpath |
| 128 -188 moveto |
| 189 -172 lineto |
| 260 -86 lineto |
| 319 86 lineto |
| 341 351 lineto |
| 304 356 lineto |
| 295 349 lineto |
| 254 43 lineto |
| 194 -97 lineto |
| 151 -134 lineto |
| 94 -101 lineto |
| 61 -86 lineto |
| 38 -108 lineto |
| 61 -156 lineto |
| closepath |
| 394 391 moveto |
| 428 414 lineto |
| 413 446 lineto |
| 296 527 lineto |
| 262 504 lineto |
| 277 472 lineto |
| closepath |
| fill |
| } def |
| |
| /k { |
| 434 0 81 -39 384 609 setcachedevice |
| newpath |
| 106 -39 moveto |
| 135 -8 lineto |
| 166 115 lineto |
| 217 160 lineto |
| 227 165 lineto |
| 234 159 lineto |
| 314 34 lineto |
| 339 -4 lineto |
| 376 12 lineto |
| 357 85 lineto |
| 279 202 lineto |
| 273 209 lineto |
| 279 217 lineto |
| 384 321 lineto |
| 376 347 lineto |
| 337 340 lineto |
| 194 208 lineto |
| 187 200 lineto |
| 179 202 lineto |
| 179 211 lineto |
| 224 601 lineto |
| 217 609 lineto |
| 180 600 lineto |
| 145 393 lineto |
| 89 32 lineto |
| 81 -26 lineto |
| closepath |
| fill |
| } def |
| |
| /l { |
| 190 0 79 -2 226 592 setcachedevice |
| newpath |
| 105 -2 moveto |
| 134 25 lineto |
| 226 577 lineto |
| 205 592 lineto |
| 173 569 lineto |
| 79 28 lineto |
| 96 -2 lineto |
| closepath |
| fill |
| } def |
| |
| /m { |
| 661 0 112 -41 613 382 setcachedevice |
| newpath |
| 557 -39 moveto |
| 566 -41 lineto |
| 576 -37 lineto |
| 600 -1 lineto |
| 613 210 lineto |
| 570 317 lineto |
| 526 333 lineto |
| 472 293 lineto |
| 423 218 lineto |
| 417 209 lineto |
| 412 209 lineto |
| 412 218 lineto |
| 375 338 lineto |
| 327 367 lineto |
| 270 340 lineto |
| 193 241 lineto |
| 189 240 lineto |
| 187 250 lineto |
| 176 379 lineto |
| 139 382 lineto |
| 127 335 lineto |
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| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 b FC(38)189 |
| 2373 y(2.13)22 b(Colors)15 b(and)g(Coloring)41 b Fy(:)22 |
| b(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)45 b FC(39)293 2431 y(2.13.1)28 b(Ligh)o(ting)23 |
| b Fy(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:) |
| h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 b FC(40)293 2488 |
| y(2.13.2)28 b(Ligh)o(ting)16 b(P)o(arameter)e(Sp)q(eci\014cation)31 |
| b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 |
| b FC(46)861 2613 y(i)p eop |
| %%Page: 2 4 |
| 2 3 bop 332 137 a FC(ii)1212 b Fx(CONTENTS)505 286 y |
| FC(2.13.3)27 b Fz(ColorMaterial)45 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(47)505 345 y(2.13.4)27 b(Ligh)o(ting)16 b(State)45 |
| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)h(:)f(:)g(:)46 b FC(50)505 403 y(2.13.5)27 |
| b(Color)15 b(Index)h(Ligh)o(ting)21 b Fy(:)h(:)h(:)f(:)g(:)h(:)f(:)g(:) |
| h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(50)505 |
| 461 y(2.13.6)27 b(Clamping)16 b(or)f(Masking)41 b Fy(:)23 |
| b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(51)505 519 y(2.13.7)27 b(Flatshading)e Fy(:)d(:)h(:)f(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:) |
| 46 b FC(51)505 578 y(2.13.8)27 b(Color)15 b(and)h(T)l(exture)f(Co)q |
| (ordinate)g(Clipping)40 b Fy(:)22 b(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(52)505 636 y(2.13.9)27 b(Final)16 b(Color)f(Pro)q(cessing)20 |
| b Fy(:)j(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:) |
| g(:)46 b FC(53)332 741 y Fz(3)c(Rasterization)1072 b(54)400 |
| 799 y FC(3.1)46 b(In)o(v)m(ariance)25 b Fy(:)e(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:) |
| f(:)h(:)f(:)g(:)46 b FC(55)400 857 y(3.2)g(An)o(tialiasing)27 |
| b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(55)400 |
| 916 y(3.3)g(P)o(oin)o(ts)32 b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:) |
| f(:)h(:)f(:)g(:)46 b FC(57)505 974 y(3.3.1)k(P)o(oin)o(t)15 |
| b(Rasterization)h(State)37 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(60)400 1032 y(3.4)g(Line)16 |
| b(Segmen)o(ts)46 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:) |
| h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(60)505 1090 y(3.4.1)k(Basic)16 b(Line)h(Segmen)o(t)e |
| (Rasterization)f Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(60)505 1149 y(3.4.2)k(Other)16 b(Line)g(Segmen)o(t)f(F)l(eatures) |
| 29 b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(63)505 1207 y(3.4.3)k(Line)17 b(Rasterization)f(State)22 |
| b Fy(:)g(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:) |
| 46 b FC(66)400 1265 y(3.5)g(P)o(olygons)14 b Fy(:)22 |
| b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(66)505 |
| 1323 y(3.5.1)k(Basic)16 b(P)o(olygon)f(Rasterization)j |
| Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(66)505 1381 y(3.5.2)k(Stippling)d Fy(:)22 b(:)g(:)h(:)f(:)h(:)f(:) |
| g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g |
| (:)46 b FC(68)505 1440 y(3.5.3)k(An)o(tialiasing)23 b |
| Fy(:)f(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(69)505 1498 y(3.5.4)k(Options)16 |
| b(Con)o(trolling)g(P)o(olygon)f(Rasterization)46 b Fy(:)23 |
| b(:)f(:)h(:)f(:)g(:)46 b FC(69)505 1556 y(3.5.5)k(Depth)16 |
| b(O\013set)37 b Fy(:)23 b(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(70)505 |
| 1614 y(3.5.6)k(P)o(olygon)15 b(Rasterization)h(State)j |
| Fy(:)k(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(71)400 1673 y(3.6)g(Pixel)16 b(Rectangles)42 b Fy(:)22 |
| b(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(71)505 1731 y(3.6.1)k(Pixel)17 |
| b(Storage)d(Mo)q(des)27 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(72)505 1789 |
| y(3.6.2)k(Pixel)17 b(T)l(ransfer)e(Mo)q(des)46 b Fy(:)23 |
| b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(73)505 1847 y(3.6.3)k(Rasterization)16 b(of)f(Pixel)h(Rectangles) |
| 25 b Fy(:)e(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(75)505 1906 y(3.6.4)k(Pixel)17 b(T)l(ransfer)e(Op)q(erations)28 |
| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:) |
| 46 b FC(81)400 1964 y(3.7)g(Bitmaps)26 b Fy(:)c(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:) |
| h(:)f(:)h(:)f(:)g(:)46 b FC(83)400 2022 y(3.8)g(T)l(exturing)33 |
| b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(85)505 2080 y(3.8.1)k(T)l(exture)16 b(Mini\014cation)29 |
| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h |
| (:)f(:)g(:)46 b FC(94)505 2139 y(3.8.2)k(T)l(exture)16 |
| b(Magni\014cation)30 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:) |
| f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(98)505 2197 y(3.8.3)k(T)l(exture)16 |
| b(State)e(and)i(Pro)o(xy)e(State)34 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)h(:)f(:)g(:)46 b FC(98)505 2255 y(3.8.4)k(T)l(exture)16 |
| b(Ob)s(jects)42 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(99)505 2313 |
| y(3.8.5)k(T)l(exture)16 b(En)o(vironmen)o(ts)f(and)g(T)l(exture)g(F)l |
| (unctions)22 b Fy(:)g(:)h(:)f(:)g(:)h FC(101)505 2372 |
| y(3.8.6)50 b(T)l(exture)16 b(Application)37 b Fy(:)22 |
| b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g |
| (:)h FC(102)400 2430 y(3.9)46 b(F)l(og)14 b Fy(:)22 b(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:) |
| f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h FC(105)400 |
| 2488 y(3.10)g(An)o(tialiasing)17 b(Application)28 b Fy(:)23 |
| b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h |
| (:)f(:)g(:)h FC(106)p eop |
| %%Page: 3 5 |
| 3 4 bop 120 137 a Fx(CONTENTS)1199 b FC(iii)120 286 y |
| Fz(4)43 b(F)l(ragmen)o(ts)16 b(and)i(the)f(F)l(ramebu\013er)622 |
| b(108)189 347 y FC(4.1)45 b(P)o(er-F)l(ragmen)o(t)14 |
| b(Op)q(erations)41 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(109)293 408 y(4.1.1)51 |
| b(Pixel)16 b(Ownership)h(T)l(est)43 b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(109)293 |
| 469 y(4.1.2)51 b(Scissor)15 b(test)35 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:) |
| g FC(110)293 530 y(4.1.3)51 b(Alpha)16 b(test)e Fy(:)22 |
| b(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(110)293 591 y(4.1.4)51 |
| b(Stencil)17 b(test)35 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(111)293 652 y(4.1.5)51 b(Depth)15 b(bu\013er)g(test)22 |
| b Fy(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:) |
| g(:)h(:)f(:)h(:)g FC(112)293 712 y(4.1.6)51 b(Blending)14 |
| b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(112)293 773 |
| y(4.1.7)51 b(Dithering)35 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(114)293 834 y(4.1.8)51 b(Logical)16 b(Op)q(eration)43 |
| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)h(:)g FC(115)189 895 y(4.2)45 b(Whole)16 b(F)l(ramebu\013er) |
| e(Op)q(erations)37 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)h(:)g FC(116)293 956 y(4.2.1)51 b(Selecting)16 |
| b(a)f(Bu\013er)g(for)g(W)l(riting)25 b Fy(:)d(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(116)293 1017 y(4.2.2)51 |
| b(Fine)15 b(Con)o(trol)g(of)g(Bu\013er)g(Up)q(dates)26 |
| b Fy(:)d(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(118)293 1078 y(4.2.3)51 b(Clearing)16 b(the)f(Bu\013ers)35 |
| b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)h(:)g FC(119)293 1138 y(4.2.4)51 b(The)15 b(Accum)o(ulation)h |
| (Bu\013er)36 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:) |
| h(:)f(:)h(:)g FC(120)189 1199 y(4.3)45 b(Dra)o(wing,)14 |
| b(Reading,)i(and)g(Cop)o(ying)f(Pixels)23 b Fy(:)g(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(121)293 1260 y(4.3.1)51 |
| b(W)l(riting)15 b(to)g(the)g(Stencil)i(Bu\013er)41 b |
| Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(121)293 1321 y(4.3.2)51 b(Reading)16 b(Pixels)35 b |
| Fy(:)22 b(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)h(:)g FC(121)293 1382 y(4.3.3)51 b(Cop)o(ying)15 |
| b(Pixels)33 b Fy(:)22 b(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(126)293 1443 |
| y(4.3.4)51 b(Pixel)16 b(dra)o(w/read)e(state)38 b Fy(:)22 |
| b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(127)120 1552 y Fz(5)43 b(Sp)q(ecial)19 b(F)l(unctions)949 |
| b(128)189 1613 y FC(5.1)45 b(Ev)m(aluators)16 b Fy(:)22 |
| b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(128)189 |
| 1674 y(5.2)45 b(Selection)17 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:) |
| g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)h(:)g FC(134)189 1734 y(5.3)45 b(F)l(eedbac)o(k)h |
| Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(136)189 1795 y(5.4)45 b(Displa)o(y)16 b(Lists)40 b |
| Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(140)189 |
| 1856 y(5.5)45 b Fz(Flush)15 b FC(and)h Fz(Finish)34 b |
| Fy(:)23 b(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(143)189 1917 y(5.6)45 |
| b(Hin)o(ts)16 b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:) |
| f(:)h(:)g FC(143)120 2026 y Fz(6)43 b(State)18 b(and)g(State)g |
| (Requests)768 b(144)120 2136 y(A)29 b(In)o(v)m(ariance)1112 |
| b(171)189 2196 y FC(A.1)34 b(Rep)q(eatabilit)o(y)f Fy(:)23 |
| b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(171)189 2257 |
| y(A.2)34 b(Multi-pass)16 b(Algorithms)30 b Fy(:)22 b(:)h(:)f(:)h(:)f(:) |
| g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(172)189 2318 y(A.3)34 b(In)o(v)m(ariance)17 b(Rules)42 |
| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(172)189 2379 |
| y(A.4)34 b(What)15 b(All)h(This)g(Means)41 b Fy(:)22 |
| b(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)h(:)g FC(174)120 2488 y Fz(B)32 b(Corollaries)1101 |
| b(175)p eop |
| %%Page: 4 6 |
| 4 5 bop 332 137 a FC(iv)1200 b Fx(CONTENTS)332 286 y |
| Fz(C)30 b(V)l(ersion)17 b(1.1)1092 b(178)400 343 y FC(C.1)36 |
| b(V)l(ertex)15 b(Arra)o(y)37 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:) |
| g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g |
| (:)h FC(178)400 399 y(C.2)36 b(P)o(olygon)15 b(O\013set)40 |
| b Fy(:)23 b(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h FC(179)400 456 |
| y(C.3)36 b(Logical)16 b(Op)q(eration)47 b Fy(:)22 b(:)h(:)f(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:) |
| h FC(179)400 512 y(C.4)36 b(T)l(exture)15 b(Image)g(F)l(ormats)42 |
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| b(Replace)i(En)o(vironmen)o(t)j Fy(:)j(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h FC(179)400 625 y(C.6)36 |
| b(T)l(exture)15 b(Pro)o(xies)k Fy(:)k(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h |
| FC(180)400 682 y(C.7)36 b(Cop)o(y)15 b(T)l(exture)g(and)g(Subtexture)22 |
| b Fy(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:) |
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| b Fy(:)22 b(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h FC(180)400 795 y(C.9)36 |
| b(Other)15 b(Changes)35 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h |
| FC(180)400 851 y(C.10)13 b(Ac)o(kno)o(wledgemen)o(ts)29 |
| b Fy(:)22 b(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h FC(181)p eop |
| %%Page: 5 7 |
| 5 6 bop 120 619 a FA(List)39 b(of)g(Figures)189 841 y |
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| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
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| b(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 b FC(13)189 1010 y(2.3)g(Primitiv)o |
| (e)16 b(assem)o(bly)g(and)f(pro)q(cessing.)26 b Fy(:)c(:)g(:)h(:)f(:)g |
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| 1067 y(2.4)g(T)l(riangle)16 b(strips,)f(fans,)g(and)g(indep)q(enden)o |
| (t)j(triangles.)h Fy(:)j(:)h(:)f(:)g(:)h(:)f(:)h(:)45 |
| b FC(16)189 1123 y(2.5)g(Quadrilateral)17 b(strips)e(and)g(indep)q |
| (enden)o(t)j(quadrilaterals.)41 b Fy(:)22 b(:)h(:)f(:)h(:)45 |
| b FC(17)189 1180 y(2.6)g(V)l(ertex)15 b(transformation)f(sequence.)47 |
| b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:) |
| 45 b FC(27)189 1236 y(2.7)g(Curren)o(t)15 b(raster)f(p)q(osition.)40 |
| b Fy(:)23 b(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)45 b FC(39)189 1293 y(2.8)g(Pro)q(cessing)16 |
| b(of)f(colors.)36 b Fy(:)22 b(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 b FC(39)189 |
| 1349 y(2.9)g(ColorMaterial)15 b(op)q(eration.)i Fy(:)23 |
| b(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)h(:)45 b FC(47)189 1447 y(3.1)g(Rasterization.)22 |
| b Fy(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:) |
| g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 b FC(54)189 |
| 1504 y(3.2)g(Rasterization)16 b(of)f(non-an)o(tialiased)h(wide)g(p)q |
| (oin)o(ts.)e Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 |
| b FC(57)189 1560 y(3.3)g(Rasterization)16 b(of)f(an)o(tialiased)h(wide) |
| g(p)q(oin)o(ts.)32 b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h |
| (:)45 b FC(58)189 1616 y(3.4)g(Visualization)17 b(of)e(Bresenham's)g |
| (algorithm.)33 b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 |
| b FC(61)189 1673 y(3.5)g(Rasterization)16 b(of)f(non-an)o(tialiased)h |
| (wide)g(lines.)48 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 |
| b FC(64)189 1729 y(3.6)g(The)16 b(region)f(used)h(in)g(rasterizing)g |
| (an)f(an)o(tialiased)h(line)h(segmen)o(t.)23 b Fy(:)g(:)45 |
| b FC(65)189 1786 y(3.7)g(Op)q(eration)16 b(of)f Fz(Dra)o(wPixels)p |
| FC(.)39 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)45 b FC(75)189 1842 y(3.8)g(Selecting)17 |
| b(a)e(subimage)h(from)e(an)h(image)42 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 b FC(78)189 1899 y(3.9)g(A)15 |
| b(bitmap)h(and)f(its)h(asso)q(ciated)f(parameters.)21 |
| b Fy(:)h(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)45 |
| b FC(84)189 1955 y(3.10)22 b(A)15 b(texture)g(image)h(and)f(the)g(co)q |
| (ordinates)h(used)g(to)e(access)i(it.)27 b Fy(:)c(:)f(:)h(:)45 |
| b FC(89)189 2053 y(4.1)g(P)o(er-fragmen)o(t)14 b(op)q(erations.)i |
| Fy(:)23 b(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)g FC(109)189 2110 y(4.2)45 b(Op)q(eration)16 |
| b(of)f Fz(ReadPixels)p FC(.)46 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(121)189 |
| 2166 y(4.3)45 b(Op)q(eration)16 b(of)f Fz(Cop)o(yPixels)p |
| FC(.)43 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)g FC(126)189 2264 y(5.1)45 b(Map)15 |
| b(Ev)m(aluation.)38 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(130)189 2320 y(5.2)45 b(F)l(eedbac)o(k)16 b(syn)o(tax.)27 |
| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(139)856 2613 |
| y(v)p eop |
| %%Page: 6 8 |
| 6 7 bop 332 622 a FA(List)39 b(of)f(T)-10 b(ables)400 |
| 849 y FC(2.1)46 b(GL)15 b(command)g(su\016xes)46 b Fy(:)22 |
| b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)h(:)f(:)g(:)69 b FC(8)400 910 y(2.2)46 b(GL)15 b(data)g(t)o(yp)q(es) |
| 45 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(10)400 |
| 971 y(2.3)g(Summary)15 b(of)g(GL)g(errors)23 b Fy(:)f(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(12)400 1032 y(2.4)g(V)l(ertex)15 b(arra)o(y)f(sizes)i(\(v)m(alues) |
| g(p)q(er)g(v)o(ertex\))e(and)i(data)e(t)o(yp)q(es)23 |
| b Fy(:)f(:)h(:)f(:)g(:)46 b FC(22)400 1093 y(2.5)g(V)l(ariables)20 |
| b(that)f(direct)h(the)g(execution)g(of)f Fz(In)o(terlea)o(v)o(edArra)o |
| (ys)p FC(.)505 1149 y Fy(f)25 b FC(is)20 b Fw(sizeof\(FLOAT\))p |
| FC(.)e Fy(c)h FC(is)i(4)e(times)h Fw(sizeof\(UNSIGNED)p |
| 1566 1149 15 2 v 16 w(BYTE\))p FC(,)505 1205 y(rounded)f(up)g(to)f(the) |
| h(nearest)f(m)o(ultiple)i(of)e Fy(f)5 b FC(.)30 b(All)20 |
| b(p)q(oin)o(ter)f(arith-)505 1262 y(metic)d(is)f(p)q(erformed)h(in)g |
| (units)g(of)e Fw(sizeof\(UNSIGNED)p 1473 1262 V 16 w(BYTE\))p |
| FC(.)33 b Fy(:)22 b(:)g(:)46 b FC(25)400 1323 y(2.6)g(Comp)q(onen)o(t) |
| 15 b(con)o(v)o(ersions)41 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 b FC(42)400 |
| 1384 y(2.7)g(Summary)15 b(of)g(ligh)o(ting)h(parameters.)30 |
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| (parameter)e(sym)o(b)q(ols)i(to)f(names.)h Fy(:)22 b(:)g(:)46 |
| b FC(48)400 1505 y(2.9)g(P)o(olygon)15 b(\015atshading)g(color)h |
| (selection.)22 b Fy(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f |
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| FC(parameters)g(p)q(ertaining)h(to)f Fz(Dra)o(wPixels)p |
| FC(.)40 b Fy(:)22 b(:)h(:)f(:)g(:)46 b FC(72)400 1669 |
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| FC(formats.)30 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)46 |
| b FC(77)400 1912 y(3.6)g(Sw)o(ap)15 b(Bytes)g(Bit)h(ordering.)44 |
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| 2029 y(B,)f(and)g(A)g(v)m(alues.)40 b Fy(:)22 b(:)g(:)h(:)f(:)h(:)f(:)g |
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| (:)h FC(113)1061 2613 y(vi)p eop |
| %%Page: 7 9 |
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| 512 y(4.5)45 b Fz(PixelStore)16 b FC(parameters)e(p)q(ertaining)i(to)f |
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| (:)f(:)h(:)g FC(125)189 625 y(4.7)45 b Fz(ReadPixels)17 |
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| b(V)l(alues)16 b(sp)q(eci\014ed)i(b)o(y)d(the)g Fv(tar)n(get)g |
| FC(to)g Fz(Map1)p FC(.)34 b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)h(:)g FC(129)189 836 y(5.2)45 b(Corresp)q(ondence)12 |
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| y FC(,)15 b Fy(G)870 941 y Fu(t)884 934 y FC(,)g Fy(B)946 |
| 941 y Fu(t)962 934 y FC(,)g Fy(A)1024 941 y Fu(t)1039 |
| 934 y FC(,)g Fy(L)1098 941 y Fu(t)1113 934 y FC(,)g(and)h |
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| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(150)189 1103 y(6.3)45 b(State)15 b(v)m(ariable)h(t)o(yp)q(es)46 |
| b Fy(:)22 b(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g |
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| (\(inaccessible\))21 b Fy(:)h(:)g(:)h(:)f(:)h(:)g FC(152)189 |
| 1216 y(6.5)45 b(Curren)o(t)15 b(V)l(alues)h(and)f(Asso)q(ciated)h(Data) |
| 28 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(153)189 1273 y(6.6)45 b(V)l(ertex)15 b(Arra)o(y)g(Data)29 |
| b Fy(:)23 b(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(154)189 1329 y(6.7)45 |
| b(T)l(ransformation)14 b(state)22 b Fy(:)g(:)g(:)h(:)f(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(155)189 1386 y(6.8)45 b(Coloring)23 b Fy(:)g(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:) |
| f(:)g(:)h(:)f(:)h(:)g FC(156)189 1442 y(6.9)45 b(Ligh)o(ting)16 |
| b(\(see)f(also)h(T)l(able)g(2.5)e(for)g(defaults\))25 |
| b Fy(:)d(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(157)189 1499 y(6.10)f(Rasterization)35 b Fy(:)23 b(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:) |
| g(:)h(:)f(:)h(:)g FC(158)189 1555 y(6.11)f(T)l(exture)15 |
| b(Ob)s(jects)47 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g |
| (:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(159)189 1611 y(6.12)f(T)l(exture)15 b(En)o(vironmen)o(t)h(and)f |
| (Generation)43 b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h |
| (:)g FC(160)189 1668 y(6.13)f(Pixel)17 b(Op)q(erations)35 |
| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(161)189 1724 |
| y(6.14)f(F)l(ramebu\013er)15 b(Con)o(trol)34 b Fy(:)22 |
| b(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)g FC(162)189 1781 y(6.15)f(Pixels)40 |
| b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h |
| (:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(163)189 1837 y(6.16)f(Pixels)17 b(\(con)o(t.\))30 |
| b Fy(:)23 b(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(164)189 |
| 1894 y(6.17)f(Ev)m(aluators)15 b(\()p Fz(GetMap)g FC(tak)o(es)g(a)g |
| (map)g(name\))35 b Fy(:)22 b(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(165)189 1950 y(6.18)f(Hin)o(ts)16 b Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:) |
| f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g FC(166)189 2007 y(6.19)f(Implemen)o |
| (tation)16 b(Dep)q(enden)o(t)h(V)l(alues)37 b Fy(:)22 |
| b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(167)189 2063 y(6.20)f(More)15 b(Implemen)o(tation)h(Dep)q(enden)o(t) |
| g(V)l(alues)26 b Fy(:)c(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(168)189 2120 y(6.21)f(Implemen)o(tation)16 b(Dep)q(enden)o(t)h |
| (Pixel)f(Depths)f Fy(:)22 b(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)h(:)g |
| FC(169)189 2176 y(6.22)f(Miscellaneous)28 b Fy(:)23 b(:)f(:)g(:)h(:)f |
| (:)g(:)h(:)f(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:)g(:)h(:)f(:) |
| g(:)h(:)f(:)h(:)g FC(170)p eop |
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| 1 9 bop 120 601 a Ft(Chapter)32 b(1)120 812 y FA(In)m(tro)s(duction)120 |
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| (graphics)g(system:)24 b(what)18 b(it)g(is,)g(ho)o(w)f(it)120 |
| 1095 y(acts,)e(and)g(what)g(is)h(required)h(to)d(implemen)o(t)j(it.)k |
| (W)l(e)15 b(assume)g(that)g(the)h(reader)f(has)120 1151 |
| y(at)20 b(least)h(a)f(rudimen)o(tary)g(understanding)i(of)e(computer)g |
| (graphics.)36 b(This)21 b(means)120 1208 y(familiarit)o(y)g(with)f(the) |
| g(essen)o(tials)g(of)g(computer)f(graphics)h(algorithms)g(as)f(w)o(ell) |
| i(as)120 1264 y(familiarit)o(y)16 b(with)g(basic)g(graphics)g(hardw)o |
| (are)e(and)h(asso)q(ciated)h(terms.)120 1427 y Fs(1.1)67 |
| b(What)23 b(is)f(the)h(Op)r(enGL)f(Graphics)i(System?)120 |
| 1536 y FC(Op)q(enGL)18 b(\(for)e(\\Op)q(en)h(Graphics)g(Library"\))f |
| (is)h(a)f(soft)o(w)o(are)f(in)o(terface)h(to)g(graphics)120 |
| 1592 y(hardw)o(are.)j(The)c(in)o(terface)f(consists)h(of)f(a)g(set)g |
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| (ecify)i(the)e(ob)s(jects)g(and)h(op)q(erations)120 1705 |
| y(in)o(v)o(olv)o(ed)12 b(in)f(pro)q(ducing)g(high-qualit)o(y)h |
| (graphical)f(images,)g(sp)q(eci\014cally)i(color)e(images)120 |
| 1761 y(of)k(three-dimensional)j(ob)s(jects.)191 1821 |
| y(Most)e(of)h(Op)q(enGL)h(requires)g(that)e(the)h(graphics)h(hardw)o |
| (are)e(con)o(tain)h(a)g(frame-)120 1878 y(bu\013er.)j(Man)o(y)12 |
| b(Op)q(enGL)j(calls)f(p)q(ertain)g(to)f(dra)o(wing)g(ob)s(jects)f(suc)o |
| (h)i(as)f(p)q(oin)o(ts,)h(lines,)120 1934 y(p)q(olygons,)h(and)g |
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| y Fs(1.2)67 b(Programmer's)21 b(View)h(of)g(Op)r(enGL)120 |
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| eop |
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| 2 10 bop 332 137 a FC(2)785 b Fx(CHAPTER)16 b(1.)34 b(INTR)o(ODUCTION) |
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| y(ing)f(that)e(sp)q(ecifying)j(an)f(ob)s(ject)e(causes)i(it)f(to)g(b)q |
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| 513 y(to)i(allo)q(cate)g(a)g(GL)g(con)o(text)g(and)g(asso)q(ciate)g(it) |
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| 570 y(text)f(is)g(allo)q(cated,)i(the)e(programmer)f(is)h(free)g(to)g |
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| 909 y(writing)h(pixels.)332 1058 y Fs(1.3)66 b(Implemen)n(tor's)23 |
| b(View)f(of)g(Op)r(enGL)332 1161 y FC(T)l(o)17 b(the)h(implemen)o(tor,) |
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| (op)q(era-)332 1218 y(tion)g(of)g(graphics)g(hardw)o(are.)24 |
| b(If)17 b(the)g(hardw)o(are)f(consists)h(only)g(of)g(an)g(addressable) |
| 332 1274 y(framebu\013er,)12 b(then)g(Op)q(enGL)i(m)o(ust)d(b)q(e)i |
| (implemen)o(ted)h(almost)e(en)o(tirely)h(on)f(the)g(host)332 |
| 1331 y(CPU.)j(More)h(t)o(ypically)l(,)h(the)f(graphics)g(hardw)o(are)f |
| (ma)o(y)g(comprise)i(v)m(arying)f(degrees)332 1387 y(of)f(graphics)h |
| (acceleration,)g(from)f(a)g(raster)f(subsystem)i(capable)g(of)f |
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| d(task)f(is)i(to)e(pro)o(vide)h(the)g(CPU)g(soft)o(w)o(are)e(in)o |
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| (Op)q(enGL)g(command)f(b)q(et)o(w)o(een)g(the)g(CPU)g(and)g(the)g |
| (graphics)332 1670 y(hardw)o(are.)g(This)13 b(division)j(m)o(ust)c(b)q |
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| (dra)o(wn)f(in)o(to)h(the)f(framebu\013er.)36 b(Some)21 |
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| d(the)h(user:)20 b(he)15 b(or)f(she)h(can)g(mak)o(e)f(calls)i(to)e |
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| 2122 y(e\013ects)e(are.)332 2272 y Fs(1.4)66 b(Our)23 |
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| eop |
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| 3 11 bop 120 137 a Fx(1.4.)34 b(OUR)16 b(VIEW)1120 b |
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| eop |
| %%Page: 4 13 |
| 4 12 bop 332 603 a Ft(Chapter)31 b(2)332 816 y FA(Op)s(enGL)39 |
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| 2313 y(primitiv)o(e)g(the)e(group)g(of)g(v)o(ertices)g(represen)o(ts.) |
| 403 2375 y(Commands)d(are)h(alw)o(a)o(ys)g(pro)q(cessed)g(in)h(the)g |
| (order)f(in)h(whic)o(h)g(they)f(are)g(receiv)o(ed,)332 |
| 2432 y(although)k(there)g(ma)o(y)f(b)q(e)h(an)g(indeterminate)h(dela)o |
| (y)f(b)q(efore)g(the)g(e\013ects)f(of)g(a)h(com-)332 |
| 2488 y(mand)j(are)f(realized.)34 b(This)19 b(means,)h(for)f(example,)i |
| (that)e(one)g(primitiv)o(e)i(m)o(ust)e(b)q(e)1068 2613 |
| y(4)p eop |
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| 5 13 bop 120 137 a Fx(2.1.)34 b(OPENGL)16 b(FUND)o(AMENT)l(ALS)766 |
| b FC(5)120 286 y(dra)o(wn)16 b(completely)i(b)q(efore)e(an)o(y)g |
| (subsequen)o(t)g(one)h(can)f(a\013ect)f(the)i(framebu\013er.)22 |
| b(It)120 343 y(also)e(means)g(that)f(queries)h(and)g(pixel)i(read)d(op) |
| q(erations)h(return)g(state)f(consisten)o(t)120 399 y(with)g(complete)g |
| (execution)g(of)f(all)h(previously)g(in)o(v)o(ok)o(ed)g(GL)f(commands.) |
| 29 b(In)18 b(gen-)120 456 y(eral,)g(the)g(e\013ects)f(of)f(a)h(GL)h |
| (command)f(on)g(either)h(GL)g(mo)q(des)f(or)g(the)g(framebu\013er)120 |
| 512 y(m)o(ust)11 b(b)q(e)g(complete)h(b)q(efore)g(an)o(y)e(subsequen)o |
| (t)i(command)f(can)g(ha)o(v)o(e)f(an)o(y)h(suc)o(h)g(e\013ects.)191 |
| 569 y(In)19 b(the)g(GL,)g(data)f(binding)j(o)q(ccurs)e(on)f(call.)32 |
| b(This)20 b(means)e(that)g(data)g(passed)120 625 y(to)d(a)g(command)h |
| (are)f(in)o(terpreted)h(when)g(that)e(command)i(is)g(receiv)o(ed.)21 |
| b(Ev)o(en)16 b(if)g(the)120 682 y(command)j(requires)g(a)f(p)q(oin)o |
| (ter)h(to)f(data,)g(those)g(data)g(are)g(in)o(terpreted)h(when)g(the) |
| 120 738 y(call)e(is)f(made,)f(and)h(an)o(y)f(subsequen)o(t)h(c)o |
| (hanges)g(to)f(the)g(data)g(ha)o(v)o(e)g(no)h(e\013ect)f(on)h(the)120 |
| 795 y(GL)g(\(unless)g(the)f(same)g(p)q(oin)o(ter)g(is)h(used)g(in)g(a)f |
| (subsequen)o(t)h(command\).)191 851 y(The)h(GL)h(pro)o(vides)g(direct)g |
| (con)o(trol)f(o)o(v)o(er)f(the)h(fundamen)o(tal)h(op)q(erations)f(of)g |
| (3D)120 907 y(and)i(2D)e(graphics.)30 b(This)19 b(includes)h(sp)q |
| (eci\014cation)h(of)c(suc)o(h)i(parameters)e(as)h(trans-)120 |
| 964 y(formation)13 b(matrices,)g(ligh)o(ting)h(equation)g(co)q |
| (e\016cien)o(ts,)g(an)o(tialiasing)g(metho)q(ds,)g(and)120 |
| 1020 y(pixel)j(up)q(date)f(op)q(erators.)j(It)c(do)q(es)g(not)g(pro)o |
| (vide)h(a)e(means)i(for)e(describing)j(or)e(mo)q(d-)120 |
| 1077 y(eling)j(complex)g(geometric)e(ob)s(jects.)24 b(Another)16 |
| b(w)o(a)o(y)g(to)g(describ)q(e)i(this)f(situation)g(is)120 |
| 1133 y(to)c(sa)o(y)f(that)h(the)g(GL)g(pro)o(vides)g(mec)o(hanisms)h |
| (to)e(describ)q(e)j(ho)o(w)e(complex)h(geometric)120 |
| 1190 y(ob)s(jects)g(are)g(to)g(b)q(e)h(rendered)g(rather)f(than)h(mec)o |
| (hanisms)g(to)e(describ)q(e)j(the)f(complex)120 1246 |
| y(ob)s(jects)g(themselv)o(es.)191 1303 y(The)d(mo)q(del)h(for)f(in)o |
| (terpretation)g(of)f(GL)h(commands)g(is)h(clien)o(t-serv)o(er.)20 |
| b(That)11 b(is,)i(a)120 1359 y(program)g(\(the)h(clien)o(t\))g(issues)h |
| (commands,)e(and)h(these)g(commands)g(are)f(in)o(terpreted)120 |
| 1416 y(and)k(pro)q(cessed)f(b)o(y)g(the)g(GL)g(\(the)g(serv)o(er\).)22 |
| b(The)16 b(serv)o(er)f(ma)o(y)h(or)f(ma)o(y)g(not)h(op)q(erate)120 |
| 1472 y(on)21 b(the)g(same)g(computer)g(as)g(the)g(clien)o(t.)39 |
| b(In)21 b(this)h(sense,)g(the)f(GL)g(is)h(\\net)o(w)o(ork-)120 |
| 1528 y(transparen)o(t.")17 b(A)11 b(serv)o(er)g(ma)o(y)f(main)o(tain)h |
| (a)f(n)o(um)o(b)q(er)h(of)g(GL)f Fv(c)n(ontexts)p FC(,)h(eac)o(h)g(of)f |
| (whic)o(h)120 1585 y(is)17 b(an)e(encapsulation)j(of)d(curren)o(t)h(GL) |
| f(state.)21 b(A)16 b(clien)o(t)h(ma)o(y)e(c)o(ho)q(ose)h(to)f |
| Fv(c)n(onne)n(ct)f FC(to)120 1641 y(an)o(y)i(one)g(of)g(these)g(con)o |
| (texts.)22 b(Issuing)17 b(GL)f(commands)g(when)h(the)f(program)f(is)h |
| (not)120 1698 y Fv(c)n(onne)n(cte)n(d)e FC(to)g(a)h Fv(c)n(ontext)g |
| FC(results)h(in)g(unde\014ned)h(b)q(eha)o(vior.)191 1754 |
| y(The)12 b(e\013ects)f(of)g(GL)g(commands)g(on)h(the)f(framebu\013er)g |
| (are)g(ultimately)i(con)o(trolled)120 1811 y(b)o(y)g(the)g(windo)o(w)f |
| (system)h(that)f(allo)q(cates)h(framebu\013er)f(resources.)19 |
| b(It)13 b(is)g(the)g(windo)o(w)120 1867 y(system)e(that)g(determines)i |
| (whic)o(h)f(p)q(ortions)f(of)g(the)h(framebu\013er)f(the)g(GL)h(ma)o(y) |
| f(access)120 1924 y(at)20 b(an)o(y)g(giv)o(en)g(time)h(and)f(that)g |
| (comm)o(unicates)g(to)g(the)g(GL)g(ho)o(w)g(those)g(p)q(ortions)120 |
| 1980 y(are)j(structured.)41 b(Therefore,)24 b(there)f(are)f(no)g(GL)h |
| (commands)f(to)g(con\014gure)h(the)120 2037 y(framebu\013er)18 |
| b(or)f(initialize)22 b(the)c(GL.)f(Similarly)l(,)k(displa)o(y)e(of)f |
| (framebu\013er)f(con)o(ten)o(ts)120 2093 y(on)g(a)g(CR)l(T)g(monitor)g |
| (\(including)i(the)e(transformation)f(of)g(individual)k(framebu\013er) |
| 120 2149 y(v)m(alues)15 b(b)o(y)d(suc)o(h)i(tec)o(hniques)g(as)f(gamma) |
| f(correction\))g(is)i(not)f(addressed)g(b)o(y)g(the)g(GL.)120 |
| 2206 y(F)l(ramebu\013er)h(con\014guration)h(o)q(ccurs)g(outside)g(of)e |
| (the)i(GL)f(in)i(conjunction)f(with)g(the)120 2262 y(windo)o(w)h |
| (system;)f(the)h(initialization)i(of)d(a)g(GL)h(con)o(text)f(o)q(ccurs) |
| h(when)g(the)g(windo)o(w)120 2319 y(system)f(allo)q(cates)h(a)f(windo)o |
| (w)g(for)g(GL)g(rendering.)191 2375 y(The)d(GL)g(is)h(designed)g(to)f |
| (b)q(e)g(run)g(on)g(a)g(range)g(of)f(graphics)i(platforms)e(with)i(v)m |
| (ary-)120 2432 y(ing)h(graphics)f(capabilities)j(and)d(p)q(erformance.) |
| 19 b(T)l(o)13 b(accommo)q(date)f(this)i(v)m(ariet)o(y)l(,)f(w)o(e)120 |
| 2488 y(sp)q(ecify)k(ideal)f(b)q(eha)o(vior)g(instead)g(of)f(actual)g(b) |
| q(eha)o(vior)h(for)e(certain)i(GL)f(op)q(erations.)p |
| eop |
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| 6 14 bop 332 137 a FC(6)666 b Fx(CHAPTER)16 b(2.)34 b(OPENGL)16 |
| b(OPERA)l(TION)332 286 y FC(In)g(cases)f(where)g(deviation)h(from)f |
| (the)g(ideal)h(is)g(allo)o(w)o(ed,)f(w)o(e)g(also)g(sp)q(ecify)h(the)g |
| (rules)332 343 y(that)d(an)g(implemen)o(tation)i(m)o(ust)e(ob)q(ey)g |
| (if)h(it)g(is)g(to)f(appro)o(ximate)g(the)g(ideal)i(b)q(eha)o(vior)332 |
| 399 y(usefully)l(.)35 b(This)20 b(allo)o(w)o(ed)g(v)m(ariation)g(in)g |
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| 456 y(GL)d(implemen)o(tations)h(ma)o(y)e(not)h(agree)f(pixel)j(for)d |
| (pixel)i(when)g(presen)o(ted)f(with)g(the)332 512 y(same)g(input)h(ev)o |
| (en)g(when)f(run)h(on)f(iden)o(tical)i(framebu\013er)e |
| (con\014gurations.)403 569 y(Finally)l(,)20 b(command)e(names,)h |
| (constan)o(ts,)f(and)h(t)o(yp)q(es)f(are)g(pre\014xed)i(in)f(the)f(GL) |
| 332 625 y(\(b)o(y)h Fz(gl)p FC(,)i Fr(GL)p 538 625 14 |
| 2 v 15 w FC(,)f(and)g Fw(GL)p FC(,)e(resp)q(ectiv)o(ely)j(in)g |
| Fw(C)p FC(\))d(to)h(reduce)h(name)g(clashes)g(with)g(other)332 |
| 682 y(pac)o(k)m(ages.)g(The)15 b(pre\014xes)h(are)f(omitted)g(in)h |
| (this)g(do)q(cumen)o(t)f(for)g(clarit)o(y)l(.)332 802 |
| y Fz(Floating-P)o(oin)o(t)20 b(Computation)332 888 y |
| FC(The)j(GL)f(m)o(ust)g(p)q(erform)g(a)g(n)o(um)o(b)q(er)g(of)g |
| (\015oating-p)q(oin)o(t)h(op)q(erations)f(during)h(the)332 |
| 944 y(course)17 b(of)g(its)g(op)q(eration.)26 b(W)l(e)17 |
| b(do)g(not)g(sp)q(ecify)h(ho)o(w)f(\015oating-p)q(oin)o(t)g(n)o(um)o(b) |
| q(ers)h(are)332 1001 y(to)10 b(b)q(e)h(represen)o(ted)g(or)e(ho)o(w)h |
| (op)q(erations)h(on)f(them)g(are)g(to)g(b)q(e)h(p)q(erformed.)18 |
| b(W)l(e)11 b(require)332 1057 y(simply)i(that)f(n)o(um)o(b)q(ers')g |
| (\015oating-p)q(oin)o(t)h(parts)e(con)o(tain)h(enough)h(bits)f(and)h |
| (that)e(their)332 1114 y(exp)q(onen)o(t)16 b(\014elds)i(are)d(large)h |
| (enough)g(so)g(that)f(individual)k(results)d(of)g(\015oating-p)q(oin)o |
| (t)332 1170 y(op)q(erations)d(are)f(accurate)h(to)f(ab)q(out)h(1)f |
| (part)g(in)i(10)1213 1154 y Fq(5)1232 1170 y FC(.)19 |
| b(The)13 b(maxim)o(um)g(represen)o(table)332 1227 y(magnitude)g(of)f(a) |
| g(\015oating-p)q(oin)o(t)h(n)o(um)o(b)q(er)g(used)g(to)f(represen)o(t)h |
| (p)q(ositional)h(or)d(normal)332 1283 y(co)q(ordinates)j(m)o(ust)f(b)q |
| (e)h(at)e(least)i(2)924 1267 y Fq(32)961 1283 y FC(;)f(the)h(maxim)o |
| (um)f(represen)o(table)h(magnitude)g(for)332 1340 y(colors)20 |
| b(or)f(texture)g(co)q(ordinates)i(m)o(ust)e(b)q(e)h(at)f(least)h(2)1312 |
| 1323 y Fq(10)1349 1340 y FC(.)33 b(The)20 b(maxim)o(um)g(repre-)332 |
| 1396 y(sen)o(table)d(magnitude)g(for)f(all)i(other)e(\015oating-p)q |
| (oin)o(t)h(v)m(alues)h(m)o(ust)e(b)q(e)h(at)f(least)h(2)1777 |
| 1380 y Fq(32)1814 1396 y FC(.)332 1453 y Fy(x)c FB(\001)f |
| FC(0)19 b(=)h(0)12 b FB(\001)h Fy(x)19 b FC(=)g(0)g(for)g(an)o(y)g |
| (non-in\014nite)i(and)e(non-NaN)h Fy(x)p FC(.)32 b(1)12 |
| b FB(\001)g Fy(x)20 b FC(=)f Fy(x)13 b FB(\001)f FC(1)19 |
| b(=)h Fy(x)p FC(.)332 1509 y Fy(x)7 b FC(+)g(0)14 b(=)e(0)7 |
| b(+)g Fy(x)14 b FC(=)f Fy(x)p FC(.)19 b(0)732 1493 y |
| Fq(0)764 1509 y FC(=)13 b(1.)19 b(\(Occasionally)d(further)e |
| (requiremen)o(ts)g(will)h(b)q(e)g(sp)q(eci-)332 1565 |
| y(\014ed.\))20 b(Most)14 b(single-precision)k(\015oating-p)q(oin)o(t)d |
| (formats)f(meet)g(these)h(requiremen)o(ts.)403 1622 y(An)o(y)c |
| (represen)o(table)h(\015oating-p)q(oin)o(t)g(v)m(alue)g(is)g(legal)g |
| (as)f(input)h(to)e(a)h(GL)h(command)332 1678 y(that)h(requires)h |
| (\015oating-p)q(oin)o(t)h(data.)j(The)c(result)g(of)f(pro)o(viding)i(a) |
| e(v)m(alue)i(that)e(is)h(not)332 1735 y(a)20 b(\015oating-p)q(oin)o(t)g |
| (n)o(um)o(b)q(er)g(to)f(suc)o(h)h(a)g(command)f(is)i(unsp)q(eci\014ed,) |
| i(but)d(m)o(ust)f(not)332 1791 y(lead)f(to)f(GL)h(in)o(terruption)h(or) |
| e(termination.)27 b(In)19 b(IEEE)e(arithmetic,)i(for)e(example,)332 |
| 1848 y(pro)o(viding)12 b(a)f(negativ)o(e)g(zero)g(or)f(a)h |
| (denormalized)i(n)o(um)o(b)q(er)e(to)f(a)h(GL)g(command)g(yields)332 |
| 1904 y(predictable)19 b(results,)e(while)h(pro)o(viding)g(a)e(NaN)h(or) |
| f(an)g(in\014nit)o(y)i(yields)h(unsp)q(eci\014ed)332 |
| 1961 y(results.)403 2017 y(Some)d(calculations)i(require)f(division.)26 |
| b(In)17 b(suc)o(h)f(cases)h(\(including)i(implied)f(di-)332 |
| 2074 y(visions)h(required)g(b)o(y)f(v)o(ector)f(normalizations\),)i(a)e |
| (division)j(b)o(y)e(zero)g(pro)q(duces)h(an)332 2130 |
| y(unsp)q(eci\014ed)f(result)e(but)f(m)o(ust)g(not)f(lead)i(to)f(GL)g |
| (in)o(terruption)h(or)f(termination.)332 2274 y Fs(2.2)66 |
| b(GL)23 b(State)332 2375 y FC(The)13 b(GL)f(main)o(tains)g |
| (considerable)i(state.)k(This)13 b(do)q(cumen)o(t)g(en)o(umerates)f |
| (eac)o(h)g(state)332 2432 y(v)m(ariable)23 b(and)f(describ)q(es)i(ho)o |
| (w)d(eac)o(h)h(v)m(ariable)i(can)e(b)q(e)g(c)o(hanged.)41 |
| b(F)l(or)21 b(purp)q(oses)332 2488 y(of)c(discussion,)h(state)e(v)m |
| (ariables)j(are)d(categorized)h(somewhat)g(arbitrarily)g(b)o(y)g(their) |
| p eop |
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| 7 15 bop 120 137 a Fx(2.3.)34 b(GL)16 b(COMMAND)e(SYNT)l(AX)827 |
| b FC(7)120 286 y(function.)21 b(Although)14 b(w)o(e)f(describ)q(e)i |
| (the)f(op)q(erations)g(that)f(the)g(GL)h(p)q(erforms)f(on)h(the)120 |
| 343 y(framebu\013er,)h(the)g(framebu\013er)g(is)g(not)g(a)g(part)g(of)f |
| (GL)i(state.)191 399 y(W)l(e)k(distinguish)i(t)o(w)o(o)d(t)o(yp)q(es)h |
| (of)g(state.)34 b(The)20 b(\014rst)g(t)o(yp)q(e)g(of)g(state,)g(called) |
| i(GL)120 456 y Fv(server)d(state)p FC(,)e(resides)i(in)f(the)g(GL)g |
| (serv)o(er.)27 b(The)17 b(ma)s(jorit)o(y)g(of)g(GL)h(state)e(falls)j |
| (in)o(to)120 512 y(this)14 b(category)l(.)k(The)13 b(second)h(t)o(yp)q |
| (e)f(of)g(state,)f(called)j(GL)e Fv(client)g(state)p |
| FC(,)g(resides)h(in)g(the)120 569 y(GL)i(clien)o(t.)21 |
| b(Unless)16 b(otherwise)f(sp)q(eci\014ed,)i(all)f(state)e(referred)h |
| (to)g(in)h(this)f(do)q(cumen)o(t)120 625 y(is)f(GL)g(serv)o(er)f |
| (state;)g(GL)h(clien)o(t)h(state)d(is)j(sp)q(eci\014cally)h(iden)o |
| (ti\014ed.)21 b(Eac)o(h)14 b(instance)g(of)120 682 y(a)i(GL)h(con)o |
| (text)e(implies)k(one)d(complete)h(set)f(of)g(GL)h(serv)o(er)f(state;)f |
| (eac)o(h)i(connection)120 738 y(from)d(a)f(clien)o(t)j(to)d(a)h(serv)o |
| (er)g(implies)i(a)d(set)h(of)g(b)q(oth)g(GL)g(clien)o(t)i(state)d(and)h |
| (GL)g(serv)o(er)120 795 y(state.)191 851 y(While)19 b(an)f(implemen)o |
| (tation)i(of)e(the)g(GL)g(ma)o(y)f(b)q(e)i(hardw)o(are)e(dep)q(enden)o |
| (t,)j(this)120 907 y(discussion)e(is)f(indep)q(enden)o(t)i(of)c(the)i |
| (sp)q(eci\014c)h(hardw)o(are)d(on)h(whic)o(h)h(a)f(GL)g(is)h(imple-)120 |
| 964 y(men)o(ted.)33 b(W)l(e)20 b(are)f(therefore)g(concerned)i(with)e |
| (the)h(state)e(of)i(graphics)f(hardw)o(are)120 1020 y(only)d(when)g(it) |
| f(corresp)q(onds)h(precisely)h(to)d(GL)i(state.)120 1161 |
| y Fs(2.3)67 b(GL)22 b(Command)g(Syn)n(tax)120 1263 y |
| FC(GL)e(commands)e(are)h(functions)h(or)f(pro)q(cedures.)32 |
| b(V)l(arious)20 b(groups)e(of)h(commands)120 1319 y(p)q(erform)i(the)g |
| (same)f(op)q(eration)h(but)g(di\013er)g(in)h(ho)o(w)e(argumen)o(ts)g |
| (are)g(supplied)j(to)120 1375 y(them.)d(T)l(o)13 b(con)o(v)o(enien)o |
| (tly)h(accommo)q(date)f(this)h(v)m(ariation,)g(w)o(e)f(adopt)g(a)g |
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| (argumen)o(ts.)191 1488 y(GL)f(commands)f(are)h(formed)f(from)g(a)g |
| Fv(name)h FC(follo)o(w)o(ed,)g(dep)q(ending)h(on)f(the)g(par-)120 |
| 1545 y(ticular)k(command,)f(b)o(y)g(up)g(to)g(4)f(c)o(haracters.)27 |
| b(The)19 b(\014rst)e(c)o(haracter)g(indicates)j(the)120 |
| 1601 y(n)o(um)o(b)q(er)c(of)g(v)m(alues)g(of)g(the)f(indicated)j(t)o |
| (yp)q(e)e(that)f(m)o(ust)g(b)q(e)h(presen)o(ted)g(to)f(the)h(com-)120 |
| 1658 y(mand.)k(The)c(second)f(c)o(haracter)g(or)f(c)o(haracter)h(pair)g |
| (indicates)i(the)e(sp)q(eci\014c)i(t)o(yp)q(e)e(of)120 |
| 1714 y(the)i(argumen)o(ts:)23 b(8-bit)17 b(in)o(teger,)g(16-bit)g(in)o |
| (teger,)g(32-bit)g(in)o(teger,)g(single-precision)120 |
| 1771 y(\015oating-p)q(oin)o(t,)26 b(or)c(double-precision)k |
| (\015oating-p)q(oin)o(t.)44 b(The)24 b(\014nal)f(c)o(haracter,)h(if)120 |
| 1827 y(presen)o(t,)19 b(is)g Fw(v)p FC(,)f(indicating)i(that)e(the)g |
| (command)g(tak)o(es)g(a)g(p)q(oin)o(ter)h(to)e(an)h(arra)o(y)f(\(a)120 |
| 1884 y(v)o(ector\))e(of)g(v)m(alues)h(rather)f(than)g(a)g(series)h(of)f |
| (individual)j(argumen)o(ts.)h(Tw)o(o)c(sp)q(eci\014c)120 |
| 1940 y(examples)h(come)g(from)e(the)h Fz(V)l(ertex)f |
| FC(command:)234 2021 y Fw(void)30 b Fz(V)l(ertex3f)p |
| FC(\()e Fw(float)15 b Fv(x)p Fw(,)g(float)f Fv(y)p Fw(,)i(float)e |
| Fv(z)h FC(\))g Fw(;)120 2102 y FC(and)234 2182 y Fw(void)30 |
| b Fz(V)l(ertex2sv)p FC(\()e Fw(short)14 b Fv(v[2])h FC(\))g |
| Fw(;)120 2263 y FC(These)23 b(examples)h(sho)o(w)e(the)g(ANSI)i |
| Fw(C)e FC(declarations)h(for)f(these)h(commands.)42 b(In)120 |
| 2320 y(general,)31 b(a)15 b(command)g(declaration)h(has)f(the)g(form) |
| 1037 2303 y FG(\003)p 120 2354 598 2 v 172 2381 a Fp(\003)189 |
| 2397 y Fo(The)h(declarations)j(sho)o(wn)d(in)h(this)g(do)q(cumen)o(t)f |
| (apply)i(to)e(ANSI)f Fn(C)p Fo(.)g(Languages)i(suc)o(h)g(as)f |
| Fn(C++)120 2443 y Fo(and)d(Ada)f(that)h(allo)o(w)g(passing)h(of)e |
| (argumen)o(t)h(t)o(yp)q(e)f(information)i(admit)f(simpler)h |
| (declarations)h(and)120 2488 y(few)o(er)e(en)o(try)g(p)q(oin)o(ts.)p |
| eop |
| %%Page: 8 17 |
| 8 16 bop 332 137 a FC(8)666 b Fx(CHAPTER)16 b(2.)34 b(OPENGL)16 |
| b(OPERA)l(TION)p 734 242 692 2 v 733 299 2 57 v 758 282 |
| a FC(Letter)p 904 299 V 50 w(Corresp)q(onding)g Fw(GL)f |
| FC(T)o(yp)q(e)p 1424 299 V 734 301 692 2 v 734 309 V |
| 733 365 2 57 v 805 348 a Fz(b)p 904 365 V 96 w Fw(byte)p |
| 1424 365 V 734 367 692 2 v 733 423 2 57 v 809 406 a Fz(s)p |
| 904 423 V 100 w Fw(short)p 1424 423 V 734 425 692 2 v |
| 733 482 2 57 v 812 465 a Fz(i)p 904 482 V 104 w Fw(int)p |
| 1424 482 V 734 483 692 2 v 733 540 2 57 v 811 523 a Fz(f)p |
| 904 540 V 103 w Fw(float)p 1424 540 V 734 541 692 2 v |
| 733 598 2 57 v 805 581 a Fz(d)p 904 598 V 96 w Fw(double)p |
| 1424 598 V 734 599 692 2 v 733 656 2 57 v 790 639 a Fz(ub)p |
| 904 656 V 82 w Fw(ubyte)p 1424 656 V 734 658 692 2 v |
| 733 714 2 57 v 795 697 a Fz(us)p 904 714 V 85 w Fw(ushort)p |
| 1424 714 V 734 716 692 2 v 733 772 2 57 v 798 755 a Fz(ui)p |
| 904 772 V 89 w Fw(uint)p 1424 772 V 734 774 692 2 v 332 |
| 851 a FC(T)l(able)e(2.1:)18 b(Corresp)q(ondence)13 b(of)f(command)h |
| (su\016x)f(letters)h(to)f(GL)g(argumen)o(t)g(t)o(yp)q(es.)332 |
| 907 y(Refer)k(to)e(T)l(able)i(2.2)f(for)f(de\014nitions)j(of)e(the)g |
| (GL)g(t)o(yp)q(es.)446 1089 y Fv(rtyp)n(e)g Fz(Name)p |
| FB(f)p Fy(\017)p Fz(1234)p FB(gf)p Fy(\017)j Fz(b)f(s)g(i)h(f)g(d)f(ub) |
| h(us)f(ui)p FB(gf)p Fy(\017)p Fz(v)p FB(g)806 1146 y |
| Fw(\()e Fv([ar)n(gs)h(,])g(T)f(ar)n(g1)i(,)f Fy(:)8 b(:)g(:)14 |
| b Fv(,)j(T)e(ar)n(g)p Fy(N)21 b Fv([,)16 b(ar)n(gs])31 |
| b Fw(\);)332 1233 y Fv(rtyp)n(e)20 b FC(is)f(the)h(return)f(t)o(yp)q(e) |
| h(of)f(the)g(function.)33 b(The)20 b(braces)f(\()p FB(fg)p |
| FC(\))f(enclose)j(a)e(series)332 1289 y(of)g(c)o(haracters)f(\(or)h(c)o |
| (haracter)f(pairs\))h(of)g(whic)o(h)h(one)f(is)h(selected.)33 |
| b Fy(\017)20 b FC(indicates)h(no)332 1346 y(c)o(haracter.)28 |
| b(The)19 b(argumen)o(ts)e(enclosed)i(in)h(brac)o(k)o(ets)d(\()p |
| Fv([ar)n(gs)h(,])h FC(and)f Fv([,)i(ar)n(gs])p FC(\))d(ma)o(y)332 |
| 1402 y(or)e(ma)o(y)g(not)h(b)q(e)g(presen)o(t.)22 b(The)16 |
| b Fy(N)k FC(argumen)o(ts)15 b Fv(ar)n(g1)h FC(through)g |
| Fv(ar)n(g)p Fy(N)k FC(ha)o(v)o(e)15 b(t)o(yp)q(e)h Fv(T)p |
| FC(,)332 1458 y(whic)o(h)i(corresp)q(onds)g(to)e(one)h(of)g(the)g(t)o |
| (yp)q(e)g(letters)h(or)e(letter)i(pairs)f(as)g(indicated)i(in)332 |
| 1515 y(T)l(able)e(2.1)f(\(if)h(there)f(are)g(no)h(letters,)f(then)h |
| (the)g(argumen)o(ts')e(t)o(yp)q(e)h(is)h(giv)o(en)g(explic-)332 |
| 1571 y(itly\).)j(If)c(the)f(\014nal)h(c)o(haracter)e(is)i(not)e |
| Fz(v)p FC(,)h(then)g Fy(N)k FC(is)d(giv)o(en)g(b)o(y)f(the)g(digit)h |
| Fz(1)p FC(,)e Fz(2)p FC(,)h Fz(3)p FC(,)g(or)332 1628 |
| y Fz(4)i FC(\(if)g(there)g(is)g(no)g(digit,)h(then)f(the)g(n)o(um)o(b)q |
| (er)g(of)g(argumen)o(ts)f(is)h(\014xed\).)26 b(If)17 |
| b(the)g(\014nal)332 1684 y(c)o(haracter)g(is)i Fz(v)p |
| FC(,)f(then)g(only)h Fv(ar)n(g1)f FC(is)h(presen)o(t)f(and)g(it)g(is)h |
| (an)f(arra)o(y)f(of)g Fy(N)23 b FC(v)m(alues)c(of)332 |
| 1741 y(the)14 b(indicated)h(t)o(yp)q(e.)20 b(Finally)l(,)15 |
| b(w)o(e)e(indicate)i(an)f Fw(unsigned)f FC(t)o(yp)q(e)g(b)o(y)h(the)g |
| (shorthand)332 1797 y(of)h(prep)q(ending)j(a)d Fw(u)g |
| FC(to)g(the)h(b)q(eginning)i(of)d(the)g(t)o(yp)q(e)h(name)g(\(so)e |
| (that,)h(for)g(instance,)332 1854 y Fw(unsigned)23 b(char)14 |
| b FC(is)i(abbreviated)g Fw(uchar)p FC(\).)403 1910 y(F)l(or)e(example,) |
| 446 1997 y Fw(void)29 b Fz(Normal3)p FB(f)p Fz(fd)p FB(g)p |
| FC(\()h Fw(T)15 b Fv(ar)n(g)g FC(\))g Fw(;)332 2084 y |
| FC(indicates)i(the)e(t)o(w)o(o)f(declarations)446 2171 |
| y Fw(void)29 b Fz(Normal3f)p FC(\()i Fw(float)14 b Fv(ar)n(g1)p |
| Fw(,)h(float)g Fv(ar)n(g2)p Fw(,)g(float)g Fv(ar)n(g3)g |
| FC(\))g Fw(;)446 2227 y(void)27 b Fz(Normal3d)p FC(\()h |
| Fw(double)14 b Fv(ar)n(g1)p Fw(,)g(double)f Fv(ar)n(g2)p |
| Fw(,)i(double)e Fv(ar)n(g3)h FC(\))g Fw(;)332 2314 y |
| FC(while)446 2401 y Fw(void)29 b Fz(Normal3)p FB(f)p |
| Fz(fd)p FB(g)p Fz(v)p FC(\()h Fw(T)15 b Fv(ar)n(g)g FC(\))g |
| Fw(;)332 2488 y FC(means)g(the)h(t)o(w)o(o)d(declarations)p |
| eop |
| %%Page: 9 18 |
| 9 17 bop 120 137 a Fx(2.4.)34 b(BASIC)16 b(GL)g(OPERA)l(TION)852 |
| b FC(9)234 286 y Fw(void)30 b Fz(Normal3fv)p FC(\()g |
| Fw(float)14 b Fv(ar)n(g[3])h FC(\))g Fw(;)234 343 y(void)30 |
| b Fz(Normal3dv)p FC(\()g Fw(double)14 b Fv(ar)n(g[3])h |
| FC(\))g Fw(;)191 468 y FC(Argumen)o(ts)20 b(whose)h(t)o(yp)q(e)g(is)g |
| (\014xed)g(\(i.e.)37 b(not)20 b(indicated)j(b)o(y)e(a)f(su\016x)h(on)g |
| (the)120 524 y(command\))15 b(are)g(of)g(one)g(of)g(14)f(t)o(yp)q(es)h |
| (\(or)f(p)q(oin)o(ters)i(to)f(one)g(of)f(these\).)20 |
| b(These)c(t)o(yp)q(es)120 580 y(are)f(summarized)h(in)g(T)l(able)g |
| (2.2.)120 768 y Fs(2.4)67 b(Basic)22 b(GL)g(Op)r(eration)120 |
| 884 y FC(Figure)16 b(2.1)f(sho)o(ws)g(a)h(sc)o(hematic)g(diagram)f(of)h |
| (the)g(GL.)f(Commands)g(en)o(ter)h(the)g(GL)120 941 y(on)i(the)h(left.) |
| 28 b(Some)19 b(commands)e(sp)q(ecify)j(geometric)e(ob)s(jects)f(to)h(b) |
| q(e)h(dra)o(wn)e(while)120 997 y(others)k(con)o(trol)g(ho)o(w)g(the)g |
| (ob)s(jects)g(are)g(handled)i(b)o(y)e(the)h(v)m(arious)f(stages.)38 |
| b(Most)120 1054 y(commands)14 b(ma)o(y)e(b)q(e)j(accum)o(ulated)f(in)g |
| (a)f Fv(display)i(list)e FC(for)f(pro)q(cessing)j(b)o(y)e(the)h(GL)f |
| (at)120 1110 y(a)g(later)g(time.)20 b(Otherwise,)13 b(commands)g(are)g |
| (e\013ectiv)o(ely)h(sen)o(t)f(through)f(a)h(pro)q(cessing)120 |
| 1167 y(pip)q(eline)q(.)191 1231 y(The)j(\014rst)f(stage)g(pro)o(vides)g |
| (an)h(e\016cien)o(t)g(means)g(for)e(appro)o(ximating)i(curv)o(e)g(and) |
| 120 1287 y(surface)i(geometry)f(b)o(y)g(ev)m(aluating)i(p)q(olynomial)g |
| (functions)g(of)e(input)h(v)m(alues.)28 b(The)120 1344 |
| y(next)19 b(stage)e(op)q(erates)h(on)h(geometric)f(primitiv)o(es)i |
| (describ)q(ed)g(b)o(y)e(v)o(ertices:)27 b(p)q(oin)o(ts,)120 |
| 1400 y(line)18 b(segmen)o(ts,)d(and)g(p)q(olygons.)22 |
| b(In)16 b(this)g(stage)f(v)o(ertices)h(are)g(transformed)e(and)i(lit,) |
| 120 1457 y(and)h(primitiv)o(es)g(are)f(clipp)q(ed)j(to)c(a)h(viewing)h |
| (v)o(olume)g(in)g(preparation)f(for)f(the)i(next)120 |
| 1513 y(stage,)11 b(rasterization.)18 b(The)10 b(rasterizer)h(pro)q |
| (duces)g(a)f(series)h(of)f(framebu\013er)g(addresses)120 |
| 1569 y(and)17 b(v)m(alues)g(using)f(a)g(t)o(w)o(o-dimensional)h |
| (description)h(of)d(a)h(p)q(oin)o(t,)g(line)i(segmen)o(t,)d(or)120 |
| 1626 y(p)q(olygon.)21 b(Eac)o(h)16 b Fv(fr)n(agment)f |
| FC(so)g(pro)q(duced)h(is)g(fed)g(to)f(the)g(next)h(stage)e(that)h(p)q |
| (erforms)120 1682 y(op)q(erations)f(on)g(individual)i(fragmen)o(ts)d(b) |
| q(efore)h(they)f(\014nally)i(alter)f(the)g(framebu\013er.)120 |
| 1739 y(These)23 b(op)q(erations)f(include)i(conditional)g(up)q(dates)f |
| (in)o(to)f(the)g(framebu\013er)f(based)120 1795 y(on)16 |
| b(incoming)g(and)g(previously)h(stored)e(depth)h(v)m(alues)g(\(to)f |
| (e\013ect)g(depth)h(bu\013ering\),)120 1852 y(blending)h(of)d(incoming) |
| i(fragmen)o(t)e(colors)g(with)h(stored)f(colors,)h(as)f(w)o(ell)h(as)g |
| (masking)120 1908 y(and)h(other)f(logical)h(op)q(erations)f(on)g |
| (fragmen)o(t)g(v)m(alues.)191 1972 y(Finally)l(,)22 b(there)e(is)g(a)g |
| (w)o(a)o(y)e(to)h(b)o(ypass)h(the)g(v)o(ertex)f(pro)q(cessing)h(p)q |
| (ortion)g(of)g(the)120 2029 y(pip)q(eline)k(to)19 b(send)i(a)f(blo)q(c) |
| o(k)h(of)f(fragmen)o(ts)f(directly)j(to)d(the)h(individual)k(fragmen)o |
| (t)120 2085 y(op)q(erations,)16 b(ev)o(en)o(tually)h(causing)f(a)f(blo) |
| q(c)o(k)i(of)e(pixels)i(to)e(b)q(e)i(written)e(to)g(the)h(frame-)120 |
| 2142 y(bu\013er;)k(v)m(alues)f(ma)o(y)f(also)g(b)q(e)i(read)e(bac)o(k)g |
| (from)g(the)g(framebu\013er)g(or)g(copied)h(from)120 |
| 2198 y(one)12 b(p)q(ortion)h(of)e(the)h(framebu\013er)g(to)f(another.) |
| 18 b(These)12 b(transfers)g(ma)o(y)f(include)j(some)120 |
| 2255 y(t)o(yp)q(e)i(of)e(deco)q(ding)j(or)e(enco)q(ding.)191 |
| 2319 y(This)d(ordering)f(is)h(mean)o(t)e(only)i(as)f(a)f(to)q(ol)h(for) |
| g(describing)i(the)e(GL,)g(not)f(as)h(a)g(strict)120 |
| 2375 y(rule)19 b(of)e(ho)o(w)h(the)g(GL)g(is)g(implemen)o(ted,)i(and)e |
| (w)o(e)f(presen)o(t)h(it)g(only)h(as)e(a)h(means)f(to)120 |
| 2432 y(organize)e(the)g(v)m(arious)h(op)q(erations)f(of)f(the)h(GL.)g |
| (Ob)s(jects)f(suc)o(h)i(as)e(curv)o(ed)h(surfaces,)120 |
| 2488 y(for)g(instance,)h(ma)o(y)e(b)q(e)i(transformed)e(b)q(efore)i |
| (they)f(are)g(con)o(v)o(erted)g(to)f(p)q(olygons.)p eop |
| %%Page: 10 19 |
| 10 18 bop 332 137 a FC(10)643 b Fx(CHAPTER)16 b(2.)34 |
| b(OPENGL)16 b(OPERA)l(TION)p 332 582 1546 2 v 331 638 |
| 2 57 v 362 621 a FC(GL)f(T)o(yp)q(e)p 572 638 V 55 w(Minim)o(um)h(Num)o |
| (b)q(er)f(of)g(Bits)p 1137 638 V 50 w(Description)p 1877 |
| 638 V 332 640 1546 2 v 332 648 V 331 704 2 57 v 369 687 |
| a Fw(boolean)p 572 704 V 307 w FC(1)p 1137 704 V 295 |
| w(Bo)q(olean)p 1877 704 V 332 706 1546 2 v 331 819 2 |
| 113 v 405 746 a Fw(byte)p 572 819 V 343 w FC(8)p 1137 |
| 819 V 295 w(signed)50 b(2's)e(complemen)o(t)i(binary)1162 |
| 802 y(in)o(teger)p 1877 819 V 332 821 1546 2 v 331 877 |
| 2 57 v 393 860 a Fw(ubyte)p 572 877 V 331 w FC(8)p 1137 |
| 877 V 295 w(unsigned)17 b(binary)f(in)o(teger)p 1877 |
| 877 V 332 879 1546 2 v 331 992 2 113 v 393 918 a Fw(short)p |
| 572 992 V 319 w FC(16)p 1137 992 V 284 w(signed)50 b(2's)e(complemen)o |
| (t)i(binary)1162 975 y(in)o(teger)p 1877 992 V 332 993 |
| 1546 2 v 331 1050 2 57 v 381 1033 a Fw(ushort)p 572 1050 |
| V 307 w FC(16)p 1137 1050 V 284 w(unsigned)17 b(binary)f(in)o(teger)p |
| 1877 1050 V 332 1051 1546 2 v 331 1164 2 113 v 417 1091 |
| a Fw(int)p 572 1164 V 343 w FC(32)p 1137 1164 V 284 w(signed)50 |
| b(2's)e(complemen)o(t)i(binary)1162 1147 y(in)o(teger)p |
| 1877 1164 V 332 1166 1546 2 v 331 1222 2 57 v 405 1206 |
| a Fw(uint)p 572 1222 V 331 w FC(32)p 1137 1222 V 284 |
| w(unsigned)17 b(binary)f(in)o(teger)p 1877 1222 V 332 |
| 1224 1546 2 v 331 1281 2 57 v 393 1264 a Fw(sizei)p 572 |
| 1281 V 319 w FC(32)p 1137 1281 V 284 w(Non-negativ)o(e)g(binary)g(in)o |
| (teger)f(size)p 1877 1281 V 332 1282 1546 2 v 331 1339 |
| 2 57 v 405 1322 a Fw(enum)p 572 1339 V 331 w FC(32)p |
| 1137 1339 V 284 w(En)o(umerated)g(binary)h(in)o(teger)g(v)m(alue)p |
| 1877 1339 V 332 1340 1546 2 v 331 1397 2 57 v 357 1380 |
| a Fw(bitfield)p 572 1397 V 283 w FC(32)p 1137 1397 V |
| 284 w(Bit)g(\014eld)p 1877 1397 V 332 1398 1546 2 v 331 |
| 1455 2 57 v 393 1438 a Fw(float)p 572 1455 V 319 w FC(32)p |
| 1137 1455 V 284 w(Floating-p)q(oin)o(t)g(v)m(alue)p 1877 |
| 1455 V 332 1457 1546 2 v 331 1570 2 113 v 381 1496 a |
| Fw(clampf)p 572 1570 V 307 w FC(32)p 1137 1570 V 284 |
| w(Floating-p)q(oin)o(t)34 b(v)m(alue)f(clamp)q(ed)h(to)1162 |
| 1553 y([0)p Fy(;)8 b FC(1])p 1877 1570 V 332 1571 1546 |
| 2 v 331 1628 2 57 v 381 1611 a Fw(double)p 572 1628 V |
| 307 w FC(64)p 1137 1628 V 284 w(Floating-p)q(oin)o(t)16 |
| b(v)m(alue)p 1877 1628 V 332 1629 1546 2 v 331 1742 2 |
| 113 v 381 1669 a Fw(clampd)p 572 1742 V 307 w FC(64)p |
| 1137 1742 V 284 w(Floating-p)q(oin)o(t)34 b(v)m(alue)f(clamp)q(ed)h(to) |
| 1162 1725 y([0)p Fy(;)8 b FC(1])p 1877 1742 V 332 1744 |
| 1546 2 v 332 1821 a(T)l(able)18 b(2.2:)24 b(GL)18 b(data)f(t)o(yp)q |
| (es.)26 b(GL)18 b(t)o(yp)q(es)g(are)f(not)g(C)g(t)o(yp)q(es.)27 |
| b(Th)o(us,)18 b(for)f(example,)332 1878 y(GL)23 b(t)o(yp)q(e)g |
| Fw(int)f FC(is)h(referred)g(to)f(as)g Fw(GLint)g FC(outside)h(this)g |
| (do)q(cumen)o(t,)i(and)e(is)g(not)332 1934 y(necessarily)16 |
| b(equiv)m(alen)o(t)f(to)f(the)g(C)g(t)o(yp)q(e)g Fw(int)p |
| FC(.)19 b(An)c(implemen)o(tation)g(ma)o(y)e(use)i(more)332 |
| 1990 y(bits)f(than)f(the)g(n)o(um)o(b)q(er)h(indicated)h(in)f(the)f |
| (table)h(to)e(represen)o(t)i(a)f(GL)g(t)o(yp)q(e.)19 |
| b(Correct)332 2047 y(in)o(terpretation)d(of)f(in)o(teger)h(v)m(alues)g |
| (outside)g(the)g(minim)o(um)g(range)g(is)g(not)f(required,)332 |
| 2103 y(ho)o(w)o(ev)o(er.)p eop |
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| 1693 y(ated,)d(GL)g(op)q(eration)g(is)g(unde\014ned.)21 |
| b(\(These)12 b(commands)f(are)h(describ)q(ed)i(in)e(sections)120 |
| 1749 y(2.8,)i(3.6.1,)f(and)j(Chapter)f(6.\))120 1901 |
| y Fs(2.7)67 b(V)-6 b(ertex)23 b(Sp)r(eci\014cation)120 |
| 2006 y FC(V)l(ertices)12 b(are)e(sp)q(eci\014ed)j(b)o(y)e(giving)g |
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| FC(command:)234 2162 y Fw(void)30 b Fz(V)l(ertex)p FB(f)p |
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| 20 28 bop 332 137 a FC(20)643 b Fx(CHAPTER)16 b(2.)34 |
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| Fz(Begin)p FC(/)p Fz(End)h FC(pair)f(results)h(in)f(unde-)332 |
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| Fy(r)g FC(to)f(0)g(and)h Fy(q)i FC(to)c(1;)i Fz(T)l(exCo)q(ord3)f |
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| Fy(r)q FC(,)g(with)h Fy(q)h FC(set)e(to)f(1,)h(and)g |
| Fz(T)l(exCo)q(ord4)g FC(sets)g(all)h(four)f(texture)g(co)q(ordinates.) |
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| 1246 y Fw(void)29 b Fz(Normal3)p FB(f)p Fz(bsifd)p FB(g)p |
| FC(\()h Fw(T)15 b Fv(c)n(o)n(or)n(ds)g FC(\))g Fw(;)446 |
| 1303 y(void)29 b Fz(Normal3)p FB(f)p Fz(bsifd)p FB(g)p |
| Fz(v)p FC(\()h Fw(T)15 b Fv(c)n(o)n(or)n(ds)f FC(\))h |
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| 21 29 bop 120 137 a Fx(2.8.)34 b(VER)l(TEX)16 b(ARRA)l(YS)946 |
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| %%Page: 22 31 |
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| FC(sp)q(eci\014es)h(the)e(data)g(t)o(yp)q(e)g(of)g(the)g(v)m(alues)h |
| (stored)f(in)h(the)g(arra)o(y)l(.)k(Because)332 1585 |
| y(edge)h(\015ags)e(are)h(alw)o(a)o(ys)g(t)o(yp)q(e)g |
| Fw(boolean)p FC(,)g Fz(EdgeFlagP)o(oin)o(ter)g FC(has)h(no)f |
| Fv(typ)n(e)g FC(argu-)332 1641 y(men)o(t.)31 b Fv(size)p |
| FC(,)19 b(when)g(presen)o(t,)h(indicates)g(the)f(n)o(um)o(b)q(er)g(of)g |
| (v)m(alues)h(p)q(er)g(v)o(ertex)e(that)332 1698 y(are)i(stored)f(in)i |
| (the)f(arra)o(y)l(.)33 b(Because)21 b(normals)f(are)g(alw)o(a)o(ys)f |
| (sp)q(eci\014ed)j(with)e(three)332 1754 y(v)m(alues,)d |
| Fz(NormalP)o(oin)o(ter)f FC(has)g(no)g Fv(size)f FC(argumen)o(t.)22 |
| b(Lik)o(ewise,)17 b(b)q(ecause)g(color)f(in-)332 1811 |
| y(dices)f(and)f(edge)h(\015ags)e(are)h(alw)o(a)o(ys)f(sp)q(eci\014ed)j |
| (with)f(a)e(single)j(v)m(alue,)f Fz(IndexP)o(oin)o(ter)332 |
| 1867 y FC(and)20 b Fz(EdgeFlagP)o(oin)o(ter)h FC(also)e(ha)o(v)o(e)h |
| (no)f Fv(size)g FC(argumen)o(t.)33 b(T)l(able)40 b(2.4)19 |
| b(indicates)332 1924 y(the)f(allo)o(w)o(able)h(v)m(alues)g(for)f |
| Fv(size)f FC(and)h Fv(typ)n(e)g FC(\(when)g(presen)o(t\).)29 |
| b(F)l(or)17 b Fv(typ)n(e)h FC(the)g(v)m(alues)332 1980 |
| y Fr(BYTE)p FC(,)13 b Fr(SHORT)p FC(,)f Fr(INT)p FC(,)h |
| Fr(FLOAT)p FC(,)f(and)i Fr(DOUBLE)e FC(indicate)k(t)o(yp)q(es)d |
| Fw(byte)p FC(,)g Fw(short)p FC(,)g Fw(int)p FC(,)h Fw(float)p |
| FC(,)332 2037 y(and)d Fw(double)p FC(,)g(resp)q(ectiv)o(ely;)i(and)e |
| (the)g(v)m(alues)h Fr(UNSIGNED)p 1309 2037 14 2 v 14 |
| w(BYTE)p FC(,)e Fr(UNSIGNED)p 1610 2037 V 14 w(SHORT)p |
| FC(,)f(and)332 2093 y Fr(UNSIGNED)p 511 2093 V 14 w(INT)14 |
| b FC(indicate)i(t)o(yp)q(es)e Fw(ubyte)p FC(,)g Fw(ushort)p |
| FC(,)f(and)i Fw(uint)p FC(,)e(resp)q(ectiv)o(ely)l(.)22 |
| b(The)14 b(er-)332 2149 y(ror)19 b Fr(INVALID)p 567 2149 |
| V 14 w(VALUE)f FC(is)i(generated)f(if)h Fv(size)e FC(is)i(sp)q |
| (eci\014ed)i(with)d(a)g(v)m(alue)i(other)e(than)332 2206 |
| y(that)c(indicated)i(in)f(the)f(table.)403 2262 y(The)c(one,)h(t)o(w)o |
| (o,)f(three,)h(or)f(four)g(v)m(alues)i(in)f(an)g(arra)o(y)e(that)h |
| (corresp)q(ond)h(to)f(a)g(single)332 2319 y(v)o(ertex)i(comprise)h(an)f |
| (arra)o(y)f Fv(element)p FC(.)18 b(The)c(v)m(alues)g(within)g(eac)o(h)g |
| (arra)o(y)e(elemen)o(t)i(are)332 2375 y(stored)22 b(sequen)o(tially)i |
| (in)f(memory)l(.)41 b(If)22 b Fv(stride)g FC(is)h(sp)q(eci\014ed)i(as)d |
| (zero,)h(then)g(arra)o(y)332 2432 y(elemen)o(ts)17 b(are)e(stored)h |
| (sequen)o(tially)i(as)e(w)o(ell.)23 b(Otherwise)17 b(p)q(oin)o(ters)f |
| (to)g(the)g Fy(i)p FC(th)f(and)332 2488 y(\()p Fy(i)9 |
| b FC(+)g(1\)st)14 b(elemen)o(ts)i(of)e(an)h(arra)o(y)e(di\013er)i(b)o |
| (y)g Fv(stride)g FC(basic)g(mac)o(hine)h(units)f(\(t)o(ypically)p |
| eop |
| %%Page: 23 32 |
| 23 31 bop 120 137 a Fx(2.8.)34 b(VER)l(TEX)16 b(ARRA)l(YS)946 |
| b FC(23)120 286 y(unsigned)15 b(b)o(ytes\),)e(the)h(p)q(oin)o(ter)g(to) |
| f(the)g(\()p Fy(i)7 b FC(+)g(1\)st)k(elemen)o(t)k(b)q(eing)f(greater.) |
| 19 b(F)l(or)13 b(eac)o(h)120 343 y(command,)j Fv(p)n(ointer)g |
| FC(sp)q(eci\014es)h(the)f(lo)q(cation)h(in)g(memory)e(of)h(the)g |
| (\014rst)f(v)m(alue)i(of)f(the)120 399 y(\014rst)f(elemen)o(t)h(of)f |
| (the)g(arra)o(y)f(b)q(eing)j(sp)q(eci\014ed.)191 456 |
| y(An)e(individual)k(arra)o(y)14 b(is)h(enabled)i(or)e(disabled)i(b)o(y) |
| e(calling)i(one)e(of)234 548 y Fw(void)30 b Fz(EnableClien)o(tState)p |
| FC(\()j Fw(enum)14 b Fv(arr)n(ay)i FC(\))f Fw(;)234 604 |
| y(void)30 b Fz(DisableClien)o(tState)p FC(\()j Fw(enum)14 |
| b Fv(arr)n(ay)i FC(\))f Fw(;)120 696 y FC(with)37 b Fv(arr)n(ay)g |
| FC(set)f(to)f Fr(EDGE)p 645 696 14 2 v 15 w(FLAG)p 748 |
| 696 V 15 w(ARRAY)p FC(,)g Fr(TEXTURE)p 1075 696 V 14 |
| w(COORD)p 1199 696 V 15 w(ARRAY)p FC(,)g Fr(COLOR)p 1482 |
| 696 V 14 w(ARRAY)p FC(,)120 752 y Fr(INDEX)p 233 752 |
| V 15 w(ARRAY)p FC(,)19 b Fr(NORMAL)p 522 752 V 14 w(ARRAY)p |
| FC(,)g(or)g Fr(VERTEX)p 870 752 V 15 w(ARRAY)p FC(,)f(for)i(the)g(edge) |
| g(\015ag,)h(texture)f(co-)120 809 y(ordinate,)15 b(color,)g(color)h |
| (index,)g(normal,)e(or)h(v)o(ertex)g(arra)o(y)l(,)f(resp)q(ectiv)o(ely) |
| l(.)191 865 y(The)d Fy(i)p FC(th)g(elemen)o(t)h(of)f(ev)o(ery)g |
| (enabled)i(arra)o(y)d(is)i(transferred)f(to)f(the)h(GL)h(b)o(y)f |
| (calling)234 957 y Fw(void)30 b Fz(Arra)o(yElemen)o(t)p |
| FC(\()e Fw(int)15 b Fv(i)g FC(\))g Fw(;)120 1049 y FC(F)l(or)c(eac)o(h) |
| h(enabled)h(arra)o(y)l(,)e(it)g(is)i(as)e(though)g(the)h(corresp)q |
| (onding)g(command)g(from)e(sec-)120 1105 y(tion)k(2.7)e(or)h(section)h |
| (2.6.2)d(w)o(ere)i(called)i(with)f(a)f(p)q(oin)o(ter)g(to)g(elemen)o(t) |
| h Fy(i)p FC(.)19 b(F)l(or)13 b(the)g(v)o(er-)120 1161 |
| y(tex)f(arra)o(y)l(,)g(the)g(corresp)q(onding)i(command)e(is)h |
| Fz(V)l(ertex[)p Fj(size)p Fz(][)p Fj(ty)o(p)m(e)p Fz(]v)p |
| FC(,)c(where)k Fv(size)e FC(is)120 1218 y(one)i(of)g([2,3,4],)d(and)j |
| Fv(typ)n(e)g FC(is)g(one)g(of)g([s,i,f,d],)e(corresp)q(onding)j(to)e |
| (arra)o(y)g(t)o(yp)q(es)h Fw(short)p FC(,)120 1274 y |
| Fw(int)p FC(,)24 b Fw(float)p FC(,)f(and)f Fw(double)f |
| FC(resp)q(ectiv)o(ely)l(.)43 b(The)23 b(corresp)q(onding)g(commands)f |
| (for)120 1331 y(the)16 b(edge)h(\015ag,)e(texture)h(co)q(ordinate,)g |
| (color,)g(color)g(index,)h(and)f(normal)g(arra)o(ys)f(are)120 |
| 1387 y Fz(EdgeFlagv)p FC(,)j Fz(T)l(exCo)q(ord[)p Fj(size)p |
| Fz(][)p Fj(typ)m(e)p Fz(]v)p FC(,)c Fz(Color[)p Fj(size)p |
| Fz(][)p Fj(typ)m(e)p Fz(]v)p FC(,)h Fz(Index[)p Fj(typ)m(e)p |
| Fz(]v)p FC(,)120 1444 y(and)20 b Fz(Normal[)p Fj(typ)m(e)p |
| Fz(]v)p FC(,)f(resp)q(ectiv)o(ely)l(.)34 b(If)20 b(the)g(v)o(ertex)f |
| (arra)o(y)f(is)i(enabled,)i(it)e(is)g(as)120 1500 y(though)i |
| Fz(V)l(ertex[)p Fj(size)p Fz(][)p Fj(ty)o(p)m(e)p Fz(]v)c |
| FC(is)k(executed)g(last,)h(after)d(the)h(executions)i(of)e(the)120 |
| 1557 y(other)15 b(corresp)q(onding)h(commands.)191 1613 |
| y(Changes)i(made)h(to)f(arra)o(y)f(data)h(b)q(et)o(w)o(een)g(the)h |
| (execution)h(of)e Fz(Begin)h FC(and)g(the)120 1670 y(corresp)q(onding) |
| 13 b(execution)g(of)e Fz(End)h FC(ma)o(y)f(a\013ect)g(calls)i(to)e |
| Fz(Arra)o(yElemen)o(t)f FC(that)h(are)120 1726 y(made)k(within)i(the)e |
| (same)g Fz(Begin)p FC(/)p Fz(End)h FC(p)q(erio)q(d)g(in)g(non-sequen)o |
| (tial)g(w)o(a)o(ys.)j(That)c(is,)120 1782 y(a)i(call)g(to)f |
| Fz(Arra)o(yElemen)o(t)f FC(that)h(precedes)h(a)f(c)o(hange)h(to)f(arra) |
| o(y)f(data)h(ma)o(y)g(access)120 1839 y(the)e(c)o(hanged)h(data,)e(and) |
| h(a)g(call)h(that)e(follo)o(ws)h(a)g(c)o(hange)g(to)f(arra)o(y)g(data)g |
| (ma)o(y)h(access)120 1895 y(original)j(data.)191 1952 |
| y(The)e(command)234 2044 y Fw(void)30 b Fz(Dra)o(wArra)o(ys)p |
| FC(\()d Fw(enum)14 b Fv(mo)n(de)p Fw(,)i(int)e Fv(\014rst)p |
| Fw(,)h(sizei)f Fv(c)n(ount)h FC(\))g Fw(;)120 2135 y |
| FC(constructs)g(a)g(sequence)h(of)f(geometric)g(primitiv)o(es)i(using)f |
| (elemen)o(ts)g Fy(f)5 b(ir)q(st)15 b FC(through)120 2192 |
| y Fy(f)5 b(ir)q(st)r FC(+)q Fy(count)q FB(\000)q FC(1)10 |
| b(of)h(eac)o(h)f(enabled)i(arra)o(y)l(.)18 b Fv(mo)n(de)10 |
| b FC(sp)q(eci\014es)j(what)d(kind)h(of)f(primitiv)o(es)120 |
| 2248 y(are)15 b(constructed;)f(it)h(accepts)g(the)g(same)f(tok)o(en)h |
| (v)m(alues)h(as)e(the)h Fy(mode)f FC(parameter)g(of)120 |
| 2305 y(the)i Fz(Begin)g FC(command.)j(The)d(e\013ect)f(of)317 |
| 2396 y Fz(Dra)o(wArra)o(ys)e Fw(\()p Fy(mode;)8 b(f)d(ir)q(st;)j(count) |
| p Fw(\);)120 2488 y FC(is)16 b(the)f(same)g(as)g(the)g(e\013ect)g(of)g |
| (the)g(command)g(sequence)p eop |
| %%Page: 24 33 |
| 24 32 bop 332 137 a FC(24)643 b Fx(CHAPTER)16 b(2.)34 |
| b(OPENGL)16 b(OPERA)l(TION)529 286 y Fw(if)24 b(\()p |
| Fy(mode)14 b FC(or)h Fy(count)h FC(is)f(in)o(v)m(alid)j |
| Fw(\))590 343 y FC(generate)d(appropriate)g(error)529 |
| 399 y Fw(else)23 b FB(f)590 456 y Fw(int)g(i;)590 512 |
| y Fz(Begin)p Fw(\()p Fy(mode)p Fw(\);)590 569 y(for)g(\(i=0;)g(i)h(<)39 |
| b Fy(count)15 b Fw(;)24 b(i++\))650 625 y Fz(Arra)o(yElemen)o(t)p |
| Fw(\()p Fy(f)5 b(ir)q(st)p FC(+)14 b Fw(i\);)590 682 |
| y Fz(End)p Fw(\(\);)529 738 y FB(g)332 827 y FC(with)j(one)g |
| (exception:)23 b(the)17 b(curren)o(t)g(edge)f(\015ag,)h(texture)f(co)q |
| (ordinates,)h(color,)f(color)332 883 y(index,)f(and)e(normal)g(co)q |
| (ordinates)h(are)f(eac)o(h)g(indeterminate)i(after)d(the)i(execution)g |
| (of)332 940 y Fz(Dra)o(wArra)o(ys)p FC(,)f(if)j(the)g(corresp)q(onding) |
| h(arra)o(y)d(is)j(enabled.)23 b(Curren)o(t)16 b(v)m(alues)h(corre-)332 |
| 996 y(sp)q(onding)f(to)d(disabled)k(arra)o(ys)c(are)h(not)g(mo)q |
| (di\014ed)i(b)o(y)e(the)g(execution)i(of)e Fz(Dra)o(wAr-)332 |
| 1053 y(ra)o(ys)p FC(.)403 1109 y(The)h(command)446 1198 |
| y Fw(void)33 b Fz(Dra)o(wElemen)o(ts)p FC(\()f Fw(enum)16 |
| b Fv(mo)n(de)p Fw(,)i(sizei)e Fv(c)n(ount)p Fw(,)h(enum)f |
| Fv(typ)n(e)p Fw(,)514 1254 y(void)f Fv(*indic)n(es)f |
| FC(\))g Fw(;)332 1343 y FC(constructs)25 b(a)g(sequence)h(of)e |
| (geometric)i(primitiv)o(es)g(using)g(the)f Fv(c)n(ount)g |
| FC(elemen)o(ts)332 1399 y(whose)d(indices)h(are)f(stored)f(in)h |
| Fv(indic)n(es)p FC(.)39 b Fv(typ)n(e)21 b FC(m)o(ust)g(b)q(e)i(one)e |
| (of)h Fr(UNSIGNED)p 1716 1399 14 2 v 14 w(BYTE)p FC(,)332 |
| 1456 y Fr(UNSIGNED)p 511 1456 V 14 w(SHORT)p FC(,)c(or)i |
| Fr(UNSIGNED)p 903 1456 V 14 w(INT)p FC(,)e(indicating)k(that)d(the)h(v) |
| m(alues)h(in)f Fv(indic)n(es)f FC(are)332 1512 y(indices)24 |
| b(of)e(GL)g(t)o(yp)q(e)h Fw(ubyte)p FC(,)f Fw(ushort)p |
| FC(,)h(or)f Fw(uint)f FC(resp)q(ectiv)o(ely)l(.)43 b |
| Fv(mo)n(de)23 b FC(sp)q(eci\014es)332 1569 y(what)13 |
| b(kind)i(of)f(primitiv)o(es)h(are)e(constructed;)h(it)g(accepts)g(the)g |
| (same)g(tok)o(en)f(v)m(alues)i(as)332 1625 y(the)g Fy(mode)g |
| FC(parameter)g(of)f(the)i Fz(Begin)g FC(command.)k(The)15 |
| b(e\013ect)g(of)529 1714 y Fz(Dra)o(wElemen)o(ts)f Fw(\()p |
| Fy(mode;)8 b(count;)g(ty)r(pe;)g(indices)p Fw(\);)332 |
| 1803 y FC(is)16 b(the)f(same)g(as)g(the)g(e\013ect)g(of)g(the)g |
| (command)g(sequence)529 1891 y Fw(if)24 b(\()p Fy(mode;)14 |
| b(count;)h FC(or)g Fy(ty)r(pe)g FC(is)h(in)o(v)m(alid)i |
| Fw(\))590 1948 y FC(generate)d(appropriate)g(error)529 |
| 2004 y Fw(else)23 b FB(f)590 2061 y Fw(int)g(i;)590 2117 |
| y Fz(Begin)p Fw(\()p Fy(mode)p Fw(\);)590 2174 y(for)g(\(i=0;)g(i)h(<) |
| 39 b Fy(count)15 b Fw(;)24 b(i++\))650 2230 y Fz(Arra)o(yElemen)o(t)p |
| Fw(\()p Fy(indices)p FC([)p Fw(i)p FC(])p Fw(\);)590 |
| 2287 y Fz(End)p Fw(\(\);)529 2343 y FB(g)332 2432 y FC(with)17 |
| b(one)g(exception:)23 b(the)17 b(curren)o(t)g(edge)f(\015ag,)h(texture) |
| f(co)q(ordinates,)h(color,)f(color)332 2488 y(index,)21 |
| b(and)e(normal)f(co)q(ordinates)h(are)g(eac)o(h)f(indeterminate)j |
| (after)d(the)g(execution)p eop |
| %%Page: 25 34 |
| 25 33 bop 120 137 a Fx(2.8.)34 b(VER)l(TEX)16 b(ARRA)l(YS)946 |
| b FC(25)p 120 247 1952 2 v 119 303 2 57 v 145 286 a Fy(f)5 |
| b(or)q(mat)p 478 303 V 240 w(e)557 293 y Fu(t)p 628 303 |
| V 685 286 a Fy(e)706 293 y Fu(c)p 779 303 V 832 286 a |
| Fy(e)853 293 y Fu(n)p 929 303 V 955 286 a Fy(s)976 293 |
| y Fu(t)p 1015 303 V 1041 286 a Fy(s)1062 293 y Fu(c)p |
| 1103 303 V 1129 286 a Fy(s)1150 293 y Fu(v)p 1195 303 |
| V 1342 286 a Fy(t)1358 293 y Fu(c)p 1522 303 V 1553 286 |
| a Fy(p)1576 293 y Fu(c)p 1622 303 V 1649 286 a Fy(p)1672 |
| 293 y Fu(n)p 1721 303 V 1788 286 a Fy(p)1811 293 y Fu(v)p |
| 1896 303 V 1974 286 a Fy(s)p 2071 303 V 120 305 1952 |
| 2 v 120 313 V 119 369 2 57 v 145 353 a Fr(V2F)p 478 369 |
| V 293 w Fv(F)m(alse)p 628 369 V 48 w(F)m(alse)p 779 369 |
| V 48 w(F)m(alse)p 929 369 V 1015 369 V 1103 369 V 233 |
| w FC(2)p 1195 369 V 1522 369 V 1622 369 V 1721 369 V |
| 636 w(0)p 1896 369 V 139 w(2)p Fy(f)p 2071 369 V 119 |
| 426 V 145 409 a Fr(V3F)p 478 426 V 293 w Fv(F)m(alse)p |
| 628 426 V 48 w(F)m(alse)p 779 426 V 48 w(F)m(alse)p 929 |
| 426 V 1015 426 V 1103 426 V 233 w FC(3)p 1195 426 V 1522 |
| 426 V 1622 426 V 1721 426 V 636 w(0)p 1896 426 V 139 |
| w(3)p Fy(f)p 2071 426 V 119 482 V 145 465 a Fr(C4UB)p |
| 236 465 14 2 v 15 w(V2F)p 478 482 2 57 v 190 w Fv(F)m(alse)p |
| 628 482 V 52 w(T)m(rue)p 779 482 V 52 w(F)m(alse)p 929 |
| 482 V 1015 482 V 143 w FC(4)p 1103 482 V 67 w(2)p 1195 |
| 482 V 59 w Fr(UNSIGNED)p 1400 465 14 2 v 14 w(BYTE)p |
| 1522 482 2 57 v 62 w FC(0)p 1622 482 V 1721 482 V 216 |
| w Fy(c)p 1896 482 V 102 w(c)10 b FC(+)g(2)p Fy(f)p 2071 |
| 482 V 119 539 V 145 522 a Fr(C4UB)p 236 522 14 2 v 15 |
| w(V3F)p 478 539 2 57 v 190 w Fv(F)m(alse)p 628 539 V |
| 52 w(T)m(rue)p 779 539 V 52 w(F)m(alse)p 929 539 V 1015 |
| 539 V 143 w FC(4)p 1103 539 V 67 w(3)p 1195 539 V 59 |
| w Fr(UNSIGNED)p 1400 522 14 2 v 14 w(BYTE)p 1522 539 |
| 2 57 v 62 w FC(0)p 1622 539 V 1721 539 V 216 w Fy(c)p |
| 1896 539 V 102 w(c)g FC(+)g(3)p Fy(f)p 2071 539 V 120 |
| 540 1952 2 v 119 597 2 57 v 145 580 a Fr(C3F)p 214 580 |
| 14 2 v 15 w(V3F)p 478 597 2 57 v 212 w Fv(F)m(alse)p |
| 628 597 V 52 w(T)m(rue)p 779 597 V 52 w(F)m(alse)p 929 |
| 597 V 1015 597 V 143 w FC(3)p 1103 597 V 67 w(3)p 1195 |
| 597 V 143 w Fr(FLOAT)p 1522 597 V 146 w FC(0)p 1622 597 |
| V 1721 597 V 201 w(3)p Fy(f)p 1896 597 V 130 w FC(6)p |
| Fy(f)p 2071 597 V 119 653 V 145 636 a Fr(N3F)p 214 636 |
| 14 2 v 15 w(V3F)p 478 653 2 57 v 212 w Fv(F)m(alse)p |
| 628 653 V 48 w(F)m(alse)p 779 653 V 52 w(T)m(rue)p 929 |
| 653 V 1015 653 V 1103 653 V 237 w FC(3)p 1195 653 V 1522 |
| 653 V 1622 653 V 499 w(0)p 1721 653 V 101 w(3)p Fy(f)p |
| 1896 653 V 130 w FC(6)p Fy(f)p 2071 653 V 119 710 V 145 |
| 693 a Fr(C4F)p 214 693 14 2 v 15 w(N3F)p 295 693 V 15 |
| w(V3F)p 478 710 2 57 v 131 w Fv(F)m(alse)p 628 710 V |
| 52 w(T)m(rue)p 779 710 V 56 w(T)m(rue)p 929 710 V 1015 |
| 710 V 147 w FC(4)p 1103 710 V 67 w(3)p 1195 710 V 143 |
| w Fr(FLOAT)p 1522 710 V 146 w FC(0)p 1622 710 V 63 w(4)p |
| Fy(f)p 1721 710 V 93 w FC(7)p Fy(f)p 1896 710 V 118 w |
| FC(10)p Fy(f)p 2071 710 V 119 766 V 145 749 a Fr(T2F)p |
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| %%Page: 30 39 |
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| (oin)o(ting)120 547 y(up)g(\(i.e.)19 b(the)13 b(righ)o(t-hand)h(rule)g |
| (determines)g(the)f(sense)h(of)f(the)g(rotation)f(angle\).)19 |
| b(The)120 603 y(matrix)c(is)h(th)o(us)694 617 y Fi(0)694 |
| 690 y(B)694 715 y(B)694 741 y(@)954 641 y FC(0)806 698 |
| y Fy(R)113 b FC(0)954 754 y(0)738 811 y(0)51 b(0)g(0)45 |
| b(1)985 617 y Fi(1)985 690 y(C)985 715 y(C)985 741 y(A)1029 |
| 726 y Fy(:)120 895 y FC(Let)16 b Fz(u)c FC(=)h Fz(v)q |
| Fy(=)p FB(jj)p Fz(v)q FB(jj)d FC(=)j(\()7 b Fy(x)533 |
| 878 y FG(0)590 895 y Fy(y)614 878 y FG(0)671 895 y Fy(z)694 |
| 878 y FG(0)714 895 y FC(\))731 874 y Fu(T)759 895 y FC(.)20 |
| b(If)626 1043 y Fy(S)15 b FC(=)717 959 y Fi(0)717 1033 |
| y(@)785 986 y FC(0)69 b FB(\000)p Fy(z)935 970 y FG(0)1011 |
| 986 y Fy(y)1035 970 y FG(0)779 1043 y Fy(z)802 1026 y |
| FG(0)901 1043 y FC(0)g FB(\000)p Fy(x)1054 1026 y FG(0)761 |
| 1099 y FB(\000)p Fy(y)820 1083 y FG(0)893 1099 y Fy(x)919 |
| 1083 y FG(0)1018 1099 y FC(0)1073 959 y Fi(1)1073 1033 |
| y(A)120 1188 y FC(then)513 1245 y Fy(R)12 b FC(=)h Fz(uu)666 |
| 1226 y Fu(T)704 1245 y FC(+)d(cos)e Fy(\022)q FC(\()p |
| Fy(I)14 b FB(\000)c Fz(uu)995 1226 y Fu(T)1023 1245 y |
| FC(\))f(+)i(sin)d Fy(\022)q(S:)191 1326 y FC(The)15 b(argumen)o(ts)g |
| (to)234 1417 y Fw(void)30 b Fz(T)l(ranslate)p FB(f)p |
| Fz(fd)p FB(g)p FC(\()g Fw(T)15 b Fv(x)p Fw(,)g(T)g Fv(y)p |
| Fw(,)g(T)g Fv(z)g FC(\))g Fw(;)120 1508 y FC(giv)o(e)d(the)g(co)q |
| (ordinates)g(of)f(a)h(translation)f(v)o(ector)g(as)h(\()p |
| Fy(x)f(y)i(z)r FC(\))1149 1491 y Fu(T)1177 1508 y FC(.)18 |
| b(The)12 b(resulting)h(matrix)120 1564 y(is)j(a)f(translation)g(b)o(y)g |
| (the)h(sp)q(eci\014ed)h(v)o(ector:)698 1629 y Fi(0)698 |
| 1702 y(B)698 1727 y(B)698 1753 y(@)742 1653 y FC(1)45 |
| b(0)h(0)f Fy(x)742 1710 y FC(0)g(1)h(0)g Fy(y)742 1766 |
| y FC(0)f(0)h(1)g Fy(z)742 1823 y FC(0)f(0)h(0)g(1)980 |
| 1629 y Fi(1)980 1702 y(C)980 1727 y(C)980 1753 y(A)1024 |
| 1738 y Fy(:)234 1914 y Fw(void)30 b Fz(Scale)p FB(f)p |
| Fz(fd)p FB(g)p FC(\()g Fw(T)15 b Fv(x)p Fw(,)g(T)h Fv(y)p |
| Fw(,)f(T)g Fv(z)f FC(\))h Fw(;)120 2005 y FC(pro)q(duces)h(a)e(general) |
| h(scaling)h(along)f(the)g Fy(x)p FC(-,)f Fy(y)r FC(-,)h(and)f |
| Fy(z)r FC(-)h(axes.)20 b(The)15 b(corresp)q(onding)120 |
| 2062 y(matrix)g(is)698 2075 y Fi(0)698 2148 y(B)698 2173 |
| y(B)698 2200 y(@)741 2100 y Fy(x)46 b FC(0)g(0)g(0)743 |
| 2156 y(0)h Fy(y)g FC(0)f(0)743 2213 y(0)h(0)f Fy(z)i |
| FC(0)743 2269 y(0)f(0)f(0)g(1)981 2075 y Fi(1)981 2148 |
| y(C)981 2173 y(C)981 2200 y(A)1025 2185 y Fy(:)191 2341 |
| y FC(F)l(or)234 2432 y Fw(void)40 b Fz(F)l(rustum)p FC(\()f |
| Fw(double)19 b Fv(l)p Fw(,)i(double)f Fv(r)p Fw(,)h(double)e |
| Fv(b)p Fw(,)j(double)d Fv(t)p Fw(,)302 2488 y(double)c |
| Fv(n)p Fw(,)f(double)g Fv(f)i FC(\))e Fw(;)p eop |
| %%Page: 32 41 |
| 32 40 bop 332 137 a FC(32)643 b Fx(CHAPTER)16 b(2.)34 |
| b(OPENGL)16 b(OPERA)l(TION)332 286 y FC(the)i(co)q(ordinates)g(\()p |
| Fy(l)f(b)29 b FB(\000)12 b Fy(n)p FC(\))847 270 y Fu(T)892 |
| 286 y FC(and)18 b(\()p Fy(r)f(t)30 b FB(\000)12 b Fy(n)p |
| FC(\))1177 270 y Fu(T)1222 286 y FC(sp)q(ecify)19 b(the)e(p)q(oin)o(ts) |
| h(on)g(the)f(near)332 343 y(clipping)h(plane)e(that)e(are)h(mapp)q(ed)h |
| (to)f(the)g(lo)o(w)o(er-left)g(and)h(upp)q(er-righ)o(t)g(corners)f(of) |
| 332 399 y(the)i(windo)o(w,)g(resp)q(ectiv)o(ely)h(\(assuming)f(that)e |
| (the)i(ey)o(e)g(is)g(lo)q(cated)g(at)f(\(0)g(0)h(0\))1718 |
| 383 y Fu(T)1745 399 y FC(\).)23 b Fy(f)332 456 y FC(giv)o(es)16 |
| b(the)f(distance)h(from)f(the)h(ey)o(e)f(to)g(the)h(far)e(clipping)k |
| (plane.)k(If)16 b(either)g Fy(n)f FC(or)g Fy(f)21 b FC(is)332 |
| 512 y(less)16 b(than)f(or)g(equal)i(to)d(zero,)h Fy(l)h |
| FC(is)g(equal)g(to)f Fy(r)q FC(,)g Fy(b)g FC(is)h(equal)g(to)f |
| Fy(t)p FC(,)g(or)g Fy(n)h FC(is)g(equal)g(to)f Fy(f)5 |
| b FC(,)332 569 y(the)15 b(error)g Fr(INVALID)p 679 569 |
| 14 2 v 14 w(VALUE)f FC(results.)20 b(The)c(corresp)q(onding)g(matrix)f |
| (is)777 629 y Fi(0)777 702 y(B)777 727 y(B)777 752 y(B)777 |
| 779 y(@)834 640 y Fq(2)p Fu(n)p 826 647 56 2 v 826 673 |
| a(r)q FG(\000)p Fu(l)953 657 y FC(0)1072 640 y Fu(r)q |
| Fq(+)p Fu(l)p 1072 647 V 1072 673 a(r)q FG(\000)p Fu(l)1249 |
| 657 y FC(0)842 722 y(0)945 704 y Fq(2)p Fu(n)p 937 711 |
| V 937 737 a(t)p FG(\000)p Fu(b)1072 704 y(t)p Fq(+)p |
| Fu(b)p 1072 711 V 1072 737 a(t)p FG(\000)p Fu(b)1249 |
| 722 y FC(0)842 788 y(0)88 b(0)66 b FB(\000)1082 768 y |
| Fu(f)t Fq(+)p Fu(n)p 1082 778 70 2 v 1082 804 a(f)t FG(\000)p |
| Fu(n)1203 788 y FB(\000)1248 768 y Fq(2)p Fu(f)t(n)p |
| 1243 778 V 1243 804 a(f)t FG(\000)p Fu(n)842 845 y FC(0)88 |
| b(0)95 b FB(\000)p FC(1)120 b(0)1325 629 y Fi(1)1325 |
| 702 y(C)1325 727 y(C)1325 752 y(C)1325 779 y(A)1369 751 |
| y Fy(:)446 940 y Fw(void)49 b Fz(Ortho)p FC(\()h Fw(double)24 |
| b Fv(l)p Fw(,)j(double)e Fv(r)p Fw(,)i(double)d Fv(b)p |
| Fw(,)k(double)c Fv(t)p Fw(,)514 997 y(double)14 b Fv(n)p |
| Fw(,)h(double)f Fv(f)h FC(\))g Fw(;)332 1099 y FC(describ)q(es)d(a)e |
| (matrix)g(that)g(pro)q(duces)h(parallel)h(pro)s(jection.)18 |
| b(\()p Fy(l)11 b(b)f FB(\000)p Fy(n)p FC(\))1519 1082 |
| y Fu(T)1558 1099 y FC(and)g(\()p Fy(r)h(t)g FB(\000)p |
| Fy(n)p FC(\))1798 1082 y Fu(T)332 1155 y FC(sp)q(ecify)16 |
| b(the)f(p)q(oin)o(ts)g(on)g(the)f(near)h(clipping)i(plane)f(that)e(are) |
| g(mapp)q(ed)i(to)e(the)h(lo)o(w)o(er-)332 1212 y(left)f(and)f(upp)q |
| (er-righ)o(t)h(corners)f(of)g(the)g(windo)o(w,)g(resp)q(ectiv)o(ely)l |
| (.)21 b Fv(f)13 b FC(giv)o(es)g(the)h(distance)332 1268 |
| y(from)g(the)h(ey)o(e)f(to)g(the)h(far)f(clipping)j(plane.)j(If)15 |
| b Fy(l)g FC(is)g(equal)g(to)f Fy(r)q FC(,)g Fy(b)g FC(is)h(equal)h(to)e |
| Fy(t)p FC(,)g(or)g Fy(n)332 1325 y FC(is)i(equal)g(to)e |
| Fy(f)5 b FC(,)15 b(the)h(error)e Fr(INVALID)p 955 1325 |
| 14 2 v 14 w(VALUE)g FC(results.)21 b(The)15 b(corresp)q(onding)h |
| (matrix)f(is)777 1385 y Fi(0)777 1459 y(B)777 1483 y(B)777 |
| 1508 y(B)777 1535 y(@)845 1396 y Fq(2)p 826 1403 56 2 |
| v 826 1429 a Fu(r)q FG(\000)p Fu(l)953 1414 y FC(0)112 |
| b(0)99 b FB(\000)1250 1396 y Fu(r)q Fq(+)p Fu(l)p 1250 |
| 1403 V 1250 1429 a(r)q FG(\000)p Fu(l)842 1478 y FC(0)955 |
| 1460 y Fq(2)p 937 1467 V 937 1493 a Fu(t)p FG(\000)p |
| Fu(b)1088 1478 y FC(0)g FB(\000)1250 1460 y Fu(t)p Fq(+)p |
| Fu(b)p 1250 1467 V 1250 1493 a(t)p FG(\000)p Fu(b)842 |
| 1544 y FC(0)88 b(0)66 b FB(\000)1109 1527 y Fq(2)p 1082 |
| 1534 70 2 v 1082 1560 a Fu(f)t FG(\000)p Fu(n)1203 1544 |
| y FB(\000)1243 1524 y Fu(f)t Fq(+)p Fu(n)p 1243 1534 |
| V 1243 1560 a(f)t FG(\000)p Fu(n)842 1601 y FC(0)88 b(0)112 |
| b(0)138 b(1)1325 1385 y Fi(1)1325 1459 y(C)1325 1483 |
| y(C)1325 1508 y(C)1325 1535 y(A)1369 1507 y Fy(:)403 |
| 1690 y FC(There)12 b(is)g(another)f(4)s FB(\002)s FC(4)i(matrix)e(that) |
| g(is)h(applied)i(to)d(texture)h(co)q(ordinates.)19 b(This)332 |
| 1746 y(matrix)c(is)h(applied)h(as)762 1810 y Fi(0)762 |
| 1883 y(B)762 1908 y(B)762 1935 y(@)805 1835 y Fy(m)845 |
| 1842 y Fq(1)911 1835 y Fy(m)951 1842 y Fq(5)1024 1835 |
| y Fy(m)1064 1842 y Fq(9)1138 1835 y Fy(m)1178 1842 y |
| Fq(13)805 1891 y Fy(m)845 1898 y Fq(2)911 1891 y Fy(m)951 |
| 1898 y Fq(6)1016 1891 y Fy(m)1056 1898 y Fq(10)1138 1891 |
| y Fy(m)1178 1898 y Fq(14)805 1948 y Fy(m)845 1955 y Fq(3)911 |
| 1948 y Fy(m)951 1955 y Fq(7)1016 1948 y Fy(m)1056 1955 |
| y Fq(11)1138 1948 y Fy(m)1178 1955 y Fq(15)805 2004 y |
| Fy(m)845 2011 y Fq(4)911 2004 y Fy(m)951 2011 y Fq(8)1016 |
| 2004 y Fy(m)1056 2011 y Fq(12)1138 2004 y Fy(m)1178 2011 |
| y Fq(16)1223 1810 y Fi(1)1223 1883 y(C)1223 1908 y(C)1223 |
| 1935 y(A)1267 1810 y(0)1267 1883 y(B)1267 1908 y(B)1267 |
| 1935 y(@)1311 1835 y Fy(s)1314 1891 y(t)1311 1948 y(r)1311 |
| 2004 y(q)1340 1810 y Fi(1)1340 1883 y(C)1340 1908 y(C)1340 |
| 1935 y(A)1384 1920 y Fy(;)332 2093 y FC(where)g(the)g(left)g(matrix)f |
| (is)h(the)g(curren)o(t)g(texture)f(matrix.)24 b(The)17 |
| b(matrix)f(is)i(applied)332 2149 y(to)13 b(the)i(co)q(ordinates)f |
| (resulting)h(from)e(texture)h(co)q(ordinate)g(generation)h(\(whic)o(h)f |
| (ma)o(y)332 2206 y(simply)e(b)q(e)f(the)g(curren)o(t)f(texture)h(co)q |
| (ordinates\),)g(and)f(the)h(resulting)h(transformed)d(co-)332 |
| 2262 y(ordinates)16 b(b)q(ecome)g(the)f(texture)g(co)q(ordinates)h |
| (asso)q(ciated)f(with)h(a)f(v)o(ertex.)20 b(Setting)332 |
| 2319 y(the)14 b(matrix)g(mo)q(de)g(to)g Fr(TEXTURE)f |
| FC(causes)h(the)g(already)g(describ)q(ed)j(matrix)c(op)q(erations)332 |
| 2375 y(to)i(apply)h(to)e(the)h(texture)g(matrix.)403 |
| 2432 y(There)e(is)g(a)g(stac)o(k)f(of)h(matrices)g(for)f(eac)o(h)h(of)g |
| (the)g(matrix)g(mo)q(des.)19 b(F)l(or)12 b Fr(MODELVIEW)332 |
| 2488 y FC(mo)q(de,)k(the)h(stac)o(k)e(depth)i(is)g(at)e(least)i(32)e |
| (\(that)g(is,)i(there)f(is)h(a)f(stac)o(k)f(of)h(at)g(least)g(32)p |
| eop |
| %%Page: 33 42 |
| 33 41 bop 120 137 a Fx(2.10.)34 b(COORDINA)l(TE)17 b(TRANSF)o(ORMA)l |
| (TIONS)517 b FC(33)120 286 y(mo)q(del-view)21 b(matrices\).)30 |
| b(F)l(or)18 b(the)h(other)f(mo)q(des,)h(the)g(depth)g(is)h(at)e(least)g |
| (2.)30 b(The)120 343 y(curren)o(t)18 b(matrix)f(in)h(an)o(y)f(mo)q(de)h |
| (is)g(the)f(matrix)g(on)h(the)f(top)g(of)g(the)h(stac)o(k)f(for)f(that) |
| 120 399 y(mo)q(de.)234 482 y Fw(void)30 b Fz(PushMatrix)p |
| FC(\()f Fw(void)39 b FC(\))14 b Fw(;)120 565 y FC(pushes)19 |
| b(the)e(stac)o(k)g(do)o(wn)g(b)o(y)h(one,)g(duplicating)h(the)f(curren) |
| o(t)f(matrix)h(in)g(b)q(oth)g(the)120 621 y(top)d(of)g(the)g(stac)o(k)g |
| (and)g(the)g(en)o(try)g(b)q(elo)o(w)h(it.)234 704 y Fw(void)30 |
| b Fz(P)o(opMatrix)p FC(\()f Fw(void)39 b FC(\))15 b Fw(;)120 |
| 787 y FC(p)q(ops)k(the)f(top)g(en)o(try)g(o\013)f(of)h(the)g(stac)o(k,) |
| g(replacing)i(the)e(curren)o(t)g(matrix)g(with)h(the)120 |
| 843 y(matrix)12 b(that)f(w)o(as)f(the)i(second)g(en)o(try)g(in)g(the)g |
| (stac)o(k.)18 b(The)12 b(pushing)g(or)g(p)q(opping)h(tak)o(es)120 |
| 900 y(place)20 b(on)f(the)g(stac)o(k)f(corresp)q(onding)i(to)e(the)h |
| (curren)o(t)f(matrix)h(mo)q(de.)31 b(P)o(opping)19 b(a)120 |
| 956 y(matrix)c(o\013)g(a)f(stac)o(k)h(with)g(only)h(one)f(en)o(try)g |
| (generates)g(the)g(error)f Fr(STACK)p 1394 956 14 2 v |
| 15 w(UNDERFLOW)p FC(;)120 1013 y(pushing)j(a)e(matrix)g(on)o(to)f(a)h |
| (full)h(stac)o(k)f(generates)g Fr(STACK)p 1125 1013 V |
| 14 w(OVERFLOW)p FC(.)191 1069 y(The)22 b(state)f(required)i(to)f |
| (implemen)o(t)h(transformations)d(consists)i(of)g(a)f(three-)120 |
| 1126 y(v)m(alued)f(in)o(teger)e(indicating)h(the)f(curren)o(t)g(matrix) |
| f(mo)q(de,)h(a)g(stac)o(k)f(of)g(at)g(least)h(t)o(w)o(o)120 |
| 1182 y(4)c FB(\002)g FC(4)20 b(matrices)h(for)f(eac)o(h)h(of)f |
| Fr(PROJECTION)f FC(and)h Fr(TEXTURE)g FC(with)h(asso)q(ciated)g(stac)o |
| (k)120 1239 y(p)q(oin)o(ters,)16 b(and)g(a)g(stac)o(k)e(of)i(at)f |
| (least)h(32)f(4)10 b FB(\002)h FC(4)k(matrices)h(with)g(an)g(asso)q |
| (ciated)g(stac)o(k)120 1295 y(p)q(oin)o(ter)g(for)f Fr(MODELVIEW)p |
| FC(.)e(Initially)l(,)18 b(there)e(is)g(only)g(one)f(matrix)g(on)h(eac)o |
| (h)f(stac)o(k,)g(and)120 1351 y(all)i(matrices)e(are)g(set)g(to)f(the)h |
| (iden)o(tit)o(y)l(.)21 b(The)16 b(initial)h(matrix)e(mo)q(de)g(is)h |
| Fr(MODELVIEW)p FC(.)120 1471 y Fl(2.10.3)56 b(Normal)17 |
| b(T)-5 b(ransformation)120 1557 y FC(Finally)l(,)20 b(w)o(e)e(consider) |
| h(ho)o(w)e(the)h(mo)q(del-view)i(matrix)d(a\013ects)g(normals.)28 |
| b(Normals)120 1613 y(are)14 b(of)g(in)o(terest)h(only)g(in)g(ey)o(e)f |
| (co)q(ordinates,)h(so)e(the)i(rules)g(go)o(v)o(erning)f(their)h |
| (transfor-)120 1670 y(mation)g(to)g(other)g(co)q(ordinate)g(systems)g |
| (are)g(not)g(examined.)191 1726 y(Normals)j(sen)o(t)g(to)f(the)i(GL)f |
| (ma)o(y)f(or)h(ma)o(y)f(not)h(ha)o(v)o(e)g(unit)h(length.)29 |
| b(If)19 b(normal-)120 1783 y(ization)d(is)g(enabled,)g(then)f(normals)g |
| (sp)q(eci\014ed)i(with)f(the)f Fz(Normal3)g FC(command)g(are)120 |
| 1839 y(normalized)i(after)d(transformation.)19 b(Normalization)d(is)f |
| (con)o(trolled)h(with)234 1922 y Fw(void)30 b Fz(Enable)p |
| FC(\()h Fw(enum)15 b Fv(tar)n(get)g FC(\))g Fw(;)120 |
| 2005 y FC(and)234 2088 y Fw(void)30 b Fz(Disable)p FC(\()h |
| Fw(enum)15 b Fv(tar)n(get)g FC(\))g Fw(;)120 2170 y FC(with)k |
| Fv(tar)n(get)g FC(equal)g(to)f Fr(NORMALIZE)p FC(.)e(This)j(requires)g |
| (one)f(bit)h(of)f(state.)29 b(The)19 b(initial)120 2227 |
| y(state)c(is)g(for)g(normals)g(not)g(to)f(b)q(e)i(normalized.)191 |
| 2283 y(A)22 b(normal)f(at)g(a)g(p)q(oin)o(t)h(de\014nes)h(a)e(plane)h |
| (at)f(that)g(p)q(oin)o(t.)39 b(If)22 b(the)g(normal)f(is)120 |
| 2415 y(\()8 b Fy(n)173 2422 y Fu(x)240 2415 y Fy(n)267 |
| 2422 y Fu(y)334 2415 y Fy(n)361 2422 y Fu(z)389 2415 |
| y FC(\))21 b(and)h(the)g(p)q(oin)o(t)h(is)786 2306 y |
| Fi(0)786 2379 y(B)786 2404 y(B)786 2430 y(@)834 2330 |
| y Fy(x)835 2387 y(y)835 2443 y(z)830 2500 y(w)871 2306 |
| y Fi(1)871 2379 y(C)871 2404 y(C)871 2430 y(A)908 2415 |
| y FC(,)g(then)f(for)f(the)h(p)q(oin)o(t)h(to)e(satisfy)h(the)p |
| eop |
| %%Page: 34 43 |
| 34 42 bop 332 137 a FC(34)643 b Fx(CHAPTER)16 b(2.)34 |
| b(OPENGL)16 b(OPERA)l(TION)332 286 y FC(plane)g(equation)g(w)o(e)f(m)o |
| (ust)f(ha)o(v)o(e)796 449 y(\()8 b Fy(n)849 456 y Fu(x)916 |
| 449 y Fy(n)943 456 y Fu(y)1010 449 y Fy(n)1037 456 y |
| Fu(z)1102 449 y Fy(q)i FC(\))1157 340 y Fi(0)1157 413 |
| y(B)1157 438 y(B)1157 465 y(@)1205 365 y Fy(x)1206 421 |
| y(y)1206 478 y(z)1201 534 y(w)1242 340 y Fi(1)1242 413 |
| y(C)1242 438 y(C)1242 465 y(A)1291 449 y FC(=)j(0)332 |
| 612 y(whence)698 792 y Fy(q)h FC(=)785 707 y FB(\000)p |
| FC(\()8 b Fy(n)873 714 y Fu(x)940 707 y Fy(n)967 714 |
| y Fu(y)1034 707 y Fy(n)1061 714 y Fu(z)1089 707 y FC(\))1114 |
| 623 y Fi(0)1114 697 y(@)1158 650 y Fy(x)1159 707 y(y)1159 |
| 763 y(z)1191 623 y Fi(1)1191 697 y(A)p 785 781 443 2 |
| v 990 823 a Fy(w)1233 792 y(;)98 b(w)13 b FB(6)p FC(=)g(0)332 |
| 879 y(or)20 b Fy(q)j FC(=)f(0)e(if)h Fy(w)h FC(=)g(0.)35 |
| b(Therefore,)22 b(if)e(the)h(mo)q(del-view)h(matrix)e(is)h |
| Fy(M)5 b FC(,)22 b(then)e(the)332 935 y(transformed)14 |
| b(plane)j(equation)e(is)608 1023 y(\()7 b Fy(n)660 1030 |
| y Fu(x)682 1006 y FG(0)740 1023 y Fy(n)767 1030 y Fu(y)788 |
| 1006 y FG(0)845 1023 y Fy(n)872 1030 y Fu(z)892 1006 |
| y FG(0)949 1023 y Fy(q)971 1006 y FG(0)990 1023 y FC(\))12 |
| b(=)h(\()8 b Fy(n)1121 1030 y Fu(x)1188 1023 y Fy(n)1215 |
| 1030 y Fu(y)1282 1023 y Fy(n)1309 1030 y Fu(z)1374 1023 |
| y Fy(q)i FC(\))g FB(\001)f Fy(M)1503 1004 y FG(\000)p |
| Fq(1)332 1110 y FC(and)15 b(the)h(transformed)e(normal)h(is)980 |
| 1205 y(1)p 796 1226 392 2 v 796 1234 a Fi(q)p 837 1234 |
| 350 2 v 837 1285 a Fy(n)864 1292 y Fu(x)886 1272 y FG(0)898 |
| 1266 y Fq(2)928 1285 y FC(+)10 b Fy(n)1000 1292 y Fu(y)1021 |
| 1272 y FG(0)1033 1266 y Fq(2)1063 1285 y FC(+)g Fy(n)1135 |
| 1292 y Fu(z)1155 1272 y FG(0)1167 1266 y Fq(2)1199 1152 |
| y Fi(0)1199 1226 y(@)1243 1180 y Fy(n)1270 1187 y Fu(x)1292 |
| 1163 y FG(0)1244 1236 y Fy(n)1271 1243 y Fu(y)1292 1220 |
| y FG(0)1244 1293 y Fy(n)1271 1300 y Fu(z)1291 1276 y |
| FG(0)1312 1152 y Fi(1)1312 1226 y(A)1355 1236 y Fy(:)365 |
| b FC(\(2.1\))332 1374 y(If)14 b(normalization)g(is)h(disabled,)g(then)f |
| (the)g(square)f(ro)q(ot)g(in)h(equation)g(2.1)f(is)h(replaced)332 |
| 1430 y(with)j(1.)23 b(Otherwise,)17 b(the)g(square)f(ro)q(ot)f(remains) |
| i(as)f(written.)24 b(If)16 b Fy(M)1546 1437 y Fu(u)1585 |
| 1430 y FC(is)h(the)f(upp)q(er)332 1487 y(leftmost)10 |
| b(3x3)g(matrix)g(tak)o(en)g(from)f(M,)h(implemen)o(tations)h(ma)o(y)f |
| (c)o(ho)q(ose)g(to)g(transform)332 1543 y(\()d Fy(n)384 |
| 1550 y Fu(x)452 1543 y Fy(n)479 1550 y Fu(y)545 1543 |
| y Fy(n)572 1550 y Fu(z)600 1543 y FC(\))15 b(to)g(ey)o(e)g(co)q |
| (ordinates)g(using)681 1631 y(\()7 b Fy(n)733 1638 y |
| Fu(x)756 1614 y FG(0)813 1631 y Fy(n)840 1638 y Fu(y)861 |
| 1614 y FG(0)918 1631 y Fy(n)945 1638 y Fu(z)965 1614 |
| y FG(0)984 1631 y FC(\))13 b(=)g(\()7 b Fy(n)1115 1638 |
| y Fu(x)1182 1631 y Fy(n)1209 1638 y Fu(y)1276 1631 y |
| Fy(n)1303 1638 y Fu(z)1331 1631 y FC(\))i FB(\001)h Fy(M)1430 |
| 1612 y FG(\000)p Fq(1)1425 1642 y Fu(u)332 1718 y FC(follo)o(w)o(ed)16 |
| b(b)o(y)f(equation)30 b(2.1.)403 1775 y(Because)25 b(w)o(e)g(sp)q |
| (ecify)h(neither)f(the)g(\015oating-p)q(oin)o(t)h(format)d(nor)i(the)f |
| (means)332 1831 y(for)c(matrix)g(in)o(v)o(ersion,)h(w)o(e)f(cannot)g |
| (sp)q(ecify)i(b)q(eha)o(vior)f(in)g(the)f(case)g(of)g(a)g(p)q(o)q |
| (orly-)332 1888 y(conditioned)f(\(nearly)f(singular\))g(mo)q(del-view)h |
| (matrix)e Fy(M)5 b FC(.)26 b(In)18 b(case)f(of)g(an)g(exactly)332 |
| 1944 y(singular)11 b(matrix,)g(the)f(transformed)g(normal)g(is)h |
| (unde\014ned.)20 b(If)11 b(the)f(GL)g(implemen)o(ta-)332 |
| 2001 y(tion)k(determines)g(that)f(the)h(mo)q(del-view)h(matrix)f(is)g |
| (unin)o(v)o(ertible,)h(then)f(the)g(en)o(tries)332 2057 |
| y(in)k(the)f(in)o(v)o(erted)h(matrix)f(are)f(arbitrary)l(.)26 |
| b(In)17 b(an)o(y)g(case,)g(neither)h(normal)g(transfor-)332 |
| 2114 y(mation)f(nor)f(use)h(of)g(the)f(transformed)g(normal)h(ma)o(y)f |
| (lead)h(to)g(GL)f(in)o(terruption)i(or)332 2170 y(termination.)332 |
| 2289 y Fl(2.10.4)55 b(Generating)18 b(texture)f(co)r(ordinates)332 |
| 2375 y FC(T)l(exture)f(co)q(ordinates)g(asso)q(ciated)g(with)f(a)h(v)o |
| (ertex)f(ma)o(y)g(either)h(b)q(e)g(tak)o(en)g(from)e(the)332 |
| 2432 y(curren)o(t)g(texture)h(co)q(ordinates)f(or)g(generated)h |
| (according)g(to)f(a)g(function)h(dep)q(enden)o(t)332 |
| 2488 y(on)g(v)o(ertex)g(co)q(ordinates.)20 b(The)c(command)p |
| eop |
| %%Page: 35 44 |
| 35 43 bop 120 137 a Fx(2.10.)34 b(COORDINA)l(TE)17 b(TRANSF)o(ORMA)l |
| (TIONS)517 b FC(35)234 286 y Fw(void)30 b Fz(T)l(exGen)p |
| FB(f)p Fz(ifd)p FB(g)p FC(\()f Fw(enum)15 b Fv(c)n(o)n(or)n(d)p |
| Fw(,)g(enum)f Fv(pname)p Fw(,)i(T)f Fv(p)n(ar)n(am)g |
| FC(\))g Fw(;)234 343 y(void)30 b Fz(T)l(exGen)p FB(f)p |
| Fz(ifd)p FB(g)p Fz(v)p FC(\()f Fw(enum)15 b Fv(c)n(o)n(or)n(d)p |
| Fw(,)f(enum)h Fv(pname)p Fw(,)g(T)g Fv(p)n(ar)n(ams)g |
| FC(\))g Fw(;)120 433 y FC(con)o(trols)h(texture)g(co)q(ordinate)g |
| (generation.)23 b Fv(c)n(o)n(or)n(d)16 b FC(m)o(ust)f(b)q(e)i(one)f(of) |
| g(the)g(constan)o(ts)120 490 y Fr(S)p FC(,)k Fr(T)p FC(,)g |
| Fr(R)p FC(,)g(or)f Fr(Q)p FC(,)h(indicating)i(that)e(the)h(p)q(ertinen) |
| o(t)g(co)q(ordinate)g(is)f(the)h Fy(s)p FC(,)g Fy(t)p |
| FC(,)h Fy(r)q FC(,)f(or)f Fy(q)120 546 y FC(co)q(ordinate,)15 |
| b(resp)q(ectiv)o(ely)l(.)22 b(In)15 b(the)g(\014rst)f(form)g(of)h(the)g |
| (command,)f Fv(p)n(ar)n(am)h FC(is)g(a)g(sym-)120 603 |
| y(b)q(olic)d(constan)o(t)e(sp)q(ecifying)i(a)d(single-v)m(alued)14 |
| b(texture)c(generation)g(parameter;)h(in)g(the)120 659 |
| y(second)17 b(form,)f Fv(p)n(ar)n(ams)g FC(is)h(a)f(p)q(oin)o(ter)h(to) |
| f(an)g(arra)o(y)f(of)h(v)m(alues)i(that)d(sp)q(ecify)j(texture)120 |
| 716 y(generation)d(parameters.)k Fv(pname)c FC(m)o(ust)f(b)q(e)h(one)g |
| (of)f(the)h(three)g(sym)o(b)q(olic)h(constan)o(ts)120 |
| 772 y Fr(TEXTURE)p 277 772 14 2 v 15 w(GEN)p 358 772 |
| V 15 w(MODE)p FC(,)c Fr(OBJECT)p 618 772 V 14 w(PLANE)p |
| FC(,)g(or)h Fr(EYE)p 887 772 V 15 w(PLANE)p FC(.)f(If)i |
| Fv(pname)g FC(is)g Fr(TEXTURE)p 1423 772 V 14 w(GEN)p |
| 1503 772 V 15 w(MODE)p FC(,)120 829 y(then)d(either)h |
| Fv(p)n(ar)n(ams)e FC(p)q(oin)o(ts)i(to)e(or)g Fv(p)n(ar)n(am)h |
| FC(is)g(an)g(in)o(teger)g(that)e(is)j(one)f(of)f(the)h(sym)o(b)q(olic) |
| 120 885 y(constan)o(ts)k Fr(OBJECT)p 457 885 V 14 w(LINEAR)p |
| FC(,)f Fr(EYE)p 696 885 V 15 w(LINEAR)p FC(,)f(or)i Fr(SPHERE)p |
| 1057 885 V 14 w(MAP)p FC(.)191 941 y(If)10 b Fr(TEXTURE)p |
| 388 941 V 15 w(GEN)p 469 941 V 15 w(MODE)f FC(indicates)j |
| Fr(OBJECT)p 898 941 V 14 w(LINEAR)p FC(,)d(then)h(the)h(generation)f |
| (function)120 998 y(for)15 b(the)g(co)q(ordinate)h(indicated)h(b)o(y)e |
| Fv(c)n(o)n(or)n(d)g FC(is)562 1096 y Fy(g)f FC(=)e Fy(p)668 |
| 1103 y Fq(1)688 1096 y Fy(x)714 1103 y Fu(o)743 1096 |
| y FC(+)f Fy(p)812 1103 y Fq(2)831 1096 y Fy(y)853 1103 |
| y Fu(o)883 1096 y FC(+)f Fy(p)951 1103 y Fq(3)971 1096 |
| y Fy(z)992 1103 y Fu(o)1021 1096 y FC(+)h Fy(p)1090 1103 |
| y Fq(4)1109 1096 y Fy(w)1142 1103 y Fu(o)1161 1096 y |
| Fy(:)120 1194 y(x)146 1201 y Fu(o)165 1194 y FC(,)19 |
| b Fy(y)219 1201 y Fu(o)239 1194 y FC(,)f Fy(z)291 1201 |
| y Fu(o)310 1194 y FC(,)h(and)f Fy(w)466 1201 y Fu(o)503 |
| 1194 y FC(are)g(the)h(ob)s(ject)e(co)q(ordinates)i(of)f(the)g(v)o |
| (ertex.)29 b Fy(p)1373 1201 y Fq(1)1392 1194 y Fy(;)8 |
| b(:)g(:)g(:)d(;)j(p)1517 1201 y Fq(4)1554 1194 y FC(are)120 |
| 1251 y(sp)q(eci\014ed)18 b(b)o(y)d(calling)i Fz(T)l(exGen)e |
| FC(with)h Fv(pname)f FC(set)g(to)g Fr(OBJECT)p 1215 1251 |
| V 14 w(PLANE)f FC(in)j(whic)o(h)f(case)120 1307 y Fv(p)n(ar)n(ams)e |
| FC(p)q(oin)o(ts)g(to)e(an)i(arra)o(y)e(con)o(taining)i |
| Fy(p)883 1314 y Fq(1)903 1307 y Fy(;)8 b(:)g(:)g(:)d(;)j(p)1028 |
| 1314 y Fq(4)1046 1307 y FC(.)20 b(There)13 b(is)h(a)f(distinct)i(group) |
| e(of)120 1364 y(plane)19 b(equation)f(co)q(e\016cien)o(ts)g(for)f(eac)o |
| (h)g(texture)g(co)q(ordinate;)i Fv(c)n(o)n(or)n(d)e FC(indicates)i(the) |
| 120 1420 y(co)q(ordinate)d(to)f(whic)o(h)h(the)f(sp)q(eci\014ed)i(co)q |
| (e\016cien)o(ts)f(p)q(ertain.)191 1477 y(If)f Fr(TEXTURE)p |
| 393 1477 V 15 w(GEN)p 474 1477 V 15 w(MODE)f FC(indicates)j |
| Fr(EYE)p 847 1477 V 15 w(LINEAR)p FC(,)c(then)j(the)f(function)h(is)569 |
| 1575 y Fy(g)e FC(=)f Fy(p)676 1556 y FG(0)676 1586 y |
| Fq(1)696 1575 y Fy(x)722 1582 y Fu(e)750 1575 y FC(+)e |
| Fy(p)819 1556 y FG(0)819 1586 y Fq(2)838 1575 y Fy(y)860 |
| 1582 y Fu(e)889 1575 y FC(+)g Fy(p)958 1556 y FG(0)958 |
| 1586 y Fq(3)977 1575 y Fy(z)998 1582 y Fu(e)1027 1575 |
| y FC(+)f Fy(p)1095 1556 y FG(0)1095 1586 y Fq(4)1115 |
| 1575 y Fy(w)1148 1582 y Fu(e)120 1673 y FC(where)428 |
| 1729 y(\()d Fy(p)476 1713 y FG(0)476 1741 y Fq(1)541 |
| 1729 y Fy(p)564 1713 y FG(0)564 1741 y Fq(2)630 1729 |
| y Fy(p)653 1713 y FG(0)653 1741 y Fq(3)718 1729 y Fy(p)741 |
| 1713 y FG(0)741 1741 y Fq(4)768 1729 y FC(\))12 b(=)h(\()7 |
| b Fy(p)894 1736 y Fq(1)959 1729 y Fy(p)982 1736 y Fq(2)1047 |
| 1729 y Fy(p)1070 1736 y Fq(3)1135 1729 y Fy(p)1158 1736 |
| y Fq(4)1186 1729 y FC(\))g Fy(M)1260 1710 y FG(\000)p |
| Fq(1)120 1811 y Fy(x)146 1818 y Fu(e)165 1811 y FC(,)23 |
| b Fy(y)223 1818 y Fu(e)242 1811 y FC(,)h Fy(z)300 1818 |
| y Fu(e)318 1811 y FC(,)g(and)e Fy(w)483 1818 y Fu(e)523 |
| 1811 y FC(are)g(the)g(ey)o(e)h(co)q(ordinates)f(of)g(the)g(v)o(ertex.) |
| 41 b Fy(p)1369 1818 y Fq(1)1388 1811 y Fy(;)8 b(:)g(:)g(:)d(;)j(p)1513 |
| 1818 y Fq(4)1554 1811 y FC(are)120 1867 y(set)14 b(b)o(y)g(calling)h |
| Fz(T)l(exGen)e FC(with)i Fv(pname)e FC(set)h(to)f Fr(EYE)p |
| 1024 1867 V 15 w(PLANE)g FC(in)h(corresp)q(ondence)h(with)120 |
| 1924 y(setting)d(the)f(co)q(e\016cien)o(ts)h(in)h(the)e |
| Fr(OBJECT)p 825 1924 V 14 w(PLANE)g FC(case.)18 b Fy(M)f |
| FC(is)12 b(the)f(mo)q(del-view)i(matrix)120 1980 y(in)18 |
| b(e\013ect)f(when)g Fy(p)440 1987 y Fq(1)460 1980 y Fy(;)8 |
| b(:)g(:)g(:)d(;)j(p)585 1987 y Fq(4)620 1980 y FC(are)17 |
| b(sp)q(eci\014ed.)27 b(Computed)17 b(texture)g(co)q(ordinates)g(ma)o(y) |
| 120 2037 y(b)q(e)f(inaccurate)g(or)f(unde\014ned)i(if)e |
| Fy(M)21 b FC(is)15 b(p)q(o)q(orly)h(conditioned)h(or)e(singular.)191 |
| 2093 y(When)h(used)g(with)g(a)f(suitably)i(constructed)f(texture)f |
| (image,)h(calling)h Fz(T)l(exGen)120 2149 y FC(with)g |
| Fr(TEXTURE)p 382 2149 V 14 w(GEN)p 462 2149 V 15 w(MODE)f |
| FC(indicating)i Fr(SPHERE)p 926 2149 V 15 w(MAP)e FC(can)g(sim)o(ulate) |
| h(the)g(re\015ected)g(im-)120 2206 y(age)12 b(of)g(a)f(spherical)j(en)o |
| (vironmen)o(t)f(on)f(a)f(p)q(olygon.)20 b Fr(SPHERE)p |
| 1145 2206 V 14 w(MAP)12 b FC(texture)f(co)q(ordinates)120 |
| 2262 y(are)j(generated)g(as)g(follo)o(ws.)20 b(Denote)13 |
| b(the)i(unit)f(v)o(ector)g(p)q(oin)o(ting)h(from)e(the)i(origin)f(to) |
| 120 2319 y(the)e(v)o(ertex)g(\(in)g(ey)o(e)g(co)q(ordinates\))g(b)o(y)f |
| Fz(u)p FC(.)19 b(Denote)12 b(the)f(curren)o(t)h(normal,)g(after)f |
| (trans-)120 2375 y(formation)16 b(to)g(ey)o(e)g(co)q(ordinates,)h(b)o |
| (y)f Fz(n)815 2359 y FG(0)827 2375 y FC(.)23 b(Let)16 |
| b Fz(r)e FC(=)h(\()7 b Fy(r)1077 2382 y Fu(x)1144 2375 |
| y Fy(r)1165 2382 y Fu(y)1231 2375 y Fy(r)1252 2382 y |
| Fu(z)1279 2375 y FC(\))1297 2354 y Fu(T)1324 2375 y FC(,)16 |
| b(the)h(re\015ection)120 2432 y(v)o(ector,)d(b)q(e)i(giv)o(en)g(b)o(y) |
| 698 2488 y Fz(r)c FC(=)h Fz(u)d FB(\000)g FC(2)p Fz(n)916 |
| 2469 y FG(0)928 2488 y Fz(n)957 2469 y FG(0)q Fu(T)996 |
| 2488 y Fz(u)p Fy(;)p eop |
| %%Page: 36 45 |
| 36 44 bop 332 137 a FC(36)643 b Fx(CHAPTER)16 b(2.)34 |
| b(OPENGL)16 b(OPERA)l(TION)332 294 y FC(and)h(let)g Fy(m)f |
| FC(=)f(2)618 244 y Fi(q)p 659 244 369 2 v 659 294 a Fy(r)681 |
| 281 y Fq(2)680 305 y Fu(x)712 294 y FC(+)10 b Fy(r)779 |
| 281 y Fq(2)778 305 y Fu(y)809 294 y FC(+)h(\()p Fy(r)894 |
| 301 y Fu(z)923 294 y FC(+)f(1\))1009 273 y Fq(2)1028 |
| 294 y FC(.)25 b(Then)17 b(the)g(v)m(alue)h(assigned)g(to)e(an)h |
| Fy(s)g FC(co)q(or-)332 361 y(dinate)h(\(the)e(\014rst)h |
| Fz(T)l(exGen)f FC(argumen)o(t)g(v)m(alue)j(is)e Fr(S)p |
| FC(\))f(is)i Fy(s)e FC(=)f Fy(r)1444 368 y Fu(x)1466 |
| 361 y Fy(=m)c FC(+)1591 343 y Fq(1)p 1591 350 18 2 v |
| 1591 376 a(2)1614 361 y FC(;)17 b(the)g(v)m(alue)332 |
| 417 y(assigned)j(to)f(a)g Fy(t)h FC(co)q(ordinate)g(is)g |
| Fy(t)g FC(=)g Fy(r)1044 424 y Fu(y)1064 417 y Fy(=m)12 |
| b FC(+)1193 399 y Fq(1)p 1193 406 V 1193 433 a(2)1215 |
| 417 y FC(.)33 b(Calling)21 b Fz(T)l(exGen)e FC(with)g(a)g |
| Fv(c)n(o-)332 474 y(or)n(d)h FC(of)f(either)h Fr(R)f |
| FC(or)g Fr(Q)g FC(when)h Fv(pname)f FC(indicates)i Fr(SPHERE)p |
| 1347 474 14 2 v 15 w(MAP)e FC(generates)g(the)g(error)332 |
| 530 y Fr(INVALID)p 489 530 V 14 w(ENUM)p FC(.)403 590 |
| y(A)h(texture)g(co)q(ordinate)g(generation)g(function)h(is)g(enabled)g |
| (or)f(disabled)i(using)332 646 y Fz(Enable)g FC(and)g |
| Fz(Disable)g FC(with)f(an)g(argumen)o(t)f(of)h Fr(TEXTURE)p |
| 1395 646 V 14 w(GEN)p 1475 646 V 15 w(S)p FC(,)g Fr(TEXTURE)p |
| 1700 646 V 14 w(GEN)p 1780 646 V 15 w(T)p FC(,)332 703 |
| y Fr(TEXTURE)p 489 703 V 14 w(GEN)p 569 703 V 15 w(R)p |
| FC(,)e(or)g Fr(TEXTURE)p 852 703 V 15 w(GEN)p 933 703 |
| V 15 w(Q)g FC(\(eac)o(h)g(indicates)i(the)f(corresp)q(onding)h(texture) |
| 332 759 y(co)q(ordinate\).)32 b(When)19 b(enabled,)j(the)d(sp)q |
| (eci\014ed)i(texture)e(co)q(ordinate)g(is)h(computed)332 |
| 816 y(according)c(to)f(the)g(curren)o(t)h Fr(EYE)p 899 |
| 816 V 15 w(LINEAR)p FC(,)e Fr(OBJECT)p 1205 816 V 14 |
| w(LINEAR)g FC(or)h Fr(SPHERE)p 1553 816 V 15 w(MAP)g |
| FC(sp)q(eci\014ca-)332 872 y(tion,)i(dep)q(ending)h(on)f(the)f(curren)o |
| (t)g(setting)h(of)f Fr(TEXTURE)p 1323 872 V 14 w(GEN)p |
| 1403 872 V 15 w(MODE)f FC(for)h(that)g(co)q(ordi-)332 |
| 928 y(nate.)34 b(When)20 b(disabled,)j(subsequen)o(t)e(v)o(ertices)f |
| (will)i(tak)o(e)d(the)h(indicated)i(texture)332 985 y(co)q(ordinate)16 |
| b(from)e(the)h(curren)o(t)h(texture)e(co)q(ordinates.)403 |
| 1045 y(The)i(state)f(required)i(for)e(texture)g(co)q(ordinate)h |
| (generation)g(comprises)h(a)e(three-)332 1101 y(v)m(alued)20 |
| b(in)o(teger)f(for)f(eac)o(h)h(co)q(ordinate)g(indicating)i(co)q |
| (ordinate)e(generation)g(mo)q(de,)332 1158 y(and)13 b(a)g(bit)g(for)f |
| (eac)o(h)h(co)q(ordinate)h(to)e(indicate)i(whether)f(texture)g(co)q |
| (ordinate)g(genera-)332 1214 y(tion)h(is)f(enabled)i(or)e(disabled.)21 |
| b(In)13 b(addition,)i(four)e(co)q(e\016cien)o(ts)h(are)e(required)j |
| (for)d(the)332 1271 y(four)i(co)q(ordinates)h(for)f(eac)o(h)h(of)f |
| Fr(EYE)p 958 1271 V 15 w(LINEAR)f FC(and)i Fr(OBJECT)p |
| 1338 1271 V 14 w(LINEAR)p FC(.)e(The)i(initial)h(state)332 |
| 1327 y(has)c(the)g(texture)g(generation)h(function)g(disabled)g(for)f |
| (all)h(texture)f(co)q(ordinates.)19 b(The)332 1383 y(initial)f(v)m |
| (alues)f(of)f Fy(p)676 1390 y Fu(i)705 1383 y FC(for)g |
| Fy(s)g FC(are)f(all)i(0)f(except)g Fy(p)1158 1390 y Fq(1)1194 |
| 1383 y FC(whic)o(h)g(is)h(one;)f(for)f Fy(t)h FC(all)h(the)f |
| Fy(p)1736 1390 y Fu(i)1766 1383 y FC(are)332 1440 y(zero)c(except)g |
| Fy(p)587 1447 y Fq(2)607 1440 y FC(,)g(whic)o(h)g(is)g(1.)19 |
| b(The)12 b(v)m(alues)h(of)e Fy(p)1148 1447 y Fu(i)1174 |
| 1440 y FC(for)g Fy(r)h FC(and)g Fy(q)i FC(are)d(all)i(0.)18 |
| b(These)12 b(v)m(alues)332 1496 y(of)i Fy(p)406 1503 |
| y Fu(i)435 1496 y FC(apply)h(for)f(b)q(oth)g(the)h Fr(EYE)p |
| 881 1496 V 15 w(LINEAR)e FC(and)i Fr(OBJECT)p 1261 1496 |
| V 14 w(LINEAR)f FC(v)o(ersions.)19 b(Initially)f(all)332 |
| 1553 y(texture)d(generation)g(mo)q(des)h(are)f Fr(EYE)p |
| 998 1553 V 15 w(LINEAR)p FC(.)332 1715 y Fs(2.11)66 b(Clipping)332 |
| 1823 y FC(Primitiv)o(es)23 b(are)f(clipp)q(ed)j(to)c(the)h |
| Fv(clip)g(volume)p FC(.)41 b(In)23 b(clip)h(co)q(ordinates,)f(the)g |
| Fv(view)332 1879 y(volume)15 b FC(is)h(de\014ned)h(b)o(y)923 |
| 1942 y FB(\000)p Fy(w)991 1949 y Fu(c)1021 1942 y FB(\024)c |
| Fy(x)1095 1949 y Fu(c)1125 1942 y FB(\024)g Fy(w)1206 |
| 1949 y Fu(c)925 1998 y FB(\000)p Fy(w)993 2005 y Fu(c)1023 |
| 1998 y FB(\024)g Fy(y)1093 2005 y Fu(c)1123 1998 y FB(\024)g |
| Fy(w)1204 2005 y Fu(c)926 2055 y FB(\000)p Fy(w)994 2062 |
| y Fu(c)1023 2055 y FB(\024)g Fy(z)1092 2062 y Fu(c)1123 |
| 2055 y FB(\024)g Fy(w)1204 2062 y Fu(c)1244 1998 y Fy(:)332 |
| 2146 y FC(This)k(view)f(v)o(olume)g(ma)o(y)g(b)q(e)g(further)g |
| (restricted)g(b)o(y)g(as)f(man)o(y)h(as)f Fy(n)i FC(clien)o |
| (t-de\014ned)332 2203 y(clip)g(planes)e(to)f(generate)h(the)g(clip)h(v) |
| o(olume.)k(\()p Fy(n)15 b FC(is)g(an)g(implemen)o(tation)h(dep)q(enden) |
| o(t)332 2259 y(maxim)o(um)k(that)f(m)o(ust)h(b)q(e)g(at)g(least)g(6.\)) |
| 33 b(Eac)o(h)20 b(clien)o(t-de\014ned)j(plane)e(sp)q(eci\014es)h(a)332 |
| 2315 y(half-space.)27 b(The)18 b(clip)g(v)o(olume)g(is)g(the)f(in)o |
| (tersection)h(of)f(all)h(suc)o(h)g(half-spaces)g(with)332 |
| 2372 y(the)e(view)g(v)o(olume)h(\(if)f(there)g(no)f(clien)o |
| (t-de\014ned)k(clip)e(planes)g(are)f(enabled,)h(the)f(clip)332 |
| 2428 y(v)o(olume)g(is)f(the)h(view)f(v)o(olume\).)403 |
| 2488 y(A)g(clien)o(t-de\014ned)j(clip)f(plane)f(is)g(sp)q(eci\014ed)h |
| (with)p eop |
| %%Page: 37 46 |
| 37 45 bop 120 137 a Fx(2.11.)34 b(CLIPPING)1095 b FC(37)234 |
| 286 y Fw(void)30 b Fz(ClipPlane)p FC(\()h Fw(enum)15 |
| b Fv(p)p Fw(,)g(double)f Fv(e)n(qn[4])h FC(\))g Fw(;)120 |
| 386 y FC(The)d(v)m(alue)g(of)f(the)g(\014rst)g(argumen)o(t,)g |
| Fv(p)p FC(,)g(is)h(a)f(sym)o(b)q(olic)h(constan)o(t,)f |
| Fr(CLIP)p 1339 386 14 2 v 15 w(PLANE)p Fh(i)p FC(,)f(where)120 |
| 443 y Fy(i)17 b FC(is)h(an)f(in)o(teger)h(b)q(et)o(w)o(een)f(0)g(and)h |
| Fy(n)11 b FB(\000)h FC(1,)17 b(indicating)i(one)f(of)f |
| Fy(n)g FC(clien)o(t-de\014ned)j(clip)120 499 y(planes.)h |
| Fv(e)n(qn)14 b FC(is)h(an)f(arra)o(y)f(of)i(four)f(double-precision)j |
| (\015oating-p)q(oin)o(t)f(v)m(alues.)k(These)120 556 |
| y(are)14 b(the)f(co)q(e\016cien)o(ts)h(of)f(a)h(plane)g(equation)g(in)g |
| (ob)s(ject)f(co)q(ordinates:)20 b Fy(p)1358 563 y Fq(1)1377 |
| 556 y FC(,)14 b Fy(p)1427 563 y Fq(2)1446 556 y FC(,)g |
| Fy(p)1496 563 y Fq(3)1515 556 y FC(,)g(and)120 612 y |
| Fy(p)143 619 y Fq(4)178 612 y FC(\(in)i(that)f(order\).)20 |
| b(The)c(in)o(v)o(erse)g(of)f(the)g(curren)o(t)h(mo)q(del-view)h(matrix) |
| e(is)h(applied)120 668 y(to)f(these)g(co)q(e\016cien)o(ts,)h(at)f(the)g |
| (time)g(they)h(are)f(sp)q(eci\014ed,)i(yielding)428 775 |
| y(\()7 b Fy(p)476 759 y FG(0)476 787 y Fq(1)541 775 y |
| Fy(p)564 759 y FG(0)564 787 y Fq(2)630 775 y Fy(p)653 |
| 759 y FG(0)653 787 y Fq(3)718 775 y Fy(p)741 759 y FG(0)741 |
| 787 y Fq(4)768 775 y FC(\))12 b(=)h(\()7 b Fy(p)894 782 |
| y Fq(1)959 775 y Fy(p)982 782 y Fq(2)1047 775 y Fy(p)1070 |
| 782 y Fq(3)1135 775 y Fy(p)1158 782 y Fq(4)1186 775 y |
| FC(\))g Fy(M)1260 756 y FG(\000)p Fq(1)120 882 y FC(\(where)15 |
| b Fy(M)20 b FC(is)15 b(the)g(curren)o(t)g(mo)q(del-view)h(matrix;)e |
| (the)h(resulting)h(plane)g(equation)f(is)120 938 y(unde\014ned)f(if)d |
| Fy(M)17 b FC(is)11 b(singular)i(and)e(ma)o(y)g(b)q(e)h(inaccurate)g(if) |
| f Fy(M)17 b FC(is)11 b(p)q(o)q(orly-conditioned\))120 |
| 995 y(to)j(obtain)h(the)f(plane)i(equation)f(co)q(e\016cien)o(ts)g(in)g |
| (ey)o(e)g(co)q(ordinates.)20 b(All)c(p)q(oin)o(ts)e(with)120 |
| 1051 y(ey)o(e)i(co)q(ordinates)f(\()7 b Fy(x)491 1058 |
| y Fu(e)555 1051 y Fy(y)577 1058 y Fu(e)642 1051 y Fy(z)663 |
| 1058 y Fu(e)727 1051 y Fy(w)760 1058 y Fu(e)785 1051 |
| y FC(\))803 1030 y Fu(T)845 1051 y FC(that)15 b(satisfy)574 |
| 1235 y(\()7 b Fy(p)622 1219 y FG(0)622 1247 y Fq(1)687 |
| 1235 y Fy(p)710 1219 y FG(0)710 1247 y Fq(2)775 1235 |
| y Fy(p)798 1219 y FG(0)798 1247 y Fq(3)864 1235 y Fy(p)887 |
| 1219 y FG(0)887 1247 y Fq(4)914 1235 y FC(\))939 1126 |
| y Fi(0)939 1199 y(B)939 1224 y(B)939 1251 y(@)986 1151 |
| y Fy(x)1012 1158 y Fu(e)988 1207 y Fy(y)1010 1214 y Fu(e)989 |
| 1264 y Fy(z)1010 1271 y Fu(e)983 1320 y Fy(w)1016 1327 |
| y Fu(e)1041 1126 y Fi(1)1041 1199 y(C)1041 1224 y(C)1041 |
| 1251 y(A)1090 1235 y FB(\025)13 b FC(0)120 1417 y(lie)22 |
| b(in)f(the)f(half-space)h(de\014ned)g(b)o(y)f(the)g(plane;)j(p)q(oin)o |
| (ts)e(that)e(do)h(not)g(satisfy)f(this)120 1474 y(condition)e(do)e(not) |
| g(lie)h(in)g(the)g(half-space.)191 1532 y(Clien)o(t-de\014ned)24 |
| b(clip)g(planes)f(are)f(enabled)h(with)g(the)f(generic)h |
| Fz(Enable)g FC(com-)120 1588 y(mand)14 b(and)g(disabled)h(with)f(the)g |
| Fz(Disable)h FC(command.)k(The)14 b(v)m(alue)h(of)e(the)h(argumen)o(t) |
| 120 1645 y(to)19 b(either)h(command)f(is)h Fr(CLIP)p |
| 665 1645 V 15 w(PLANE)p Fh(i)e FC(where)i Fy(i)f FC(is)g(an)g(in)o |
| (teger)h(b)q(et)o(w)o(een)f(0)g(and)h Fy(n)p FC(;)120 |
| 1701 y(sp)q(ecifying)f(a)e(v)m(alue)h(of)e Fy(i)h FC(enables)h(or)e |
| (disables)i(the)f(plane)h(equation)f(with)g(index)h Fy(i)p |
| FC(.)120 1758 y(The)e(constan)o(ts)e(ob)q(ey)i Fr(CLIP)p |
| 615 1758 V 15 w(PLANE)p Fh(i)11 b FC(=)i Fr(CLIP)p 901 |
| 1758 V 15 w(PLANE0)c FC(+)i Fy(i)p FC(.)191 1816 y(If)19 |
| b(the)g(primitiv)o(e)h(under)g(consideration)f(is)h(a)e(p)q(oin)o(t,)i |
| (then)f(clipping)j(passes)c(it)120 1872 y(unc)o(hanged)e(if)f(it)g |
| (lies)h(within)g(the)e(clip)j(v)o(olume;)d(otherwise,)h(it)g(is)g |
| (discarded.)21 b(If)15 b(the)120 1928 y(primitiv)o(e)h(is)e(a)g(line)h |
| (segmen)o(t,)e(then)i(clipping)h(do)q(es)e(nothing)h(to)e(it)h(if)g(it) |
| g(lies)i(en)o(tirely)120 1985 y(within)h(the)f(clip)h(v)o(olume)f(and)g |
| (discards)g(it)g(if)g(it)f(lies)i(en)o(tirely)g(outside)f(the)g(v)o |
| (olume.)120 2041 y(If)f(part)f(of)g(the)h(line)h(segmen)o(t)e(lies)i |
| (in)g(the)e(v)o(olume)h(and)g(part)f(lies)i(outside,)f(then)g(the)120 |
| 2098 y(line)h(segmen)o(t)e(is)h(clipp)q(ed)i(and)d(new)h(v)o(ertex)f |
| (co)q(ordinates)g(are)g(computed)h(for)f(one)g(or)120 |
| 2154 y(b)q(oth)g(v)o(ertices.)20 b(A)14 b(clipp)q(ed)i(line)g(segmen)o |
| (t)d(endp)q(oin)o(t)i(lies)h(on)d(b)q(oth)h(the)g(original)h(line)120 |
| 2211 y(segmen)o(t)g(and)h(the)f(b)q(oundary)g(of)g(the)h(clip)g(v)o |
| (olume.)191 2269 y(This)e(clipping)i(pro)q(duces)f(a)e(v)m(alue,)i(0)d |
| FB(\024)h Fy(t)g FB(\024)g FC(1,)h(for)f(eac)o(h)h(clipp)q(ed)i(v)o |
| (ertex.)j(If)14 b(the)120 2325 y(co)q(ordinates)j(of)e(a)g(clipp)q(ed)k |
| (v)o(ertex)c(are)h Fz(P)f FC(and)h(the)g(original)h(v)o(ertices')e(co)q |
| (ordinates)120 2382 y(are)g Fz(P)232 2389 y Fq(1)267 |
| 2382 y FC(and)g Fz(P)391 2389 y Fq(2)411 2382 y FC(,)f(then)i |
| Fy(t)g FC(is)f(giv)o(en)h(b)o(y)657 2488 y Fz(P)c FC(=)h |
| Fy(t)p Fz(P)805 2495 y Fq(1)835 2488 y FC(+)d(\(1)g FB(\000)g |
| Fy(t)p FC(\))p Fz(P)1046 2495 y Fq(2)1066 2488 y Fy(:)p |
| eop |
| %%Page: 38 47 |
| 38 46 bop 332 137 a FC(38)643 b Fx(CHAPTER)16 b(2.)34 |
| b(OPENGL)16 b(OPERA)l(TION)332 286 y FC(The)28 b(v)m(alue)i(of)d |
| Fy(t)h FC(is)h(used)g(in)f(color)g(and)h(texture)e(co)q(ordinate)i |
| (clipping)h(\(sec-)332 343 y(tion)16 b(2.13.8\).)403 |
| 402 y(If)h(the)h(primitiv)o(e)g(is)g(a)f(p)q(olygon,)h(then)g(it)f(is)h |
| (passed)f(if)h(ev)o(ery)f(one)h(of)f(its)g(edges)332 |
| 459 y(lies)d(en)o(tirely)f(inside)h(the)f(clip)h(v)o(olume)f(and)f |
| (either)h(clipp)q(ed)i(or)d(discarded)i(otherwise.)332 |
| 515 y(P)o(olygon)g(clipping)k(ma)o(y)c(cause)h(p)q(olygon)g(edges)g(to) |
| f(b)q(e)h(clipp)q(ed,)i(but)e(b)q(ecause)g(p)q(oly-)332 |
| 572 y(gon)g(connectivit)o(y)h(m)o(ust)e(b)q(e)i(main)o(tained,)f(these) |
| g(clipp)q(ed)j(edges)d(are)g(connected)h(b)o(y)332 628 |
| y(new)j(edges)g(that)f(lie)i(along)f(the)g(clip)h(v)o(olume's)f(b)q |
| (oundary)l(.)31 b(Th)o(us,)19 b(clipping)i(ma)o(y)332 |
| 685 y(require)15 b(the)e(in)o(tro)q(duction)i(of)e(new)h(v)o(ertices)h |
| (in)o(to)e(a)h(p)q(olygon.)20 b(Edge)13 b(\015ags)h(are)f(asso-)332 |
| 741 y(ciated)18 b(with)g(these)f(v)o(ertices)h(so)f(that)f(edges)i(in)o |
| (tro)q(duced)h(b)o(y)e(clipping)j(are)d(\015agged)332 |
| 797 y(as)c(b)q(oundary)i(\(edge)e(\015ag)h Fr(TRUE)p |
| FC(\),)e(and)i(so)f(that)g(original)i(edges)f(of)f(the)h(p)q(olygon)g |
| (that)332 854 y(b)q(ecome)i(cut)f(o\013)g(at)f(these)i(v)o(ertices)f |
| (retain)h(their)f(original)i(\015ags.)403 913 y(If)23 |
| b(it)g(happ)q(ens)h(that)e(a)g(p)q(olygon)h(in)o(tersects)g(an)g(edge)g |
| (of)f(the)h(clip)i(v)o(olume's)332 970 y(b)q(oundary)l(,)16 |
| b(then)g(the)f(clipp)q(ed)j(p)q(olygon)e(m)o(ust)f(include)j(a)d(p)q |
| (oin)o(t)h(on)f(this)h(b)q(oundary)332 1026 y(edge.)40 |
| b(This)22 b(p)q(oin)o(t)g(m)o(ust)f(lie)i(in)g(the)f(in)o(tersection)g |
| (of)f(the)h(b)q(oundary)g(edge)g(and)332 1083 y(the)g(con)o(v)o(ex)g(h) |
| o(ull)h(of)f(the)g(v)o(ertices)g(of)g(the)g(original)h(p)q(olygon.)40 |
| b(W)l(e)22 b(imp)q(ose)h(this)332 1139 y(requiremen)o(t)16 |
| b(b)q(ecause)g(the)f(p)q(olygon)h(ma)o(y)f(not)f(b)q(e)i(exactly)g |
| (planar.)403 1199 y(A)11 b(line)i(segmen)o(t)e(or)g(p)q(olygon)h(whose) |
| g(v)o(ertices)f(ha)o(v)o(e)h Fy(w)1348 1206 y Fu(c)1376 |
| 1199 y FC(v)m(alues)h(of)e(di\013ering)h(signs)332 1255 |
| y(ma)o(y)h(generate)h(m)o(ultiple)i(connected)e(comp)q(onen)o(ts)g |
| (after)g(clipping.)21 b(GL)14 b(implemen-)332 1312 y(tations)e(are)g |
| (not)f(required)i(to)f(handle)h(this)g(situation.)19 |
| b(That)12 b(is,)h(only)f(the)g(p)q(ortion)h(of)332 1368 |
| y(the)h(primitiv)o(e)h(that)d(lies)j(in)g(the)e(region)h(of)f |
| Fy(w)1121 1375 y Fu(c)1150 1368 y Fy(>)g FC(0)h(need)g(b)q(e)g(pro)q |
| (duced)h(b)o(y)e(clipping.)403 1427 y(Primitiv)o(es)h(rendered)h(with)e |
| (clip)i(planes)g(m)o(ust)e(satisfy)g(a)g(complemen)o(tarit)o(y)h(cri-) |
| 332 1484 y(terion.)20 b(Supp)q(ose)c(a)e(single)i(clip)g(plane)f(with)g |
| (co)q(e\016cien)o(ts)g(\()8 b Fy(p)1408 1467 y FG(0)1408 |
| 1495 y Fq(1)1473 1484 y Fy(p)1496 1467 y FG(0)1496 1495 |
| y Fq(2)1561 1484 y Fy(p)1584 1467 y FG(0)1584 1495 y |
| Fq(3)1649 1484 y Fy(p)1672 1467 y FG(0)1672 1495 y Fq(4)1699 |
| 1484 y FC(\))14 b(\(or)g(a)332 1540 y(n)o(um)o(b)q(er)e(of)f(similarly) |
| i(sp)q(eci\014ed)h(clip)f(planes\))f(is)g(enabled)h(and)f(a)f(series)h |
| (of)f(primitiv)o(es)332 1597 y(are)j(dra)o(wn.)19 b(Next,)c(supp)q(ose) |
| g(that)e(the)i(original)h(clip)g(plane)f(is)g(resp)q(eci\014ed)i(with)d |
| (co-)332 1653 y(e\016cien)o(ts)k(\()7 b FB(\000)p Fy(p)603 |
| 1637 y FG(0)603 1665 y Fq(1)669 1653 y FB(\000)p Fy(p)727 |
| 1637 y FG(0)727 1665 y Fq(2)792 1653 y FB(\000)p Fy(p)850 |
| 1637 y FG(0)850 1665 y Fq(3)916 1653 y FB(\000)p Fy(p)974 |
| 1637 y FG(0)974 1665 y Fq(4)1001 1653 y FC(\))17 b(\(and)g(corresp)q |
| (ondingly)i(for)e(an)o(y)g(other)g(clip)332 1710 y(planes\))f(and)f |
| (the)g(primitiv)o(es)h(are)e(dra)o(wn)h(again)g(\(and)f(the)h(GL)g(is)h |
| (otherwise)f(in)g(the)332 1766 y(same)k(state\).)31 b(In)19 |
| b(this)h(case,)g(primitiv)o(es)g(m)o(ust)f(not)g(b)q(e)g(missing)i(an)o |
| (y)d(pixels,)k(nor)332 1823 y(ma)o(y)14 b(an)o(y)g(pixels)j(b)q(e)e |
| (dra)o(wn)f(t)o(wice)h(in)g(regions)g(where)g(those)g(primitiv)o(es)g |
| (are)g(cut)g(b)o(y)332 1879 y(the)g(clip)i(planes.)403 |
| 1938 y(Clipping)j(requires)g(at)e(least)g(6)g(sets)h(of)f(plane)h |
| (equations)g(\(eac)o(h)f(consisting)i(of)332 1995 y(four)11 |
| b(double-precision)j(\015oating-p)q(oin)o(t)e(co)q(e\016cien)o(ts\))g |
| (and)f(at)f(least)i(6)e(corresp)q(onding)332 2051 y(bits)15 |
| b(indicating)h(whic)o(h)f(of)e(these)i(clien)o(t-de\014ned)i(plane)e |
| (equations)f(are)g(enabled.)21 b(In)332 2108 y(the)e(initial)i(state,)d |
| (all)i(clien)o(t-de\014ned)i(plane)d(equation)h(co)q(e\016cien)o(ts)f |
| (are)g(zero)f(and)332 2164 y(all)e(planes)g(are)f(disabled.)332 |
| 2324 y Fs(2.12)66 b(Curren)n(t)23 b(Raster)g(P)n(osition)332 |
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| FC(1\))p 1395 482 V 762 483 634 2 v 761 540 2 57 v 787 |
| 523 a(short)p 993 540 V 130 w(\(2)p Fy(c)e FC(+)h(1\))p |
| Fy(=)p FC(\(2)1239 506 y Fq(16)1285 523 y FB(\000)h FC(1\))p |
| 1395 540 V 762 541 634 2 v 761 598 2 57 v 787 581 a(uin)o(t)p |
| 993 598 V 221 w Fy(c=)p FC(\(2)1171 564 y Fq(32)1217 |
| 581 y FB(\000)g FC(1\))p 1395 598 V 762 599 634 2 v 761 |
| 656 2 57 v 787 639 a(in)o(t)p 993 656 V 178 w(\(2)p Fy(c)e |
| FC(+)h(1\))p Fy(=)p FC(\(2)1239 622 y Fq(32)1285 639 |
| y FB(\000)h FC(1\))p 1395 656 V 762 658 634 2 v 761 714 |
| 2 57 v 787 697 a(\015oat)p 993 714 V 309 w Fy(c)p 1395 |
| 714 V 762 716 634 2 v 761 772 2 57 v 787 755 a FC(double)p |
| 993 772 V 268 w Fy(c)p 1395 772 V 762 774 634 2 v 762 |
| 782 V 332 859 a FC(T)l(able)17 b(2.6:)j(Comp)q(onen)o(t)c(con)o(v)o |
| (ersions.)22 b(Color,)15 b(normal,)h(and)g(depth)h(comp)q(onen)o(ts,) |
| 332 916 y(\()p Fy(c)p FC(\),)12 b(are)h(con)o(v)o(erted)f(to)g(an)h(in) |
| o(ternal)h(\015oating-p)q(oin)o(t)f(represen)o(tation,)g(\()p |
| Fy(f)5 b FC(\),)13 b(using)g(the)332 972 y(equations)j(in)g(this)g |
| (table.)21 b(All)16 b(arithmetic)g(is)g(done)g(in)g(the)f(in)o(ternal)i |
| (\015oating)e(p)q(oin)o(t)332 1029 y(format.)22 b(These)17 |
| b(con)o(v)o(ersions)f(apply)h(to)f(comp)q(onen)o(ts)g(sp)q(eci\014ed)j |
| (as)d(parameters)f(to)332 1085 y(GL)g(commands)g(and)h(to)e(comp)q |
| (onen)o(ts)i(in)g(pixel)g(data.)k(The)15 b(equations)h(remain)f(the)332 |
| 1142 y(same)f(ev)o(en)h(if)g(the)g(implemen)o(ted)h(ranges)f(of)f(the)g |
| (GL)h(data)f(t)o(yp)q(es)h(are)f(greater)g(than)332 1198 |
| y(the)h(minim)o(um)i(required)f(ranges.)j(\(Refer)d(to)e(table)i(2.2\)) |
| 332 1408 y Fl(2.13.1)55 b(Ligh)n(ting)332 1513 y FC(GL)14 |
| b(ligh)o(ting)h(computes)f(a)f(color)h(for)f(eac)o(h)h(v)o(ertex)f(sen) |
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| (applying)i(an)f(equation)g(de\014ned)h(b)o(y)e(a)h(clien)o(t-sp)q |
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| (of)f(parameters)e(that)i(can)f(include)k(the)c(v)o(ertex)h(co)q |
| (ordinates,)g(the)332 1682 y(co)q(ordinates)12 b(of)f(one)h(or)f(more)g |
| (ligh)o(t)h(sources,)g(the)g(curren)o(t)g(normal,)f(and)h(parameters) |
| 332 1739 y(de\014ning)k(the)f(c)o(haracteristics)g(of)f(the)h(ligh)o(t) |
| h(sources)e(and)h(a)g(curren)o(t)f(material.)20 b(The)332 |
| 1795 y(follo)o(wing)e(discussion)g(assumes)f(that)f(the)h(GL)g(is)g(in) |
| h(R)o(GBA)f(mo)q(de.)25 b(\(Color)16 b(index)332 1852 |
| y(ligh)o(ting)g(is)g(describ)q(ed)h(in)f(section)g(2.13.5.\))403 |
| 1918 y(Ligh)o(ting)g(ma)o(y)e(b)q(e)i(in)g(one)g(of)e(t)o(w)o(o)g |
| (states:)388 2052 y(1.)22 b(Ligh)o(ting)14 b(O\013.)20 |
| b(In)14 b(this)g(state)f(the)g(color)h(assigned)g(to)f(a)h(v)o(ertex)f |
| (is)h(the)g(curren)o(t)446 2108 y(color.)388 2242 y(2.)22 |
| b(Ligh)o(ting)c(On.)28 b(In)19 b(this)f(state,)f(a)g(v)o(ertex's)g |
| (color)h(is)g(found)g(b)o(y)g(computing)g(a)446 2298 |
| y(v)m(alue)e(giv)o(en)g(the)f(curren)o(t)g(ligh)o(ting)i(parameters.) |
| 332 2432 y(Ligh)o(ting)k(is)g(turned)g(either)g(on)f(or)g(o\013)g |
| (using)h(the)f(generic)i Fz(Enable)f FC(or)f Fz(Disable)332 |
| 2488 y FC(commands)15 b(with)h(the)f(sym)o(b)q(olic)h(v)m(alue)h |
| Fr(LIGHTING)p FC(.)p eop |
| %%Page: 43 52 |
| 43 51 bop 120 137 a Fx(2.13.)34 b(COLORS)17 b(AND)e(COLORING)746 |
| b FC(43)120 286 y Fz(Ligh)o(ting)20 b(Op)q(eration)120 |
| 382 y FC(A)c(ligh)o(ting)i(parameter)d(is)h(of)g(one)g(of)f(\014v)o(e)i |
| (t)o(yp)q(es:)k(color,)16 b(p)q(osition,)h(direction,)g(real,)120 |
| 438 y(or)f(b)q(o)q(olean.)23 b(A)16 b(color)h(parameter)e(consists)h |
| (of)g(four)f(\015oating-p)q(oin)o(t)i(elemen)o(ts,)g(one)120 |
| 494 y(for)j(eac)o(h)h(of)g(R,)f(G,)g(B,)h(and)g(A,)f(in)i(that)e |
| (order.)36 b(There)21 b(are)f(no)h(restrictions)g(on)120 |
| 551 y(the)f(allo)o(w)o(able)h(v)m(alues)g(for)f(these)g(parameters.)33 |
| b(A)20 b(p)q(osition)h(parameter)f(consists)120 607 y(of)f(four)g |
| (\015oating-p)q(oin)o(t)g(co)q(ordinates)h(\()p Fy(x)p |
| FC(,)f Fy(y)r FC(,)h Fy(z)r FC(,)f(and)h Fy(w)q FC(\))e(that)h(sp)q |
| (ecify)h(a)f(p)q(osition)120 664 y(in)e(ob)s(ject)f(co)q(ordinates)h |
| (\()p Fy(w)g FC(ma)o(y)l(,)e(in)i(some)f(cases,)g(b)q(e)h(zero,)f |
| (indicating)j(a)d(p)q(oin)o(t)g(at)120 720 y(in\014nit)o(y)e(in)e(the)g |
| (direction)h(giv)o(en)f(b)o(y)g Fy(x)p FC(,)g Fy(y)r |
| FC(,)g(and)g Fy(z)r FC(\).)19 b(A)11 b(direction)i(parameter)f |
| (consists)120 777 y(of)17 b(three)g(\015oating-p)q(oin)o(t)g(co)q |
| (ordinates)g(\()p Fy(x)p FC(,)g Fy(y)r FC(,)f(and)h Fy(z)r |
| FC(\))g(that)f(sp)q(ecify)i(a)f(direction)h(in)120 833 |
| y(ob)s(ject)11 b(co)q(ordinates.)18 b(A)11 b(real)g(parameter)f(is)h |
| (one)g(\015oating-p)q(oin)o(t)h(v)m(alue.)19 b(The)11 |
| b(v)m(arious)120 890 y(v)m(alues)k(and)g(their)f(t)o(yp)q(es)g(are)f |
| (summarized)i(in)g(T)l(able)g(2.7.)j(The)c(result)g(of)g(a)g(ligh)o |
| (ting)120 946 y(computation)d(is)g(unde\014ned)h(if)f(a)g(v)m(alue)g |
| (for)f(a)h(parameter)e(is)i(sp)q(eci\014ed)i(that)d(is)h(outside)120 |
| 1003 y(the)16 b(range)f(giv)o(en)g(for)g(that)f(parameter)h(in)h(the)f |
| (table.)191 1064 y(There)d(are)g Fy(n)g FC(ligh)o(t)g(sources,)h |
| (indexed)g(b)o(y)f Fy(i)h FC(=)g(0)p Fy(;)8 b(:)g(:)g(:)t(;)g(n)t |
| FB(\000)t FC(1.)18 b(\()p Fy(n)11 b FC(is)i(an)f(implemen-)120 |
| 1120 y(tation)j(dep)q(enden)o(t)h(maxim)o(um)f(that)f(m)o(ust)h(b)q(e)g |
| (at)f(least)h(8.\))k(Note)c(that)f(the)h(default)120 |
| 1177 y(v)m(alues)i(for)d Fz(d)354 1184 y Fu(cli)410 1177 |
| y FC(and)h Fz(s)519 1184 y Fu(cli)574 1177 y FC(di\013er)h(for)e |
| Fy(i)f FC(=)g(0)i(and)g Fy(i)d(>)h FC(0.)191 1238 y(Before)19 |
| b(sp)q(ecifying)i(the)f(w)o(a)o(y)e(that)h(ligh)o(ting)h(computes)g |
| (colors,)g(w)o(e)f(in)o(tro)q(duce)120 1294 y(op)q(erators)h(and)h |
| (notation)f(that)g(simplify)i(the)f(expressions)g(in)o(v)o(olv)o(ed.)37 |
| b(If)21 b Fz(c)1501 1301 y Fq(1)1542 1294 y FC(and)120 |
| 1351 y Fz(c)143 1358 y Fq(2)185 1351 y FC(are)g(colors)g(without)g |
| (alpha)h(where)g Fz(c)868 1358 y Fq(1)911 1351 y FC(=)h(\()p |
| Fy(r)1008 1358 y Fq(1)1027 1351 y Fy(;)8 b(g)1070 1358 |
| y Fq(1)1088 1351 y Fy(;)g(b)1129 1358 y Fq(1)1148 1351 |
| y FC(\))21 b(and)g Fz(c)1304 1358 y Fq(2)1347 1351 y |
| FC(=)j(\()p Fy(r)1445 1358 y Fq(2)1463 1351 y Fy(;)8 |
| b(g)1506 1358 y Fq(2)1525 1351 y Fy(;)g(b)1566 1358 y |
| Fq(2)1584 1351 y FC(\),)120 1407 y(then)19 b(de\014ne)g |
| Fz(c)384 1414 y Fq(1)416 1407 y FB(\003)12 b Fz(c)474 |
| 1414 y Fq(2)511 1407 y FC(=)18 b(\()p Fy(r)603 1414 y |
| Fq(1)622 1407 y Fy(r)643 1414 y Fq(2)662 1407 y Fy(;)8 |
| b(g)705 1414 y Fq(1)724 1407 y Fy(g)746 1414 y Fq(2)765 |
| 1407 y Fy(;)g(b)806 1414 y Fq(1)825 1407 y Fy(b)845 1414 |
| y Fq(2)864 1407 y FC(\).)28 b(Addition)20 b(of)d(colors)h(is)h |
| (accomplished)120 1464 y(b)o(y)e(addition)h(of)f(the)g(comp)q(onen)o |
| (ts.)25 b(Multiplication)19 b(of)e(colors)f(b)o(y)h(a)g(scalar)g(means) |
| 120 1520 y(m)o(ultiplying)d(eac)o(h)e(comp)q(onen)o(t)g(b)o(y)g(that)f |
| (scalar.)19 b(If)12 b Fz(d)1059 1527 y Fq(1)1091 1520 |
| y FC(and)g Fz(d)1205 1527 y Fq(2)1236 1520 y FC(are)g(directions,)h |
| (then)120 1577 y(de\014ne)603 1648 y Fz(d)632 1655 y |
| Fq(1)662 1648 y FB(\014)d Fz(d)736 1655 y Fq(2)768 1648 |
| y FC(=)j(max)p FB(f)p Fz(d)953 1655 y Fq(1)983 1648 y |
| FB(\001)c Fz(d)1034 1655 y Fq(2)1054 1648 y Fy(;)f FC(0)p |
| FB(g)p Fy(:)120 1748 y FC(\(Directions)13 b(are)g(tak)o(en)f(to)g(ha)o |
| (v)o(e)g(three)h(co)q(ordinates.\))19 b(If)13 b Fz(P)1171 |
| 1755 y Fq(1)1203 1748 y FC(and)g Fz(P)1325 1755 y Fq(2)1357 |
| 1748 y FC(are)f(\(homoge-)120 1821 y(neous,)17 b(with)f(four)g(co)q |
| (ordinates\))g(p)q(oin)o(ts)g(then)g(let)1029 1790 y |
| FB(\000)-15 b(\000)-10 b(\000)-15 b(!)1029 1821 y Fz(P)1065 |
| 1828 y Fq(1)1084 1821 y Fz(P)1120 1828 y Fq(2)1156 1821 |
| y FC(b)q(e)16 b(the)g(unit)h(v)o(ector)e(that)120 1877 |
| y(p)q(oin)o(ts)h(from)f Fz(P)401 1884 y Fq(1)436 1877 |
| y FC(to)f Fz(P)527 1884 y Fq(2)547 1877 y FC(.)20 b(Note)15 |
| b(that)g(if)g Fz(P)866 1884 y Fq(2)901 1877 y FC(has)g(a)g(zero)h |
| Fy(w)g FC(co)q(ordinate)g(and)f Fz(P)1514 1884 y Fq(1)1549 |
| 1877 y FC(has)120 1948 y(non-zero)j Fy(w)h FC(co)q(ordinate,)f(then)704 |
| 1917 y FB(\000)-15 b(\000)-10 b(\000)c(!)704 1948 y Fz(P)740 |
| 1955 y Fq(1)760 1948 y Fz(P)796 1955 y Fq(2)833 1948 |
| y FC(is)18 b(the)g(unit)g(v)o(ector)f(corresp)q(onding)i(to)e(the)120 |
| 2004 y(direction)h(sp)q(eci\014ed)f(b)o(y)f(the)g Fy(x)p |
| FC(,)g Fy(y)r FC(,)f(and)h Fy(z)i FC(co)q(ordinates)e(of)g |
| Fz(P)1203 2011 y Fq(2)1222 2004 y FC(;)g(if)g Fz(P)1329 |
| 2011 y Fq(1)1364 2004 y FC(has)g(a)f(zero)h Fy(w)120 |
| 2074 y FC(co)q(ordinate)d(and)g Fz(P)463 2081 y Fq(2)495 |
| 2074 y FC(has)f(a)g(non-zero)h Fy(w)g FC(co)q(ordinate)g(then)1158 |
| 2043 y FB(\000)-15 b(\000)-9 b(\000)-15 b(!)1158 2074 |
| y Fz(P)1194 2081 y Fq(1)1214 2074 y Fz(P)1250 2081 y |
| Fq(2)1282 2074 y FC(is)13 b(the)f(unit)h(v)o(ector)120 |
| 2131 y(that)j(is)h(the)f(negativ)o(e)g(of)g(that)g(corresp)q(onding)h |
| (to)e(the)i(direction)g(sp)q(eci\014ed)i(b)o(y)d Fz(P)1583 |
| 2138 y Fq(1)1602 2131 y FC(.)120 2201 y(If)i(b)q(oth)g |
| Fz(P)314 2208 y Fq(1)352 2201 y FC(and)g Fz(P)479 2208 |
| y Fq(2)516 2201 y FC(ha)o(v)o(e)f(zero)h Fy(w)g FC(co)q(ordinates,)h |
| (then)1137 2170 y FB(\000)-15 b(\000)-10 b(\000)-15 b(!)1137 |
| 2201 y Fz(P)1173 2208 y Fq(1)1192 2201 y Fz(P)1228 2208 |
| y Fq(2)1266 2201 y FC(is)18 b(the)g(unit)g(v)o(ector)120 |
| 2258 y(obtained)e(b)o(y)f(normalizing)i(the)e(direction)i(corresp)q |
| (onding)f(to)f Fz(P)1270 2265 y Fq(2)1299 2258 y FB(\000)c |
| Fz(P)1381 2265 y Fq(1)1400 2258 y FC(.)191 2319 y(If)g |
| Fz(d)f FC(is)h(an)f(arbitrary)g(direction,)i(then)f(let)920 |
| 2307 y(^)917 2319 y Fz(d)f FC(b)q(e)h(the)g(unit)g(v)o(ector)f(in)h |
| Fz(d)p FC('s)f(direction.)120 2375 y(Let)k FB(k)p Fz(P)259 |
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| b(to)f(the)g(v)o(ertex)g(b)q(eing)h(lit,)g(and)f Fz(n)g |
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| y(Let)e Fz(P)238 2495 y Fu(e)271 2488 y FC(b)q(e)g(the)f(ey)o(ep)q(oin) |
| o(t)h(\(\(0)p Fy(;)8 b FC(0)p Fy(;)g FC(0)p Fy(;)f FC(1\))12 |
| b(in)k(ey)o(e)f(co)q(ordinates\).)p eop |
| %%Page: 44 53 |
| 44 52 bop 332 137 a FC(44)643 b Fx(CHAPTER)16 b(2.)34 |
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| 2 57 v 357 282 a FC(P)o(arameter)p 588 299 V 597 299 |
| V 93 w(T)o(yp)q(e)p 820 299 V 113 w(Default)g(V)l(alue)p |
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| 2 v 357 340 a(Material)f(P)o(arameters)p 332 359 V 331 |
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| 596 415 V 661 398 a FC(color)p 820 415 V 89 w(\(0)p Fy(:)p |
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| Fz(e)448 580 y Fu(cm)p 588 589 V 596 589 V 661 573 a |
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| b FC(0)p Fy(:)p FC(0)p Fy(;)f FC(0)p Fy(:)p FC(0)o Fy(;)h |
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| 687 y([0)p Fy(:)p FC(0)p Fy(;)8 b FC(128)p Fy(:)p FC(0])o(\))p |
| 1818 704 V 332 706 1487 2 v 331 762 2 57 v 432 745 a |
| Fy(a)456 752 y Fu(m)p 588 762 V 596 762 V 672 745 a FC(real)p |
| 820 762 V 236 w(0)p Fy(:)p FC(0)p 1198 762 V 184 w(am)o(bien)o(t)15 |
| b(color)h(index)p 1818 762 V 332 764 1487 2 v 331 820 |
| 2 57 v 432 803 a Fy(d)456 810 y Fu(m)p 588 820 V 596 |
| 820 V 672 803 a FC(real)p 820 820 V 236 w(1)p Fy(:)p |
| FC(0)p 1198 820 V 184 w(di\013use)g(color)f(index)p 1818 |
| 820 V 332 822 1487 2 v 331 878 2 57 v 433 861 a Fy(s)454 |
| 868 y Fu(m)p 588 878 V 596 878 V 672 861 a FC(real)p |
| 820 878 V 236 w(1)p Fy(:)p FC(0)p 1198 878 V 184 w(sp)q(ecular)h(color) |
| g(index)p 1818 878 V 332 880 1487 2 v 357 920 a(Ligh)o(t)g(Source)f(P)o |
| (arameters)p 332 938 V 331 995 2 57 v 427 978 a Fz(a)452 |
| 985 y Fu(cli)p 588 995 V 596 995 V 661 978 a FC(color)p |
| 820 995 V 89 w(\(0)p Fy(:)p FC(0)p Fy(;)8 b FC(0)p Fy(:)p |
| FC(0)p Fy(;)f FC(0)p Fy(:)p FC(0)o Fy(;)h FC(1)o Fy(:)p |
| FC(0\))p 1198 995 V 46 w(am)o(bien)o(t)15 b(in)o(tensit)o(y)h(of)f |
| (ligh)o(t)h Fy(i)p 1818 995 V 332 996 1487 2 v 331 1053 |
| 2 57 v 358 1036 a Fz(d)387 1043 y Fu(cli)428 1036 y FC(\()p |
| Fy(i)c FC(=)h(0\))p 588 1053 V 597 1053 V 98 w(color)p |
| 820 1053 V 89 w(\(1)p Fy(:)p FC(0)p Fy(;)8 b FC(1)p Fy(:)p |
| FC(0)p Fy(;)f FC(1)p Fy(:)p FC(0)o Fy(;)h FC(1)o Fy(:)p |
| FC(0\))p 1198 1053 V 46 w(di\013use)16 b(in)o(tensit)o(y)g(of)f(ligh)o |
| (t)g(0)p 1818 1053 V 331 1109 V 358 1092 a Fz(d)387 1099 |
| y Fu(cli)428 1092 y FC(\()p Fy(i)d(>)h FC(0\))p 588 1109 |
| V 597 1109 V 98 w(color)p 820 1109 V 89 w(\(0)p Fy(:)p |
| FC(0)p Fy(;)8 b FC(0)p Fy(:)p FC(0)p Fy(;)f FC(0)p Fy(:)p |
| FC(0)o Fy(;)h FC(1)o Fy(:)p FC(0\))p 1198 1109 V 46 w(di\013use)16 |
| b(in)o(tensit)o(y)g(of)f(ligh)o(t)g Fy(i)p 1818 1109 |
| V 332 1111 1487 2 v 331 1167 2 57 v 363 1150 a Fz(s)384 |
| 1157 y Fu(cli)424 1150 y FC(\()p Fy(i)d FC(=)h(0\))p |
| 588 1167 V 597 1167 V 102 w(color)p 820 1167 V 89 w(\(1)p |
| Fy(:)p FC(0)p Fy(;)8 b FC(1)p Fy(:)p FC(0)p Fy(;)f FC(1)p |
| Fy(:)p FC(0)o Fy(;)h FC(1)o Fy(:)p FC(0\))p 1198 1167 |
| V 46 w(sp)q(ecular)16 b(in)o(tensit)o(y)g(of)f(ligh)o(t)h(0)p |
| 1818 1167 V 331 1224 V 363 1207 a Fz(s)384 1214 y Fu(cli)424 |
| 1207 y FC(\()p Fy(i)c(>)h FC(0\))p 588 1224 V 597 1224 |
| V 102 w(color)p 820 1224 V 89 w(\(0)p Fy(:)p FC(0)p Fy(;)8 |
| b FC(0)p Fy(:)p FC(0)p Fy(;)f FC(0)p Fy(:)p FC(0)o Fy(;)h |
| FC(1)o Fy(:)p FC(0\))p 1198 1224 V 46 w(sp)q(ecular)16 |
| b(in)o(tensit)o(y)g(of)f(ligh)o(t)h Fy(i)p 1818 1224 |
| V 332 1225 1487 2 v 331 1282 2 57 v 421 1265 a Fz(P)457 |
| 1272 y Fu(pli)p 588 1282 V 596 1282 V 630 1265 a FC(p)q(osition)p |
| 820 1282 V 59 w(\(0)p Fy(:)p FC(0)p Fy(;)8 b FC(0)p Fy(:)p |
| FC(0)p Fy(;)f FC(1)p Fy(:)p FC(0)o Fy(;)h FC(0)o Fy(:)p |
| FC(0\))p 1198 1282 V 46 w(p)q(osition)16 b(of)f(ligh)o(t)h |
| Fy(i)p 1818 1282 V 332 1284 1487 2 v 331 1396 2 113 v |
| 428 1323 a Fz(s)449 1330 y Fu(dli)p 588 1396 V 596 1396 |
| V 622 1323 a FC(direction)p 820 1396 V 72 w(\(0)p Fy(:)p |
| FC(0)p Fy(;)8 b FC(0)p Fy(:)p FC(0)p Fy(;)g FB(\000)p |
| FC(1)p Fy(:)o FC(0\))p 1198 1396 V 68 w(direction)k(of)d(sp)q(otligh)o |
| (t)i(for)e(ligh)o(t)1224 1379 y Fy(i)p 1818 1396 V 332 |
| 1398 1487 2 v 331 1511 2 113 v 429 1438 a(s)450 1445 |
| y Fu(r)q(li)p 588 1511 V 596 1511 V 672 1438 a FC(real)p |
| 820 1511 V 236 w(0.0)p 1198 1511 V 184 w(sp)q(otligh)o(t)14 |
| b(exp)q(onen)o(t)h(for)e(ligh)o(t)h Fy(i)1224 1494 y |
| FC(\(range:)19 b([0)p Fy(:)p FC(0)p Fy(;)8 b FC(128)p |
| Fy(:)p FC(0])o(\))p 1818 1511 V 332 1513 1487 2 v 331 |
| 1682 2 170 v 430 1552 a Fy(c)450 1559 y Fu(r)q(li)p 588 |
| 1682 V 596 1682 V 672 1552 a FC(real)p 820 1682 V 213 |
| w(180.0)p 1198 1682 V 161 w(sp)q(otligh)o(t)42 b(cuto\013)f(angle)i |
| (for)1224 1609 y(ligh)o(t)35 b Fy(i)g FC(\(range:)58 |
| b([0)p Fy(:)p FC(0)p Fy(;)8 b FC(90)p Fy(:)p FC(0])o(,)1224 |
| 1665 y(180)p Fy(:)p FC(0\))p 1818 1682 V 332 1684 1487 |
| 2 v 331 1797 2 113 v 433 1723 a Fy(k)457 1730 y Fq(0)p |
| Fu(i)p 588 1797 V 596 1797 V 672 1723 a FC(real)p 820 |
| 1797 V 236 w(1.0)p 1198 1797 V 184 w(constan)o(t)28 b(atten)o(uation)h |
| (factor)1224 1780 y(for)15 b(ligh)o(t)g(i)h(\(range:)j([0)p |
| Fy(:)p FC(0)p Fy(;)8 b FB(1)p FC(\)\))p 1818 1797 V 332 |
| 1798 1487 2 v 331 1911 2 113 v 433 1838 a Fy(k)457 1845 |
| y Fq(1)p Fu(i)p 588 1911 V 596 1911 V 672 1838 a FC(real)p |
| 820 1911 V 236 w(0.0)p 1198 1911 V 184 w(linear)22 b(atten)o(uation)d |
| (factor)h(for)1224 1894 y(ligh)o(t)c(i)g(\(range:)j([0)p |
| Fy(:)p FC(0)p Fy(;)8 b FB(1)p FC(\)\))p 1818 1911 V 332 |
| 1913 1487 2 v 331 2026 2 113 v 433 1952 a Fy(k)457 1959 |
| y Fq(2)p Fu(i)p 588 2026 V 596 2026 V 672 1952 a FC(real)p |
| 820 2026 V 236 w(0.0)p 1198 2026 V 184 w(quadratic)19 |
| b(atten)o(uation)g(factor)1224 2009 y(for)c(ligh)o(t)g(i)h(\(range:)j |
| ([0)p Fy(:)p FC(0)p Fy(;)8 b FB(1)p FC(\)\))p 1818 2026 |
| V 332 2027 1487 2 v 357 2067 a(Ligh)o(ting)16 b(Mo)q(del)g(P)o |
| (arameters)p 332 2086 V 331 2142 2 57 v 431 2125 a Fz(a)456 |
| 2132 y Fu(cs)p 588 2142 V 596 2142 V 661 2125 a FC(color)p |
| 820 2142 V 89 w(\(0)p Fy(:)p FC(2)p Fy(;)8 b FC(0)p Fy(:)p |
| FC(2)p Fy(;)f FC(0)p Fy(:)p FC(2)o Fy(;)h FC(1)o Fy(:)p |
| FC(0\))p 1198 2142 V 46 w(am)o(bien)o(t)15 b(color)h(of)e(scene)p |
| 1818 2142 V 332 2144 1487 2 v 331 2313 2 170 v 433 2183 |
| a Fy(v)455 2190 y Fu(bs)p 588 2313 V 596 2313 V 632 2183 |
| a FC(b)q(o)q(olean)p 820 2313 V 171 w Fr(FALSE)p 1198 |
| 2313 V 158 w FC(view)o(er)38 b(assumed)f(to)g(b)q(e)h(at)1224 |
| 2240 y(\(0)p Fy(;)8 b FC(0)p Fy(;)g FC(0\))30 b(in)k(ey)o(e)f(co)q |
| (ordinates)1224 2296 y(\()p Fr(TRUE)p FC(\))14 b(or)g(\(0)p |
| Fy(;)8 b FC(0)p Fy(;)g FB(1)p FC(\))13 b(\()p Fr(FALSE)p |
| FC(\))p 1818 2313 V 332 2315 1487 2 v 331 2371 2 57 v |
| 435 2354 a Fy(t)451 2361 y Fu(bs)p 588 2371 V 596 2371 |
| V 632 2354 a FC(b)q(o)q(olean)p 820 2371 V 171 w Fr(FALSE)p |
| 1198 2371 V 158 w FC(use)j(t)o(w)o(o-sided)f(ligh)o(ting)h(mo)q(de)p |
| 1818 2371 V 332 2373 1487 2 v 332 2450 a(T)l(able)i(2.7:)k(Summary)17 |
| b(of)g(ligh)o(ting)h(parameters.)25 b(The)17 b(range)g(of)f(individual) |
| k(color)332 2506 y(comp)q(onen)o(ts)15 b(is)h(\()p FB(\0001)p |
| Fy(;)8 b FC(+)p FB(1)p FC(\).)p eop |
| %%Page: 45 54 |
| 45 53 bop 120 137 a Fx(2.13.)34 b(COLORS)17 b(AND)e(COLORING)746 |
| b FC(45)191 286 y(The)15 b(color)h Fz(c)f FC(pro)q(duced)h(b)o(y)f |
| (ligh)o(ting)i(a)e(v)o(ertex)g(is)g(giv)o(en)h(b)o(y)389 |
| 373 y Fz(c)42 b FC(=)g Fz(e)555 380 y Fu(cm)454 442 y |
| FC(+)g Fz(a)556 449 y Fu(cm)615 442 y FB(\003)9 b Fz(a)672 |
| 449 y Fu(cs)454 544 y FC(+)531 491 y Fu(n)p FG(\000)p |
| Fq(1)534 503 y Fi(X)535 594 y Fu(i)p Fq(=0)597 544 y |
| FC(\()p Fy(att)671 551 y Fu(i)686 544 y FC(\)\()p Fy(spot)804 |
| 551 y Fu(i)818 544 y FC(\))e([)p Fz(a)881 551 y Fu(cm)939 |
| 544 y FB(\003)j Fz(a)997 551 y Fu(cli)765 618 y FC(+)43 |
| b(\()p Fz(n)9 b FB(\014)944 587 y(\000)-6 b(!)944 618 |
| y Fz(VP)1012 625 y Fu(pli)1055 618 y FC(\))p Fz(d)1102 |
| 625 y Fu(cm)1160 618 y FB(\003)10 b Fz(d)1222 625 y Fu(cli)765 |
| 678 y FC(+)43 b(\()p Fy(f)883 685 y Fu(i)896 678 y FC(\)\()p |
| Fz(n)10 b FB(\014)1019 666 y FC(^)1016 678 y Fz(h)1045 |
| 685 y Fu(i)1059 678 y FC(\))1077 662 y Fu(s)1093 666 |
| y Fg(r)q(m)1140 678 y Fz(s)1161 685 y Fu(cm)1219 678 |
| y FB(\003)g Fz(s)1273 685 y Fu(cli)1313 678 y FC(])120 |
| 761 y(where)237 872 y Fy(f)259 879 y Fu(i)314 872 y FC(=)391 |
| 800 y Fi(\()445 853 y FC(1)p Fy(;)41 b Fz(n)10 b FB(\014)607 |
| 822 y(\000)-6 b(!)607 853 y Fz(VP)675 860 y Fu(pli)730 |
| 853 y FB(6)p FC(=)13 b(0)p Fy(;)445 909 y FC(0)p Fy(;)41 |
| b FC(otherwise,)1521 872 y(\(2.2\))230 1165 y Fz(h)259 |
| 1172 y Fu(i)314 1165 y FC(=)391 1079 y Fi(8)391 1116 |
| y(<)391 1191 y(:)449 1106 y FB(\000)-6 b(!)449 1137 y |
| Fz(VP)517 1144 y Fu(pli)569 1137 y FC(+)615 1106 y FB(\000)g(!)615 |
| 1137 y Fz(VP)683 1144 y Fu(e)701 1137 y Fy(;)200 b(v)936 |
| 1144 y Fu(bs)982 1137 y FC(=)13 b Fw(TRUE)o Fy(;)449 |
| 1180 y FB(\000)-6 b(!)449 1211 y Fz(VP)517 1218 y Fu(pli)569 |
| 1211 y FC(+)11 b(\()c(0)45 b(0)h(1)7 b(\))825 1190 y |
| Fu(T)860 1211 y Fy(;)41 b(v)936 1218 y Fu(bs)982 1211 |
| y FC(=)13 b Fw(FALSE)o Fy(;)1521 1165 y FC(\(2.3\))202 |
| 1480 y Fy(att)258 1487 y Fu(i)314 1480 y FC(=)391 1382 |
| y Fi(8)391 1419 y(>)391 1431 y(<)391 1506 y(>)391 1519 |
| y(:)770 1411 y FC(1)p 454 1418 655 2 v 454 1460 a Fy(k)478 |
| 1467 y Fq(0)p Fu(i)527 1460 y FC(+)18 b Fy(k)604 1467 |
| y Fq(1)p Fu(i)635 1460 y FB(k)p Fz(VP)734 1467 y Fu(pli)776 |
| 1460 y FB(k)g FC(+)g Fy(k)894 1467 y Fq(2)p Fu(i)925 |
| 1460 y FB(k)p Fz(VP)1024 1467 y Fu(pli)1066 1460 y FB(k)1089 |
| 1441 y Fq(2)1113 1428 y Fy(;)41 b FC(if)16 b Fz(P)1245 |
| 1435 y Fu(pli)1287 1428 y FC('s)f Fy(w)f FB(6)p FC(=)f(0,)752 |
| 1539 y(1)p Fy(:)p FC(0)p Fy(;)343 b FC(otherwise,)1521 |
| 1480 y(\(2.4\))176 1823 y Fy(spot)258 1830 y Fu(i)314 |
| 1823 y FC(=)391 1712 y Fi(8)391 1750 y(>)391 1762 y(>)391 |
| 1775 y(<)391 1849 y(>)391 1862 y(>)391 1874 y(:)449 1767 |
| y FC(\()467 1736 y FB(\000)-15 b(\000)-10 b(\000)-15 |
| b(!)467 1767 y Fz(P)495 1774 y Fu(pli)538 1767 y Fz(V)10 |
| b FB(\014)632 1766 y FC(^)633 1767 y Fz(s)654 1774 y |
| Fu(dli)697 1767 y FC(\))715 1750 y Fu(s)731 1756 y Fg(r)q(li)772 |
| 1767 y Fy(;)41 b(c)846 1774 y Fu(r)q(li)900 1767 y FB(6)p |
| FC(=)13 b(180)p Fy(:)p FC(0)p Fy(;)1074 1736 y FB(\000)-15 |
| b(\000)j(\000)d(!)1074 1767 y Fz(P)1100 1774 y Fu(pli)1143 |
| 1767 y Fz(V)10 b FB(\014)1237 1766 y FC(^)1238 1767 y |
| Fz(s)1259 1774 y Fu(dli)1315 1767 y FB(\025)j FC(cos\()p |
| Fy(c)1462 1774 y Fu(r)q(li)1503 1767 y FC(\))p Fy(;)581 |
| 1841 y FC(0)p Fy(:)p FC(0)p Fy(;)173 b(c)846 1848 y Fu(r)q(li)900 |
| 1841 y FB(6)p FC(=)13 b(180)p Fy(:)p FC(0)p Fy(;)1074 |
| 1810 y FB(\000)-15 b(\000)j(\000)d(!)1074 1841 y Fz(P)1100 |
| 1848 y Fu(pli)1143 1841 y Fz(V)10 b FB(\014)1237 1840 |
| y FC(^)1238 1841 y Fz(s)1259 1848 y Fu(dli)1315 1841 |
| y Fy(<)j FC(cos\()p Fy(c)1462 1848 y Fu(r)q(li)1503 1841 |
| y FC(\))p Fy(;)581 1897 y FC(1)p Fy(:)p FC(0)p Fy(;)173 |
| b(c)846 1904 y Fu(r)q(li)900 1897 y FC(=)13 b(180)p Fy(:)p |
| FC(0)p Fy(:)1521 1823 y FC(\(2.5\))120 1980 y(All)k(computations)e(are) |
| g(carried)h(out)e(in)i(ey)o(e)g(co)q(ordinates.)191 2037 |
| y(The)h(v)m(alue)g(of)f(A)h(pro)q(duced)g(b)o(y)g(ligh)o(ting)h(is)e |
| (the)h(alpha)g(v)m(alue)h(asso)q(ciated)e(with)120 2093 |
| y Fz(d)149 2100 y Fu(cm)198 2093 y FC(.)23 b(Results)17 |
| b(of)f(ligh)o(ting)i(are)e(unde\014ned)i(if)f(the)f Fy(w)1055 |
| 2100 y Fu(e)1089 2093 y FC(co)q(ordinate)h(\()p Fy(w)f |
| FC(in)i(ey)o(e)e(co)q(or-)120 2149 y(dinates\))g(of)f |
| Fz(V)g FC(is)h(zero.)191 2206 y(Ligh)o(ting)i(ma)o(y)e(op)q(erate)h(in) |
| h Fv(two-side)n(d)f FC(mo)q(de)g(\()p Fy(t)1051 2213 |
| y Fu(bs)1100 2206 y FC(=)f Fw(TRUE)o FC(\),)h(in)h(whic)o(h)g(a)e |
| Fv(fr)n(ont)120 2262 y FC(color)h(is)g(computed)g(with)g(one)f(set)h |
| (of)f(material)h(parameters)e(\(the)i Fv(fr)n(ont)g(material)p |
| FC(\))120 2319 y(and)e(a)g Fv(b)n(ack)g FC(color)g(is)g(computed)g |
| (with)h(a)e(second)i(set)e(of)h(material)g(parameters)f(\(the)120 |
| 2375 y Fv(b)n(ack)e(material)p FC(\).)18 b(This)11 b(second)g |
| (computation)g(replaces)g Fz(n)f FC(with)h FB(\000)p |
| Fz(n)p FC(.)19 b(If)10 b Fy(t)1388 2382 y Fu(bs)1435 |
| 2375 y FC(=)j Fw(FALSE)o FC(,)120 2432 y(then)19 b(the)f(bac)o(k)h |
| (color)f(and)g(fron)o(t)g(color)g(are)g(b)q(oth)h(assigned)g(the)f |
| (color)g(computed)120 2488 y(using)e(the)g(fron)o(t)e(material)h(with)h |
| Fz(n)p FC(.)p eop |
| %%Page: 46 55 |
| 46 54 bop 332 137 a FC(46)643 b Fx(CHAPTER)16 b(2.)34 |
| b(OPENGL)16 b(OPERA)l(TION)403 286 y FC(The)10 b(selection)i(b)q(et)o |
| (w)o(een)e(bac)o(k)g(color)h(and)f(fron)o(t)f(color)i(dep)q(ends)h(on)e |
| (the)g(primitiv)o(e)332 343 y(of)17 b(whic)o(h)g(the)g(v)o(ertex)g(b)q |
| (eing)h(lit)f(is)h(a)e(part.)24 b(If)18 b(the)e(primitiv)o(e)j(is)e(a)g |
| (p)q(oin)o(t)g(or)f(a)h(line)332 399 y(segmen)o(t,)23 |
| b(the)e(fron)o(t)g(color)h(is)g(alw)o(a)o(ys)f(selected.)41 |
| b(If)22 b(it)g(is)g(a)g(p)q(olygon,)h(then)f(the)332 |
| 456 y(selection)16 b(is)f(based)f(on)g(the)h(sign)f(of)g(the)h(\(clipp) |
| q(ed)h(or)e(unclipp)q(ed\))j(p)q(olygon's)d(signed)332 |
| 512 y(area)h(computed)g(in)h(windo)o(w)g(co)q(ordinates.)k(One)c(w)o(a) |
| o(y)e(to)h(compute)g(this)h(area)e(is)815 653 y Fy(a)f |
| FC(=)905 623 y(1)p 905 643 23 2 v 905 685 a(2)940 601 |
| y Fu(n)p FG(\000)p Fq(1)944 613 y Fi(X)945 704 y Fu(i)p |
| Fq(=0)1014 653 y Fy(x)1040 635 y Fu(i)1040 665 y(w)1069 |
| 653 y Fy(y)1093 635 y Fu(i)p FG(\010)p Fq(1)1091 665 |
| y Fu(w)1162 653 y FB(\000)d Fy(x)1233 635 y Fu(i)p FG(\010)p |
| Fq(1)1233 665 y Fu(w)1293 653 y Fy(y)1317 635 y Fu(i)1315 |
| 665 y(w)1733 653 y FC(\(2.6\))332 801 y(where)18 b Fy(x)492 |
| 784 y Fu(i)492 812 y(w)537 801 y FC(and)g Fy(y)652 784 |
| y Fu(i)650 812 y(w)695 801 y FC(are)f(the)h Fy(x)f FC(and)h |
| Fy(y)h FC(windo)o(w)e(co)q(ordinates)h(of)f(the)g Fy(i)p |
| FC(th)g(v)o(ertex)g(of)332 857 y(the)c Fy(n)p FC(-v)o(ertex)h(p)q |
| (olygon)g(\(v)o(ertices)f(are)g(n)o(um)o(b)q(ered)h(starting)f(at)f |
| (zero)h(for)g(purp)q(oses)h(of)332 914 y(this)h(computation\))f(and)h |
| Fy(i)8 b FB(\010)h FC(1)14 b(is)h(\()p Fy(i)8 b FC(+)h(1\))j(mo)q(d)g |
| Fy(n)p FC(.)20 b(The)15 b(in)o(terpretation)f(of)g(the)h(sign)332 |
| 970 y(of)g(this)g(v)m(alue)i(is)f(con)o(trolled)g(with)446 |
| 1069 y Fw(void)29 b Fz(F)l(ron)o(tF)l(ace)p FC(\()h Fw(enum)14 |
| b Fv(dir)i FC(\))f Fw(;)332 1168 y FC(Setting)22 b Fv(dir)g |
| FC(to)f Fr(CCW)g FC(\(corresp)q(onding)h(to)f(coun)o(ter-clo)q(c)o |
| (kwise)i(orien)o(tation)e(of)g(the)332 1225 y(pro)s(jected)16 |
| b(p)q(olygon)h(in)f(windo)o(w)h(co)q(ordinates\))f(indicates)i(that)d |
| (if)i Fy(a)d FB(\024)g FC(0,)i(then)g(the)332 1281 y(color)j(of)g(eac)o |
| (h)h(v)o(ertex)f(of)f(the)i(p)q(olygon)g(b)q(ecomes)f(the)h(bac)o(k)f |
| (color)g(computed)h(for)332 1338 y(that)15 b(v)o(ertex)g(while)h(if)g |
| Fy(a)d(>)g FC(0,)i(then)h(the)f(fron)o(t)g(color)g(is)h(selected.)21 |
| b(If)16 b Fv(dir)g FC(is)g Fr(CW)p FC(,)e(then)332 1394 |
| y Fy(a)g FC(is)h(replaced)g(b)o(y)f FB(\000)p Fy(a)h |
| FC(in)g(the)f(ab)q(o)o(v)o(e)g(inequalities.)22 b(This)15 |
| b(requires)g(one)f(bit)h(of)f(state;)332 1451 y(initially)l(,)k(it)d |
| (indicates)i Fr(CCW)p FC(.)332 1580 y Fl(2.13.2)55 b(Ligh)n(ting)18 |
| b(P)n(arameter)g(Sp)r(eci\014cation)332 1669 y FC(Ligh)o(ting)d |
| (parameters)f(are)g(divided)i(in)o(to)f(three)f(categories:)19 |
| b(material)c(parameters,)332 1725 y(ligh)o(t)e(source)f(parameters,)g |
| (and)g(ligh)o(ting)h(mo)q(del)g(parameters)f(\(see)g(T)l(able)h(2.7\).) |
| k(Sets)332 1782 y(of)e(ligh)o(ting)h(parameters)f(are)f(sp)q(eci\014ed) |
| k(with)446 1881 y Fw(void)29 b Fz(Material)p FB(f)p Fz(if)p |
| FB(g)p FC(\()j Fw(enum)14 b Fv(fac)n(e)p Fw(,)h(enum)g |
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| %%Page: 47 56 |
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| %%Page: 48 57 |
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| %%Page: 49 58 |
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| 547 y FC(\))p Fy(:)120 630 y(R)p FC(\()p Fz(x)p FC(\))16 |
| b(indicates)i(the)e(R)h(comp)q(onen)o(t)g(of)f(the)h(color)f |
| Fz(x)g FC(and)h(similarly)h(for)e Fy(G)p FC(\()p Fz(x)p |
| FC(\))g(and)120 687 y Fy(B)r FC(\()p Fz(x)p FC(\).)191 |
| 743 y(Next,)f(let)488 827 y Fy(s)e FC(=)589 774 y Fu(n)570 |
| 787 y Fi(X)571 878 y Fu(i)p Fq(=0)630 827 y FC(\()p Fy(att)704 |
| 834 y Fu(i)718 827 y FC(\)\()p Fy(spot)836 834 y Fu(i)850 |
| 827 y FC(\)\()p Fy(s)907 834 y Fu(li)932 827 y FC(\)\()p |
| Fy(f)990 834 y Fu(i)1004 827 y FC(\)\()p Fz(n)c FB(\014)1127 |
| 815 y FC(^)1124 827 y Fz(h)1153 834 y Fu(i)1167 827 y |
| FC(\))1185 809 y Fu(s)1201 813 y Fg(r)q(m)120 945 y FC(where)15 |
| b Fy(att)307 952 y Fu(i)336 945 y FC(and)f Fy(spot)505 |
| 952 y Fu(i)534 945 y FC(are)g(giv)o(en)g(b)o(y)g(equations)h(2.4)e(and) |
| h(2.5,)f(resp)q(ectiv)o(ely)l(,)j(and)e Fy(f)1600 952 |
| y Fu(i)120 1001 y FC(and)212 989 y(^)209 1001 y Fz(h)238 |
| 1008 y Fu(i)268 1001 y FC(are)h(giv)o(en)h(b)o(y)f(equations)h(2.2)e |
| (and)i(2.3,)e(resp)q(ectiv)o(ely)l(.)23 b(Let)15 b Fy(s)1343 |
| 985 y FG(0)1368 1001 y FC(=)f(min)p FB(f)p Fy(s;)8 b |
| FC(1)p FB(g)p FC(.)120 1058 y(Finally)l(,)17 b(let)513 |
| 1142 y Fy(d)12 b FC(=)616 1089 y Fu(n)597 1102 y Fi(X)598 |
| 1193 y Fu(i)p Fq(=0)657 1142 y FC(\()p Fy(att)731 1149 |
| y Fu(i)746 1142 y FC(\)\()p Fy(spot)864 1149 y Fu(i)878 |
| 1142 y FC(\)\()p Fy(d)938 1149 y Fu(li)962 1142 y FC(\)\()p |
| Fz(n)d FB(\014)1082 1111 y(\000)-6 b(!)1082 1142 y Fz(VP)1149 |
| 1149 y Fu(pli)1192 1142 y FC(\))p Fy(:)120 1260 y FC(Then)16 |
| b(color)f(index)i(ligh)o(ting)f(pro)q(duces)g(a)f(v)m(alue)i |
| Fy(c)p FC(,)d(giv)o(en)i(b)o(y)431 1361 y Fy(c)d FC(=)g |
| Fy(a)536 1368 y Fu(m)579 1361 y FC(+)d Fy(d)p FC(\(1)g |
| FB(\000)g Fy(s)765 1343 y FG(0)777 1361 y FC(\)\()p Fy(d)837 |
| 1368 y Fu(m)879 1361 y FB(\000)h Fy(a)949 1368 y Fu(m)982 |
| 1361 y FC(\))f(+)g Fy(s)1076 1343 y FG(0)1088 1361 y |
| FC(\()p Fy(s)1127 1368 y Fu(m)1171 1361 y FB(\000)g Fy(a)1240 |
| 1368 y Fu(m)1274 1361 y FC(\))p Fy(:)120 1463 y FC(The)16 |
| b(\014nal)g(color)f(index)i(is)707 1520 y Fy(c)727 1501 |
| y FG(0)751 1520 y FC(=)c(min)q FB(f)p Fy(c;)8 b(s)960 |
| 1527 y Fu(m)992 1520 y FB(g)p Fy(:)120 1603 y FC(The)18 |
| b(v)m(alues)g Fy(a)377 1610 y Fu(m)411 1603 y FC(,)f |
| Fy(d)465 1610 y Fu(m)515 1603 y FC(and)h Fy(s)627 1610 |
| y Fu(m)678 1603 y FC(are)f(material)g(prop)q(erties)h(describ)q(ed)i |
| (in)e(T)l(ables)g(2.7)120 1660 y(and)h(2.8.)28 b(An)o(y)18 |
| b(am)o(bien)o(t)g(ligh)o(t)h(in)o(tensities)h(are)d(incorp)q(orated)i |
| (in)o(to)f Fy(a)1381 1667 y Fu(m)1415 1660 y FC(.)28 |
| b(As)18 b(with)120 1716 y(R)o(GBA)12 b(ligh)o(ting,)i(disabled)f(ligh)o |
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| 1773 y(mations)h(to)f(b)q(e)i(omitted.)19 b(The)13 b(in)o(terpretation) |
| g(of)g Fy(t)1033 1780 y Fu(bs)1080 1773 y FC(and)g(the)g(calculation)h |
| (of)f(fron)o(t)120 1829 y(and)23 b(bac)o(k)f(colors)g(is)g(carried)h |
| (out)f(as)f(has)h(already)h(b)q(een)g(describ)q(ed)h(for)e(R)o(GBA)120 |
| 1885 y(ligh)o(ting.)191 1942 y(The)27 b(v)m(alues)i Fy(a)468 |
| 1949 y Fu(m)501 1942 y FC(,)h Fy(d)568 1949 y Fu(m)601 |
| 1942 y FC(,)f(and)f Fy(s)765 1949 y Fu(m)825 1942 y FC(are)f(set)g |
| (with)g Fz(Material)i FC(using)f Fv(pr)n(op)f FC(of)120 |
| 1998 y Fr(COLOR)p 233 1998 14 2 v 15 w(INDEXES)p FC(.)18 |
| b(Their)j(initial)h(v)m(alues)f(are)e(0,)i(1,)f(and)g(1,)h(resp)q |
| (ectiv)o(ely)l(.)36 b(The)20 b(ad-)120 2055 y(ditional)f(state)e |
| (consists)g(of)g(three)g(\015oating-p)q(oin)o(t)h(v)m(alues.)28 |
| b(These)17 b(v)m(alues)i(ha)o(v)o(e)e(no)120 2111 y(e\013ect)e(on)g(R)o |
| (GBA)h(ligh)o(ting.)120 2233 y Fl(2.13.6)56 b(Clamping)17 |
| b(or)i(Masking)120 2319 y FC(After)f(ligh)o(ting)h(\(whether)f(enabled) |
| h(or)f(not\),)f(R)o(GBA)h(colors)g(are)g(clamp)q(ed)h(to)f(the)120 |
| 2375 y(range)12 b([0)p Fy(;)c FC(1].)17 b(F)l(or)11 b(a)h(color)g |
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| %%Page: 52 61 |
| 52 60 bop 332 137 a FC(52)643 b Fx(CHAPTER)16 b(2.)34 |
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| Fy(i)p 1313 299 V 108 w FC(V)l(ertex)p 1493 299 V 664 |
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| (\()p Fy(i)11 b FB(\021)i FC(1\))p 1313 365 V 271 w(1)p |
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| 1313 423 V 410 w Fy(i)10 b FC(+)g(2)p 1493 423 V 664 |
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| 1313 482 V 439 w Fy(i)10 b FC(+)g(2)p 1493 482 V 664 |
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| b(triangle)p 1313 540 V 287 w(3)p Fy(i)p 1493 540 V 664 |
| 541 830 2 v 663 598 2 57 v 689 581 a FC(quad)e(strip)p |
| 1313 598 V 453 w(2)p Fy(i)9 b FC(+)i(2)p 1493 598 V 664 |
| 599 830 2 v 663 656 2 57 v 689 639 a(indep)q(enden)o(t)18 |
| b(quad)p 1313 656 V 341 w(4)p Fy(i)p 1493 656 V 664 658 |
| 830 2 v 332 785 a FC(T)l(able)12 b(2.9:)17 b(P)o(olygon)10 |
| b(\015atshading)h(color)g(selection.)20 b(The)11 b(color)g(used)h(for)e |
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| (generated)g(b)o(y)g(the)g(indicated)h Fz(Begin)p FC(/)p |
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| 1889 y(Flatshading)g(is)h(con)o(trolled)g(b)o(y)446 1992 |
| y Fw(void)29 b Fz(ShadeMo)q(del)p FC(\()j Fw(enum)14 |
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| %%Page: 53 62 |
| 53 61 bop 120 137 a Fx(2.13.)34 b(COLORS)17 b(AND)e(COLORING)746 |
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| (ertices)h Fz(P)1093 406 y Fq(1)1132 399 y FC(and)g Fz(P)1260 |
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| Fy(n)p FC(.)191 1966 y(Denote)h(a)g(datum)g(at)g Fy(p)612 |
| 1973 y Fu(a)632 1966 y FC(,)g Fy(p)684 1973 y Fu(b)701 |
| 1966 y FC(,)h(or)e Fy(p)810 1973 y Fu(c)844 1966 y FC(as)h |
| Fy(f)923 1973 y Fu(a)944 1966 y FC(,)g Fy(f)995 1973 |
| y Fu(b)1012 1966 y FC(,)g(or)g Fy(f)1120 1973 y Fu(c)1138 |
| 1966 y FC(,)g(resp)q(ectiv)o(ely)l(.)25 b(Then)17 b(the)120 |
| 2023 y(v)m(alue)e Fy(f)k FC(of)13 b(a)g(datum)h(at)f(a)g(fragmen)o(t)f |
| (pro)q(duced)j(b)o(y)f(rasterizing)g(a)f(triangle)h(is)g(giv)o(en)120 |
| 2079 y(b)o(y)550 2157 y Fy(f)j FC(=)653 2126 y Fy(af)699 |
| 2133 y Fu(a)720 2126 y Fy(=w)776 2133 y Fu(a)806 2126 |
| y FC(+)10 b Fy(bf)893 2133 y Fu(b)910 2126 y Fy(=w)966 |
| 2133 y Fu(b)993 2126 y FC(+)g Fy(cf)1080 2133 y Fu(c)1098 |
| 2126 y Fy(=w)1154 2133 y Fu(c)p 642 2146 539 2 v 642 |
| 2188 a Fy(a\013)695 2195 y Fu(a)716 2188 y Fy(=w)772 |
| 2195 y Fu(a)803 2188 y FC(+)g Fy(b\013)897 2195 y Fu(b)914 |
| 2188 y Fy(=w)970 2195 y Fu(b)996 2188 y FC(+)h Fy(c\013)1091 |
| 2195 y Fu(c)1108 2188 y Fy(=w)1164 2195 y Fu(c)1521 2157 |
| y FC(\(3.4\))120 2262 y(where)h Fy(w)281 2269 y Fu(a)301 |
| 2262 y FC(,)g Fy(w)359 2269 y Fu(b)387 2262 y FC(and)f |
| Fy(w)504 2269 y Fu(c)532 2262 y FC(are)g(the)h(clip)h |
| Fy(w)f FC(co)q(ordinates)f(of)g Fy(p)1114 2269 y Fu(a)1135 |
| 2262 y FC(,)g Fy(p)1182 2269 y Fu(b)1199 2262 y FC(,)h(and)f |
| Fy(p)1331 2269 y Fu(c)1349 2262 y FC(,)g(resp)q(ectiv)o(ely)l(.)120 |
| 2319 y Fy(a)p FC(,)h Fy(b)p FC(,)g(and)f Fy(c)h FC(are)f(the)g(barycen) |
| o(tric)h(co)q(ordinates)g(of)f(the)h(fragmen)o(t)e(for)h(whic)o(h)i |
| (the)e(data)120 2375 y(are)16 b(pro)q(duced.)23 b Fy(\013)444 |
| 2382 y Fu(a)478 2375 y FC(=)14 b Fy(\013)556 2382 y Fu(b)587 |
| 2375 y FC(=)g Fy(\013)665 2382 y Fu(c)696 2375 y FC(=)f(1)j(except)g |
| (for)f(texture)h Fy(s)p FC(,)f Fy(t)p FC(,)h(and)g Fy(r)h |
| FC(co)q(ordinates,)120 2432 y(for)i(whic)o(h)i Fy(\013)358 |
| 2439 y Fu(a)399 2432 y FC(=)f Fy(q)474 2439 y Fu(a)495 |
| 2432 y FC(,)h Fy(\013)558 2439 y Fu(b)595 2432 y FC(=)f |
| Fy(q)670 2439 y Fu(b)688 2432 y FC(,)g(and)g Fy(\013)843 |
| 2439 y Fu(c)880 2432 y FC(=)h Fy(q)956 2439 y Fu(c)993 |
| 2432 y FC(\(if)f(an)o(y)f(of)g Fy(q)1223 2439 y Fu(a)1244 |
| 2432 y FC(,)i Fy(q)1298 2439 y Fu(b)1315 2432 y FC(,)f(or)g |
| Fy(q)1429 2439 y Fu(c)1466 2432 y FC(are)f(less)120 2488 |
| y(than)f(or)e(equal)j(to)d(zero,)i(results)f(are)h(unde\014ned\).)27 |
| b Fy(a)p FC(,)18 b Fy(b)p FC(,)f(and)h Fy(c)f FC(m)o(ust)f(corresp)q |
| (ond)p eop |
| %%Page: 68 77 |
| 68 76 bop 332 137 a FC(68)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)332 286 y FC(precisely)13 b(to)d(the)h(exact)g(co)q |
| (ordinates)h(of)e(the)h(cen)o(ter)g(of)g(the)g(fragmen)o(t.)17 |
| b(Another)11 b(w)o(a)o(y)332 343 y(of)k(sa)o(ying)g(this)h(is)g(that)f |
| (the)g(data)g(asso)q(ciated)h(with)f(a)g(fragmen)o(t)g(m)o(ust)g(b)q(e) |
| h(sampled)332 399 y(at)f(the)g(fragmen)o(t's)f(cen)o(ter.)403 |
| 456 y(Just)19 b(as)g(with)h(line)i(segmen)o(t)d(rasterization,)h |
| (equation)g(3.4)e(ma)o(y)h(b)q(e)h(appro)o(xi-)332 512 |
| y(mated)15 b(b)o(y)776 569 y Fy(f)i FC(=)c Fy(af)909 |
| 576 y Fu(a)930 569 y Fy(=\013)982 576 y Fu(a)1013 569 |
| y FC(+)e Fy(bf)1101 576 y Fu(b)1117 569 y Fy(=\013)1169 |
| 576 y Fu(b)1197 569 y FC(+)f Fy(cf)1284 576 y Fu(c)1301 |
| 569 y Fy(=\013)1353 576 y Fu(c)1370 569 y FC(;)332 651 |
| y(this)15 b(ma)o(y)f(yield)i(acceptable)g(results)f(for)f(color)g(v)m |
| (alues)i(\(it)f Fv(must)f FC(b)q(e)i(used)f(for)f(depth)332 |
| 707 y(v)m(alues\),)i(but)f(will)i(normally)e(lead)h(to)f(unacceptable)i |
| (distortion)e(e\013ects)g(if)g(used)h(for)332 764 y(texture)f(co)q |
| (ordinates.)403 820 y(F)l(or)d(a)g(p)q(olygon)i(with)f(more)f(than)h |
| (three)g(edges,)g(w)o(e)f(require)i(only)f(that)f(a)h(con)o(v)o(ex)332 |
| 877 y(com)o(bination)g(of)f(the)g(v)m(alues)i(of)d(the)i(datum)f(at)f |
| (the)i(p)q(olygon's)f(v)o(ertices)h(can)f(b)q(e)h(used)332 |
| 933 y(to)g(obtain)h(the)g(v)m(alue)h(assigned)f(to)g(eac)o(h)f(fragmen) |
| o(t)g(pro)q(duced)i(b)o(y)f(the)g(rasterization)332 990 |
| y(algorithm.)20 b(That)15 b(is,)g(it)g(m)o(ust)g(b)q(e)h(the)f(case)g |
| (that)g(at)f(ev)o(ery)h(fragmen)o(t)964 1117 y Fy(f)j |
| FC(=)1071 1064 y Fu(n)1052 1077 y Fi(X)1054 1168 y Fu(i)p |
| Fq(=1)1120 1117 y Fy(a)1144 1124 y Fu(i)1158 1117 y Fy(f)1180 |
| 1124 y Fu(i)332 1251 y FC(where)d Fy(n)g FC(is)g(the)g(n)o(um)o(b)q(er) |
| h(of)e(v)o(ertices)h(in)h(the)f(p)q(olygon,)g Fy(f)1346 |
| 1258 y Fu(i)1375 1251 y FC(is)g(the)g(v)m(alue)h(of)e(the)h |
| Fy(f)20 b FC(at)332 1307 y(v)o(ertex)c Fy(i)p FC(;)h(for)g(eac)o(h)g |
| Fy(i)f FC(0)f FB(\024)h Fy(a)838 1314 y Fu(i)867 1307 |
| y FB(\024)g FC(1)h(and)1048 1275 y Fi(P)1091 1288 y Fu(n)1091 |
| 1319 y(i)p Fq(=1)1158 1307 y Fy(a)1182 1314 y Fu(i)1212 |
| 1307 y FC(=)e(1.)25 b(The)17 b(v)m(alues)h(of)e(the)h |
| Fy(a)1712 1314 y Fu(i)1743 1307 y FC(ma)o(y)332 1364 |
| y(di\013er)f(from)e(fragmen)o(t)g(to)h(fragmen)o(t,)e(but)j(at)e(v)o |
| (ertex)h Fy(i)p FC(,)f Fy(a)1353 1371 y Fu(j)1384 1364 |
| y FC(=)f(0)p Fy(;)8 b(j)14 b FB(6)p FC(=)f Fy(i)i FC(and)g |
| Fy(a)1700 1371 y Fu(i)1727 1364 y FC(=)e(1.)403 1420 |
| y(One)20 b(algorithm)g(that)g(ac)o(hiev)o(es)g(the)g(required)h(b)q |
| (eha)o(vior)g(is)f(to)g(triangulate)g(a)332 1477 y(p)q(olygon)15 |
| b(\(without)f(adding)i(an)o(y)e(v)o(ertices\))h(and)f(then)h(treat)f |
| (eac)o(h)h(triangle)g(individ-)332 1533 y(ually)j(as)f(already)g |
| (discussed.)27 b(A)17 b(scan-line)i(rasterizer)e(that)f(linearly)j(in)o |
| (terp)q(olates)332 1590 y(data)f(along)h(eac)o(h)g(edge)g(and)g(then)g |
| (linearly)i(in)o(terp)q(olates)e(data)g(across)f(eac)o(h)h(hor-)332 |
| 1646 y(izon)o(tal)h(span)f(from)f(edge)h(to)f(edge)i(also)e |
| (satis\014es)i(the)f(restrictions)g(\(in)g(this)h(case,)332 |
| 1702 y(the)14 b(n)o(umerator)f(and)g(denominator)h(of)f(equation)h(3.4) |
| f(should)i(b)q(e)f(iterated)g(indep)q(en-)332 1759 y(den)o(tly)i(and)f |
| (a)g(division)i(p)q(erformed)f(for)e(eac)o(h)i(fragmen)o(t\).)332 |
| 1880 y Fl(3.5.2)55 b(Stippling)332 1966 y FC(P)o(olygon)16 |
| b(stippling)i(w)o(orks)e(m)o(uc)o(h)g(the)g(same)g(w)o(a)o(y)f(as)h |
| (line)i(stippling,)g(masking)f(out)332 2022 y(certain)d(fragmen)o(ts)f |
| (pro)q(duced)h(b)o(y)g(rasterization)g(so)f(that)g(they)g(are)h(not)f |
| (sen)o(t)g(to)g(the)332 2079 y(next)20 b(stage)g(of)f(the)i(GL.)f(This) |
| g(is)h(the)f(case)g(regardless)h(of)f(the)g(state)f(of)h(p)q(olygon)332 |
| 2135 y(an)o(tialiasing.)h(Stippling)d(is)d(con)o(trolled)h(with)446 |
| 2227 y Fw(void)29 b Fz(P)o(olygonStipple)p FC(\()j Fw(ubyte)14 |
| b Fv(*p)n(attern)i FC(\))e Fw(;)332 2319 y Fv(p)n(attern)22 |
| b FC(is)h(a)e(p)q(oin)o(ter)i(to)e(memory)h(in)o(to)g(whic)o(h)g(a)g |
| (32)14 b FB(\002)h FC(32)22 b(pattern)f(is)i(pac)o(k)o(ed.)332 |
| 2375 y(The)e(pattern)g(is)g(unpac)o(k)o(ed)g(from)f(memory)h(according) |
| g(to)f(the)h(pro)q(cedure)h(giv)o(en)332 2432 y(in)c(section)g(3.6.3)e |
| (for)g Fz(Dra)o(wPixels)p FC(;)h(it)h(is)g(as)f(if)g(the)h |
| Fv(height)f FC(and)h Fv(width)g FC(passed)f(to)332 2488 |
| y(that)d(command)h(w)o(ere)f(b)q(oth)h(equal)g(to)f(32,)g(the)h |
| Fv(typ)n(e)g FC(w)o(ere)f Fr(BITMAP)p FC(,)f(and)i(the)g |
| Fv(format)p eop |
| %%Page: 69 78 |
| 69 77 bop 120 137 a Fx(3.5.)34 b(POL)l(YGONS)1089 b FC(69)120 |
| 286 y(w)o(ere)13 b Fr(COLOR)p 336 286 14 2 v 14 w(INDEX)p |
| FC(.)f(The)g(unpac)o(k)o(ed)i(v)m(alues)f(\(b)q(efore)g(an)o(y)f(con)o |
| (v)o(ersion)h(or)f(arithmetic)120 343 y(w)o(ould)17 b(ha)o(v)o(e)f(b)q |
| (een)i(p)q(erformed\))e(are)g(bit)o(wise)h(ANDed)g(with)g(1)f(to)g |
| (obtain)g(a)g(stipple)120 399 y(pattern)f(of)g(zeros)g(and)g(ones.)191 |
| 456 y(If)j Fy(x)265 463 y Fu(w)311 456 y FC(and)g Fy(y)424 |
| 463 y Fu(w)471 456 y FC(are)f(the)h(windo)o(w)g(co)q(ordinates)h(of)e |
| (a)h(rasterized)g(p)q(olygon)g(frag-)120 513 y(men)o(t,)e(then)g(that)g |
| (fragmen)o(t)f(is)h(sen)o(t)g(to)f(the)i(next)f(stage)f(of)h(the)g(GL)g |
| (if)g(and)h(only)f(if)120 569 y(the)g(bit)f(of)g(the)g(pattern)g(\()p |
| Fy(x)605 576 y Fu(w)646 569 y FC(mo)q(d)d(32)p Fy(;)c(y)834 |
| 576 y Fu(w)874 569 y FC(mo)q(d)13 b(32\))h(is)i(1.)191 |
| 627 y(P)o(olygon)f(stippling)j(ma)o(y)c(b)q(e)j(enabled)g(or)e |
| (disabled)i(with)f Fz(Enable)h FC(or)e Fz(Disable)120 |
| 683 y FC(using)20 b(the)g(constan)o(t)e Fr(POLYGON)p |
| 670 683 V 14 w(STIPPLE)p FC(.)f(When)j(disabled,)h(it)f(is)g(as)e(if)i |
| (the)f(stipple)120 739 y(pattern)c(w)o(ere)g(all)h(ones.)120 |
| 865 y Fl(3.5.3)56 b(An)n(tialiasing)120 952 y FC(P)o(olygon)14 |
| b(an)o(tialiasing)g(rasterizes)g(a)f(p)q(olygon)h(b)o(y)f(pro)q(ducing) |
| i(a)e(fragmen)o(t)g(wherev)o(er)120 1009 y(the)20 b(in)o(terior)g(of)f |
| (the)h(p)q(olygon)g(in)o(tersects)g(that)f(fragmen)o(t's)f(square.)33 |
| b(A)20 b(co)o(v)o(erage)120 1065 y(v)m(alue)12 b(is)f(computed)f(at)g |
| (eac)o(h)g(suc)o(h)h(fragmen)o(t,)f(and)g(this)h(v)m(alue)h(is)e(sa)o |
| (v)o(ed)g(to)g(b)q(e)h(applied)120 1122 y(as)j(describ)q(ed)i(in)f |
| (section)g(3.10.)j(An)d(asso)q(ciated)f(datum)g(is)h(assigned)g(to)e(a) |
| h(fragmen)o(t)120 1178 y(b)o(y)k(in)o(tegrating)f(the)h(datum's)f(v)m |
| (alue)i(o)o(v)o(er)e(the)g(region)h(of)f(the)h(in)o(tersection)g(of)g |
| (the)120 1235 y(fragmen)o(t)j(square)h(with)g(the)g(p)q(olygon's)h(in)o |
| (terior)f(and)g(dividing)i(this)f(in)o(tegrated)120 1291 |
| y(v)m(alue)c(b)o(y)e(the)g(area)g(of)g(the)g(in)o(tersection.)27 |
| b(F)l(or)17 b(a)g(fragmen)o(t)f(square)h(lying)i(en)o(tirely)120 |
| 1348 y(within)g(the)e(p)q(olygon,)g(the)g(v)m(alue)i(of)d(a)h(datum)g |
| (at)f(the)h(fragmen)o(t's)f(cen)o(ter)h(ma)o(y)f(b)q(e)120 |
| 1404 y(used)g(instead)g(of)f(in)o(tegrating)g(the)g(v)m(alue)i(across)d |
| (the)h(fragmen)o(t.)191 1461 y(P)o(olygon)d(stippling)i(op)q(erates)d |
| (in)i(the)f(same)g(w)o(a)o(y)f(whether)h(p)q(olygon)h(an)o(tialiasing) |
| 120 1518 y(is)j(enabled)g(or)e(not.)19 b(The)c(p)q(olygon)g(p)q(oin)o |
| (t)g(sampling)h(rule)f(de\014ned)h(in)g(section)f(3.5.1,)120 |
| 1574 y(ho)o(w)o(ev)o(er,)f(is)i(not)f(enforced)h(for)e(an)o(tialiased)i |
| (p)q(olygons.)120 1700 y Fl(3.5.4)56 b(Options)18 b(Con)n(trolling)g(P) |
| n(olygon)h(Rasterization)120 1787 y FC(The)d(in)o(terpretation)f(of)g |
| (p)q(olygons)h(for)e(rasterization)h(is)h(con)o(trolled)g(using)234 |
| 1883 y Fw(void)30 b Fz(P)o(olygonMo)q(de)p FC(\()g Fw(enum)14 |
| b Fv(fac)n(e)p Fw(,)h(enum)g Fv(mo)n(de)g FC(\))g Fw(;)120 |
| 1980 y Fv(fac)n(e)g FC(is)g(one)g(of)g Fr(FRONT)p FC(,)f |
| Fr(BACK)p FC(,)f(or)i Fr(FRONT)p 812 1980 V 14 w(AND)p |
| 892 1980 V 15 w(BACK)p FC(,)f(indicating)j(that)d(the)h(rasterizing)120 |
| 2037 y(metho)q(d)i(describ)q(ed)h(b)o(y)e Fv(mo)n(de)h |
| FC(replaces)g(the)f(rasterizing)h(metho)q(d)f(for)g(fron)o(t)f(facing) |
| 120 2093 y(p)q(olygons,)23 b(bac)o(k)e(facing)h(p)q(olygons,)g(or)f(b)q |
| (oth)g(fron)o(t)g(and)g(bac)o(k)g(facing)h(p)q(olygons,)120 |
| 2149 y(resp)q(ectiv)o(ely)l(.)36 b Fv(mo)n(de)20 b FC(is)g(one)g(of)f |
| (the)h(sym)o(b)q(olic)h(constan)o(ts)e Fr(POINT)p FC(,)f |
| Fr(LINE)p FC(,)h(or)g Fr(FILL)p FC(.)120 2206 y(Calling)g |
| Fz(P)o(olygonMo)q(de)f FC(with)g Fr(POINT)e FC(causes)i(certain)g(v)o |
| (ertices)g(of)f(a)g(p)q(olygon)h(to)120 2262 y(b)q(e)h(treated,)e(for)g |
| (rasterization)h(purp)q(oses,)g(just)g(as)f(if)h(they)g(w)o(ere)f |
| (enclosed)j(within)120 2319 y(a)15 b Fz(Begin)p FC(\()p |
| Fr(POINT)p FC(\))g(and)g Fz(End)h FC(pair.)21 b(The)15 |
| b(v)o(ertices)h(selected)g(for)f(this)h(treatmen)o(t)e(are)120 |
| 2375 y(those)i(that)f(ha)o(v)o(e)g(b)q(een)i(tagged)e(as)g(ha)o(ving)h |
| (a)f(p)q(olygon)h(b)q(oundary)h(edge)f(b)q(eginning)120 |
| 2432 y(on)f(them)g(\(see)h(section)f(2.6.2\).)j Fr(LINE)c |
| FC(causes)i(edges)f(that)f(are)h(tagged)g(as)f(b)q(oundary)120 |
| 2488 y(to)j(b)q(e)i(rasterized)f(as)f(line)i(segmen)o(ts.)27 |
| b(\(The)17 b(line)j(stipple)f(coun)o(ter)e(is)h(reset)g(at)f(the)p |
| eop |
| %%Page: 70 79 |
| 70 78 bop 332 137 a FC(70)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)332 286 y FC(b)q(eginning)16 b(of)e(the)g(\014rst)f |
| (rasterized)i(edge)f(of)f(the)h(p)q(olygon,)h(but)f(not)f(for)h |
| (subsequen)o(t)332 343 y(edges.\))21 b Fr(FILL)15 b FC(is)h(the)f |
| (default)h(mo)q(de)g(of)f(p)q(olygon)h(rasterization,)g(corresp)q |
| (onding)g(to)332 399 y(the)j(description)i(in)f(sections)g(3.5.1,)e |
| (3.5.2,)g(and)h(3.5.3.)31 b(Note)18 b(that)h(these)g(mo)q(des)332 |
| 456 y(a\013ect)i(only)h(the)f(\014nal)i(rasterization)e(of)g(p)q |
| (olygons:)33 b(in)22 b(particular,)h(a)e(p)q(olygon's)332 |
| 512 y(v)o(ertices)16 b(are)g(lit,)h(and)f(the)g(p)q(olygon)g(is)h |
| (clipp)q(ed)h(and)e(p)q(ossibly)i(culled)g(b)q(efore)e(these)332 |
| 569 y(mo)q(des)f(are)g(applied.)403 627 y(P)o(olygon)j(an)o(tialiasing) |
| i(applies)g(only)f(to)f(the)g Fr(FILL)g FC(state)g(of)g |
| Fz(P)o(olygonMo)q(de)p FC(.)332 683 y(F)l(or)h Fr(POINT)g |
| FC(or)h Fr(LINE)p FC(,)e(p)q(oin)o(t)j(an)o(tialiasing)g(or)e(line)j |
| (segmen)o(t)e(an)o(tialiasing,)h(resp)q(ec-)332 740 y(tiv)o(ely)l(,)16 |
| b(apply)l(.)332 871 y Fl(3.5.5)55 b(Depth)19 b(O\013set)332 |
| 960 y FC(The)12 b(depth)g(v)m(alues)g(of)f(all)h(fragmen)o(ts)f |
| (generated)g(b)o(y)g(the)h(rasterization)f(of)g(a)g(p)q(olygon)332 |
| 1016 y(ma)o(y)20 b(b)q(e)h(o\013set)f(b)o(y)g(a)g(single)i(v)m(alue)g |
| (that)d(is)i(computed)g(for)f(that)g(p)q(olygon.)36 b(The)332 |
| 1073 y(function)16 b(that)f(determines)h(this)f(v)m(alue)i(is)f(sp)q |
| (eci\014ed)h(b)o(y)e(calling)446 1173 y Fw(void)29 b |
| Fz(P)o(olygonO\013set)p FC(\()h Fw(float)14 b Fv(factor)p |
| Fw(,)i(float)e Fv(units)h FC(\))g Fw(;)332 1274 y Fv(factor)i |
| FC(scales)g(the)f(maxim)o(um)g(depth)h(slop)q(e)g(of)f(the)g(p)q |
| (olygon,)h(and)f Fv(units)g FC(scales)h(an)332 1330 y(implemen)o |
| (tation)g(dep)q(enden)o(t)g(constan)o(t)e(that)g(relates)h(to)f(the)h |
| (usable)g(resolution)h(of)332 1387 y(the)f(depth)g(bu\013er.)21 |
| b(The)16 b(resulting)g(v)m(alues)h(are)e(summed)h(to)f(pro)q(duce)h |
| (the)g(p)q(olygon)332 1443 y(o\013set)e(v)m(alue.)21 |
| b(Both)15 b Fv(factor)h FC(and)g Fv(units)e FC(ma)o(y)h(b)q(e)h(either) |
| g(p)q(ositiv)o(e)g(or)e(negativ)o(e.)403 1501 y(The)h(maxim)o(um)g |
| (depth)h(slop)q(e)g Fy(m)f FC(of)g(a)g(triangle)h(is)811 |
| 1648 y Fy(m)c FC(=)911 1568 y Fi(s)p 953 1568 396 2 v |
| 21 x(\022)991 1617 y Fy(@)s(z)1039 1624 y Fu(w)p 988 |
| 1638 81 2 v 988 1679 a Fy(@)s(x)1041 1686 y Fu(w)1074 |
| 1589 y Fi(\023)1105 1599 y Fq(2)1134 1648 y FC(+)1180 |
| 1589 y Fi(\022)1216 1617 y Fy(@)s(z)1264 1624 y Fu(w)p |
| 1215 1638 78 2 v 1215 1679 a Fy(@)s(y)1264 1686 y Fu(w)1298 |
| 1589 y Fi(\023)1328 1599 y Fq(2)1733 1648 y FC(\(3.5\))332 |
| 1780 y(where)k(\()p Fy(x)508 1787 y Fu(w)535 1780 y Fy(;)8 |
| b(y)578 1787 y Fu(w)606 1780 y Fy(;)g(z)648 1787 y Fu(w)676 |
| 1780 y FC(\))15 b(is)g(a)g(p)q(oin)o(t)h(on)f(the)g(triangle.)21 |
| b Fy(m)15 b FC(ma)o(y)f(b)q(e)i(appro)o(ximated)f(as)811 |
| 1908 y Fy(m)e FC(=)g(max)1004 1849 y Fi(\032)1035 1847 |
| y(\014)1035 1872 y(\014)1035 1897 y(\014)1035 1922 y(\014)1056 |
| 1878 y Fy(@)s(z)1104 1885 y Fu(w)p 1054 1898 81 2 v 1054 |
| 1940 a Fy(@)s(x)1107 1947 y Fu(w)1140 1847 y Fi(\014)1140 |
| 1872 y(\014)1140 1897 y(\014)1140 1922 y(\014)1161 1908 |
| y Fy(;)1182 1847 y Fi(\014)1181 1872 y(\014)1181 1897 |
| y(\014)1181 1922 y(\014)1201 1878 y Fy(@)s(z)1249 1885 |
| y Fu(w)p 1200 1898 78 2 v 1200 1940 a Fy(@)s(y)1249 1947 |
| y Fu(w)1282 1847 y Fi(\014)1282 1872 y(\014)1282 1897 |
| y(\014)1282 1922 y(\014)1296 1849 y(\033)1335 1908 y |
| Fy(:)385 b FC(\(3.6\))332 2035 y(If)13 b(the)g(p)q(olygon)g(has)g(more) |
| f(than)h(three)g(v)o(ertices,)g(one)g(or)f(more)h(v)m(alues)h(of)e |
| Fy(m)h FC(ma)o(y)f(b)q(e)332 2091 y(used)h(during)h(rasterization.)19 |
| b(Eac)o(h)12 b(ma)o(y)g(tak)o(e)g(an)o(y)h(v)m(alue)h(in)f(the)g(range) |
| f([)p Fy(min)p FC(,)p Fy(max)p FC(],)332 2148 y(where)h |
| Fy(min)f FC(and)g Fy(max)g FC(are)g(the)g(smallest)h(and)f(largest)g(v) |
| m(alues)i(obtained)f(b)o(y)f(ev)m(aluat-)332 2204 y(ing)i(Equation)f |
| (3.5)f(or)g(Equation)h(3.6)f(for)h(the)g(triangles)g(formed)g(b)o(y)g |
| (all)h(three-v)o(ertex)332 2261 y(com)o(binations.)403 |
| 2319 y(The)i(minim)o(um)h(resolv)m(able)h(di\013erence)f |
| Fy(r)g FC(is)f(an)g(implemen)o(tation)i(constan)o(t.)j(It)332 |
| 2375 y(is)c(the)g(smallest)g(di\013erence)g(in)h(windo)o(w)e(co)q |
| (ordinate)h Fy(z)i FC(v)m(alues)e(that)f(is)h(guaran)o(teed)332 |
| 2432 y(to)12 b(remain)h(distinct)h(throughout)e(p)q(olygon)h |
| (rasterization)g(and)f(in)i(the)f(depth)g(bu\013er.)332 |
| 2488 y(All)18 b(pairs)g(of)e(fragmen)o(ts)g(generated)h(b)o(y)g(the)g |
| (rasterization)g(of)f(t)o(w)o(o)g(p)q(olygons)h(with)p |
| eop |
| %%Page: 71 80 |
| 71 79 bop 120 137 a Fx(3.6.)34 b(PIXEL)16 b(RECT)l(ANGLES)873 |
| b FC(71)120 286 y(otherwise)14 b(iden)o(tical)h(v)o(ertices,)f(but)g |
| Fy(z)781 293 y Fu(w)823 286 y FC(v)m(alues)g(that)f(di\013er)h(b)o(y)f |
| Fy(r)q FC(,)g(will)i(ha)o(v)o(e)f(distinct)120 343 y(depth)i(v)m |
| (alues.)191 400 y(The)f(o\013set)g(v)m(alue)h Fy(o)f |
| FC(for)g(a)g(p)q(olygon)g(is)600 505 y Fy(o)d FC(=)h |
| Fy(m)d FB(\003)g Fy(f)5 b(actor)11 b FC(+)g Fy(r)f FB(\003)g |
| Fy(units)q(:)385 b FC(\(3.7\))120 610 y Fy(m)12 b FC(is)h(computed)g |
| (as)e(describ)q(ed)j(ab)q(o)o(v)o(e,)e(as)g(a)g(function)h(of)f(depth)h |
| (v)m(alues)g(in)g(the)f(range)120 666 y([0,1],)h(and)j |
| Fy(o)f FC(is)h(applied)h(to)d(depth)i(v)m(alues)h(in)f(the)f(same)g |
| (range.)191 723 y(Bo)q(olean)25 b(state)f(v)m(alues)i |
| Fr(POLYGON)p 798 723 14 2 v 15 w(OFFSET)p 945 723 V 14 |
| w(POINT)p FC(,)d Fr(POLYGON)p 1259 723 V 15 w(OFFSET)p |
| 1406 723 V 14 w(LINE)p FC(,)h(and)120 780 y Fr(POLYGON)p |
| 277 780 V 15 w(OFFSET)p 424 780 V 14 w(FILL)c FC(determine)h(whether)g |
| Fy(o)f FC(is)h(applied)h(during)f(the)g(rasteriza-)120 |
| 836 y(tion)c(of)g(p)q(olygons)g(in)h Fr(POINT)p FC(,)d |
| Fr(LINE)p FC(,)g(and)i Fr(FILL)f FC(mo)q(des.)25 b(These)17 |
| b(b)q(o)q(olean)h(state)e(v)m(al-)120 893 y(ues)g(are)e(enabled)j(and)e |
| (disabled)i(as)e(argumen)o(t)f(v)m(alues)i(to)f(the)g(commands)f |
| Fz(Enable)120 949 y FC(and)k Fz(Disable)p FC(.)28 b(If)18 |
| b Fr(POLYGON)p 624 949 V 14 w(OFFSET)p 770 949 V 15 w(POINT)e |
| FC(is)i(enabled,)i Fy(o)d FC(is)h(added)h(to)d(the)i(depth)120 |
| 1006 y(v)m(alue)f(of)e(eac)o(h)h(fragmen)o(t)e(pro)q(duced)j(b)o(y)f |
| (the)f(rasterization)h(of)f(a)g(p)q(olygon)h(in)h Fr(POINT)120 |
| 1062 y FC(mo)q(de.)j(Lik)o(ewise,)14 b(if)f Fr(POLYGON)p |
| 649 1062 V 14 w(OFFSET)p 795 1062 V 14 w(LINE)f FC(or)g |
| Fr(POLYGON)p 1116 1062 V 14 w(OFFSET)p 1262 1062 V 14 |
| w(FILL)g FC(is)h(enabled,)h Fy(o)120 1119 y FC(is)i(added)g(to)f(the)g |
| (depth)h(v)m(alue)g(of)f(eac)o(h)h(fragmen)o(t)e(pro)q(duced)i(b)o(y)f |
| (the)h(rasterization)120 1175 y(of)f(a)g(p)q(olygon)h(in)g |
| Fr(LINE)e FC(or)h Fr(FILL)f FC(mo)q(des,)h(resp)q(ectiv)o(ely)l(.)191 |
| 1232 y(F)l(ragmen)o(t)i(depth)i(v)m(alues)g(are)f(alw)o(a)o(ys)g |
| (limited)i(to)e(the)g(range)g([0,1],)f(either)i(b)o(y)120 |
| 1289 y(clamping)f(after)e(o\013set)f(addition)i(is)g(p)q(erformed)g |
| (\(preferred\),)f(or)g(b)o(y)g(clamping)i(the)120 1345 |
| y(v)o(ertex)d(v)m(alues)h(used)g(in)g(the)g(rasterization)f(of)f(the)i |
| (p)q(olygon.)120 1472 y Fl(3.5.6)56 b(P)n(olygon)18 b(Rasterization)g |
| (State)120 1559 y FC(The)11 b(state)f(required)i(for)e(p)q(olygon)h |
| (rasterization)g(consists)g(of)f(a)h(p)q(olygon)g(stipple)h(pat-)120 |
| 1616 y(tern,)k(whether)h(stippling)h(is)e(enabled)i(or)d(disabled,)j |
| (the)e(curren)o(t)g(state)g(of)f(p)q(olygon)120 1672 |
| y(an)o(tialiasing)h(\(enabled)f(or)e(disabled\),)j(the)e(curren)o(t)g |
| (v)m(alues)h(of)f(the)g Fz(P)o(olygonMo)q(de)120 1729 |
| y FC(setting)i(for)f(eac)o(h)g(of)g(fron)o(t)g(and)h(bac)o(k)f(facing)h |
| (p)q(olygons,)f(whether)h(p)q(oin)o(t,)g(line,)h(and)120 |
| 1785 y(\014ll)k(mo)q(de)e(p)q(olygon)g(o\013sets)f(are)h(enabled)h(or)e |
| (disabled,)j(and)e(the)g(factor)f(and)h(bias)120 1842 |
| y(v)m(alues)d(of)e(the)h(p)q(olygon)g(o\013set)f(equation.)20 |
| b(The)15 b(initial)h(stipple)g(pattern)e(is)i(all)f(ones;)120 |
| 1898 y(initially)21 b(stippling)e(is)g(disabled.)29 b(The)17 |
| b(initial)j(setting)e(of)f(p)q(olygon)h(an)o(tialiasing)h(is)120 |
| 1955 y(disabled.)35 b(The)20 b(initial)h(state)e(for)g |
| Fz(P)o(olygonMo)q(de)g FC(is)h Fr(FILL)f FC(for)f(b)q(oth)i(fron)o(t)f |
| (and)120 2011 y(bac)o(k)e(facing)h(p)q(olygons.)25 b(The)18 |
| b(initial)h(p)q(olygon)e(o\013set)f(factor)g(and)h(bias)h(v)m(alues)g |
| (are)120 2068 y(b)q(oth)e(0;)e(initially)k(p)q(olygon)e(o\013set)e(is)i |
| (disabled)h(for)d(all)i(mo)q(des.)120 2216 y Fs(3.6)67 |
| b(Pixel)23 b(Rectangles)120 2319 y FC(Rectangles)e(of)e(color,)h |
| (depth,)g(and)g(certain)g(other)f(v)m(alues)h(ma)o(y)f(b)q(e)h(con)o(v) |
| o(erted)f(to)120 2375 y(fragmen)o(ts)e(using)h(the)g |
| Fz(Dra)o(wPixels)f FC(command.)27 b(Some)18 b(of)f(the)h(parameters)f |
| (and)120 2432 y(op)q(erations)j(go)o(v)o(erning)g(the)f(op)q(eration)h |
| (of)f Fz(Dra)o(wPixels)g FC(are)g(shared)h(b)o(y)g Fz(Read-)120 |
| 2488 y(Pixels)14 b FC(\(used)h(to)e(obtain)h(pixel)i(v)m(alues)f(from)e |
| (the)h(framebu\013er\))g(and)g Fz(Cop)o(yPixels)p eop |
| %%Page: 72 81 |
| 72 80 bop 332 137 a FC(72)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)p 468 242 1223 2 v 467 299 2 57 v |
| 515 282 a FC(P)o(arameter)13 b(Name)p 897 299 V 98 w(T)o(yp)q(e)p |
| 1101 299 V 76 w(Initial)k(V)l(alue)p 1397 299 V 51 w(V)l(alid)f(Range)p |
| 1690 299 V 468 301 1223 2 v 468 309 V 467 365 2 57 v |
| 504 348 a Fr(UNPACK)p 639 348 14 2 v 14 w(SWAP)p 741 |
| 348 V 15 w(BYTES)p 897 365 2 57 v 60 w FC(b)q(o)q(olean)p |
| 1101 365 V 119 w Fr(FALSE)p 1397 365 V 130 w(TRUE)p FC(/)p |
| Fr(FALSE)p 1690 365 V 468 367 1223 2 v 467 423 2 57 v |
| 515 406 a(UNPACK)p 650 406 14 2 v 14 w(LSB)p 730 406 |
| V 15 w(FIRST)p 897 423 2 57 v 71 w FC(b)q(o)q(olean)p |
| 1101 423 V 119 w Fr(FALSE)p 1397 423 V 130 w(TRUE)p FC(/)p |
| Fr(FALSE)p 1690 423 V 468 425 1223 2 v 467 482 2 57 v |
| 504 465 a(UNPACK)p 639 465 14 2 v 14 w(ROW)p 719 465 |
| V 15 w(LENGTH)p 897 482 2 57 v 69 w FC(in)o(teger)p 1101 |
| 482 V 171 w(0)p 1397 482 V 224 w([0)p Fy(;)8 b FB(1)p |
| FC(\))p 1690 482 V 468 483 1223 2 v 467 540 2 57 v 515 |
| 523 a Fr(UNPACK)p 650 523 14 2 v 14 w(SKIP)p 752 523 |
| V 15 w(ROWS)p 897 540 2 57 v 80 w FC(in)o(teger)p 1101 |
| 540 V 171 w(0)p 1397 540 V 224 w([0)p Fy(;)g FB(1)p FC(\))p |
| 1690 540 V 468 541 1223 2 v 467 598 2 57 v 493 581 a |
| Fr(UNPACK)p 628 581 14 2 v 14 w(SKIP)p 730 581 V 15 w(PIXELS)p |
| 897 598 2 57 v 58 w FC(in)o(teger)p 1101 598 V 171 w(0)p |
| 1397 598 V 224 w([0)p Fy(;)g FB(1)p FC(\))p 1690 598 |
| V 468 599 1223 2 v 467 656 2 57 v 512 639 a Fr(UNPACK)p |
| 647 639 14 2 v 14 w(ALIGNMENT)p 897 656 2 57 v 76 w FC(in)o(teger)p |
| 1101 656 V 171 w(4)p 1397 656 V 219 w(1,2,4,8)p 1690 |
| 656 V 468 658 1223 2 v 454 735 a(T)l(able)16 b(3.1:)j |
| Fz(PixelStore)c FC(parameters)g(p)q(ertaining)h(to)f |
| Fz(Dra)o(wPixels)p FC(.)332 918 y(\(used)i(to)e(cop)o(y)h(pixels)i |
| (from)e(one)g(framebu\013er)g(lo)q(cation)h(to)e(another\);)h(the)g |
| (discus-)332 975 y(sion)f(of)f Fz(ReadPixels)h FC(and)f |
| Fz(Cop)o(yPixels)p FC(,)f(ho)o(w)o(ev)o(er,)h(is)g(deferred)h(un)o(til) |
| h(Chapter)e(4)332 1031 y(after)19 b(the)h(framebu\013er)f(has)h(b)q |
| (een)h(discussed)g(in)f(detail.)35 b(Nev)o(ertheless,)21 |
| b(w)o(e)f(note)332 1088 y(in)e(this)g(section)g(when)g(parameters)e |
| (and)i(state)e(p)q(ertaining)j(to)e Fz(Dra)o(wPixels)f |
| FC(also)332 1144 y(p)q(ertain)g(to)f Fz(ReadPixels)g |
| FC(or)g Fz(Cop)o(yPixels)p FC(.)403 1200 y(A)j(n)o(um)o(b)q(er)h(of)e |
| (parameters)h(con)o(trol)g(the)g(enco)q(ding)i(of)e(pixels)i(in)f |
| (clien)o(t)g(mem-)332 1257 y(ory)i(\(for)f(reading)i(and)g(writing\))g |
| (and)f(ho)o(w)g(pixels)i(are)e(pro)q(cessed)h(b)q(efore)g(b)q(eing)332 |
| 1313 y(placed)15 b(in)f(or)f(after)g(b)q(eing)i(read)e(from)g(the)h |
| (framebu\013er)f(\(for)f(reading,)i(writing,)g(and)332 |
| 1370 y(cop)o(ying\).)38 b(These)22 b(parameters)e(are)h(set)g(with)h |
| (three)f(commands:)32 b Fz(PixelStore)p FC(,)332 1426 |
| y Fz(PixelT)l(ransfer)p FC(,)14 b(and)i Fz(PixelMap)p |
| FC(.)332 1547 y Fl(3.6.1)55 b(Pixel)18 b(Storage)g(Mo)r(des)332 |
| 1633 y FC(Pixel)f(storage)e(mo)q(des)h(a\013ect)g(the)g(op)q(eration)g |
| (of)g Fz(Dra)o(wPixels)f FC(and)h Fz(ReadPixels)332 1689 |
| y FC(\(as)i(w)o(ell)i(as)e(other)g(commands;)i(see)f(sections)g(3.5.2,) |
| f(3.7,)g(and)h(3.8\))e(when)i(one)g(of)332 1746 y(these)14 |
| b(commands)f(is)g(issued.)21 b(This)13 b(ma)o(y)g(di\013er)g(from)g |
| (the)g(time)h(that)e(the)i(command)332 1802 y(is)g(executed)g(if)g(the) |
| f(command)g(is)h(placed)g(in)g(a)f(displa)o(y)h(list)g(\(see)f(section) |
| h(5.4\).)k(Pixel)332 1859 y(storage)c(mo)q(des)h(are)g(set)g(with)446 |
| 1948 y Fw(void)29 b Fz(PixelStore)p FB(f)p Fz(if)p FB(g)p |
| FC(\()i Fw(enum)14 b Fv(pname)p Fw(,)h(T)g Fv(p)n(ar)n(am)h |
| FC(\))f Fw(;)332 2037 y Fv(pname)i FC(is)g(a)f(sym)o(b)q(olic)h |
| (constan)o(t)f(indicating)i(a)f(parameter)e(to)h(b)q(e)h(set,)f(and)h |
| Fv(p)n(ar)n(am)332 2093 y FC(is)e(the)f(v)m(alue)h(to)f(set)f(it)i(to.) |
| k(T)l(able)14 b(3.1)g(summarizes)g(the)g(pixel)i(storage)d(parameters,) |
| 332 2149 y(their)g(t)o(yp)q(es,)g(their)g(initial)i(v)m(alues,)f(and)f |
| (their)g(allo)o(w)o(able)h(ranges.)k(Setting)c(a)e(param-)332 |
| 2206 y(eter)18 b(to)g(a)g(v)m(alue)i(outside)e(the)h(giv)o(en)g(range)f |
| (results)g(in)i(the)e(error)g Fr(INVALID)p 1694 2206 |
| 14 2 v 14 w(VALUE)p FC(.)403 2319 y(The)k(v)o(ersion)h(of)f |
| Fz(PixelStore)h FC(that)f(tak)o(es)g(a)g(\015oating-p)q(oin)o(t)h(v)m |
| (alue)h(ma)o(y)e(b)q(e)332 2375 y(used)h(to)e(set)h(an)o(y)g(t)o(yp)q |
| (e)g(of)g(parameter;)i(if)f(the)f(parameter)g(is)g(b)q(o)q(olean,)j |
| (then)d(it)332 2432 y(is)e(set)g(to)f Fr(FALSE)f FC(if)i(the)g(passed)g |
| (v)m(alue)h(is)f(0)p Fy(:)p FC(0)f(and)h Fr(TRUE)e FC(otherwise,)j |
| (while)g(if)f(the)332 2488 y(parameter)g(is)h(an)f(in)o(teger,)h(then)g |
| (the)f(passed)h(v)m(alue)h(is)e(rounded)i(to)d(the)i(nearest)p |
| eop |
| %%Page: 73 82 |
| 73 81 bop 120 137 a Fx(3.6.)34 b(PIXEL)16 b(RECT)l(ANGLES)873 |
| b FC(73)p 278 242 1180 2 v 277 299 2 57 v 303 282 a(P)o(arameter)14 |
| b(Name)p 664 299 V 75 w(T)o(yp)q(e)p 868 299 V 76 w(Initial)j(V)l(alue) |
| p 1164 299 V 51 w(V)l(alid)g(Range)p 1456 299 V 278 301 |
| 1180 2 v 278 309 V 277 365 2 57 v 376 348 a Fr(MAP)p |
| 445 348 14 2 v 15 w(COLOR)p 664 365 2 57 v 122 w FC(b)q(o)q(olean)p |
| 868 365 V 120 w Fr(FALSE)p 1164 365 V 129 w(TRUE)p FC(/)p |
| Fr(FALSE)p 1456 365 V 278 367 1180 2 v 277 423 2 57 v |
| 354 406 a(MAP)p 423 406 14 2 v 15 w(STENCIL)p 664 423 |
| 2 57 v 100 w FC(b)q(o)q(olean)p 868 423 V 120 w Fr(FALSE)p |
| 1164 423 V 129 w(TRUE)p FC(/)p Fr(FALSE)p 1456 423 V |
| 278 425 1180 2 v 277 482 2 57 v 354 465 a(INDEX)p 467 |
| 465 14 2 v 15 w(SHIFT)p 664 482 2 57 v 110 w FC(in)o(teger)p |
| 868 482 V 171 w(0)p 1164 482 V 192 w(\()p FB(\0001)p |
| Fy(;)8 b FB(1)p FC(\))p 1456 482 V 278 483 1180 2 v 277 |
| 540 2 57 v 343 523 a Fr(INDEX)p 456 523 14 2 v 15 w(OFFSET)p |
| 664 540 2 57 v 99 w FC(in)o(teger)p 868 540 V 171 w(0)p |
| 1164 540 V 192 w(\()p FB(\0001)p Fy(;)g FB(1)p FC(\))p |
| 1456 540 V 278 541 1180 2 v 277 598 2 57 v 376 581 a |
| Fr(RED)p 445 581 14 2 v 15 w(SCALE)p 664 598 2 57 v 155 |
| w FC(\015oat)p 868 598 V 176 w(1.0)p 1164 598 V 174 w(\()p |
| FB(\0001)p Fy(;)g FB(1)p FC(\))p 1456 598 V 278 599 1180 |
| 2 v 277 656 2 57 v 354 639 a Fr(GREEN)p 467 639 14 2 |
| v 15 w(SCALE)p 664 656 2 57 v 133 w FC(\015oat)p 868 |
| 656 V 176 w(1.0)p 1164 656 V 174 w(\()p FB(\0001)p Fy(;)g |
| FB(1)p FC(\))p 1456 656 V 278 658 1180 2 v 277 714 2 |
| 57 v 365 697 a Fr(BLUE)p 456 697 14 2 v 15 w(SCALE)p |
| 664 714 2 57 v 144 w FC(\015oat)p 868 714 V 176 w(1.0)p |
| 1164 714 V 174 w(\()p FB(\0001)p Fy(;)g FB(1)p FC(\))p |
| 1456 714 V 278 716 1180 2 v 277 772 2 57 v 354 755 a |
| Fr(ALPHA)p 467 755 14 2 v 15 w(SCALE)p 664 772 2 57 v |
| 133 w FC(\015oat)p 868 772 V 176 w(1.0)p 1164 772 V 174 |
| w(\()p FB(\0001)p Fy(;)g FB(1)p FC(\))p 1456 772 V 278 |
| 774 1180 2 v 277 830 2 57 v 354 813 a Fr(DEPTH)p 467 |
| 813 14 2 v 15 w(SCALE)p 664 830 2 57 v 133 w FC(\015oat)p |
| 868 830 V 176 w(1.0)p 1164 830 V 174 w(\()p FB(\0001)p |
| Fy(;)g FB(1)p FC(\))p 1456 830 V 278 832 1180 2 v 277 |
| 888 2 57 v 387 871 a Fr(RED)p 456 871 14 2 v 15 w(BIAS)p |
| 664 888 2 57 v 166 w FC(\015oat)p 868 888 V 176 w(0.0)p |
| 1164 888 V 174 w(\()p FB(\0001)p Fy(;)g FB(1)p FC(\))p |
| 1456 888 V 278 890 1180 2 v 277 946 2 57 v 365 930 a |
| Fr(GREEN)p 478 930 14 2 v 15 w(BIAS)p 664 946 2 57 v |
| 144 w FC(\015oat)p 868 946 V 176 w(0.0)p 1164 946 V 174 |
| w(\()p FB(\0001)p Fy(;)g FB(1)p FC(\))p 1456 946 V 278 |
| 948 1180 2 v 277 1005 2 57 v 376 988 a Fr(BLUE)p 467 |
| 988 14 2 v 15 w(BIAS)p 664 1005 2 57 v 155 w FC(\015oat)p |
| 868 1005 V 176 w(0.0)p 1164 1005 V 174 w(\()p FB(\0001)p |
| Fy(;)g FB(1)p FC(\))p 1456 1005 V 278 1006 1180 2 v 277 |
| 1063 2 57 v 365 1046 a Fr(ALPHA)p 478 1046 14 2 v 15 |
| w(BIAS)p 664 1063 2 57 v 144 w FC(\015oat)p 868 1063 |
| V 176 w(0.0)p 1164 1063 V 174 w(\()p FB(\0001)p Fy(;)g |
| FB(1)p FC(\))p 1456 1063 V 278 1064 1180 2 v 277 1121 |
| 2 57 v 365 1104 a Fr(DEPTH)p 478 1104 14 2 v 15 w(BIAS)p |
| 664 1121 2 57 v 144 w FC(\015oat)p 868 1121 V 176 w(0.0)p |
| 1164 1121 V 174 w(\()p FB(\0001)p Fy(;)g FB(1)p FC(\))p |
| 1456 1121 V 278 1122 1180 2 v 482 1200 a(T)l(able)16 |
| b(3.2:)j Fz(PixelT)l(ransfer)c FC(parameters.)120 1390 |
| y(in)o(teger.)28 b(The)18 b(in)o(teger)g(v)o(ersion)g(of)f(the)h |
| (command)g(ma)o(y)f(also)h(b)q(e)g(used)g(to)g(set)f(an)o(y)120 |
| 1447 y(t)o(yp)q(e)e(of)g(parameter;)f(if)h(the)g(parameter)f(is)h(b)q |
| (o)q(olean,)h(then)f(it)g(is)h(set)e(to)h Fr(FALSE)e |
| FC(if)j(the)120 1503 y(passed)j(v)m(alue)g(is)g(0)f(and)g |
| Fr(TRUE)f FC(otherwise,)i(while)h(if)e(the)h(parameter)e(is)i(a)f |
| (\015oating-)120 1560 y(p)q(oin)o(t)e(v)m(alue,)g(then)g(the)f(passed)g |
| (v)m(alue)i(is)f(con)o(v)o(erted)e(to)h(\015oating-p)q(oin)o(t.)120 |
| 1691 y Fl(3.6.2)56 b(Pixel)17 b(T)-5 b(ransfer)19 b(Mo)r(des)120 |
| 1780 y FC(Pixel)13 b(transfer)e(mo)q(des)h(a\013ect)g(the)f(op)q |
| (eration)h(of)g Fz(Dra)o(wPixels)p FC(,)f Fz(ReadPixels)p |
| FC(,)i(and)120 1836 y Fz(Cop)o(yPixels)k FC(at)g(the)g(time)h(when)g |
| (one)f(of)g(these)h(commands)f(is)h(executed)g(\(whic)o(h)120 |
| 1892 y(ma)o(y)12 b(di\013er)g(from)f(the)h(time)h(the)f(command)g(is)g |
| (issued\).)20 b(Some)12 b(pixel)h(transfer)f(mo)q(des)120 |
| 1949 y(are)j(set)g(with)234 2049 y Fw(void)30 b Fz(PixelT)l(ransfer)p |
| FB(f)p Fz(if)p FB(g)p FC(\()f Fw(enum)15 b Fv(p)n(ar)n(am)p |
| Fw(,)g(T)g Fv(value)g FC(\))g Fw(;)120 2149 y Fv(p)n(ar)n(am)h |
| FC(is)f(a)g(sym)o(b)q(olic)i(constan)o(t)d(indicating)j(a)e(parameter)f |
| (to)g(b)q(e)i(set,)f(and)g Fv(value)g FC(is)120 2206 |
| y(the)j(v)m(alue)h(to)e(set)g(it)h(to.)26 b(T)l(able)18 |
| b(3.2)f(summarizes)h(the)g(pixel)h(transfer)e(parameters)120 |
| 2262 y(that)e(are)g(set)g(with)g Fz(PixelT)l(ransfer)p |
| FC(,)f(their)i(t)o(yp)q(es,)f(their)h(initial)h(v)m(alues,)f(and)f |
| (their)120 2319 y(allo)o(w)o(able)20 b(ranges.)32 b(Setting)20 |
| b(a)f(parameter)f(to)h(a)g(v)m(alue)h(outside)g(the)f(giv)o(en)h(range) |
| 120 2375 y(results)15 b(in)h(the)e(error)g Fr(INVALID)p |
| 662 2375 14 2 v 14 w(VALUE)p FC(.)f(The)i(same)f(v)o(ersions)h(of)f |
| (the)h(command)f(exist)120 2432 y(as)19 b(for)e Fz(PixelStore)p |
| FC(,)j(and)e(the)h(same)f(rules)i(apply)f(to)f(accepting)h(and)g(con)o |
| (v)o(erting)120 2488 y(passed)d(v)m(alues)g(to)f(set)g(parameters.)p |
| eop |
| %%Page: 74 83 |
| 74 82 bop 332 137 a FC(74)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)p 385 242 1388 2 v 384 299 2 57 v |
| 463 282 a FC(Map)14 b(Name)p 759 299 V 768 299 V 133 |
| w(Address)p 1020 299 V 119 w(V)l(alue)p 1274 299 V 97 |
| w(Init.)21 b(Size)p 1507 299 V 51 w(Init.)g(V)l(alue)p |
| 1772 299 V 385 301 1388 2 v 385 309 V 384 365 2 57 v |
| 410 348 a Fr(PIXEL)p 523 348 14 2 v 15 w(MAP)p 604 348 |
| V 15 w(I)p 641 348 V 16 w(TO)p 701 348 V 15 w(I)p 759 |
| 365 2 57 v 768 365 V 73 w FC(color)15 b(idx)p 1020 365 |
| V 81 w(color)h(idx)p 1274 365 V 146 w(1)p 1507 365 V |
| 226 w(0)p 1772 365 V 385 367 1388 2 v 384 423 2 57 v |
| 410 406 a Fr(PIXEL)p 523 406 14 2 v 15 w(MAP)p 604 406 |
| V 15 w(S)p 641 406 V 16 w(TO)p 701 406 V 15 w(S)p 759 |
| 423 2 57 v 768 423 V 58 w FC(stencil)g(idx)p 1020 423 |
| V 51 w(stencil)h(idx)p 1274 423 V 131 w(1)p 1507 423 |
| V 226 w(0)p 1772 423 V 385 425 1388 2 v 384 482 2 57 |
| v 410 465 a Fr(PIXEL)p 523 465 14 2 v 15 w(MAP)p 604 |
| 465 V 15 w(I)p 641 465 V 16 w(TO)p 701 465 V 15 w(R)p |
| 759 482 2 57 v 768 482 V 73 w FC(color)e(idx)p 1020 482 |
| V 151 w(R)p 1274 482 V 216 w(1)p 1507 482 V 208 w(0.0)p |
| 1772 482 V 385 483 1388 2 v 384 540 2 57 v 410 523 a |
| Fr(PIXEL)p 523 523 14 2 v 15 w(MAP)p 604 523 V 15 w(I)p |
| 641 523 V 16 w(TO)p 701 523 V 15 w(G)p 759 540 2 57 v |
| 768 540 V 73 w FC(color)g(idx)p 1020 540 V 150 w(G)p |
| 1274 540 V 214 w(1)p 1507 540 V 208 w(0.0)p 1772 540 |
| V 385 541 1388 2 v 384 598 2 57 v 410 581 a Fr(PIXEL)p |
| 523 581 14 2 v 15 w(MAP)p 604 581 V 15 w(I)p 641 581 |
| V 16 w(TO)p 701 581 V 15 w(B)p 759 598 2 57 v 768 598 |
| V 73 w FC(color)g(idx)p 1020 598 V 152 w(B)p 1274 598 |
| V 216 w(1)p 1507 598 V 208 w(0.0)p 1772 598 V 385 599 |
| 1388 2 v 384 656 2 57 v 410 639 a Fr(PIXEL)p 523 639 |
| 14 2 v 15 w(MAP)p 604 639 V 15 w(I)p 641 639 V 16 w(TO)p |
| 701 639 V 15 w(A)p 759 656 2 57 v 768 656 V 73 w FC(color)g(idx)p |
| 1020 656 V 151 w(A)p 1274 656 V 215 w(1)p 1507 656 V |
| 208 w(0.0)p 1772 656 V 385 658 1388 2 v 384 714 2 57 |
| v 410 697 a Fr(PIXEL)p 523 697 14 2 v 15 w(MAP)p 604 |
| 697 V 15 w(R)p 641 697 V 16 w(TO)p 701 697 V 15 w(R)p |
| 759 714 2 57 v 768 714 V 143 w FC(R)p 1020 714 V 220 |
| w(R)p 1274 714 V 216 w(1)p 1507 714 V 208 w(0.0)p 1772 |
| 714 V 385 716 1388 2 v 384 772 2 57 v 410 755 a Fr(PIXEL)p |
| 523 755 14 2 v 15 w(MAP)p 604 755 V 15 w(G)p 641 755 |
| V 16 w(TO)p 701 755 V 15 w(G)p 759 772 2 57 v 768 772 |
| V 142 w FC(G)p 1020 772 V 217 w(G)p 1274 772 V 214 w(1)p |
| 1507 772 V 208 w(0.0)p 1772 772 V 385 774 1388 2 v 384 |
| 830 2 57 v 410 813 a Fr(PIXEL)p 523 813 14 2 v 15 w(MAP)p |
| 604 813 V 15 w(B)p 641 813 V 16 w(TO)p 701 813 V 15 w(B)p |
| 759 830 2 57 v 768 830 V 143 w FC(B)p 1020 830 V 222 |
| w(B)p 1274 830 V 216 w(1)p 1507 830 V 208 w(0.0)p 1772 |
| 830 V 385 832 1388 2 v 384 888 2 57 v 410 871 a Fr(PIXEL)p |
| 523 871 14 2 v 15 w(MAP)p 604 871 V 15 w(A)p 641 871 |
| V 16 w(TO)p 701 871 V 15 w(A)p 759 888 2 57 v 768 888 |
| V 142 w FC(A)p 1020 888 V 220 w(A)p 1274 888 V 215 w(1)p |
| 1507 888 V 208 w(0.0)p 1772 888 V 385 890 1388 2 v 737 |
| 967 a(T)l(able)h(3.3:)j Fz(PixelMap)d FC(parameters.)403 |
| 1188 y(The)k(other)f(pixel)j(transfer)d(mo)q(des)h(are)f(the)h(v)m |
| (arious)g(lo)q(okup)h(tables)f(used)h(b)o(y)332 1245 |
| y Fz(Dra)o(wPixels)p FC(,)14 b Fz(ReadPixels)p FC(,)h(and)h |
| Fz(Cop)o(yPixels)p FC(.)j(These)c(are)g(set)g(with)446 |
| 1406 y Fw(void)37 b Fz(PixelMap)p FB(f)p Fz(ui)22 b(us)f(f)p |
| FB(g)p Fz(v)p FC(\()37 b Fw(enum)18 b Fv(map)p Fw(,)i(sizei)e |
| Fv(size)p Fw(,)h(T)g Fv(*val-)514 1463 y(ues)c FC(\))g |
| Fw(;)332 1624 y Fv(map)i FC(is)g(a)g(sym)o(b)q(olic)g(map)g(name,)f |
| (indicating)j(the)d(map)h(to)f(set,)g Fv(size)f FC(indicates)j(the)332 |
| 1681 y(size)e(of)f(the)g(map,)g(and)g Fv(values)g FC(is)h(a)f(p)q(oin)o |
| (ter)g(to)g(an)g(arra)o(y)f(of)h Fv(size)f FC(map)h(v)m(alues.)403 |
| 1754 y(The)g(en)o(tries)h(of)f(a)g(table)h(ma)o(y)f(b)q(e)h(sp)q |
| (eci\014ed)h(using)g(one)e(of)g(three)h(t)o(yp)q(es:)k(single-)332 |
| 1811 y(precision)13 b(\015oating-p)q(oin)o(t,)g(unsigned)g(short)e(in)o |
| (teger,)h(or)f(unsigned)i(in)o(teger,)g(dep)q(end-)332 |
| 1867 y(ing)k(on)f(whic)o(h)h(of)f(the)g(three)g(v)o(ersions)g(of)g |
| Fz(PixelMap)g FC(is)h(called.)24 b(A)17 b(table)f(en)o(try)g(is)332 |
| 1924 y(con)o(v)o(erted)i(to)g(the)h(appropriate)f(t)o(yp)q(e)g(when)h |
| (it)g(is)g(sp)q(eci\014ed.)32 b(An)18 b(en)o(try)g(giving)i(a)332 |
| 1980 y(color)15 b(comp)q(onen)o(t)f(v)m(alue)i(is)f(con)o(v)o(erted)f |
| (according)h(to)f(T)l(able)h(2.6.)k(An)14 b(en)o(try)h(giving)332 |
| 2037 y(a)g(color)g(index)h(v)m(alue)g(is)f(con)o(v)o(erted)g(from)f(an) |
| h(unsigned)h(short)f(in)o(teger)g(or)f(unsigned)332 2093 |
| y(in)o(teger)j(to)e(\015oating-p)q(oin)o(t.)24 b(An)16 |
| b(en)o(try)g(giving)h(a)f(stencil)i(index)f(is)g(con)o(v)o(erted)f |
| (from)332 2149 y(single-precision)f(\015oating-p)q(oin)o(t)e(to)e(an)h |
| (in)o(teger)g(b)o(y)g(rounding)h(to)f(nearest.)18 b(The)12 |
| b(v)m(ar-)332 2206 y(ious)18 b(tables)g(and)f(their)h(initial)h(sizes)f |
| (and)g(en)o(tries)g(are)f(summarized)h(in)g(T)l(able)g(3.3.)332 |
| 2262 y(A)d(table)h(that)e(tak)o(es)h(an)g(index)h(as)f(an)g(address)g |
| (m)o(ust)f(ha)o(v)o(e)h Fy(siz)r(e)e FC(=)g(2)1558 2246 |
| y Fu(n)1596 2262 y FC(or)i(the)g(error)332 2319 y Fr(INVALID)p |
| 489 2319 14 2 v 14 w(VALUE)h FC(results.)23 b(The)17 |
| b(maxim)o(um)f(allo)o(w)o(able)h Fv(size)e FC(of)h(eac)o(h)g(table)h |
| (is)g(imple-)332 2375 y(men)o(tation)h(dep)q(enden)o(t,)i(but)f(m)o |
| (ust)f(b)q(e)h(at)e(least)i(32)e(\(a)h(single)i(maxim)o(um)e(applies) |
| 332 2432 y(to)c(all)i(tables\).)j(The)c(error)f Fr(INVALID)p |
| 977 2432 V 15 w(VALUE)f FC(is)i(generated)g(if)g(a)g |
| Fv(size)e FC(larger)i(than)f(the)332 2488 y(implemen)o(ted)j(maxim)o |
| (um,)e(or)f(less)i(than)f(one,)g(is)h(giv)o(en)g(to)e |
| Fz(PixelMap)p FC(.)p eop |
| %%Page: 75 84 |
| 75 83 bop 120 137 a Fx(3.6.)34 b(PIXEL)16 b(RECT)l(ANGLES)873 |
| b FC(75)120 286 y Fl(3.6.3)56 b(Rasterization)17 b(of)i(Pixel)e |
| (Rectangles)120 375 y FC(The)j(pro)q(cess)f(of)g(dra)o(wing)g(pixels)i |
| (enco)q(ded)f(in)g(host)f(memory)f(is)i(diagrammed)f(in)120 |
| 431 y(Figure)14 b(3.7.)k(W)l(e)13 b(describ)q(e)i(the)f(stages)e(of)h |
| (this)h(pro)q(cess)f(in)h(the)f(order)g(in)i(whic)o(h)f(they)120 |
| 488 y(o)q(ccur.)191 546 y(Pixels)i(are)f(dra)o(wn)g(using)234 |
| 645 y Fw(void)29 b Fz(Dra)o(wPixels)p FC(\()g Fw(sizei)14 |
| b Fv(width)p Fw(,)h(sizei)f Fv(height)p Fw(,)h(enum)f |
| Fv(format)p Fw(,)302 702 y(enum)h Fv(typ)n(e)p Fw(,)g(void)f |
| Fv(*data)j FC(\))d Fw(;)120 801 y Fv(format)j FC(is)f(a)g(sym)o(b)q |
| (olic)h(constan)o(t)e(indicating)j(what)d(the)h(v)m(alues)h(in)g |
| (memory)e(repre-)120 857 y(sen)o(t.)28 b Fv(width)18 |
| b FC(and)g Fv(height)g FC(are)f(the)h(width)h(and)f(heigh)o(t,)g(resp)q |
| (ectiv)o(ely)l(,)i(of)d(the)h(pixel)120 914 y(rectangle)h(to)f(b)q(e)h |
| (dra)o(wn.)30 b Fv(data)19 b FC(is)g(a)f(p)q(oin)o(ter)h(to)f(the)h |
| (data)f(to)g(b)q(e)h(dra)o(wn.)29 b(These)120 970 y(data)20 |
| b(are)g(represen)o(ted)g(with)g(one)h(of)e(sev)o(en)i(GL)f(data)f(t)o |
| (yp)q(es,)i(sp)q(eci\014ed)h(b)o(y)e Fv(typ)n(e)p FC(.)120 |
| 1027 y(The)f(corresp)q(ondence)g(b)q(et)o(w)o(een)f(the)g(eigh)o(t)g |
| Fv(typ)n(e)g FC(tok)o(en)f(v)m(alues)i(and)f(the)g(GL)g(data)120 |
| 1083 y(t)o(yp)q(es)f(they)g(indicate)h(is)f(giv)o(en)g(in)h(T)l(able)f |
| (3.4.)23 b(If)17 b(the)g(GL)f(is)h(in)h(color)f(index)g(mo)q(de)120 |
| 1140 y(and)j Fv(format)h FC(is)f(not)g(one)g(of)f Fr(COLOR)p |
| 758 1140 14 2 v 15 w(INDEX)p FC(,)f Fr(STENCIL)p 1068 |
| 1140 V 15 w(INDEX)p FC(,)g(or)h Fr(DEPTH)p 1394 1140 |
| V 15 w(COMPONENT)p FC(,)120 1196 y(then)c(the)f(error)f |
| Fr(INVALID)p 567 1196 V 14 w(OPERATION)f FC(o)q(ccurs.)20 |
| b(If)14 b Fv(typ)n(e)g FC(is)g Fr(BITMAP)f FC(and)h Fv(format)h |
| FC(is)f(not)120 1253 y Fr(COLOR)p 233 1253 V 15 w(INDEX)g |
| FC(or)h Fr(STENCIL)p 582 1253 V 14 w(INDEX)f FC(then)i(the)f(error)g |
| Fr(INVALID)p 1168 1253 V 14 w(ENUM)f FC(o)q(ccurs.)120 |
| 1381 y Fz(Unpac)o(king)120 1469 y FC(Data)f(are)g(tak)o(en)g(from)g |
| (host)g(memory)g(as)g(a)g(sequence)i(of)e(signed)h(or)f(unsigned)i(b)o |
| (ytes)120 1526 y(\(GL)d(data)e(t)o(yp)q(es)i Fw(byte)f |
| FC(and)g Fw(ubyte)p FC(\),)g(signed)h(or)f(unsigned)i(short)e(in)o |
| (tegers)g(\(GL)g(data)120 1582 y(t)o(yp)q(es)17 b Fw(short)f |
| FC(and)h Fw(ushort)p FC(\),)f(signed)h(or)g(unsigned)h(in)o(tegers)f |
| (\(GL)f(data)g(t)o(yp)q(es)h Fw(int)120 1639 y FC(and)g |
| Fw(uint)p FC(\),)e(or)h(\015oating)h(p)q(oin)o(t)g(v)m(alues)g(\(GL)f |
| (data)g(t)o(yp)q(e)h Fw(float)p FC(\).)22 b(These)17 |
| b(elemen)o(ts)120 1695 y(are)h(group)q(ed)h(in)o(to)f(sets)g(of)g(one,) |
| h(t)o(w)o(o,)e(three,)i(or)f(four)g(v)m(alues,)i(dep)q(ending)g(on)f |
| (the)120 1751 y Fv(format)p FC(,)13 b(to)f(form)f(groups.)18 |
| b(T)l(able)13 b(3.5)e(summarizes)h(the)g(format)f(of)g(groups)h |
| (obtained)120 1808 y(from)18 b(memory;)h(it)g(also)g(indicates)h(those) |
| e(formats)f(that)h(yield)i(indices)g(and)f(those)120 |
| 1864 y(that)c(yield)i(comp)q(onen)o(ts.)191 1922 y(By)12 |
| b(default)h(the)g(v)m(alues)g(of)f(eac)o(h)g(GL)g(data)g(t)o(yp)q(e)g |
| (are)g(in)o(terpreted)h(as)f(they)g(w)o(ould)120 1979 |
| y(b)q(e)i(sp)q(eci\014ed)i(in)e(the)f(language)h(of)f(the)g(clien)o |
| (t's)h(GL)g(binding.)21 b(If)13 b Fr(UNPACK)p 1391 1979 |
| V 15 w(SWAP)p 1494 1979 V 15 w(BYTES)120 2035 y FC(is)18 |
| b(enabled,)g(ho)o(w)o(ev)o(er,)f(then)g(the)g(v)m(alues)h(are)f(in)o |
| (terpreted)h(with)f(the)g(bit)g(orderings)120 2092 y(mo)q(di\014ed)e |
| (as)d(p)q(er)i(T)l(able)g(3.6.)k(The)13 b(mo)q(di\014ed)i(bit)e |
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| b(Because)17 b(the)f(pixel)h(transfer)e(op)q(era-)332 |
| 1497 y(tions)d(are)f(p)q(erformed)g(equiv)m(alen)o(tly)j(during)e(the)g |
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| y(pixels,)h(and)e(during)h(the)f(sp)q(eci\014cation)i(of)e(texture)g |
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| %%Page: 81 90 |
| 81 89 bop 120 137 a Fx(3.6.)34 b(PIXEL)16 b(RECT)l(ANGLES)873 |
| b FC(81)120 286 y Fz(Con)o(v)o(ersion)16 b(to)i(F)l(ragmen)o(ts)120 |
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| (is)i(con)o(trolled)g(with)234 463 y Fw(void)30 b Fz(PixelZo)q(om)p |
| FC(\()g Fw(float)15 b Fy(z)809 470 y Fu(x)831 463 y Fw(,)g(float)f |
| Fy(z)1025 470 y Fu(y)1061 463 y FC(\))h Fw(;)120 553 |
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| eop |
| %%Page: 82 91 |
| 82 90 bop 332 137 a FC(82)750 b Fx(CHAPTER)16 b(3.)34 |
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| %%Page: 83 92 |
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| Fy(;)d FB(b)p Fy(y)1242 2304 y Fu(r)q(p)1289 2297 y FB(\000)i |
| Fy(y)1356 2304 y Fu(bo)1391 2297 y FB(c)p FC(\))332 2375 |
| y(and)k(upp)q(er)h(righ)o(t)e(corner)g(at)g(\()p Fy(x)891 |
| 2382 y Fu(ll)922 2375 y FC(+)7 b Fy(w)q(;)h(y)1041 2382 |
| y Fu(ll)1071 2375 y FC(+)f Fy(h)p FC(\))14 b(where)g |
| Fy(w)g FC(and)g Fy(h)g FC(are)f(the)h(width)g(and)332 |
| 2432 y(heigh)o(t)j(of)g(the)g(bitmap,)g(resp)q(ectiv)o(ely)l(.)27 |
| b(F)l(ragmen)o(ts)16 b(in)i(the)f(arra)o(y)e(are)i(pro)q(duced)h(if)332 |
| 2488 y(the)f(corresp)q(onding)g(bit)g(in)g(the)f(bitmap)h(is)g(1)f(and) |
| g(not)g(pro)q(duced)i(otherwise.)23 b(The)p eop |
| %%Page: 85 94 |
| 85 93 bop 120 137 a Fx(3.8.)34 b(TEXTURING)1059 b FC(85)120 |
| 286 y(asso)q(ciated)11 b(data)e(for)h(eac)o(h)g(fragmen)o(t)f(are)h |
| (those)g(asso)q(ciated)h(with)f(the)h(curren)o(t)f(raster)120 |
| 343 y(p)q(osition,)j(with)f(texture)f(co)q(ordinates)h |
| Fy(s)p FC(,)g Fy(t)p FC(,)g(and)f Fy(r)h FC(replaced)h(with)f |
| Fy(s=q)r FC(,)f Fy(t=q)r FC(,)h(and)g Fy(r)q(=q)r FC(,)120 |
| 399 y(resp)q(ectiv)o(ely)l(.)21 b(If)12 b Fy(q)h FC(is)f(less)g(then)f |
| (or)g(equal)i(to)d(zero,)i(the)f(results)h(are)f(unde\014ned.)21 |
| b(Once)120 456 y(the)16 b(fragmen)o(ts)e(ha)o(v)o(e)g(b)q(een)j(pro)q |
| (duced,)f(the)f(curren)o(t)g(raster)f(p)q(osition)j(is)e(up)q(dated:) |
| 540 558 y(\()p Fy(x)584 565 y Fu(r)q(p)620 558 y Fy(;)8 |
| b(y)663 565 y Fu(r)q(p)699 558 y FC(\))13 b FB( )g FC(\()p |
| Fy(x)832 565 y Fu(r)q(p)878 558 y FC(+)e Fy(x)950 565 |
| y Fu(bi)979 558 y Fy(;)d(y)1022 565 y Fu(r)q(p)1068 558 |
| y FC(+)j Fy(y)1136 565 y Fu(bi)1165 558 y FC(\))p Fy(:)120 |
| 661 y FC(The)16 b Fy(z)h FC(and)e Fy(w)h FC(v)m(alues)h(of)e(the)g |
| (curren)o(t)g(raster)f(p)q(osition)i(remain)g(unc)o(hanged.)120 |
| 805 y Fs(3.8)67 b(T)-6 b(exturing)120 907 y FC(T)l(exturing)14 |
| b(maps)g(a)f(p)q(ortion)h(of)f(a)g(sp)q(eci\014ed)i(image)f(on)o(to)f |
| (eac)o(h)g(primitiv)o(e)i(for)e(whic)o(h)120 963 y(texturing)19 |
| b(is)g(enabled.)31 b(This)20 b(mapping)f(is)g(accomplished)h(b)o(y)f |
| (using)g(the)g(color)f(of)120 1020 y(an)h(image)g(at)f(the)h(lo)q |
| (cation)h(indicated)h(b)o(y)d(a)h(fragmen)o(t's)e(\()p |
| Fy(s;)8 b(t;)g(r)q FC(\))17 b(co)q(ordinates)i(to)120 |
| 1076 y(mo)q(dify)h(the)f(fragmen)o(t's)f(R)o(GBA)h(color)h(\()p |
| Fy(r)f FC(is)h(curren)o(tly)f(ignored\).)33 b(T)l(exturing)19 |
| b(is)120 1133 y(sp)q(eci\014ed)f(only)d(for)g(R)o(GBA)g(mo)q(de;)g(its) |
| h(use)f(in)h(color)g(index)g(mo)q(de)g(is)f(unde\014ned.)191 |
| 1189 y(The)k(GL)g(pro)o(vides)g(a)g(means)f(to)g(sp)q(ecify)i(the)f |
| (details)h(of)e(ho)o(w)h(texturing)g(of)f(a)120 1246 |
| y(primitiv)o(e)g(is)f(e\013ected.)24 b(These)17 b(details)g(include)i |
| (sp)q(eci\014cation)f(of)e(the)h(image)f(to)g(b)q(e)120 |
| 1302 y(texture)21 b(mapp)q(ed,)j(the)d(means)g(b)o(y)g(whic)o(h)h(the)g |
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| (primitiv)o(e,)h(and)f(the)f(function)h(that)f(determines)h(what)f(R)o |
| (GBA)h(v)m(alue)g(is)120 1415 y(pro)q(duced)17 b(giv)o(en)e(a)g |
| (fragmen)o(t)f(color)i(and)f(an)g(image)g(v)m(alue.)120 |
| 1536 y Fz(T)l(exture)i(Image)h(Sp)q(eci\014cation)120 |
| 1622 y FC(The)e(command)234 1716 y Fw(void)33 b Fz(T)l(exImage2D)p |
| FC(\()h Fw(enum)16 b Fv(tar)n(get)p Fw(,)h(int)g Fv(level)p |
| Fw(,)f(int)g Fv(internalfor-)302 1773 y(mat)p Fw(,)g(sizei)e |
| Fv(width)p Fw(,)i(sizei)f Fv(height)p Fw(,)g(int)g Fv(b)n(or)n(der)p |
| Fw(,)g(enum)f Fv(format)p Fw(,)302 1829 y(enum)h Fv(typ)n(e)p |
| Fw(,)g(void)f Fv(*data)j FC(\))d Fw(;)120 1924 y FC(is)19 |
| b(used)g(to)f(sp)q(ecify)i(a)e(t)o(w)o(o-dimensional)h(texture)g |
| (image.)29 b Fv(tar)n(get)19 b FC(m)o(ust)f(b)q(e)h(either)120 |
| 1980 y Fr(TEXTURE)p 277 1980 14 2 v 15 w(2D)p FC(,)10 |
| b(or)h Fr(PROXY)p 521 1980 V 15 w(TEXTURE)p 690 1980 |
| V 14 w(2D)g FC(in)i(the)e(sp)q(ecial)j(case)d(discussed)i(in)g(section) |
| f(3.8.3.)120 2037 y Fv(width)p FC(,)i Fv(height)p FC(,)f |
| Fv(format)p FC(,)h Fv(typ)n(e)p FC(,)f(and)g Fv(data)g |
| FC(corresp)q(ond)h(precisely)g(to)e(the)h(corresp)q(ond-)120 |
| 2093 y(ing)j(argumen)o(ts)f(to)f Fz(Dra)o(wPixels)h FC(\(refer)f(to)h |
| (section)h(3.6.3\);)d(they)i(sp)q(ecify)i(the)e(im-)120 |
| 2149 y(age's)10 b Fv(width)h FC(and)g Fv(height)p FC(,)h(a)e |
| Fv(format)h FC(of)f(the)h(image)g(data,)f(the)h Fv(typ)n(e)g |
| FC(of)f(those)g(data,)h(and)120 2206 y(a)17 b(p)q(oin)o(ter)g(to)g(the) |
| g(image)g(data)f(in)i(memory)l(.)25 b(The)17 b(image)g(is)h(tak)o(en)e |
| (from)g(memory)120 2262 y(exactly)g(as)g(if)g(these)g(argumen)o(ts)e(w) |
| o(ere)i(passed)f(to)g Fz(Dra)o(wPixels)p FC(,)g(but)h(the)f(pro)q(cess) |
| 120 2319 y(stops)h(just)f(b)q(efore)i(\014nal)f(con)o(v)o(ersion.)22 |
| b(Eac)o(h)16 b(R,)g(G,)f(B,)h(and)g(A)g(v)m(alue)h(so)f(generated)120 |
| 2375 y(is)j(clamp)q(ed)h(to)e([0)p Fy(;)8 b FC(1].)27 |
| b(\(The)19 b Fv(format)p FC(s)g Fr(STENCIL)p 985 2375 |
| V 14 w(INDEX)e FC(and)i Fr(DEPTH)p 1328 2375 V 15 w(COMPONENT)d |
| FC(are)120 2432 y(not)d(allo)o(w)o(ed.\))19 b(Comp)q(onen)o(ts)13 |
| b(are)f(then)i(selected)g(from)e(the)h(resulting)h(R,)f(G,)f(B,)h(and) |
| 120 2488 y(A)k(v)m(alues)g(to)f(obtain)g(a)h(texture)f(with)g(the)h |
| Fv(b)n(ase)f(internal)h(format)g FC(sp)q(eci\014ed)h(b)o(y)f(\(or)p |
| eop |
| %%Page: 86 95 |
| 86 94 bop 332 137 a FC(86)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)332 286 y FC(deriv)o(ed)18 b(from\))e |
| Fv(internalformat)p FC(.)25 b(T)l(able)17 b(3.7)f(summarizes)h(the)g |
| (mapping)h(of)e(R,)h(G,)332 343 y(B,)g(and)h(A)f(v)m(alues)i(to)e |
| (texture)g(comp)q(onen)o(ts,)g(as)g(a)g(function)i(of)e(the)g(base)h |
| (in)o(ternal)332 399 y(format)d(of)g(the)h(texture)g(image.)22 |
| b Fv(internalformat)16 b FC(ma)o(y)f(b)q(e)h(sp)q(eci\014ed)i(as)e(one) |
| g(of)f(the)332 456 y(six)g(base)f(in)o(ternal)h(format)e(sym)o(b)q |
| (olic)i(constan)o(ts)e(listed)j(in)e(T)l(able)h(3.7,)e(or)h(it)g(ma)o |
| (y)g(b)q(e)332 512 y(sp)q(eci\014ed)20 b(as)e(an)o(y)g(one)g(of)g(the)g |
| Fv(size)n(d)g(internal)h(format)g FC(sym)o(b)q(olic)g(constan)o(ts)e |
| (listed)332 569 y(in)i(T)l(able)h(3.8.)28 b(\(F)l(or)18 |
| b(compatibilit)o(y)i(with)f(the)f(1.0)g(v)o(ersion)g(of)g(the)h(GL,)f |
| Fv(internal-)332 625 y(format)d FC(v)m(alues)h Fr(1)p |
| FC(,)e Fr(2)p FC(,)g Fr(3)p FC(,)g(and)h Fr(4)f FC(are)g(equiv)m(alen)o |
| (t)j(to)c(sym)o(b)q(olic)j(constan)o(ts)e Fr(LUMINANCE)p |
| FC(,)332 682 y Fr(LUMINANCE)p 533 682 14 2 v 14 w(ALPHA)p |
| FC(,)i Fr(RGB)p FC(,)h(and)h Fr(RGBA)f FC(resp)q(ectiv)o(ely)l(.\))29 |
| b(Sp)q(ecifying)20 b(a)d(v)m(alue)i(for)f Fv(inter-)332 |
| 738 y(nalformat)g FC(that)f(is)h(not)f(a)g(base)h(in)o(ternal)g |
| (format,)f(a)g(sized)i(in)o(ternal)f(format,)f Fr(1)p |
| FC(,)g Fr(2)p FC(,)332 795 y Fr(3)p FC(,)i(or)f Fr(4)h |
| FC(generates)g(the)f(error)h Fr(INVALID)p 1044 795 V |
| 14 w(VALUE)p FC(.)e(\(F)l(or)h(compatibilit)o(y)i(with)g(the)e(1.0)332 |
| 851 y(v)o(ersion)e(of)e(the)i(GL,)e(parameter)h Fv(internalformat)g |
| FC(is)h(t)o(yp)q(e)f Fw(int)p FC(,)f(not)h(t)o(yp)q(e)g |
| Fw(enum)p FC(.\))403 907 y(The)21 b Fv(internal)g(c)n(omp)n(onent)g(r)n |
| (esolution)g FC(is)h(the)f(n)o(um)o(b)q(er)h(of)f(bits)h(allo)q(cated)g |
| (to)332 964 y(eac)o(h)d(v)m(alue)h(in)f(a)g(texture)f(image.)31 |
| b(If)18 b Fv(internalformat)h FC(is)g(sp)q(eci\014ed)i(as)d(a)h(base)f |
| (in-)332 1020 y(ternal)e(format,)e(the)h(GL)h(stores)f(the)g(resulting) |
| i(texture)e(with)h(in)o(ternal)g(comp)q(onen)o(t)332 |
| 1077 y(resolutions)j(of)e(its)h(o)o(wn)g(c)o(ho)q(osing.)28 |
| b(If)18 b(a)g(sized)h(in)o(ternal)g(format)e(is)h(sp)q(eci\014ed,)i |
| (the)332 1133 y(mapping)d(of)e(the)h(R,)g(G,)f(B,)h(and)g(A)g(v)m |
| (alues)h(to)f(texture)f(comp)q(onen)o(ts)h(is)h(equiv)m(alen)o(t)332 |
| 1190 y(to)e(the)g(mapping)h(of)f(the)g(corresp)q(onding)h(base)f(in)o |
| (ternal)h(format's)e(comp)q(onen)o(ts,)h(as)332 1246 |
| y(sp)q(eci\014ed)i(in)f(T)l(able)f(3.7,)f(and)h(the)g(memory)f(allo)q |
| (cation)i(p)q(er)f(texture)g(comp)q(onen)o(t)g(is)332 |
| 1303 y(assigned)g(b)o(y)e(the)h(GL)g(to)g(matc)o(h)f(the)h(allo)q |
| (cations)h(listed)g(in)g(T)l(able)f(3.8)f(as)h(closely)h(as)332 |
| 1359 y(p)q(ossible.)22 b(\(The)15 b(de\014nition)i(of)e(closely)i(is)e |
| (left)h(up)g(to)e(the)i(implemen)o(tation.)21 b(Imple-)332 |
| 1416 y(men)o(tations)d(are)g(not)f(required)i(to)f(supp)q(ort)g(more)g |
| (than)g(one)g(resolution)h(for)e(eac)o(h)332 1472 y(base)e(in)o(ternal) |
| h(format.\))403 1528 y(A)d(GL)f(implemen)o(tation)j(ma)o(y)d(v)m(ary)g |
| (its)h(allo)q(cation)h(of)f(in)o(ternal)g(comp)q(onen)o(t)g(res-)332 |
| 1585 y(olution)f(based)f(on)g(an)o(y)g Fz(T)l(exImage1D)f |
| FC(\(see)h(b)q(elo)o(w\))g(or)g Fz(T)l(exImage2D)f FC(parameter)332 |
| 1641 y(\(except)j Fv(tar)n(get)p FC(\),)g(but)g(the)g(allo)q(cation)h |
| (m)o(ust)e(not)g(b)q(e)i(a)f(function)g(of)g(an)o(y)f(other)h(state,) |
| 332 1698 y(and)g(cannot)f(b)q(e)i(c)o(hanged)f(once)g(it)g(is)g |
| (established.)21 b(Allo)q(cations)14 b(m)o(ust)e(b)q(e)h(in)o(v)m |
| (arian)o(t;)332 1754 y(the)20 b(same)f(allo)q(cation)h(m)o(ust)f(b)q(e) |
| h(made)g(eac)o(h)g(time)f(a)g(texture)h(image)f(is)h(sp)q(eci\014ed)332 |
| 1811 y(with)15 b(the)g(same)f(parameter)g(v)m(alues.)21 |
| b(These)15 b(allo)q(cation)h(rules)g(also)e(apply)i(to)e(pro)o(xy)332 |
| 1867 y(textures,)h(whic)o(h)h(are)f(describ)q(ed)i(in)f(section)f |
| (3.8.3.)403 1924 y(The)h(image)h(itself)g(\(p)q(oin)o(ted)g(to)f(b)o(y) |
| g Fv(data)p FC(\))h(is)g(a)f(sequence)i(of)e(groups)g(of)g(v)m(alues.) |
| 332 1980 y(The)j(\014rst)g(group)g(is)h(the)f(lo)o(w)o(er)g(left)g |
| (corner)g(of)g(the)g(texture)g(image.)31 b(Subsequen)o(t)332 |
| 2037 y(groups)13 b(\014ll)h(out)f(ro)o(ws)f(of)g(width)i |
| Fv(width)g FC(from)e(left)h(to)g(righ)o(t;)g Fv(height)g |
| FC(ro)o(ws)f(are)h(stac)o(k)o(ed)332 2093 y(from)18 b(b)q(ottom)h(to)f |
| (top.)32 b(Eac)o(h)18 b(color)i(comp)q(onen)o(t)f(is)h(con)o(v)o(erted) |
| e(\(b)o(y)h(rounding)h(to)332 2149 y(nearest\))e(to)g(a)g(\014xed-p)q |
| (oin)o(t)h(v)m(alue)h(with)e Fy(n)h FC(bits,)g(where)g |
| Fy(n)f FC(is)h(the)f(n)o(um)o(b)q(er)h(of)f(bits)332 |
| 2206 y(of)c(storage)f(allo)q(cated)j(to)e(that)f(comp)q(onen)o(t)i(in)g |
| (the)g(image)g(arra)o(y)l(.)j(W)l(e)d(assume)f(that)332 |
| 2262 y(the)h(\014xed-p)q(oin)o(t)i(represen)o(tation)e(used)h(represen) |
| o(ts)g(eac)o(h)f(v)m(alue)h Fy(k)q(=)p FC(\(2)1563 2246 |
| y Fu(n)1596 2262 y FB(\000)11 b FC(1\),)j(where)332 2319 |
| y Fy(k)j FB(2)e(f)p FC(0)p Fy(;)8 b FC(1)p Fy(;)g(:)g(:)f(:)t(;)h |
| FC(2)631 2302 y Fu(n)665 2319 y FB(\000)k FC(1)p FB(g)p |
| FC(,)k(as)g Fy(k)i FC(\(e.g.)24 b(1.0)16 b(is)i(represen)o(ted)f(in)h |
| (binary)f(as)g(a)f(string)h(of)332 2375 y(all)f(ones\).)403 |
| 2432 y(The)11 b Fv(level)g FC(argumen)o(t)f(to)h Fz(T)l(exImage2D)g |
| FC(is)h(an)f(in)o(teger)g Fv(level-of-detail)g FC(n)o(um)o(b)q(er.)332 |
| 2488 y(Lev)o(els)h(of)f(detail)h(are)f(discussed)h(b)q(elo)o(w,)h |
| (under)e Fz(Mipmapping)p FC(.)20 b(The)11 b(main)h(texture)p |
| eop |
| %%Page: 87 96 |
| 87 95 bop 120 137 a Fx(3.8.)34 b(TEXTURING)1059 b FC(87)p |
| 233 242 1270 2 v 232 299 2 57 v 258 282 a(Base)15 b(In)o(ternal)h(F)l |
| (ormat)p 707 299 V 48 w(R)o(GBA)g(V)l(alues)p 1035 299 |
| V 50 w(T)l(exture)g(Comp)q(onen)o(ts)p 1502 299 V 233 |
| 301 1270 2 v 233 309 V 232 365 2 57 v 258 348 a Fr(ALPHA)p |
| 707 365 V 364 w FC(A)p 1035 365 V 294 w Fy(A)p 1502 365 |
| V 233 367 1270 2 v 232 423 2 57 v 258 406 a Fr(LUMINANCE)p |
| 707 423 V 276 w FC(R)p 1035 423 V 295 w Fy(L)p 1502 423 |
| V 233 425 1270 2 v 232 482 2 57 v 258 465 a Fr(LUMINANCE)p |
| 459 465 14 2 v 14 w(ALPHA)p 707 482 2 57 v 152 w FC(R,A)p |
| 1035 482 V 248 w Fy(L)p FC(,)p Fy(A)p 1502 482 V 233 |
| 483 1270 2 v 232 540 2 57 v 258 523 a Fr(INTENSITY)p |
| 707 540 V 276 w FC(R)p 1035 540 V 295 w Fy(I)p 1502 540 |
| V 233 541 1270 2 v 232 598 2 57 v 258 581 a Fr(RGB)p |
| 707 598 V 408 w FC(R,G,B)p 1035 598 V 201 w Fy(R)p FC(,)p |
| Fy(G)p FC(,)p Fy(B)p 1502 598 V 233 599 1270 2 v 232 |
| 656 2 57 v 258 639 a Fr(RGBA)p 707 656 V 386 w FC(R,G,B,A)p |
| 1035 656 V 154 w Fy(R)p FC(,)p Fy(G)p FC(,)p Fy(B)r FC(,)p |
| Fy(A)p 1502 656 V 233 658 1270 2 v 120 735 a FC(T)l(able)i(3.7:)23 |
| b(Corresp)q(ondence)c(of)d(texture)h(comp)q(onen)o(ts)h(to)e(pixel)j |
| (group)e(R,)g(G,)g(B,)120 791 y(and)f(A)f(v)m(alues.)21 |
| b(See)16 b(section)f(3.8.5)f(for)g(a)h(description)i(of)e(the)g |
| (texture)g(comp)q(onen)o(ts)120 848 y Fy(R)p FC(,)g Fy(G)p |
| FC(,)g Fy(B)r FC(,)g Fy(A)p FC(,)g Fy(L)p FC(,)g(and)g |
| Fy(I)t FC(.)120 1052 y(image)h(has)g(a)f(lev)o(el)i(of)e(detail)i(n)o |
| (um)o(b)q(er)f(of)f(0.)21 b(If)16 b(a)g(lev)o(el-of-detail)i(less)e |
| (than)g(zero)f(is)120 1108 y(sp)q(eci\014ed,)i(the)f(error)e |
| Fr(INVALID)p 663 1108 14 2 v 14 w(VALUE)g FC(is)i(generated.)191 |
| 1173 y(The)i Fv(b)n(or)n(der)g FC(argumen)o(t)e(to)h |
| Fz(T)l(exImage2D)h FC(is)g(a)f(b)q(order)h(width.)28 |
| b(The)18 b(signi\014-)120 1229 y(cance)f(of)f(b)q(orders)g(is)h |
| (describ)q(ed)h(b)q(elo)o(w.)23 b(The)17 b(b)q(order)f(width)h |
| (a\013ects)e(the)i(required)120 1286 y(dimensions)k(of)d(the)h(texture) |
| f(image:)27 b(it)19 b(m)o(ust)f(b)q(e)h(the)g(case)g(that)f |
| Fy(w)1358 1293 y Fu(s)1394 1286 y FC(=)h(2)1471 1269 |
| y Fu(n)1506 1286 y FC(+)13 b(2)p Fy(b)1597 1293 y Fu(s)120 |
| 1342 y FC(and)18 b Fy(h)237 1349 y Fu(s)273 1342 y FC(=)f(2)348 |
| 1326 y Fu(m)392 1342 y FC(+)12 b(2)p Fy(b)482 1349 y |
| Fu(s)500 1342 y FC(,)18 b(where)g Fy(b)685 1349 y Fu(s)720 |
| 1342 y FC(is)h(the)e(sp)q(eci\014ed)j(\(non-negativ)o(e\))e(b)q(order)g |
| (width,)120 1399 y(and)c Fy(w)240 1406 y Fu(s)272 1399 |
| y FC(and)f Fy(h)384 1406 y Fu(s)417 1399 y FC(are)g(the)g(sp)q |
| (eci\014ed)j(image)e(width)g(and)g(heigh)o(t.)20 b(If)13 |
| b Fv(width)i FC(and)e Fv(height)120 1455 y FC(do)g(not)g(satisfy)f |
| (these)i(relationships,)g(then)f(the)g(error)g Fr(INVALID)p |
| 1234 1455 V 14 w(VALUE)f FC(is)h(generated.)120 1512 |
| y(Curren)o(tly)21 b(the)g(maxim)o(um)f(b)q(order)h(width)h |
| Fy(b)940 1519 y Fu(t)974 1512 y FC(is)g(1.)35 b(If)21 |
| b Fy(b)1168 1519 y Fu(s)1207 1512 y FC(is)g(less)g(than)g(zero,)g(or) |
| 120 1568 y(greater)15 b(than)g Fy(b)401 1575 y Fu(t)415 |
| 1568 y FC(,)g(then)g(the)h(error)e Fr(INVALID)p 893 1568 |
| V 14 w(VALUE)h FC(is)g(generated.)191 1633 y(The)k(maxim)o(um)f(allo)o |
| (w)o(able)i(width)f(or)f(heigh)o(t)h(of)f(an)g(image)h(is)g(an)g |
| (implemen-)120 1689 y(tation)f(dep)q(enden)o(t)i(function)g(of)e(the)g |
| (lev)o(el-of-detail)j(and)d(in)o(ternal)i(format)d(of)h(the)120 |
| 1746 y(resulting)h(image)f(arra)o(y)l(.)26 b(It)18 b(m)o(ust)f(b)q(e)h |
| (at)f(least)h(2)1005 1729 y Fu(k)q FG(\000)p Fu(lod)1111 |
| 1746 y FC(+)12 b(2)p Fy(b)1201 1753 y Fu(t)1233 1746 |
| y FC(for)17 b(image)h(arra)o(ys)e(of)120 1802 y(lev)o(el-of-detail)21 |
| b(0)e(through)f Fy(k)q FC(,)h(where)g Fy(k)g FC(is)g(the)g(log)g(base)f |
| (2)h(of)f Fr(MAX)p 1335 1802 V 15 w(TEXTURE)p 1504 1802 |
| V 14 w(SIZE)p FC(,)120 1859 y Fy(l)q(od)e FC(is)h(the)g(lev)o |
| (el-of-detail)i(of)e(the)f(image)h(arra)o(y)l(,)f(and)h |
| Fy(b)1113 1866 y Fu(t)1144 1859 y FC(is)g(the)g(maxim)o(um)f(b)q(order) |
| 120 1915 y(width.)21 b(It)14 b(ma)o(y)f(b)q(e)i(zero)f(for)g(image)g |
| (arra)o(ys)f(of)g(an)o(y)h(lev)o(el-of-detail)j(greater)c(than)h |
| Fy(k)q FC(.)120 1972 y(The)19 b(error)e Fr(INVALID)p |
| 488 1972 V 14 w(VALUE)g FC(is)h(generated)g(if)h(the)f(sp)q(eci\014ed)i |
| (image)e(is)g(to)q(o)f(large)h(to)120 2028 y(b)q(e)e(stored)f(under)h |
| (an)o(y)f(conditions.)22 b(Section)16 b(3.8.3)e(describ)q(es)j(a)e |
| (query)g(mec)o(hanism)120 2085 y(to)g(determine)h(the)g(maxim)o(um)f |
| (dimensions)i(of)e(a)f(texture)h(arra)o(y)f(of)h(a)g(sp)q(eci\014c)i |
| (lev)o(el)120 2141 y(of)h(detail)g(and)g(in)o(ternal)h(format.)26 |
| b(In)18 b(order)f(to)g(allo)o(w)h(the)g(clien)o(t)h(to)e(meaningfully) |
| 120 2198 y(query)g(the)g(maxim)o(um)f(image)h(arra)o(y)e(sizes)i(that)f |
| (are)g(supp)q(orted,)h(an)g(implemen)o(ta-)120 2254 y(tion)e(m)o(ust)f |
| (not)g(allo)o(w)g(an)h(image)f(arra)o(y)f(of)h(lev)o(el)i(one)f(or)e |
| (greater)h(to)g(b)q(e)h(created)f(if)h(a)120 2310 y Fv(c)n(omplete)i |
| FC(set)f(of)g(image)h(arra)o(ys)e(consisten)o(t)i(with)g(the)f |
| (requested)h(arra)o(y)f(could)h(not)120 2367 y(b)q(e)g(supp)q(orted.)24 |
| b(The)17 b(de\014nition)h(of)e(a)g(complete)h(set)f(of)g(image)g(arra)o |
| (ys)f(is)i(pro)o(vided)120 2423 y(b)q(elo)o(w,)f(under)g |
| Fz(Mipmapping)p FC(.)191 2488 y(Another)f(command,)p |
| eop |
| %%Page: 88 97 |
| 88 96 bop 332 137 a FC(88)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)p 332 280 1569 2 v 331 336 2 57 v |
| 357 319 a FC(Sized)p 789 336 V 356 w(Base)p 1160 336 |
| V 297 w Fy(R)p 1283 336 V 88 w(G)p 1406 336 V 86 w(B)p |
| 1530 336 V 91 w(A)p 1653 336 V 91 w(L)p 1776 336 V 96 |
| w(I)p 1899 336 V 331 393 V 357 376 a FC(In)o(ternal)16 |
| b(F)l(ormat)p 789 393 V 140 w(In)o(ternal)g(F)l(ormat)p |
| 1160 393 V 52 w(bits)p 1283 393 V 51 w(bits)p 1406 393 |
| V 50 w(bits)p 1530 393 V 50 w(bits)p 1653 393 V 51 w(bits)p |
| 1776 393 V 50 w(bits)p 1899 393 V 332 394 1569 2 v 332 |
| 403 V 331 459 2 57 v 357 442 a Fr(ALPHA4)p 789 459 V |
| 326 w(ALPHA)p 1160 459 V 1283 459 V 1406 459 V 1530 459 |
| V 656 w FC(4)p 1653 459 V 1776 459 V 1899 459 V 332 461 |
| 1569 2 v 331 517 2 57 v 357 500 a Fr(ALPHA8)p 789 517 |
| V 326 w(ALPHA)p 1160 517 V 1283 517 V 1406 517 V 1530 |
| 517 V 656 w FC(8)p 1653 517 V 1776 517 V 1899 517 V 332 |
| 519 1569 2 v 331 575 2 57 v 357 559 a Fr(ALPHA12)p 789 |
| 575 V 304 w(ALPHA)p 1160 575 V 1283 575 V 1406 575 V |
| 1530 575 V 644 w FC(12)p 1653 575 V 1776 575 V 1899 575 |
| V 332 577 1569 2 v 331 634 2 57 v 357 617 a Fr(ALPHA16)p |
| 789 634 V 304 w(ALPHA)p 1160 634 V 1283 634 V 1406 634 |
| V 1530 634 V 644 w FC(16)p 1653 634 V 1776 634 V 1899 |
| 634 V 332 635 1569 2 v 331 692 2 57 v 357 675 a Fr(LUMINANCE4)p |
| 789 692 V 238 w(LUMINANCE)p 1160 692 V 1283 692 V 1406 |
| 692 V 1530 692 V 1653 692 V 691 w FC(4)p 1776 692 V 1899 |
| 692 V 332 693 1569 2 v 331 750 2 57 v 357 733 a Fr(LUMINANCE8)p |
| 789 750 V 238 w(LUMINANCE)p 1160 750 V 1283 750 V 1406 |
| 750 V 1530 750 V 1653 750 V 691 w FC(8)p 1776 750 V 1899 |
| 750 V 332 751 1569 2 v 331 808 2 57 v 357 791 a Fr(LUMINANCE12)p |
| 789 808 V 216 w(LUMINANCE)p 1160 808 V 1283 808 V 1406 |
| 808 V 1530 808 V 1653 808 V 680 w FC(12)p 1776 808 V |
| 1899 808 V 332 810 1569 2 v 331 866 2 57 v 357 849 a |
| Fr(LUMINANCE16)p 789 866 V 216 w(LUMINANCE)p 1160 866 |
| V 1283 866 V 1406 866 V 1530 866 V 1653 866 V 680 w FC(16)p |
| 1776 866 V 1899 866 V 332 868 1569 2 v 331 924 2 57 v |
| 357 907 a Fr(LUMINANCE4)p 580 907 14 2 v 14 w(ALPHA4)p |
| 789 924 2 57 v 92 w(LUMINANCE)p 1016 907 14 2 v 14 w(ALPHA)p |
| 1160 924 2 57 v 1283 924 V 1406 924 V 1530 924 V 444 |
| w FC(4)p 1653 924 V 100 w(4)p 1776 924 V 1899 924 V 332 |
| 926 1569 2 v 331 982 2 57 v 357 965 a Fr(LUMINANCE6)p |
| 580 965 14 2 v 14 w(ALPHA2)p 789 982 2 57 v 92 w(LUMINANCE)p |
| 1016 965 14 2 v 14 w(ALPHA)p 1160 982 2 57 v 1283 982 |
| V 1406 982 V 1530 982 V 444 w FC(2)p 1653 982 V 100 w(6)p |
| 1776 982 V 1899 982 V 332 984 1569 2 v 331 1040 2 57 |
| v 357 1023 a Fr(LUMINANCE8)p 580 1023 14 2 v 14 w(ALPHA8)p |
| 789 1040 2 57 v 92 w(LUMINANCE)p 1016 1023 14 2 v 14 |
| w(ALPHA)p 1160 1040 2 57 v 1283 1040 V 1406 1040 V 1530 |
| 1040 V 444 w FC(8)p 1653 1040 V 100 w(8)p 1776 1040 V |
| 1899 1040 V 332 1042 1569 2 v 331 1099 2 57 v 357 1082 |
| a Fr(LUMINANCE12)p 602 1082 14 2 v 13 w(ALPHA4)p 789 |
| 1099 2 57 v 71 w(LUMINANCE)p 1016 1082 14 2 v 14 w(ALPHA)p |
| 1160 1099 2 57 v 1283 1099 V 1406 1099 V 1530 1099 V |
| 444 w FC(4)p 1653 1099 V 89 w(12)p 1776 1099 V 1899 1099 |
| V 332 1100 1569 2 v 331 1157 2 57 v 357 1140 a Fr(LUMINANCE12)p |
| 602 1140 14 2 v 13 w(ALPHA12)p 789 1157 2 57 v 49 w(LUMINANCE)p |
| 1016 1140 14 2 v 14 w(ALPHA)p 1160 1157 2 57 v 1283 1157 |
| V 1406 1157 V 1530 1157 V 432 w FC(12)p 1653 1157 V 78 |
| w(12)p 1776 1157 V 1899 1157 V 332 1158 1569 2 v 331 |
| 1215 2 57 v 357 1198 a Fr(LUMINANCE16)p 602 1198 14 2 |
| v 13 w(ALPHA16)p 789 1215 2 57 v 49 w(LUMINANCE)p 1016 |
| 1198 14 2 v 14 w(ALPHA)p 1160 1215 2 57 v 1283 1215 V |
| 1406 1215 V 1530 1215 V 432 w FC(16)p 1653 1215 V 78 |
| w(16)p 1776 1215 V 1899 1215 V 332 1216 1569 2 v 331 |
| 1273 2 57 v 357 1256 a Fr(INTENSITY4)p 789 1273 V 238 |
| w(INTENSITY)p 1160 1273 V 1283 1273 V 1406 1273 V 1530 |
| 1273 V 1653 1273 V 1776 1273 V 814 w FC(4)p 1899 1273 |
| V 332 1275 1569 2 v 331 1331 2 57 v 357 1314 a Fr(INTENSITY8)p |
| 789 1331 V 238 w(INTENSITY)p 1160 1331 V 1283 1331 V |
| 1406 1331 V 1530 1331 V 1653 1331 V 1776 1331 V 814 w |
| FC(8)p 1899 1331 V 332 1333 1569 2 v 331 1389 2 57 v |
| 357 1372 a Fr(INTENSITY12)p 789 1389 V 216 w(INTENSITY)p |
| 1160 1389 V 1283 1389 V 1406 1389 V 1530 1389 V 1653 |
| 1389 V 1776 1389 V 803 w FC(12)p 1899 1389 V 332 1391 |
| 1569 2 v 331 1447 2 57 v 357 1430 a Fr(INTENSITY16)p |
| 789 1447 V 216 w(INTENSITY)p 1160 1447 V 1283 1447 V |
| 1406 1447 V 1530 1447 V 1653 1447 V 1776 1447 V 803 w |
| FC(16)p 1899 1447 V 332 1449 1569 2 v 331 1505 2 57 v |
| 357 1488 a Fr(R3)p 404 1488 14 2 v 15 w(G3)p 463 1488 |
| V 16 w(B2)p 789 1505 2 57 v 295 w(RGB)p 1160 1505 V 330 |
| w FC(3)p 1283 1505 V 100 w(3)p 1406 1505 V 100 w(2)p |
| 1530 1505 V 1653 1505 V 1776 1505 V 1899 1505 V 332 1507 |
| 1569 2 v 331 1563 2 57 v 357 1547 a Fr(RGB4)p 789 1563 |
| V 370 w(RGB)p 1160 1563 V 330 w FC(4)p 1283 1563 V 100 |
| w(4)p 1406 1563 V 100 w(4)p 1530 1563 V 1653 1563 V 1776 |
| 1563 V 1899 1563 V 332 1565 1569 2 v 331 1622 2 57 v |
| 357 1605 a Fr(RGB5)p 789 1622 V 370 w(RGB)p 1160 1622 |
| V 330 w FC(5)p 1283 1622 V 100 w(5)p 1406 1622 V 100 |
| w(5)p 1530 1622 V 1653 1622 V 1776 1622 V 1899 1622 V |
| 332 1623 1569 2 v 331 1680 2 57 v 357 1663 a Fr(RGB8)p |
| 789 1680 V 370 w(RGB)p 1160 1680 V 330 w FC(8)p 1283 |
| 1680 V 100 w(8)p 1406 1680 V 100 w(8)p 1530 1680 V 1653 |
| 1680 V 1776 1680 V 1899 1680 V 332 1681 1569 2 v 331 |
| 1738 2 57 v 357 1721 a Fr(RGB10)p 789 1738 V 348 w(RGB)p |
| 1160 1738 V 318 w FC(10)p 1283 1738 V 78 w(10)p 1406 |
| 1738 V 77 w(10)p 1530 1738 V 1653 1738 V 1776 1738 V |
| 1899 1738 V 332 1739 1569 2 v 331 1796 2 57 v 357 1779 |
| a Fr(RGB12)p 789 1796 V 348 w(RGB)p 1160 1796 V 318 w |
| FC(12)p 1283 1796 V 78 w(12)p 1406 1796 V 77 w(12)p 1530 |
| 1796 V 1653 1796 V 1776 1796 V 1899 1796 V 332 1798 1569 |
| 2 v 331 1854 2 57 v 357 1837 a Fr(RGB16)p 789 1854 V |
| 348 w(RGB)p 1160 1854 V 318 w FC(16)p 1283 1854 V 78 |
| w(16)p 1406 1854 V 77 w(16)p 1530 1854 V 1653 1854 V |
| 1776 1854 V 1899 1854 V 332 1856 1569 2 v 331 1912 2 |
| 57 v 357 1895 a Fr(RGBA2)p 789 1912 V 348 w(RGBA)p 1160 |
| 1912 V 308 w FC(2)p 1283 1912 V 100 w(2)p 1406 1912 V |
| 100 w(2)p 1530 1912 V 101 w(2)p 1653 1912 V 1776 1912 |
| V 1899 1912 V 332 1914 1569 2 v 331 1970 2 57 v 357 1953 |
| a Fr(RGBA4)p 789 1970 V 348 w(RGBA)p 1160 1970 V 308 |
| w FC(4)p 1283 1970 V 100 w(4)p 1406 1970 V 100 w(4)p |
| 1530 1970 V 101 w(4)p 1653 1970 V 1776 1970 V 1899 1970 |
| V 332 1972 1569 2 v 331 2028 2 57 v 357 2011 a Fr(RGB5)p |
| 448 2011 14 2 v 15 w(A1)p 789 2028 2 57 v 311 w(RGBA)p |
| 1160 2028 V 308 w FC(5)p 1283 2028 V 100 w(5)p 1406 2028 |
| V 100 w(5)p 1530 2028 V 101 w(1)p 1653 2028 V 1776 2028 |
| V 1899 2028 V 332 2030 1569 2 v 331 2086 2 57 v 357 2070 |
| a Fr(RGBA8)p 789 2086 V 348 w(RGBA)p 1160 2086 V 308 |
| w FC(8)p 1283 2086 V 100 w(8)p 1406 2086 V 100 w(8)p |
| 1530 2086 V 101 w(8)p 1653 2086 V 1776 2086 V 1899 2086 |
| V 332 2088 1569 2 v 331 2145 2 57 v 357 2128 a Fr(RGB10)p |
| 470 2128 14 2 v 15 w(A2)p 789 2145 2 57 v 289 w(RGBA)p |
| 1160 2145 V 296 w FC(10)p 1283 2145 V 78 w(10)p 1406 |
| 2145 V 77 w(10)p 1530 2145 V 89 w(2)p 1653 2145 V 1776 |
| 2145 V 1899 2145 V 332 2146 1569 2 v 331 2203 2 57 v |
| 357 2186 a Fr(RGBA12)p 789 2203 V 326 w(RGBA)p 1160 2203 |
| V 296 w FC(12)p 1283 2203 V 78 w(12)p 1406 2203 V 77 |
| w(12)p 1530 2203 V 77 w(12)p 1653 2203 V 1776 2203 V |
| 1899 2203 V 332 2204 1569 2 v 331 2261 2 57 v 357 2244 |
| a Fr(RGBA16)p 789 2261 V 326 w(RGBA)p 1160 2261 V 296 |
| w FC(16)p 1283 2261 V 78 w(16)p 1406 2261 V 77 w(16)p |
| 1530 2261 V 77 w(16)p 1653 2261 V 1776 2261 V 1899 2261 |
| V 332 2262 1569 2 v 332 2340 a(T)l(able)c(3.8:)17 b(Corresp)q(ondence) |
| 12 b(of)f(sized)i(in)o(ternal)f(formats)e(to)h(base)g(in)o(ternal)h |
| (formats,)332 2396 y(and)j Fv(desir)n(e)n(d)g FC(comp)q(onen)o(t)g |
| (resolutions)h(for)f(eac)o(h)g(sized)h(in)o(ternal)g(format.)p |
| eop |
| %%Page: 89 98 |
| 89 97 bop 120 137 a Fx(3.8.)34 b(TEXTURING)1059 b FC(89)234 |
| 286 y Fw(void)33 b Fz(T)l(exImage1D)p FC(\()h Fw(enum)16 |
| b Fv(tar)n(get)p Fw(,)h(int)g Fv(level)p Fw(,)f(int)g |
| Fv(internalfor-)302 343 y(mat)p Fw(,)24 b(sizei)e Fv(width)p |
| Fw(,)i(int)e Fv(b)n(or)n(der)p Fw(,)i(enum)d Fv(format)p |
| Fw(,)k(enum)c Fv(typ)n(e)p Fw(,)302 399 y(void)15 b Fv(*data)h |
| FC(\))f Fw(;)120 527 y FC(is)21 b(used)h(to)e(sp)q(ecify)i |
| (one-dimensional)h(texture)d(images.)36 b Fv(tar)n(get)21 |
| b FC(m)o(ust)f(b)q(e)h(either)120 583 y Fr(TEXTURE)p |
| 277 583 14 2 v 15 w(1D)15 b FC(or)g Fr(PROXY)p 517 583 |
| V 15 w(TEXTURE)p 686 583 V 14 w(1D)p FC(.)g(\(It)g(is)h |
| Fr(TEXTURE)p 1039 583 V 15 w(1D)f FC(except)h(in)g(the)g(sp)q(ecial)i |
| (case)120 640 y(discussed)e(in)g(section)f(3.8.3.\))i(F)l(or)d(the)g |
| (purp)q(oses)h(of)f(deco)q(ding)i(the)f(texture)f(image,)120 |
| 696 y Fz(T)l(exImage1D)22 b FC(is)g(equiv)m(alen)o(t)h(to)e(calling)j |
| Fz(T)l(exImage2D)d FC(with)h(corresp)q(onding)120 753 |
| y(argumen)o(ts)15 b(and)i Fv(height)f FC(of)f(1,)h(except)g(that)f(the) |
| h Fv(height)g FC(of)g(the)g(image)g(is)g(alw)o(a)o(ys)f(1,)120 |
| 809 y(regardless)g(of)f(the)h(v)m(alue)h(of)e Fv(b)n(or)n(der)p |
| FC(.)19 b(It)c(m)o(ust)f(b)q(e)h(the)g(case)g(that)e |
| Fy(w)1307 816 y Fu(s)1338 809 y FC(=)g(2)1409 793 y Fu(n)1441 |
| 809 y FC(+)c(2)p Fy(b)1528 816 y Fu(s)1560 809 y FC(for)120 |
| 865 y(some)16 b(in)o(teger)g Fy(n)f FC(where)h Fy(b)580 |
| 872 y Fu(s)614 865 y FC(is)g(the)g(v)m(alue)g(of)g Fv(b)n(or)n(der)f |
| FC(and)h Fy(w)1168 872 y Fu(s)1202 865 y FC(is)g(the)f(v)m(alue)i(of)e |
| Fv(width)p FC(,)120 922 y(or)g(the)g(error)g Fr(INVALID)p |
| 523 922 V 14 w(VALUE)f FC(is)i(generated.)191 987 y(An)g(image)g(with)h |
| (zero)f(heigh)o(t)g(or)g(width)g(\(or)g(zero)g(width,)g(for)f |
| Fz(T)l(exImage1D)p FC(\))120 1043 y(indicates)k(the)e(n)o(ull)i |
| (texture.)25 b(If)17 b(the)h(n)o(ull)g(texture)f(is)h(sp)q(eci\014ed)h |
| (for)d(lev)o(el-of-detail)120 1100 y(zero,)f(it)h(is)f(as)g(if)h |
| (texturing)f(w)o(ere)g(disabled.)191 1165 y(The)21 b(image)g(indicated) |
| h(to)e(the)h(GL)f(b)o(y)h(the)g(image)f(p)q(oin)o(ter)h(is)h(deco)q |
| (ded)g(and)120 1221 y(copied)e(in)o(to)e(the)g(GL's)g(in)o(ternal)h |
| (memory)l(.)28 b(This)19 b(cop)o(ying)g(e\013ectiv)o(ely)g(places)g |
| (the)120 1277 y(deco)q(ded)f(image)e(inside)i(a)e(b)q(order)h(of)e(the) |
| i(maxim)o(um)f(allo)o(w)o(able)h(width)g(\(curren)o(tly)120 |
| 1334 y(1\))23 b(whether)f(or)h(not)f(a)h(b)q(order)g(has)f(b)q(een)i |
| (sp)q(eci\014ed)h(\(see)e(Figure)g(3.10\).)41 b(If)23 |
| b(no)120 1390 y(b)q(order)e(or)f(a)g(b)q(order)h(smaller)g(than)f(the)h |
| (maxim)o(um)f(allo)o(w)o(able)h(width)g(has)g(b)q(een)120 |
| 1447 y(sp)q(eci\014ed,)c(then)f(the)f(image)g(is)g(still)i(stored)d(as) |
| h(if)g(it)g(w)o(ere)g(surrounded)h(b)o(y)f(a)f(b)q(order)120 |
| 1503 y(of)k(the)g(maxim)o(um)g(p)q(ossible)i(width.)30 |
| b(An)o(y)18 b(excess)g(b)q(order)h(\(whic)o(h)f(surrounds)h(the)120 |
| 1560 y(sp)q(eci\014ed)24 b(image,)g(including)g(an)o(y)e(b)q(order\))f |
| (is)i(assigned)f(unsp)q(eci\014ed)j(v)m(alues.)41 b(A)120 |
| 1616 y(one-dimensional)18 b(texture)d(has)g(a)g(b)q(order)g(only)h(at)f |
| (its)g(left)h(and)f(righ)o(t)g(ends.)191 1681 y(W)l(e)f(shall)h(refer)f |
| (to)g(the)g(\(p)q(ossibly)h(b)q(order)g(augmen)o(ted\))e(deco)q(ded)j |
| (image)e(as)g(the)120 1737 y Fv(textur)n(e)h(arr)n(ay)p |
| FC(.)20 b(A)14 b(t)o(w)o(o-dimensional)g(texture)f(arra)o(y)g(has)g |
| (width)h Fy(w)1301 1744 y Fu(t)1328 1737 y FC(=)f(2)1399 |
| 1721 y Fu(n)1429 1737 y FC(+)7 b(2)p Fy(b)1514 1744 y |
| Fu(t)1542 1737 y FC(and)120 1794 y(heigh)o(t)18 b Fy(h)286 |
| 1801 y Fu(t)318 1794 y FC(=)f(2)393 1777 y Fu(m)437 1794 |
| y FC(+)12 b(2)p Fy(b)527 1801 y Fu(t)541 1794 y FC(,)18 |
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| (eci\014ed)i(width,)f(heigh)o(t,)120 399 y(and)d(b)q(order)g(width)g |
| (of)f(the)g(texture)g(arra)o(y)l(,)g(\(not)f(the)i(actual)g(arra)o(y)e |
| (dimensions)j Fy(w)1588 406 y Fu(t)1602 399 y FC(,)120 |
| 456 y Fy(h)146 463 y Fu(t)161 456 y FC(,)h(and)f Fy(b)300 |
| 463 y Fu(t)314 456 y FC(\),)g(and)h(taking)f Fy(x)p FC(,)g |
| Fy(y)r FC(,)g Fy(w)q FC(,)g(and)g Fy(h)h FC(to)f(b)q(e)g(the)h |
| Fv(xo\013set)p FC(,)f Fv(yo\013set)p FC(,)g Fv(width)p |
| FC(,)h(and)120 512 y Fv(height)12 b FC(argumen)o(t)f(v)m(alues,)i(an)o |
| (y)e(of)f(the)i(follo)o(wing)g(relationships)h(generates)e(the)g(error) |
| 120 569 y Fr(INVALID)p 277 569 14 2 v 15 w(VALUE)p FC(:)788 |
| 627 y Fy(x)h(<)h FB(\000)p Fy(b)929 634 y Fu(s)707 716 |
| y Fy(x)e FC(+)f Fy(w)j(>)g(w)916 723 y Fu(s)944 716 y |
| FB(\000)e Fy(b)1010 723 y Fu(s)789 804 y Fy(y)j(<)f FB(\000)p |
| Fy(b)928 811 y Fu(s)715 893 y Fy(y)f FC(+)f Fy(h)i(>)g(h)908 |
| 900 y Fu(s)936 893 y FB(\000)e Fy(b)1002 900 y Fu(s)120 |
| 979 y FC(\(Recall)h(that)e Fy(w)397 986 y Fu(s)425 979 |
| y FC(and)h Fy(h)535 986 y Fu(s)564 979 y FC(include)i(t)o(wice)d(the)h |
| (sp)q(eci\014ed)h(b)q(order)f(width)g Fy(b)1365 986 y |
| Fu(s)1383 979 y FC(.\))18 b(Coun)o(ting)120 1035 y(from)11 |
| b(zero,)h(the)g Fy(n)p FC(th)g(pixel)i(group)d(is)h(assigned)h(to)e |
| (the)h(texel)g(with)g(\()p Fy(u;)c(v)r FC(\))i(co)q(ordinates)120 |
| 1092 y(\()p Fy(i;)e(j)s FC(\),)13 b(where)684 1151 y |
| Fy(i)g FC(=)g Fy(x)d FC(+)g(\()p Fy(n)j FC(mo)q(d)f Fy(w)q |
| FC(\))638 1239 y Fy(j)j FC(=)e Fy(y)f FC(+)e(\()p FB(b)p |
| Fy(n=w)q FB(c)j FC(mo)q(d)f Fy(h)p FC(\))191 1326 y(The)29 |
| b Fv(xo\013set)g FC(argumen)o(t)f(of)h Fz(T)l(exSubImage1D)g |
| FC(and)g Fz(Cop)o(yT)l(exSubIm-)120 1383 y(age1D)19 b |
| FC(sp)q(eci\014es)h(the)f(left)f(texel)h(co)q(ordinate)g(of)f(a)g |
| Fv(width)p FC(-wide)i(subregion)f(of)f(the)120 1439 y(texture)h(arra)o |
| (y)l(.)29 b(Negativ)o(e)19 b(v)m(alues)h(of)e Fv(xo\013set)h |
| FC(corresp)q(ond)g(to)f(the)h(co)q(ordinates)g(of)120 |
| 1495 y(b)q(order)c(texels.)20 b(T)l(aking)15 b Fy(w)594 |
| 1502 y Fu(s)626 1495 y FC(and)f Fy(b)733 1502 y Fu(s)766 |
| 1495 y FC(to)f(b)q(e)i(the)g(sp)q(eci\014ed)h(width)f(and)g(b)q(order)f |
| (width)120 1552 y(of)g(the)h(texture)f(arra)o(y)l(,)f(and)i |
| Fy(x)g FC(and)f Fy(w)h FC(to)f(b)q(e)h(the)g Fv(xo\013set)f |
| FC(and)h Fv(width)g FC(argumen)o(t)f(v)m(al-)120 1608 |
| y(ues,)i(either)f(of)g(the)h(follo)o(wing)f(relationships)i(generates)e |
| (the)g(error)g Fr(INVALID)p 1475 1608 V 14 w(VALUE)p |
| FC(:)788 1713 y Fy(x)d(<)h FB(\000)p Fy(b)929 1720 y |
| Fu(s)707 1820 y Fy(x)e FC(+)f Fy(w)j(>)g(w)916 1827 y |
| Fu(s)944 1820 y FB(\000)e Fy(b)1010 1827 y Fu(s)120 1906 |
| y FC(Coun)o(ting)h(from)f(zero,)g(the)h Fy(n)p FC(th)f(pixel)j(group)d |
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| 1962 y(in)o(teger)k(co)q(ordinates)f([)p Fy(i)p FC(],)f(where)684 |
| 2067 y Fy(i)f FC(=)g Fy(x)d FC(+)g(\()p Fy(n)j FC(mo)q(d)f |
| Fy(w)q FC(\))120 2191 y Fz(T)l(exture)17 b(P)o(arameters)120 |
| 2278 y FC(V)l(arious)i(parameters)e(con)o(trol)g(ho)o(w)h(the)f |
| (texture)h(arra)o(y)f(is)h(treated)f(when)i(applied)120 |
| 2335 y(to)c(a)g(fragmen)o(t.)k(Eac)o(h)c(parameter)f(is)i(set)f(b)o(y)g |
| (calling)234 2432 y Fw(void)76 b Fz(T)l(exP)o(arameter)p |
| FB(f)p Fz(if)p FB(g)p FC(\()f Fw(enum)37 b Fv(tar)n(get)p |
| Fw(,)44 b(enum)38 b Fv(pname)p Fw(,)302 2488 y(T)15 b |
| Fv(p)n(ar)n(am)h FC(\))f Fw(;)p eop |
| %%Page: 94 103 |
| 94 102 bop 332 137 a FC(94)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)p 406 242 1348 2 v 405 299 2 57 v |
| 585 282 a FC(Name)p 878 299 V 225 w(T)o(yp)q(e)p 1072 |
| 299 V 71 w(Legal)16 b(V)l(alues)p 1752 299 V 406 301 |
| 1348 2 v 406 309 V 405 365 2 57 v 496 348 a Fr(TEXTURE)p |
| 653 348 14 2 v 14 w(WRAP)p 755 348 V 15 w(S)p 878 365 |
| 2 57 v 120 w FC(in)o(teger)p 1072 365 V 54 w Fr(CLAMP)p |
| FC(,)e Fr(REPEAT)p 1752 365 V 406 367 1348 2 v 405 423 |
| 2 57 v 496 406 a(TEXTURE)p 653 406 14 2 v 14 w(WRAP)p |
| 755 406 V 15 w(T)p 878 423 2 57 v 120 w FC(in)o(teger)p |
| 1072 423 V 54 w Fr(CLAMP)p FC(,)g Fr(REPEAT)p 1752 423 |
| V 406 425 1348 2 v 405 707 2 283 v 452 465 a(TEXTURE)p |
| 609 465 14 2 v 15 w(MIN)p 690 465 V 15 w(FILTER)p 878 |
| 707 2 283 v 75 w FC(in)o(teger)p 1072 707 V 54 w Fr(NEAREST)p |
| FC(,)320 b Fr(LINEAR)p FC(,)1098 521 y Fr(NEAREST)p 1255 |
| 521 14 2 v 14 w(MIPMAP)p 1401 521 V 15 w(NEAREST)p FC(,)1098 |
| 578 y Fr(NEAREST)p 1255 578 V 14 w(MIPMAP)p 1401 578 |
| V 15 w(LINEAR)p FC(,)1098 634 y Fr(LINEAR)p 1233 634 |
| V 14 w(MIPMAP)p 1379 634 V 15 w(NEAREST)p FC(,)1098 690 |
| y Fr(LINEAR)p 1233 690 V 14 w(MIPMAP)p 1379 690 V 15 |
| w(LINEAR)p 1752 707 2 283 v 406 709 1348 2 v 405 765 |
| 2 57 v 452 749 a(TEXTURE)p 609 749 14 2 v 15 w(MAG)p |
| 690 749 V 15 w(FILTER)p 878 765 2 57 v 75 w FC(in)o(teger)p |
| 1072 765 V 54 w Fr(NEAREST)p FC(,)13 b Fr(LINEAR)p 1752 |
| 765 V 406 767 1348 2 v 405 824 2 57 v 431 807 a(TEXTURE)p |
| 588 807 14 2 v 14 w(BORDER)p 734 807 V 14 w(COLOR)p 878 |
| 824 2 57 v 49 w FC(4)i(\015oats)p 1072 824 V 49 w(an)o(y)g(4)g(v)m |
| (alues)h(in)g([0)p Fy(;)8 b FC(1])p 1752 824 V 406 825 |
| 1348 2 v 405 882 2 57 v 471 865 a Fr(TEXTURE)p 628 865 |
| 14 2 v 14 w(PRIORITY)p 878 882 2 57 v 117 w FC(\015oat)p |
| 1072 882 V 77 w(an)o(y)15 b(v)m(alue)h(in)g([0)p Fy(;)8 |
| b FC(1])p 1752 882 V 406 883 1348 2 v 604 961 a(T)l(able)16 |
| b(3.9:)j(T)l(exture)c(parameters)g(and)g(their)h(v)m(alues.)446 |
| 1143 y Fw(void)68 b Fz(T)l(exP)o(arameter)p FB(f)p Fz(if)p |
| FB(g)p Fz(v)p FC(\()f Fw(enum)34 b Fv(tar)n(get)p Fw(,)39 |
| b(enum)34 b Fv(pname)p Fw(,)514 1199 y(T)15 b Fv(p)n(ar)n(ams)g |
| FC(\))g Fw(;)332 1287 y Fv(tar)n(get)k FC(is)h(the)f(target,)f(either)i |
| Fr(TEXTURE)p 1036 1287 14 2 v 14 w(1D)f FC(or)f Fr(TEXTURE)p |
| 1326 1287 V 15 w(2D)p FC(,)g Fv(pname)h FC(is)h(a)e(sym)o(b)q(olic)332 |
| 1343 y(constan)o(t)13 b(indicating)j(the)e(parameter)g(to)f(b)q(e)i |
| (set;)e(the)i(p)q(ossible)g(constan)o(ts)e(and)i(cor-)332 |
| 1400 y(resp)q(onding)g(parameters)d(are)h(summarized)h(in)g(T)l(able)g |
| (3.9.)19 b(In)14 b(the)f(\014rst)g(form)f(of)h(the)332 |
| 1456 y(command,)g Fv(p)n(ar)n(am)g FC(is)h(a)e(v)m(alue)i(to)f(whic)o |
| (h)h(to)e(set)h(a)f(single-v)m(alued)k(parameter;)d(in)g(the)332 |
| 1513 y(second)j(form)e(of)h(the)g(command,)g Fv(p)n(ar)n(ams)g |
| FC(is)g(an)g(arra)o(y)f(of)h(parameters)f(whose)h(t)o(yp)q(e)332 |
| 1569 y(dep)q(ends)h(on)f(the)g(parameter)f(b)q(eing)i(set.)k(If)15 |
| b(the)g(v)m(alues)h(for)e Fr(TEXTURE)p 1560 1569 V 14 |
| w(BORDER)p 1706 1569 V 15 w(COLOR)332 1626 y FC(are)g(sp)q(eci\014ed)i |
| (as)d(in)o(tegers,)h(the)g(con)o(v)o(ersion)h(for)e(signed)i(in)o |
| (tegers)f(from)f(T)l(able)i(2.6)e(is)332 1682 y(applied)19 |
| b(to)d(con)o(v)o(ert)g(the)g(v)m(alues)i(to)e(\015oating-p)q(oin)o(t.) |
| 25 b(Eac)o(h)17 b(of)f(the)h(four)f(v)m(alues)i(set)332 |
| 1738 y(b)o(y)d Fr(TEXTURE)p 552 1738 V 14 w(BORDER)p |
| 698 1738 V 15 w(COLOR)f FC(is)i(clamp)q(ed)g(to)f(lie)h(in)g([0)p |
| Fy(;)8 b FC(1].)332 1857 y Fz(T)l(exture)17 b(W)l(rap)g(Mo)q(des)332 |
| 1943 y FC(If)j Fr(TEXTURE)p 539 1943 V 14 w(WRAP)p 641 |
| 1943 V 15 w(S)f FC(or)g Fr(TEXTURE)p 911 1943 V 14 w(WRAP)p |
| 1013 1943 V 15 w(T)g FC(is)h(set)f(to)g Fr(REPEAT)p FC(,)f(then)h(the)h |
| (GL)f(ignores)332 2000 y(the)c(in)o(teger)g(part)f(of)h |
| Fy(s)g FC(or)f Fy(t)h FC(co)q(ordinates,)g(resp)q(ectiv)o(ely)l(,)h |
| (using)g(only)f(the)g(fractional)332 2056 y(part.)22 |
| b(\(F)l(or)15 b(a)h(n)o(um)o(b)q(er)g Fy(r)q FC(,)f(the)i(fractional)f |
| (part)f(is)i Fy(r)11 b FB(\000)g(b)p Fy(r)q FB(c)p FC(,)16 |
| b(regardless)g(of)g(the)g(sign)332 2112 y(of)h Fy(r)q |
| FC(;)g(recall)h(that)e(the)h Fv(\015o)n(or)g FC(function)h(truncates)f |
| (to)o(w)o(ards)e FB(\0001)p FC(.\))26 b Fr(CLAMP)16 b |
| FC(causes)h Fy(s)332 2169 y FC(or)h Fy(t)h FC(co)q(ordinates)f(to)g(b)q |
| (e)h(clamp)q(ed)h(to)d(the)i(range)f([0)p Fy(;)8 b FC(1].)27 |
| b(The)18 b(initial)j(state)c(is)i(for)332 2225 y(b)q(oth)c |
| Fy(s)h FC(and)f Fy(t)h FC(b)q(eha)o(vior)g(to)e(b)q(e)i(that)e(giv)o |
| (en)i(b)o(y)f Fr(REPEAT)p FC(.)332 2346 y Fl(3.8.1)55 |
| b(T)-5 b(exture)18 b(Mini\014cation)332 2432 y FC(Applying)k(a)e |
| (texture)f(to)h(a)f(primitiv)o(e)j(implies)g(a)e(mapping)g(from)g |
| (texture)f(image)332 2488 y(space)13 b(to)f(framebu\013er)g(image)g |
| (space.)20 b(In)13 b(general,)g(this)g(mapping)g(in)o(v)o(olv)o(es)g(a) |
| f(recon-)p eop |
| %%Page: 95 104 |
| 95 103 bop 120 137 a Fx(3.8.)34 b(TEXTURING)1059 b FC(95)120 |
| 286 y(struction)14 b(of)e(the)i(sampled)g(texture)f(image,)g(follo)o(w) |
| o(ed)h(b)o(y)f(a)g(homogeneous)g(w)o(arping)120 343 y(implied)21 |
| b(b)o(y)d(the)g(mapping)h(to)e(framebu\013er)h(space,)g(then)h(a)e |
| (\014ltering,)j(follo)o(w)o(ed)e(\014-)120 399 y(nally)j(b)o(y)f(a)f |
| (resampling)i(of)e(the)g(\014ltered,)j(w)o(arp)q(ed,)e(reconstructed)g |
| (image)f(b)q(efore)120 456 y(applying)e(it)f(to)f(a)g(fragmen)o(t.)20 |
| b(In)c(the)g(GL)f(this)h(mapping)h(is)f(appro)o(ximated)f(b)o(y)h(one) |
| 120 512 y(of)h(t)o(w)o(o)f(simple)j(\014ltering)f(sc)o(hemes.)26 |
| b(One)18 b(of)e(these)i(sc)o(hemes)f(is)h(selected)g(based)g(on)120 |
| 569 y(whether)e(the)f(mapping)g(from)g(texture)f(space)i(to)e |
| (framebu\013er)h(space)g(is)g(deemed)h(to)120 625 y Fv(magnify)f |
| FC(or)f Fv(minify)g FC(the)h(texture)f(image.)20 b(The)15 |
| b(c)o(hoice)g(is)g(go)o(v)o(erned)g(b)o(y)f(a)h(scale)g(fac-)120 |
| 682 y(tor)e Fy(\032)p FC(\()p Fy(x;)8 b(y)r FC(\))k(and)h |
| Fy(\025)p FC(\()p Fy(x;)8 b(y)r FC(\))j FB(\021)i FC(log)673 |
| 693 y Fq(2)692 682 y FC([)p Fy(\032)p FC(\()p Fy(x;)8 |
| b(y)r FC(\)];)j(if)j Fy(\025)p FC(\()p Fy(x;)8 b(y)r |
| FC(\))k(is)i(less)g(than)g(or)f(equal)h(to)f(some)120 |
| 738 y(constan)o(t)k(\(the)g(selection)i(of)e(the)h(constan)o(t)f(is)h |
| (describ)q(ed)h(b)q(elo)o(w)f(in)h(section)f(3.8.2\))120 |
| 795 y(the)c(texture)g(is)g(said)h(to)e(b)q(e)h(magni\014ed;)h(if)g(it)f |
| (is)g(greater,)f(the)h(texture)f(is)i(mini\014ed.)21 |
| b Fy(\025)120 851 y FC(is)16 b(called)h(the)e Fv(level)g(of)i(detail)p |
| FC(.)191 907 y(Let)f Fy(s)p FC(\()p Fy(x;)8 b(y)r FC(\))14 |
| b(b)q(e)j(the)e(function)i(that)e(asso)q(ciates)g(an)h |
| Fy(s)g FC(texture)f(co)q(ordinate)h(with)120 964 y(eac)o(h)23 |
| b(set)f(of)f(windo)o(w)i(co)q(ordinates)f(\()p Fy(x;)8 |
| b(y)r FC(\))21 b(that)g(lie)j(within)f(a)f(primitiv)o(e;)27 |
| b(de\014ne)120 1020 y Fy(t)p FC(\()p Fy(x;)8 b(y)r FC(\))18 |
| b(analogously)l(.)31 b(Let)19 b Fy(u)p FC(\()p Fy(x;)8 |
| b(y)r FC(\))16 b(=)j(2)843 1004 y Fu(n)866 1020 y Fy(s)p |
| FC(\()p Fy(x;)8 b(y)r FC(\))18 b(and)h Fy(v)r FC(\()p |
| Fy(x;)8 b(y)r FC(\))16 b(=)j(2)1328 1004 y Fu(m)1361 |
| 1020 y Fy(t)p FC(\()p Fy(x;)8 b(y)r FC(\))17 b(\(for)h(a)120 |
| 1077 y(one-dimensional)h(texture,)c(de\014ne)i Fy(v)r |
| FC(\()p Fy(x;)8 b(y)r FC(\))k FB(\021)i FC(0\).)21 b(F)l(or)15 |
| b(a)h(p)q(olygon,)g Fy(\032)f FC(is)i(giv)o(en)f(at)f(a)120 |
| 1133 y(fragmen)o(t)f(with)i(windo)o(w)f(co)q(ordinates)h(\()p |
| Fy(x;)8 b(y)r FC(\))14 b(b)o(y)291 1269 y Fy(\032)f FC(=)g(max)468 |
| 1183 y Fi(8)468 1220 y(<)468 1295 y(:)505 1188 y(s)p |
| 546 1188 343 2 v 546 1209 a(\022)582 1238 y Fy(@)s(u)p |
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| 1220 y Fq(2)700 1269 y FC(+)745 1209 y Fi(\022)782 1238 |
| y Fy(@)s(v)p 781 1258 V 781 1300 a(@)s(x)838 1209 y Fi(\023)869 |
| 1220 y Fq(2)889 1269 y Fy(;)910 1189 y Fi(s)p 950 1189 |
| 341 2 v 950 1209 a(\022)986 1238 y Fy(@)s(u)p 986 1258 |
| 53 2 v 987 1300 a(@)s(y)1043 1209 y Fi(\023)1074 1220 |
| y Fq(2)1104 1269 y FC(+)1149 1209 y Fi(\022)1185 1238 |
| y Fy(@)s(v)p 1185 1258 51 2 v 1185 1300 a(@)s(y)1240 |
| 1209 y Fi(\023)1271 1220 y Fq(2)1291 1183 y Fi(9)1291 |
| 1220 y(=)1291 1295 y(;)1499 1269 y FC(\(3.11\))120 1404 |
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| Fy(x)p FC(,)h(and)120 1461 y(similarly)d(for)e(the)g(other)g(deriv)m |
| (ativ)o(es.)21 b(F)l(or)15 b(a)g(line,)h(the)f(form)o(ula)g(is)356 |
| 1591 y Fy(\032)d FC(=)440 1511 y Fi(s)p 481 1511 829 |
| 2 v 481 1532 a(\022)517 1560 y Fy(@)s(u)p 517 1581 53 |
| 2 v 517 1622 a(@)s(x)574 1591 y FC(\001)p Fy(x)e FC(+)699 |
| 1560 y Fy(@)s(u)p 699 1581 V 700 1622 a(@)s(y)756 1591 |
| y FC(\001)p Fy(y)818 1532 y Fi(\023)849 1542 y Fq(2)879 |
| 1591 y FC(+)924 1532 y Fi(\022)961 1560 y Fy(@)s(v)p |
| 960 1581 V 960 1622 a(@)s(x)1017 1591 y FC(\001)p Fy(x)g |
| FC(+)1142 1560 y Fy(@)s(v)p 1142 1581 51 2 v 1142 1622 |
| a(@)s(y)1197 1591 y FC(\001)p Fy(y)1259 1532 y Fi(\023)1289 |
| 1542 y Fq(2)1309 1532 y Fi(\036)1353 1591 y Fy(l)q(;)118 |
| b FC(\(3.12\))120 1706 y(where)17 b(\001)p Fy(x)d FC(=)g |
| Fy(x)406 1713 y Fq(2)437 1706 y FB(\000)d Fy(x)509 1713 |
| y Fq(1)544 1706 y FC(and)17 b(\001)p Fy(y)f FC(=)e Fy(y)781 |
| 1713 y Fq(2)812 1706 y FB(\000)d Fy(y)880 1713 y Fq(1)916 |
| 1706 y FC(with)16 b(\()p Fy(x)1064 1713 y Fq(1)1084 1706 |
| y Fy(;)8 b(y)1127 1713 y Fq(1)1146 1706 y FC(\))16 b(and)g(\()p |
| Fy(x)1313 1713 y Fq(2)1332 1706 y Fy(;)8 b(y)1375 1713 |
| y Fq(2)1395 1706 y FC(\))15 b(b)q(eing)j(the)120 1763 |
| y(segmen)o(t's)c(windo)o(w)h(co)q(ordinate)h(endp)q(oin)o(ts)g(and)f |
| Fy(l)e FC(=)1085 1725 y Fi(p)p 1126 1725 221 2 v 1126 |
| 1763 a FC(\001)p Fy(x)1190 1750 y Fq(2)1220 1763 y FC(+)e(\001)p |
| Fy(y)1328 1750 y Fq(2)1347 1763 y FC(.)20 b(F)l(or)14 |
| b(a)h(p)q(oin)o(t,)120 1819 y(pixel)i(rectangle,)e(or)g(bitmap,)g |
| Fy(\032)d FB(\021)h FC(1.)191 1876 y(While)19 b(it)e(is)h(generally)h |
| (agreed)e(that)g(equations)g(3.11)g(and)g(3.12)f(giv)o(e)i(the)f(b)q |
| (est)120 1932 y(results)e(when)f(texturing,)g(they)g(are)f(often)h |
| (impractical)h(to)f(implemen)o(t.)20 b(Therefore,)120 |
| 1989 y(an)i(implemen)o(tation)i(ma)o(y)d(appro)o(ximate)g(the)i(ideal)g |
| Fy(\032)e FC(with)i(a)e(function)i Fy(f)5 b FC(\()p Fy(x;)j(y)r |
| FC(\))120 2045 y(sub)s(ject)15 b(to)g(these)g(conditions:)176 |
| 2129 y(1.)22 b Fy(f)5 b FC(\()p Fy(x;)j(y)r FC(\))13 |
| b(is)i(con)o(tin)o(uous)f(and)h(monotonically)g(increasing)h(in)f(eac)o |
| (h)f(of)g FB(j)p Fy(@)s(u=@)s(x)p FB(j)p FC(,)234 2186 |
| y FB(j)p Fy(@)s(u=@)s(y)r FB(j)p FC(,)f FB(j)p Fy(@)s(v)r(=@)s(x)p |
| FB(j)p FC(,)g(and)i FB(j)p Fy(@)s(v)r(=@)s(y)r FB(j)p |
| FC(,)176 2275 y(2.)22 b(Let)345 2376 y Fy(m)385 2383 |
| y Fu(u)420 2376 y FC(=)13 b(max)560 2316 y Fi(\032)591 |
| 2315 y(\014)591 2340 y(\014)591 2365 y(\014)591 2389 |
| y(\014)610 2345 y Fy(@)s(u)p 610 2365 53 2 v 610 2407 |
| a(@)s(x)667 2315 y Fi(\014)667 2340 y(\014)667 2365 y(\014)667 |
| 2389 y(\014)689 2376 y Fy(;)710 2315 y Fi(\014)709 2340 |
| y(\014)709 2365 y(\014)709 2389 y(\014)728 2345 y Fy(@)s(u)p |
| 728 2365 V 729 2407 a(@)s(y)786 2315 y Fi(\014)786 2340 |
| y(\014)786 2365 y(\014)786 2389 y(\014)799 2316 y(\033)884 |
| 2376 y FC(and)45 b Fy(m)1042 2383 y Fu(v)1075 2376 y |
| FC(=)13 b(max)1215 2316 y Fi(\032)1247 2315 y(\014)1247 |
| 2340 y(\014)1247 2365 y(\014)1247 2389 y(\014)1267 2345 |
| y Fy(@)s(v)p 1265 2365 V 1265 2407 a(@)s(x)1323 2315 |
| y Fi(\014)1323 2340 y(\014)1323 2365 y(\014)1323 2389 |
| y(\014)1344 2376 y Fy(;)1365 2315 y Fi(\014)1365 2340 |
| y(\014)1365 2365 y(\014)1365 2389 y(\014)1384 2345 y |
| Fy(@)s(v)p 1383 2365 51 2 v 1383 2407 a(@)s(y)1439 2315 |
| y Fi(\014)1439 2340 y(\014)1439 2365 y(\014)1439 2389 |
| y(\014)1453 2316 y(\033)1491 2376 y Fy(:)234 2488 y FC(Then)j(max)o |
| FB(f)p Fy(m)500 2495 y Fu(u)522 2488 y Fy(;)8 b(m)583 |
| 2495 y Fu(v)603 2488 y FB(g)k(\024)h Fy(f)5 b FC(\()p |
| Fy(x;)j(y)r FC(\))k FB(\024)h Fy(m)920 2495 y Fu(u)952 |
| 2488 y FC(+)e Fy(m)1038 2495 y Fu(v)1058 2488 y FC(.)p |
| eop |
| %%Page: 96 105 |
| 96 104 bop 332 137 a FC(96)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)403 286 y FC(When)13 b Fy(\025)g FC(indicates)i |
| (mini\014cation,)g(the)f(v)m(alue)h(assigned)f(to)e Fr(TEXTURE)p |
| 1603 286 14 2 v 15 w(MIN)p 1684 286 V 15 w(FILTER)332 |
| 343 y FC(is)i(used)g(to)f(determine)i(ho)o(w)e(the)g(texture)g(v)m |
| (alue)i(for)e(a)g(fragmen)o(t)g(is)h(selected.)20 b(When)332 |
| 399 y Fr(TEXTURE)p 489 399 V 14 w(MIN)p 569 399 V 15 |
| w(FILTER)13 b FC(is)h Fr(NEAREST)p FC(,)e(the)h(texel)i(nearest)e(\(in) |
| h(Manhattan)f(distance\))h(to)332 456 y(that)j(sp)q(eci\014ed)j(b)o(y)e |
| (\()p Fy(s;)8 b(t)p FC(\))18 b(is)g(obtained.)29 b(This)18 |
| b(means)g(the)g(texel)h(at)e(lo)q(cation)i(\()p Fy(i;)8 |
| b(j)s FC(\))332 512 y(b)q(ecomes)16 b(the)f(texture)g(v)m(alue,)h(with) |
| g Fy(i)f FC(giv)o(en)g(b)o(y)853 639 y Fy(i)e FC(=)930 |
| 567 y Fi(\()984 611 y FB(b)p Fy(u)p FB(c)p Fy(;)99 b(s)13 |
| b(<)g FC(1)p Fy(;)984 667 y FC(2)1007 651 y Fu(n)1040 |
| 667 y FB(\000)d FC(1)p Fy(;)41 b(s)13 b FC(=)g(1)p Fy(:)1710 |
| 639 y FC(\(3.13\))332 769 y(\(Recall)21 b(that)d(if)i |
| Fr(TEXTURE)p 796 769 V 14 w(WRAP)p 898 769 V 15 w(S)f |
| FC(is)h Fr(REPEAT)p FC(,)d(then)j(0)f FB(\024)h Fy(s)f(<)h |
| FC(1.\))31 b(Similarly)l(,)22 b Fy(j)g FC(is)332 825 |
| y(found)16 b(as)848 903 y Fy(j)f FC(=)930 831 y Fi(\()984 |
| 875 y FB(b)p Fy(v)r FB(c)p Fy(;)112 b(t)13 b(<)g FC(1)p |
| Fy(;)984 931 y FC(2)1007 915 y Fu(m)1050 931 y FB(\000)e |
| FC(1)p Fy(;)41 b(t)13 b FC(=)g(1)p Fy(:)1710 903 y FC(\(3.14\))332 |
| 1014 y(F)l(or)e(a)h(one-dimensional)i(texture,)e Fy(j)i |
| FC(is)e(irrelev)m(an)o(t;)i(the)d(texel)i(at)e(lo)q(cation)h |
| Fy(i)g FC(b)q(ecomes)332 1071 y(the)j(texture)g(v)m(alue.)403 |
| 1127 y(When)g Fr(TEXTURE)p 692 1127 V 15 w(MIN)p 773 |
| 1127 V 15 w(FILTER)f FC(is)i Fr(LINEAR)p FC(,)e(a)h(2)10 |
| b FB(\002)g FC(2)15 b(square)h(of)f(texels)h(is)g(selected.)332 |
| 1184 y(This)g(square)f(is)h(obtained)g(b)o(y)f(\014rst)f(computing)541 |
| 1311 y Fy(i)557 1318 y Fq(0)589 1311 y FC(=)637 1239 |
| y Fi(\()691 1282 y FB(b)p Fy(u)d FB(\000)f FC(1)p Fy(=)p |
| FC(2)p FB(c)i FC(mo)q(d)h(2)1017 1266 y Fu(n)1040 1282 |
| y Fy(;)41 b Fr(TEXTURE)p 1251 1282 V 15 w(WRAP)p 1354 |
| 1282 V 14 w(S)15 b FC(is)h Fr(REPEAT)o Fy(;)691 1339 |
| y FB(b)p Fy(u)11 b FB(\000)f FC(1)p Fy(=)p FC(2)p FB(c)p |
| Fy(;)199 b Fr(TEXTURE)p 1251 1339 V 15 w(WRAP)p 1354 |
| 1339 V 14 w(S)15 b FC(is)h Fr(CLAMP)332 1438 y FC(and)542 |
| 1516 y Fy(j)561 1523 y Fq(0)593 1516 y FC(=)641 1444 |
| y Fi(\()696 1487 y FB(b)p Fy(v)c FB(\000)e FC(1)p Fy(=)p |
| FC(2)p FB(c)i FC(mo)q(d)h(2)1019 1471 y Fu(m)1052 1487 |
| y Fy(;)41 b Fr(TEXTURE)p 1263 1487 V 14 w(WRAP)p 1365 |
| 1487 V 15 w(T)15 b FC(is)h Fr(REPEAT)696 1544 y FB(b)p |
| Fy(v)c FB(\000)e FC(1)p Fy(=)p FC(2)p FB(c)p Fy(;)209 |
| b Fr(TEXTURE)p 1263 1544 V 14 w(WRAP)p 1365 1544 V 15 |
| w(T)15 b FC(is)h Fr(CLAMP)o Fy(:)332 1627 y FC(Then)562 |
| 1704 y Fy(i)578 1711 y Fq(1)610 1704 y FC(=)658 1632 |
| y Fi(\()712 1676 y FC(\()p Fy(i)746 1683 y Fq(0)775 1676 |
| y FC(+)11 b(1\))h(mo)q(d)g(2)996 1660 y Fu(n)1020 1676 |
| y Fy(;)41 b Fr(TEXTURE)p 1231 1676 V 14 w(WRAP)p 1333 |
| 1676 V 15 w(S)15 b FC(is)h Fr(REPEAT)n Fy(;)712 1732 |
| y(i)728 1739 y Fq(0)758 1732 y FC(+)10 b(1)p Fy(;)235 |
| b Fr(TEXTURE)p 1231 1732 V 14 w(WRAP)p 1333 1732 V 15 |
| w(S)15 b FC(is)h Fr(CLAMP)332 1815 y FC(and)554 1893 |
| y Fy(j)573 1900 y Fq(1)605 1893 y FC(=)653 1821 y Fi(\()707 |
| 1865 y FC(\()p Fy(j)744 1872 y Fq(0)773 1865 y FC(+)11 |
| b(1\))h(mo)q(d)h(2)995 1848 y Fu(m)1028 1865 y Fy(;)41 |
| b Fr(TEXTURE)p 1239 1865 V 14 w(WRAP)p 1341 1865 V 15 |
| w(T)15 b FC(is)h Fr(REPEAT)n Fy(;)707 1921 y(j)726 1928 |
| y Fq(0)756 1921 y FC(+)10 b(1)p Fy(;)245 b Fr(TEXTURE)p |
| 1239 1921 V 14 w(WRAP)p 1341 1921 V 15 w(T)15 b FC(is)h |
| Fr(CLAMP)n Fy(:)332 2004 y FC(Let)649 2060 y Fy(\013)d |
| FC(=)g(frac\()p Fy(u)d FB(\000)g FC(1)p Fy(=)p FC(2\))44 |
| b(and)i Fy(\014)15 b FC(=)e(frac)o(\()p Fy(v)f FB(\000)e |
| FC(1)p Fy(=)p FC(2\))332 2141 y(where)i(frac)o(\()p Fy(x)p |
| FC(\))f(denotes)g(the)g(fractional)h(part)e(of)h Fy(x)p |
| FC(.)18 b(Let)12 b Fy(\034)1338 2148 y Fu(ij)1379 2141 |
| y FC(b)q(e)g(the)f(texel)h(at)f(lo)q(cation)332 2197 |
| y(\()p Fy(i;)d(j)s FC(\))13 b(in)j(the)f(texture)g(image.)20 |
| b(Then)c(the)f(texture)g(v)m(alue,)h Fy(\034)k FC(is)c(found)f(as)387 |
| 2294 y Fy(\034)j FC(=)13 b(\(1)d FB(\000)g Fy(\013)p |
| FC(\)\(1)f FB(\000)i Fy(\014)r FC(\))p Fy(\034)778 2301 |
| y Fu(i)790 2306 y Fe(0)807 2301 y Fu(j)821 2306 y Fe(0)851 |
| 2294 y FC(+)f Fy(\013)p FC(\(1)g FB(\000)g Fy(\014)r |
| FC(\))p Fy(\034)1087 2301 y Fu(i)1099 2306 y Fe(1)1116 |
| 2301 y Fu(j)1130 2306 y Fe(0)1160 2294 y FC(+)g(\(1)g |
| FB(\000)g Fy(\013)p FC(\))p Fy(\014)r(\034)1396 2301 |
| y Fu(i)1408 2306 y Fe(0)1426 2301 y Fu(j)1440 2306 y |
| Fe(1)1469 2294 y FC(+)h Fy(\013\014)r(\034)1592 2301 |
| y Fu(i)1604 2306 y Fe(1)1621 2301 y Fu(j)1635 2306 y |
| Fe(1)1710 2294 y FC(\(3.15\))332 2391 y(for)k(a)g(t)o(w)o |
| (o-dimensional)h(texture.)j(F)l(or)c(a)g(one-dimensional)i(texture,)871 |
| 2488 y Fy(\034)h FC(=)13 b(\(1)d FB(\000)g Fy(\013)p |
| FC(\))p Fy(\034)1120 2495 y Fu(i)1132 2500 y Fe(0)1161 |
| 2488 y FC(+)h Fy(\013\034)1256 2495 y Fu(i)1268 2500 |
| y Fe(1)p eop |
| %%Page: 97 106 |
| 97 105 bop 120 137 a Fx(3.8.)34 b(TEXTURING)1059 b FC(97)120 |
| 286 y(where)16 b Fy(\034)272 293 y Fu(i)302 286 y FC(indicates)h(the)f |
| (texel)g(at)f(lo)q(cation)h Fy(i)f FC(in)i(the)f(one-dimensional)i |
| (texture.)i(If)120 343 y(an)o(y)15 b(of)g(the)h(selected)g |
| Fy(\034)526 350 y Fu(ij)571 343 y FC(\(or)f Fy(\034)665 |
| 350 y Fu(i)679 343 y FC(\))g(in)h(the)f(ab)q(o)o(v)o(e)g(equations)h |
| (refer)f(to)g(a)g(b)q(order)g(texel)120 399 y(with)j |
| Fy(i)e(<)g FB(\000)p Fy(b)364 406 y Fu(s)383 399 y FC(,)h |
| Fy(j)i(<)d FB(\000)p Fy(b)557 406 y Fu(s)575 399 y FC(,)i |
| Fy(i)e FB(\025)g Fy(w)722 406 y Fu(s)752 399 y FB(\000)c |
| Fy(b)819 406 y Fu(s)836 399 y FC(,)18 b(or)f Fy(j)h FB(\025)f |
| Fy(h)1040 406 y Fu(s)1070 399 y FB(\000)12 b Fy(b)1137 |
| 406 y Fu(s)1155 399 y FC(,)17 b(then)h(the)f(b)q(order)h(color)120 |
| 456 y(giv)o(en)f(b)o(y)g(the)g(curren)o(t)f(setting)h(of)f |
| Fr(TEXTURE)p 905 456 14 2 v 14 w(BORDER)p 1051 456 V |
| 15 w(COLOR)f FC(is)i(used)g(instead)g(of)g(the)120 512 |
| y(unsp)q(eci\014ed)h(v)m(alue)f(or)e(v)m(alues.)22 b(The)15 |
| b(R)o(GBA)h(v)m(alues)h(of)e(the)g Fr(TEXTURE)p 1348 |
| 512 V 14 w(BORDER)p 1494 512 V 15 w(COLOR)120 569 y FC(are)c(in)o |
| (terpreted)h(to)f(matc)o(h)g(the)g(texture's)g(in)o(ternal)h(format)e |
| (in)i(a)f(manner)h(consisten)o(t)120 625 y(with)k(T)l(able)g(3.7.)120 |
| 757 y Fz(Mipmapping)120 847 y Fr(TEXTURE)p 277 847 V |
| 15 w(MIN)p 358 847 V 15 w(FILTER)h FC(v)m(alues)j Fr(NEAREST)p |
| 815 847 V 14 w(MIPMAP)p 961 847 V 15 w(NEAREST)p FC(,)d |
| Fr(NEAREST)p 1314 847 V 14 w(MIPMAP)p 1460 847 V 14 w(LINEAR)p |
| FC(,)120 903 y Fr(LINEAR)p 255 903 V 15 w(MIPMAP)p 402 |
| 903 V 14 w(NEAREST)p FC(,)e(and)h Fr(LINEAR)p 819 903 |
| V 14 w(MIPMAP)p 965 903 V 15 w(LINEAR)f FC(eac)o(h)h(require)h(the)f |
| (use)g(of)g(a)120 960 y Fv(mipmap)p FC(.)k(A)13 b(mipmap)f(is)h(an)f |
| (ordered)h(set)f(of)g(arra)o(ys)f(represen)o(ting)i(the)f(same)g |
| (image;)120 1016 y(eac)o(h)k(arra)o(y)f(has)h(a)g(resolution)g(lo)o(w)o |
| (er)g(than)g(the)g(previous)h(one.)22 b(If)16 b(the)g(texture)g(has)120 |
| 1073 y(dimensions)22 b(2)381 1056 y Fu(n)417 1073 y FB(\002)14 |
| b FC(2)489 1056 y Fu(m)522 1073 y FC(,)20 b(then)h(there)e(are)h(max)p |
| FB(f)p Fy(n;)8 b(m)p FB(g)k FC(+)h(1)20 b(mipmap)g(arra)o(ys.)32 |
| b(The)120 1129 y(\014rst)14 b(arra)o(y)e(is)i(the)f(original)i(texture) |
| e(with)h(dimensions)h(2)1125 1113 y Fu(n)1155 1129 y |
| FB(\002)7 b FC(2)1220 1113 y Fu(m)1253 1129 y FC(.)20 |
| b(Eac)o(h)13 b(subsequen)o(t)120 1186 y(arra)o(y)g(has)h(dimensions)i |
| (2)573 1169 y Fq(\()p Fu(k)q FG(\000)p Fq(1\))675 1186 |
| y FB(\002)8 b FC(2)741 1169 y Fq(\()p Fu(l)p FG(\000)p |
| Fq(1\))841 1186 y FC(where)14 b(2)994 1169 y Fu(k)1023 |
| 1186 y FB(\002)9 b FC(2)1090 1169 y Fu(l)1117 1186 y |
| FC(are)14 b(the)g(dimensions)i(of)e(the)120 1242 y(previous)g(arra)o(y) |
| l(.)k(This)13 b(is)g(the)g(case)f(as)g(long)h(as)f(b)q(oth)h |
| Fy(k)h(>)f FC(0)f(and)h Fy(l)g(>)g FC(0.)18 b(Once)c(either)120 |
| 1298 y Fy(k)g FC(=)f(0)h(or)f Fy(l)g FC(=)g(0,)g(eac)o(h)h(subsequen)o |
| (t)g(arra)o(y)f(has)h(dimension)h(1)7 b FB(\002)g FC(2)1259 |
| 1282 y Fq(\()p Fu(l)p FG(\000)p Fq(1\))1359 1298 y FC(or)13 |
| b(2)1436 1282 y Fq(\()p Fu(k)q FG(\000)p Fq(1\))1537 |
| 1298 y FB(\002)7 b FC(1,)120 1355 y(resp)q(ectiv)o(ely)l(,)17 |
| b(un)o(til)f(the)g(last)f(arra)o(y)f(is)h(reac)o(hed)h(with)g |
| (dimension)g(1)10 b FB(\002)h FC(1.)191 1413 y(Eac)o(h)16 |
| b(arra)o(y)f(in)i(a)e(mipmap)i(is)g(transmitted)e(to)h(the)g(GL)g |
| (using)h Fz(T)l(exImage2D)120 1470 y FC(or)i Fz(T)l(exImage1D)p |
| FC(;)g(the)h(arra)o(y)e(b)q(eing)j(set)e(is)h(indicated)i(with)d(the)h |
| Fv(level-of-detail)120 1526 y FC(argumen)o(t.)26 b(Lev)o(el-of-detail) |
| 20 b(n)o(um)o(b)q(ers)d(pro)q(ceed)i(from)d(0)h(for)g(the)h(original)g |
| (texture)120 1583 y(arra)o(y)13 b(through)g Fy(p)f FC(=)h(max)p |
| FB(f)p Fy(n;)8 b(m)p FB(g)k FC(with)i(eac)o(h)f(unit)i(increase)f |
| (indicating)i(an)d(arra)o(y)f(of)120 1639 y(half)j(the)g(dimensions)g |
| (of)f(the)h(previous)g(one)f(as)g(already)h(describ)q(ed.)21 |
| b(If)15 b(texturing)f(is)120 1696 y(enabled)h(\(and)d |
| Fr(TEXTURE)p 545 1696 V 15 w(MIN)p 626 1696 V 15 w(FILTER)f |
| FC(is)i(one)g(that)f(requires)i(a)e(mipmap\))h(at)g(the)f(time)120 |
| 1752 y(a)17 b(primitiv)o(e)h(is)f(rasterized)g(and)g(if)g(the)f(set)h |
| (of)f(arra)o(ys)f(0)i(through)f Fy(p)g FC(is)i(incomplete,)120 |
| 1809 y(based)h(on)f(the)h(dimensions)h(of)e(arra)o(y)f(0,)i(then)f(it)h |
| (is)g(as)f(if)h(texture)f(mapping)h(w)o(ere)120 1865 |
| y(disabled.)h(The)11 b(set)f(of)f(arra)o(ys)g(0)h(through)g |
| Fy(p)g FC(is)h(incomplete)g(if)g(the)f(in)o(ternal)h(formats)e(of)120 |
| 1922 y(all)17 b(the)f(mipmap)g(arra)o(ys)e(w)o(ere)i(not)f(sp)q |
| (eci\014ed)j(with)e(the)g(same)f(sym)o(b)q(olic)i(constan)o(t,)120 |
| 1978 y(or)i(if)h(the)f(b)q(order)g(widths)h(of)f(the)g(mipmap)h(arra)o |
| (ys)e(are)h(not)g(the)g(same,)g(or)g(if)h(the)120 2034 |
| y(dimensions)13 b(of)d(the)g(mipmap)h(arra)o(ys)f(do)g(not)g(follo)o(w) |
| h(the)f(sequence)i(describ)q(ed)h(ab)q(o)o(v)o(e.)120 |
| 2091 y(Arra)o(ys)i(indexed)i(greater)d(than)h Fy(p)g |
| FC(are)g(insigni\014can)o(t.)191 2149 y(The)j(mipmap)h(is)f(used)h(in)g |
| (conjunction)g(with)f(the)h(lev)o(el)g(of)f(detail)h(to)e(appro)o(x-) |
| 120 2206 y(imate)22 b(the)g(application)h(of)e(an)g(appropriately)h |
| (\014ltered)h(texture)e(to)g(a)g(fragmen)o(t.)120 2262 |
| y(Let)h Fy(p)h FC(=)g(max)p FB(f)p Fy(n;)8 b(m)p FB(g)20 |
| b FC(and)h(let)h Fy(c)f FC(b)q(e)h(the)g(v)m(alue)g(of)f |
| Fy(\025)g FC(at)g(whic)o(h)h(the)f(transition)120 2319 |
| y(from)16 b(mini\014cation)i(to)e(magni\014cation)h(o)q(ccurs)g |
| (\(since)g(this)g(discussion)h(p)q(ertains)f(to)120 2375 |
| y(mini\014cation,)24 b(w)o(e)c(are)g(concerned)i(only)f(with)g(v)m |
| (alues)h(of)e Fy(\025)g FC(where)h Fy(\025)g(>)h(c)p |
| FC(\).)35 b(F)l(or)120 2432 y Fr(NEAREST)p 277 2432 V |
| 15 w(MIPMAP)p 424 2432 V 14 w(NEAREST)p FC(,)16 b(if)h |
| Fy(c)f(<)h(\025)f FB(\024)h FC(0)p Fy(:)p FC(5)f(then)i(the)f(mipmap)h |
| (arra)o(y)e(with)i(lev)o(el-)120 2488 y(of-detail)e(of)e(0)g(is)h |
| (selected.)21 b(Otherwise,)15 b(the)f Fy(d)p FC(th)g(mipmap)h(arra)o(y) |
| f(is)h(selected)g(when)p eop |
| %%Page: 98 107 |
| 98 106 bop 332 137 a FC(98)750 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)332 286 y Fy(d)9 b FB(\000)415 269 |
| y Fq(1)p 415 276 18 2 v 415 302 a(2)450 286 y Fy(<)k(\025)f |
| FB(\024)h Fy(d)d FC(+)668 269 y Fq(1)p 668 276 V 668 |
| 302 a(2)706 286 y FC(as)k(long)i(as)e(1)e FB(\024)h Fy(d)g |
| FB(\024)g Fy(p)p FC(.)19 b(If)c Fy(\025)e(>)g(p)c FC(+)1353 |
| 269 y Fq(1)p 1353 276 V 1353 302 a(2)1375 286 y FC(,)15 |
| b(then)g(the)g Fy(p)p FC(th)g(mipmap)332 343 y(arra)o(y)k(is)j |
| (selected.)37 b(The)21 b(rules)g(for)f Fr(NEAREST)g FC(are)g(then)h |
| (applied)h(to)e(the)h(selected)332 399 y(arra)o(y)l(.)403 |
| 456 y(The)13 b(same)h(mipmap)g(arra)o(y)e(selection)j(rules)g(apply)f |
| (for)f Fr(LINEAR)p 1516 456 14 2 v 14 w(MIPMAP)p 1662 |
| 456 V 15 w(NEAREST)332 512 y FC(as)18 b(for)g Fr(NEAREST)p |
| 621 512 V 14 w(MIPMAP)p 767 512 V 14 w(NEAREST)p FC(,)f(but)h(the)h |
| (rules)g(for)e Fr(LINEAR)g FC(are)h(applied)j(to)c(the)332 |
| 569 y(selected)g(arra)o(y)l(.)403 625 y(F)l(or)12 b Fr(NEAREST)p |
| 639 625 V 14 w(MIPMAP)p 785 625 V 14 w(LINEAR)p FC(,)f(the)i(lev)o(el)h |
| Fy(d)5 b FB(\000)g FC(1)11 b(and)i(the)g(lev)o(el)h Fy(d)e |
| FC(mipmap)h(arra)o(ys)332 682 y(are)d(selected,)i(where)f |
| Fy(d)q FB(\000)q FC(1)h FB(\024)h Fy(\025)f(<)h(d)p FC(,)e(unless)g |
| Fy(\025)h FB(\025)h Fy(p)p FC(,)e(in)g(whic)o(h)h(case)e(the)h |
| Fy(p)p FC(th)f(mipmap)332 738 y(arra)o(y)i(is)i(used)g(for)e(b)q(oth)i |
| (arra)o(ys.)j(The)d(rules)g(for)e Fr(NEAREST)g FC(are)h(then)h(applied) |
| h(to)d(eac)o(h)332 795 y(of)i(these)h(arra)o(ys,)e(yielding)k(t)o(w)o |
| (o)d(corresp)q(onding)h(texture)g(v)m(alues)h Fy(\034)1508 |
| 802 y Fu(d)p FG(\000)p Fq(1)1588 795 y FC(and)e Fy(\034)1695 |
| 802 y Fu(d)1716 795 y FC(.)19 b(The)332 851 y(\014nal)d(texture)f(v)m |
| (alue)h(is)g(then)g(found)f(as)751 953 y Fy(\034)j FC(=)13 |
| b([1)d FB(\000)g FC(frac\()p Fy(\025)p FC(\)])p Fy(\034)1099 |
| 960 y Fu(d)p FG(\000)p Fq(1)1172 953 y FC(+)h(frac)o(\()p |
| Fy(\025)p FC(\))p Fy(\034)1375 960 y Fu(d)1394 953 y |
| Fy(:)332 1056 y Fr(LINEAR)p 467 1056 V 15 w(MIPMAP)p |
| 614 1056 V 14 w(LINEAR)17 b FC(has)g(the)h(same)g(e\013ect)f(as)h |
| Fr(NEAREST)p 1393 1056 V 14 w(MIPMAP)p 1539 1056 V 14 |
| w(LINEAR)f FC(except)332 1112 y(that)f(the)g(rules)h(for)f |
| Fr(LINEAR)f FC(are)h(applied)i(for)e(eac)o(h)h(of)f(the)g(t)o(w)o(o)f |
| (mipmap)i(arra)o(ys)e(to)332 1169 y(generate)g Fy(\034)534 |
| 1176 y Fu(d)p FG(\000)p Fq(1)614 1169 y FC(and)h Fy(\034)723 |
| 1176 y Fu(d)743 1169 y FC(.)332 1291 y Fl(3.8.2)55 b(T)-5 |
| b(exture)18 b(Magni\014cation)332 1377 y FC(When)h Fy(\025)e |
| FC(indicates)j(magni\014cation,)f(the)f(v)m(alue)h(assigned)g(to)e |
| Fr(TEXTURE)p 1603 1377 V 15 w(MAG)p 1684 1377 V 15 w(FILTER)332 |
| 1433 y FC(determines)i(ho)o(w)d(the)i(texture)f(v)m(alue)i(is)f |
| (obtained.)27 b(There)18 b(are)f(t)o(w)o(o)f(p)q(ossible)k(v)m(al-)332 |
| 1490 y(ues)14 b(for)g Fr(TEXTURE)p 635 1490 V 14 w(MAG)p |
| 715 1490 V 15 w(FILTER)p FC(:)f Fr(NEAREST)f FC(and)i |
| Fr(LINEAR)p FC(.)f Fr(NEAREST)f FC(b)q(eha)o(v)o(es)i(exactly)h(as)332 |
| 1546 y Fr(NEAREST)j FC(for)g Fr(TEXTURE)p 734 1546 V |
| 15 w(MIN)p 815 1546 V 15 w(FILTER)f FC(\(equation)j(3.13)e(and)h(3.14)f |
| (are)h(used\);)i Fr(LINEAR)332 1603 y FC(b)q(eha)o(v)o(es)f(exactly)g |
| (as)f Fr(LINEAR)f FC(for)g Fr(TEXTURE)p 1107 1603 V 15 |
| w(MIN)p 1188 1603 V 15 w(FILTER)g FC(\(equation)h(3.15)g(is)h(used\).) |
| 332 1659 y(The)c(lev)o(el-of-detail)h(0)e(texture)g(arra)o(y)f(is)i |
| (alw)o(a)o(ys)e(used)i(for)e(magni\014cation.)403 1716 |
| y(Finally)l(,)f(there)e(is)h(the)f(c)o(hoice)h(of)f Fy(c)p |
| FC(,)g(the)g(mini\014cation)i(vs.)18 b(magni\014cation)12 |
| b(switc)o(h-)332 1772 y(o)o(v)o(er)g(p)q(oin)o(t.)19 |
| b(If)13 b(the)g(magni\014cation)g(\014lter)g(is)g(giv)o(en)g(b)o(y)g |
| Fr(LINEAR)e FC(and)i(the)g(mini\014cation)332 1828 y(\014lter)g(is)f |
| (giv)o(en)h(b)o(y)f Fr(NEAREST)p 813 1828 V 14 w(MIPMAP)p |
| 959 1828 V 15 w(NEAREST)f FC(or)g Fr(NEAREST)p 1345 1828 |
| V 14 w(MIPMAP)p 1491 1828 V 15 w(LINEAR)p FC(,)f(then)j |
| Fy(c)f FC(=)332 1885 y(0)p Fy(:)p FC(5.)18 b(This)12 |
| b(is)f(done)h(to)f(ensure)h(that)e(a)h(mini\014ed)j(texture)d(do)q(es)g |
| (not)g(app)q(ear)h(\\sharp)q(er")332 1941 y(than)j(a)g(magni\014ed)h |
| (texture.)k(Otherwise)c Fy(c)c FC(=)h(0.)332 2063 y Fl(3.8.3)55 |
| b(T)-5 b(exture)18 b(State)g(and)h(Pro)n(xy)g(State)332 |
| 2149 y FC(The)g(state)e(necessary)i(for)e(texture)i(can)f(b)q(e)h |
| (divided)i(in)o(to)d(t)o(w)o(o)f(categories.)29 b(First,)332 |
| 2206 y(there)i(are)g(the)g(t)o(w)o(o)f(sets)g(of)h(mipmap)h(arra)o(ys)d |
| (\(one-dimensional)k(and)f(t)o(w)o(o-)332 2262 y(dimensional\))18 |
| b(and)f(their)g(n)o(um)o(b)q(er.)24 b(Eac)o(h)16 b(arra)o(y)f(has)i |
| (asso)q(ciated)f(with)h(it)g(a)f(width)332 2319 y(and)g(heigh)o(t)h |
| (\(t)o(w)o(o-dimensional)f(only\),)g(a)g(b)q(order)g(width,)g(a)g(42-v) |
| m(alued)h(in)o(teger)f(de-)332 2375 y(scribing)i(the)e(in)o(ternal)h |
| (format)e(of)h(the)h(image,)f(and)h(six)g(in)o(teger)f(v)m(alues)i |
| (describing)332 2432 y(the)d(resolutions)h(of)f(eac)o(h)g(of)f(the)i |
| (red,)f(green,)f(blue,)i(alpha,)g(luminance,)g(and)g(in)o(ten-)332 |
| 2488 y(sit)o(y)f(comp)q(onen)o(ts)g(of)f(the)h(image.)20 |
| b(Eac)o(h)14 b(initial)j(texture)e(arra)o(y)e(is)i(n)o(ull)i(\(zero)d |
| (width)p eop |
| %%Page: 99 108 |
| 99 107 bop 120 137 a Fx(3.8.)34 b(TEXTURING)1059 b FC(99)120 |
| 286 y(and)21 b(heigh)o(t,)g(zero)f(b)q(order)g(width,)h(in)o(ternal)g |
| (format)e Fr(1)p FC(,)h(with)g(zero-sized)i(comp)q(o-)120 |
| 343 y(nen)o(ts\).)k(Next,)17 b(there)g(are)f(the)i(t)o(w)o(o)d(sets)i |
| (of)g(texture)f(prop)q(erties;)j(eac)o(h)e(consists)g(of)120 |
| 399 y(the)c(selected)h(mini\014cation)h(and)e(magni\014cation)h |
| (\014lters,)f(the)g(wrap)f(mo)q(des)h(for)f Fy(s)i FC(and)120 |
| 456 y Fy(t)g FC(\(t)o(w)o(o-dimensional)h(only\),)e(the)h |
| Fr(TEXTURE)p 865 456 14 2 v 14 w(BORDER)p 1011 456 V |
| 15 w(COLOR)p FC(,)e(and)i(the)f(priorit)o(y)h(asso)q(ci-)120 |
| 512 y(ated)h(with)g(eac)o(h)g(set)f(of)h(prop)q(erties.)20 |
| b(\(See)15 b(subsection)h(3.8.4.\))i(In)d(the)g(initial)i(state,)120 |
| 569 y(the)e(v)m(alue)i(assigned)e(to)f Fr(TEXTURE)p 707 |
| 569 V 15 w(MIN)p 788 569 V 15 w(FILTER)f FC(is)j Fr(NEAREST)p |
| 1148 569 V 14 w(MIPMAP)p 1294 569 V 14 w(LINEAR)p FC(,)e(and)h(the)120 |
| 625 y(v)m(alue)i(for)d Fr(TEXTURE)p 464 625 V 14 w(MAG)p |
| 544 625 V 15 w(FILTER)g FC(is)h Fr(LINEAR)p FC(.)f(Both)h |
| Fy(s)g FC(and)g Fy(t)g FC(wrap)g(mo)q(des)g(are)g(set)f(to)120 |
| 682 y Fr(REPEAT)p FC(.)g(The)h(priorit)o(y)h(is)f(set)g(to)g(1.)20 |
| b Fr(TEXTURE)p 922 682 V 14 w(BORDER)p 1068 682 V 14 |
| w(COLOR)14 b FC(is)i(\(0,0,0,0\).)191 738 y(In)k(addition)h(to)e(the)g |
| (one-dimensional)j(and)e(t)o(w)o(o-dimensional)g(sets)g(of)f(image)120 |
| 795 y(arra)o(ys,)i(partially)h(instan)o(tiated)f(one-)h(and)f(t)o(w)o |
| (o-dimensional)h(sets)e(of)h(pro)o(xy)f(im-)120 851 y(age)g(arra)o(ys)f |
| (are)g(main)o(tained.)36 b(Eac)o(h)19 b(pro)o(xy)h(arra)o(y)f(includes) |
| j(width,)f(heigh)o(t)g(\(2D)120 907 y(arra)o(ys)h(only\),)i(b)q(order)f |
| (width,)i(and)e(in)o(ternal)g(format)f(state)g(v)m(alues,)j(as)d(w)o |
| (ell)i(as)120 964 y(state)18 b(for)h(the)g(red,)g(green,)h(blue,)h |
| (alpha,)f(luminance,)h(and)e(in)o(tensit)o(y)h(comp)q(onen)o(t)120 |
| 1020 y(resolutions.)31 b(Pro)o(xy)17 b(arra)o(ys)g(do)i(not)f(include)j |
| (image)d(data,)g(nor)g(do)h(they)f(include)120 1077 y(texture)h(prop)q |
| (erties.)31 b(When)19 b Fz(T)l(exImage2D)g FC(is)g(executed)h(with)f |
| Fv(tar)n(get)g FC(sp)q(eci\014ed)120 1133 y(as)h Fr(PROXY)p |
| 294 1133 V 15 w(TEXTURE)p 463 1133 V 14 w(2D)p FC(,)f(the)h(t)o(w)o |
| (o-dimensional)h(pro)o(xy)e(state)g(v)m(alues)j(of)d(the)h(sp)q(eci-) |
| 120 1190 y(\014ed)d(lev)o(el-of-detail)h(are)e(recomputed)g(and)g(up)q |
| (dated.)23 b(If)16 b(the)g(texture)f(arra)o(y)g(is)h(to)q(o)120 |
| 1246 y(large,)e(no)h(error)e(is)i(generated,)f(but)g(the)h(pro)o(xy)e |
| (width,)i(heigh)o(t,)f(b)q(order)h(width,)g(and)120 1303 |
| y(comp)q(onen)o(t)f(resolutions)h(are)e(set)h(to)f(zero.)19 |
| b(If)14 b(the)g(texture)g(arra)o(y)e(w)o(ould)i(b)q(e)h(accom-)120 |
| 1359 y(mo)q(dated)j(b)o(y)f Fz(T)l(exImage2D)g FC(called)i(with)f |
| Fv(tar)n(get)g FC(set)f(to)g Fr(TEXTURE)p 1337 1359 V |
| 14 w(2D)p FC(,)g(the)g(pro)o(xy)120 1416 y(state)j(v)m(alues)h(are)e |
| (set)h(exactly)g(as)g(though)g(the)g(actual)g(image)g(arra)o(y)f(w)o |
| (ere)g(b)q(eing)120 1472 y(sp)q(eci\014ed.)j(No)15 b(pixel)i(data)e |
| (are)g(transferred)f(or)h(pro)q(cessed)h(in)g(either)g(case.)191 |
| 1528 y(One-dimensional)23 b(pro)o(xy)c(arra)o(ys)f(are)i(op)q(erated)f |
| (on)h(in)g(the)g(same)g(w)o(a)o(y)e(when)120 1585 y Fz(T)l(exImage1D)d |
| FC(is)h(executed)g(with)g Fv(tar)n(get)f FC(sp)q(eci\014ed)i(as)e |
| Fr(PROXY)p 1241 1585 V 15 w(TEXTURE)p 1410 1585 V 14 |
| w(1D)p FC(.)120 1707 y Fl(3.8.4)56 b(T)-5 b(exture)17 |
| b(Ob)s(jects)120 1792 y FC(In)g(addition)h(to)d(the)i(default)g |
| (textures)f Fr(TEXTURE)p 983 1792 V 14 w(1D)g FC(and)g |
| Fr(TEXTURE)p 1300 1792 V 14 w(2D)p FC(,)g(named)g(one-)120 |
| 1849 y(and)c(t)o(w)o(o-dimensional)g(texture)f(ob)s(jects)g(can)h(b)q |
| (e)g(created)f(and)h(op)q(erated)f(up)q(on.)19 b(The)120 |
| 1905 y(name)e(space)f(for)g(texture)g(ob)s(jects)g(is)g(the)h(unsigned) |
| h(in)o(tegers,)e(with)g(zero)h(reserv)o(ed)120 1962 y(b)o(y)f(the)f |
| (GL.)191 2018 y(A)f(texture)h(ob)s(ject)f(is)h(created)f(b)o(y)g |
| Fv(binding)g FC(an)g(un)o(used)i(name)e(to)g Fr(TEXTURE)p |
| 1505 2018 V 14 w(1D)g FC(or)120 2075 y Fr(TEXTURE)p 277 |
| 2075 V 15 w(2D)p FC(.)g(The)h(binding)j(is)d(e\013ected)h(b)o(y)f |
| (calling)234 2169 y Fw(void)30 b Fz(BindT)l(exture)p |
| FC(\()g Fw(enum)15 b Fv(tar)n(get)p Fw(,)g(uint)f Fv(textur)n(e)i |
| FC(\))f Fw(;)120 2262 y FC(with)d Fv(tar)n(get)f FC(set)g(to)f(the)h |
| (desired)h(texture)f(target)f(\(either)h Fr(TEXTURE)p |
| 1268 2262 V 14 w(1D)g FC(or)f Fr(TEXTURE)p 1542 2262 |
| V 15 w(2D)p FC(\))120 2319 y(and)17 b Fv(textur)n(e)g |
| FC(set)g(to)f(the)g(un)o(used)i(name.)24 b(The)17 b(resulting)h |
| (texture)e(ob)s(ject)g(is)h(a)f(new)120 2375 y(state)e(v)o(ector,)f |
| (comprising)i(all)g(the)g(state)e(v)m(alues)i(listed)h(in)f(subsection) |
| g(3.8.3,)d(set)i(to)120 2432 y(the)k(same)g(initial)i(v)m(alues.)30 |
| b(If)18 b(the)g(new)g(texture)g(ob)s(ject)f(is)i(b)q(ound)g(to)e |
| Fr(TEXTURE)p 1547 2432 V 15 w(1D)p FC(,)120 2488 y(it)k(is)f(and)g |
| (remains)h(a)f(one-dimensional)i(texture)e(un)o(til)h(it)f(is)h |
| (deleted.)36 b(Lik)o(ewise,)p eop |
| %%Page: 100 109 |
| 100 108 bop 332 137 a FC(100)727 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)332 286 y FC(if)18 b(the)g(new)f(texture)g(ob)s |
| (ject)g(is)h(b)q(ound)h(to)d Fr(TEXTURE)p 1257 286 14 |
| 2 v 15 w(2D)p FC(,)g(it)i(is)g(and)g(remains)f(a)h(t)o(w)o(o-)332 |
| 343 y(dimensional)f(texture)e(un)o(til)i(it)e(is)h(deleted.)403 |
| 399 y Fz(BindT)l(exture)j FC(ma)o(y)f(also)g(b)q(e)i(used)f(to)f(bind)i |
| (an)f(existing)g(texture)g(ob)s(ject)f(to)332 456 y(either)c |
| Fr(TEXTURE)p 616 456 V 14 w(1D)e FC(or)h Fr(TEXTURE)p |
| 894 456 V 14 w(2D)p FC(.)f(The)h(error)f Fr(INVALID)p |
| 1331 456 V 15 w(OPERATION)f FC(is)i(generated)g(if)332 |
| 512 y(an)h(attempt)f(is)h(made)g(to)f(bind)i(a)e(one-dimensional)j |
| (texture)e(ob)s(ject)f(to)g Fr(TEXTURE)p 1759 512 V 14 |
| w(2D)p FC(,)332 569 y(or)20 b(to)f(bind)i(a)f(t)o(w)o(o-dimensional)h |
| (texture)e(ob)s(ject)h(to)f Fr(TEXTURE)p 1467 569 V 14 |
| w(1D)p FC(.)g(If)i(the)f(bind)h(is)332 625 y(successful)c(no)f(c)o |
| (hange)g(is)h(made)f(to)f(the)h(state)g(of)f(the)h(b)q(ound)h(texture)f |
| (ob)s(ject,)f(and)332 682 y(an)o(y)g(previous)h(binding)h(to)e |
| Fv(tar)n(get)g FC(is)h(brok)o(en.)403 738 y(While)h(a)f(texture)g(ob)s |
| (ject)g(is)h(b)q(ound,)g(GL)f(op)q(erations)g(on)h(the)f(target)f(to)h |
| (whic)o(h)332 795 y(it)j(is)g(b)q(ound)h(a\013ect)e(the)h(b)q(ound)h |
| (ob)s(ject,)e(and)h(queries)h(of)e(the)h(target)e(to)i(whic)o(h)g(it) |
| 332 851 y(is)i(b)q(ound)g(return)f(state)g(from)f(the)i(b)q(ound)g(ob)s |
| (ject.)35 b(If)20 b(texture)g(mapping)h(of)f(the)332 |
| 907 y(dimensionalit)o(y)e(of)e(the)h(target)d(to)i(whic)o(h)h(a)f |
| (texture)g(ob)s(ject)g(is)g(b)q(ound)i(is)e(enabled,)332 |
| 964 y(the)f(state)g(of)g(the)g(b)q(ound)h(texture)f(ob)s(ject)g |
| (directs)g(the)h(texturing)f(op)q(eration.)403 1020 y(In)g(the)f |
| (initial)i(state)e Fr(TEXTURE)p 934 1020 V 14 w(1D)g |
| FC(and)h Fr(TEXTURE)p 1248 1020 V 14 w(2D)f FC(ha)o(v)o(e)g |
| (one-dimensional)i(and)332 1077 y(t)o(w)o(o-dimensional)i(texture)f |
| (state)f(v)o(ectors)h(asso)q(ciated)g(with)h(them.)25 |
| b(In)18 b(order)f(that)332 1133 y(access)h(to)e(these)i(initial)h |
| (textures)e(not)g(b)q(e)h(lost,)f(they)h(are)f(treated)f(as)h(texture)g |
| (ob-)332 1190 y(jects)e(whose)g(names)g(are)g(b)q(oth)g(0.)20 |
| b(The)15 b(initial)i(one-dimensional)h(texture)d(is)g(there-)332 |
| 1246 y(fore)20 b(op)q(erated)g(up)q(on,)i(queried,)h(and)d(applied)i |
| (as)e Fr(TEXTURE)p 1409 1246 V 14 w(1D)g FC(while)i(0)e(is)g(b)q(ound) |
| 332 1303 y(to)k Fr(TEXTURE)p 554 1303 V 14 w(1D)p FC(.)g(Lik)o(ewise,) |
| 29 b(the)24 b(initial)j(t)o(w)o(o-dimensional)f(texture)e(is)i |
| (therefore)332 1359 y(op)q(erated)d(up)q(on,)j(queried,)g(and)e |
| (applied)h(as)d Fr(TEXTURE)p 1333 1359 V 15 w(2D)h FC(while)h(0)f(is)h |
| (b)q(ound)g(to)332 1416 y Fr(TEXTURE)p 489 1416 V 14 |
| w(2D)p FC(.)403 1472 y(T)l(exture)15 b(ob)s(jects)g(are)f(deleted)j(b)o |
| (y)e(calling)446 1557 y Fw(void)29 b Fz(DeleteT)l(extures)p |
| FC(\()h Fw(sizei)15 b Fv(n)p Fw(,)f(uint)h Fv(*textur)n(es)g |
| FC(\))g Fw(;)332 1641 y Fv(textur)n(es)h FC(con)o(tains)g |
| Fv(n)g FC(names)g(of)f(texture)h(ob)s(jects)f(to)h(b)q(e)h(deleted.)23 |
| b(After)16 b(a)g(texture)332 1698 y(ob)s(ject)d(is)h(deleted,)h(it)f |
| (has)g(no)f(con)o(ten)o(ts)g(or)g(dimensionalit)o(y)l(,)j(and)e(its)g |
| (name)f(is)h(again)332 1754 y(un)o(used.)20 b(If)14 b(a)f(texture)g |
| (that)f(is)i(curren)o(tly)f(b)q(ound)i(to)d Fr(TEXTURE)p |
| 1419 1754 V 14 w(1D)h FC(is)h(deleted,)h(it)e(is)h(as)332 |
| 1811 y(though)h Fz(BindT)l(exture)g FC(had)g(b)q(een)i(executed)f(with) |
| f(argumen)o(t)f(v)m(alues)j Fr(TEXTURE)p 1772 1811 V |
| 14 w(1D)332 1867 y FC(and)22 b(zero,)g(resp)q(ectiv)o(ely)l(.)40 |
| b(Lik)o(ewise,)24 b(if)e(a)f(texture)g(that)g(is)h(curren)o(tly)g(b)q |
| (ound)g(to)332 1924 y Fr(TEXTURE)p 489 1924 V 14 w(2D)13 |
| b FC(is)g(deleted,)i(it)e(is)g(as)g(though)g Fz(BindT)l(exture)g |
| FC(had)g(b)q(een)h(executed)g(with)332 1980 y(argumen)o(t)f(v)m(alues)i |
| Fr(TEXTURE)p 825 1980 V 14 w(2D)f FC(and)g(zero.)19 b(Un)o(used)14 |
| b(names)g(in)h Fv(textur)n(es)e FC(are)h(silen)o(tly)332 |
| 2037 y(ignored,)h(as)g(is)h(the)f(v)m(alue)i(zero.)403 |
| 2093 y(The)e(command)446 2178 y Fw(void)29 b Fz(GenT)l(extures)p |
| FC(\()h Fw(sizei)14 b Fv(n)p Fw(,)h(uint)f Fv(*textur)n(es)i |
| FC(\))e Fw(;)332 2262 y FC(returns)h Fv(n)f FC(previously)i(un)o(used)g |
| (texture)f(ob)s(ject)f(names)h(in)h Fv(textur)n(es)p |
| FC(.)j(These)c(names)332 2319 y(are)20 b(mark)o(ed)g(as)g(used,)i(but)e |
| (they)g(acquire)h(texture)f(state)g(and)g(a)g(dimensionalit)o(y)332 |
| 2375 y(only)c(when)g(they)f(are)g(\014rst)f(b)q(ound,)i(just)f(as)g(if) |
| h(they)f(w)o(ere)g(un)o(used.)403 2432 y(An)22 b(implemen)o(tation)g |
| (ma)o(y)f(c)o(ho)q(ose)h(to)f(establish)i(a)e(w)o(orking)g(set)h(of)f |
| (texture)332 2488 y(ob)s(jects)11 b(on)g(whic)o(h)i(binding)g(op)q |
| (erations)f(are)f(p)q(erformed)h(with)f(higher)i(p)q(erformance.)p |
| eop |
| %%Page: 101 110 |
| 101 109 bop 120 137 a Fx(3.8.)34 b(TEXTURING)1037 b FC(101)120 |
| 286 y(A)23 b(texture)f(ob)s(ject)f(that)h(is)g(curren)o(tly)h(part)e |
| (of)h(the)g(w)o(orking)g(set)g(is)h(said)g(to)e(b)q(e)120 |
| 343 y Fv(r)n(esident)p FC(.)e(The)d(command)234 443 y |
| Fw(boolean)37 b Fz(AreT)l(exturesResiden)o(t)p FC(\()g |
| Fw(sizei)18 b Fv(n)p Fw(,)i(uint)e Fv(*textur)n(es)p |
| Fw(,)302 499 y(boolean)c Fv(*r)n(esidenc)n(es)g FC(\))h |
| Fw(;)120 599 y FC(returns)f Fr(TRUE)f FC(if)h(all)g(of)g(the)f |
| Fv(n)g FC(texture)h(ob)s(jects)f(named)h(in)g Fv(textur)n(es)g |
| FC(are)f(residen)o(t,)h(or)120 656 y(if)j(the)f(implemen)o(tation)h(do) |
| q(es)f(not)g(distinguish)i(a)d(w)o(orking)h(set.)22 b(If)16 |
| b(at)f(least)h(one)g(of)120 712 y(the)d(texture)f(ob)s(jects)g(named)h |
| (in)h Fv(textur)n(es)e FC(is)h(not)g(residen)o(t,)g(then)g |
| Fr(FALSE)f FC(is)h(returned,)120 769 y(and)g(the)f(residence)i(of)e |
| (eac)o(h)g(texture)g(ob)s(ject)g(is)g(returned)h(in)g |
| Fv(r)n(esidenc)n(es)p FC(.)k(Otherwise)120 825 y(the)c(con)o(ten)o(ts)g |
| (of)f Fv(r)n(esidenc)n(es)f FC(are)i(not)f(c)o(hanged.)20 |
| b(If)13 b(an)o(y)f(of)h(the)g(names)g(in)g Fv(textur)n(es)g |
| FC(is)120 882 y(not)h(the)f(name)h(of)f(a)h(texture)f(ob)s(ject,)g |
| Fr(FALSE)g FC(is)h(returned,)g(the)g(error)f Fr(INVALID)p |
| 1495 882 14 2 v 14 w(VALUE)120 938 y FC(is)f(generated,)f(and)g(the)g |
| (con)o(ten)o(ts)f(of)h Fv(r)n(esidenc)n(es)e FC(are)h(indeterminate.)20 |
| b(The)11 b(residence)120 995 y(status)k(of)g(a)g(single)h(b)q(ound)h |
| (texture)e(ob)s(ject)f(can)i(also)f(b)q(e)h(queried)h(b)o(y)e(calling)i |
| Fz(Get-)120 1051 y(T)l(exP)o(arameteriv)g FC(or)h Fz(GetT)l(exP)o |
| (arameterfv)f FC(with)h Fy(tar)q(g)r(et)h FC(set)f(to)g(the)g(target) |
| 120 1107 y(to)d(whic)o(h)h(the)f(texture)g(ob)s(ject)g(is)h(b)q(ound,)f |
| (and)h Fy(pname)f FC(set)g(to)g Fr(TEXTURE)p 1401 1107 |
| V 14 w(RESIDENT)p FC(.)191 1165 y Fz(AreT)l(exturesResiden)o(t)f |
| FC(indicates)j(only)f(whether)g(a)g(texture)f(ob)s(ject)g(is)h(cur-)120 |
| 1222 y(ren)o(tly)i(residen)o(t,)f(not)g(whether)g(it)g(could)h(not)f(b) |
| q(e)h(made)f(residen)o(t.)25 b(An)18 b(implemen-)120 |
| 1278 y(tation)g(ma)o(y)f(c)o(ho)q(ose)h(to)g(mak)o(e)f(a)h(texture)g |
| (ob)s(ject)f(residen)o(t)i(only)f(on)g(\014rst)g(use,)g(for)120 |
| 1335 y(example.)i(The)11 b(clien)o(t)h(ma)o(y)e(guide)i(the)f(GL)g |
| (implemen)o(tation)i(in)e(determining)i(whic)o(h)120 |
| 1391 y(texture)k(ob)s(jects)e(should)j(b)q(e)f(residen)o(t)g(b)o(y)f |
| (sp)q(ecifying)i(a)e(priorit)o(y)h(for)f(eac)o(h)g(texture)120 |
| 1448 y(ob)s(ject.)k(The)15 b(command)234 1548 y Fw(void)76 |
| b Fz(PrioritizeT)l(extures)p FC(\()h Fw(sizei)38 b Fv(n)p |
| Fw(,)43 b(uint)38 b Fv(*textur)n(es)p Fw(,)302 1604 y(clampf)15 |
| b Fv(*priorities)g FC(\))g Fw(;)120 1704 y FC(sets)i(the)h(priorities)h |
| (of)e(the)g Fv(n)g FC(texture)g(ob)s(jects)g(named)h(in)g |
| Fv(textur)n(es)f FC(to)g(the)h(v)m(alues)120 1761 y(in)h |
| Fv(priorities)p FC(.)27 b(Eac)o(h)18 b(priorit)o(y)g(v)m(alue)h(is)f |
| (clamp)q(ed)h(to)e(the)h(range)f([0,1])f(b)q(efore)i(it)g(is)120 |
| 1817 y(assigned.)i(Zero)10 b(indicates)j(the)f(lo)o(w)o(est)e(priorit)o |
| (y)l(,)j(with)e(the)h(least)f(lik)o(eliho)q(o)q(d)k(of)10 |
| b(b)q(eing)120 1874 y(residen)o(t.)24 b(One)18 b(indicates)f(the)g |
| (highest)g(priorit)o(y)l(,)f(with)h(the)g(greatest)e(lik)o(eliho)q(o)q |
| (d)k(of)120 1930 y(b)q(eing)h(residen)o(t.)28 b(The)18 |
| b(priorit)o(y)g(of)g(a)f(single)i(b)q(ound)g(texture)f(ob)s(ject)f(ma)o |
| (y)g(also)h(b)q(e)120 1986 y(c)o(hanged)e(b)o(y)f(calling)i |
| Fz(T)l(exP)o(arameteri)p FC(,)d Fz(T)l(exP)o(arameterf)p |
| FC(,)g Fz(T)l(exP)o(arameteriv)p FC(,)120 2043 y(or)21 |
| b Fz(T)l(exP)o(arameterfv)f FC(with)i Fy(tar)q(g)r(et)f |
| FC(set)h(to)e(the)i(target)e(to)h(whic)o(h)h(the)g(texture)120 |
| 2099 y(ob)s(ject)f(is)h(b)q(ound,)i Fy(pname)e FC(set)f(to)g |
| Fr(TEXTURE)p 930 2099 V 14 w(PRIORITY)p FC(,)f(and)i |
| Fy(par)q(am)f FC(or)g Fy(par)q(ams)120 2156 y FC(sp)q(ecifying)16 |
| b(the)d(new)h(priorit)o(y)f(v)m(alue)i(\(whic)o(h)f(is)g(clamp)q(ed)h |
| (to)d(the)i(range)f([0,1])e(b)q(efore)120 2212 y(b)q(eing)k |
| (assigned\).)k Fz(PrioritizeT)l(extures)14 b FC(silen)o(tly)h(ignores)e |
| (attempts)g(to)f(prioritize)120 2269 y(un)o(used)k(texture)f(ob)s(ject) |
| g(names)g(or)g(default)h(textures.)120 2399 y Fl(3.8.5)56 |
| b(T)-5 b(exture)17 b(En)n(vironmen)n(ts)g(and)i(T)-5 |
| b(exture)18 b(F)-5 b(unctions)120 2488 y FC(The)16 b(command)p |
| eop |
| %%Page: 102 111 |
| 102 110 bop 332 137 a FC(102)727 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)446 286 y Fw(void)29 b Fz(T)l(exEn)o(v)p |
| FB(f)p Fz(if)p FB(g)p FC(\()g Fw(enum)15 b Fv(tar)n(get)p |
| Fw(,)g(enum)g Fv(pname)p Fw(,)g(T)g Fv(p)n(ar)n(am)g |
| FC(\))g Fw(;)446 343 y(void)29 b Fz(T)l(exEn)o(v)p FB(f)p |
| Fz(if)p FB(g)p Fz(v)p FC(\()g Fw(enum)15 b Fv(tar)n(get)p |
| Fw(,)g(enum)f Fv(pname)p Fw(,)i(T)f Fv(p)n(ar)n(ams)g |
| FC(\))f Fw(;)332 448 y FC(sets)f(parameters)g(of)f(the)i |
| Fv(textur)n(e)h(envir)n(onment)d FC(that)g(sp)q(eci\014es)j(ho)o(w)e |
| (texture)g(v)m(alues)332 504 y(are)20 b(in)o(terpreted)h(when)g |
| (texturing)f(a)g(fragmen)o(t.)34 b Fv(tar)n(get)20 b |
| FC(m)o(ust)g(curren)o(tly)g(b)q(e)h(the)332 561 y(sym)o(b)q(olic)15 |
| b(constan)o(t)e Fr(TEXTURE)p 858 561 14 2 v 14 w(ENV)p |
| FC(.)f Fv(pname)i FC(is)g(a)f(sym)o(b)q(olic)i(constan)o(t)e |
| (indicating)i(the)332 617 y(parameter)j(to)h(b)q(e)g(set.)32 |
| b(In)19 b(the)g(\014rst)g(form)f(of)h(the)g(command,)h |
| Fv(p)n(ar)n(am)f FC(is)g(a)g(v)m(alue)332 673 y(to)d(whic)o(h)i(to)e |
| (set)h(a)g(single-v)m(alued)j(parameter;)c(in)i(the)f(second)g(form,)g |
| Fv(p)n(ar)n(ams)f FC(is)i(a)332 730 y(p)q(oin)o(ter)i(to)e(an)h(arra)o |
| (y)f(of)h(parameters:)27 b(either)20 b(a)f(single)h(sym)o(b)q(olic)h |
| (constan)o(t)d(or)h(a)332 786 y(v)m(alue)h(or)e(group)h(of)f(v)m(alues) |
| i(to)e(whic)o(h)i(the)f(parameter)f(should)h(b)q(e)h(set.)30 |
| b(The)19 b(p)q(os-)332 843 y(sible)f(en)o(vironmen)o(t)f(parameters)e |
| (are)h Fr(TEXTURE)p 1170 843 V 14 w(ENV)p 1250 843 V |
| 16 w(MODE)f FC(and)i Fr(TEXTURE)p 1613 843 V 14 w(ENV)p |
| 1693 843 V 15 w(COLOR)p FC(.)332 899 y Fr(TEXTURE)p 489 |
| 899 V 14 w(ENV)p 569 899 V 15 w(MODE)g FC(ma)o(y)g(b)q(e)h(set)f(to)g |
| (one)g(of)g Fr(REPLACE)p FC(,)f Fr(MODULATE)p FC(,)f |
| Fr(DECAL)p FC(,)h(or)h Fr(BLEND)p FC(;)332 956 y Fr(TEXTURE)p |
| 489 956 V 14 w(ENV)p 569 956 V 15 w(COLOR)11 b FC(is)h(set)f(to)g(an)h |
| (R)o(GBA)f(color)h(b)o(y)g(pro)o(viding)g(four)f(single-precisi)q(on) |
| 332 1012 y(\015oating-p)q(oin)o(t)g(v)m(alues)h(in)g(the)f(range)f([0)p |
| Fy(;)e FC(1])h(\(v)m(alues)j(outside)f(this)g(range)g(are)f(clamp)q(ed) |
| 332 1069 y(to)g(it\).)18 b(If)11 b(in)o(tegers)g(are)g(pro)o(vided)g |
| (for)f Fr(TEXTURE)p 1143 1069 V 14 w(ENV)p 1223 1069 |
| V 15 w(COLOR)p FC(,)g(then)h(they)f(are)h(con)o(v)o(erted)332 |
| 1125 y(to)k(\015oating-p)q(oin)o(t)g(as)g(sp)q(eci\014ed)j(in)e(T)l |
| (able)g(2.6)e(for)g(signed)j(in)o(tegers.)403 1184 y(The)i(v)m(alue)i |
| (of)e Fr(TEXTURE)p 835 1184 V 14 w(ENV)p 915 1184 V 15 |
| w(MODE)f FC(sp)q(eci\014es)j(a)e Fv(textur)n(e)i(function)p |
| FC(.)31 b(The)20 b(result)332 1241 y(of)c(this)g(function)h(dep)q(ends) |
| g(on)f(the)g(fragmen)o(t)f(and)h(the)g(texture)f(arra)o(y)g(v)m(alue.) |
| 23 b(The)332 1297 y(precise)f(form)d(of)h(the)h(function)g(dep)q(ends)h |
| (on)e(the)h(base)f(in)o(ternal)h(formats)e(of)h(the)332 |
| 1354 y(texture)15 b(arra)o(ys)e(that)h(w)o(ere)h(last)g(sp)q |
| (eci\014ed.)21 b(In)16 b(the)f(follo)o(wing)g(t)o(w)o(o)f(tables,)h |
| Fy(R)1706 1361 y Fu(f)1728 1354 y FC(,)f Fy(G)1791 1361 |
| y Fu(f)1814 1354 y FC(,)332 1410 y Fy(B)366 1417 y Fu(f)389 |
| 1410 y FC(,)21 b(and)f Fy(A)550 1417 y Fu(f)593 1410 |
| y FC(are)g(the)g(color)h(comp)q(onen)o(ts)f(of)f(the)i(incoming)g |
| (fragmen)o(t;)g Fy(R)1715 1417 y Fu(t)1729 1410 y FC(,)g |
| Fy(G)1799 1417 y Fu(t)1814 1410 y FC(,)332 1467 y Fy(B)366 |
| 1474 y Fu(t)381 1467 y FC(,)e Fy(A)447 1474 y Fu(t)462 |
| 1467 y FC(,)g Fy(L)525 1474 y Fu(t)540 1467 y FC(,)g(and)g |
| Fy(I)684 1474 y Fu(t)718 1467 y FC(are)f(the)h(\014ltered)g(texture)g |
| (v)m(alues;)i Fy(R)1386 1474 y Fu(c)1403 1467 y FC(,)e |
| Fy(G)1471 1474 y Fu(c)1488 1467 y FC(,)g Fy(B)1554 1474 |
| y Fu(c)1572 1467 y FC(,)g(and)g Fy(A)1730 1474 y Fu(c)1766 |
| 1467 y FC(are)332 1523 y(the)c(texture)f(en)o(vironmen)o(t)h(color)f(v) |
| m(alues;)i(and)e Fy(R)1208 1530 y Fu(v)1228 1523 y FC(,)h |
| Fy(G)1292 1530 y Fu(v)1312 1523 y FC(,)f Fy(B)1373 1530 |
| y Fu(v)1394 1523 y FC(,)g(and)h Fy(A)1543 1530 y Fu(v)1578 |
| 1523 y FC(are)f(the)g(color)332 1579 y(comp)q(onen)o(ts)g(computed)h(b) |
| o(y)f(the)g(texture)g(function.)21 b(All)15 b(of)f(these)g(color)g(v)m |
| (alues)i(are)332 1636 y(in)e(the)f(range)g([0)p Fy(;)8 |
| b FC(1].)17 b(The)c Fr(REPLACE)f FC(and)h Fr(MODULATE)f |
| FC(texture)h(functions)h(are)e(sp)q(eci\014ed)332 1692 |
| y(in)20 b(T)l(able)h(3.10,)e(and)h(the)f Fr(DECAL)g FC(and)h |
| Fr(BLEND)e FC(texture)h(functions)i(are)e(sp)q(eci\014ed)j(in)332 |
| 1749 y(T)l(able)16 b(3.11.)403 1808 y(The)i(state)g(required)i(for)e |
| (the)g(curren)o(t)g(texture)h(en)o(vironmen)o(t)g(consists)f(of)g(the) |
| 332 1864 y(four-v)m(alued)i(in)o(teger)f(indicating)i(the)e(texture)g |
| (function)g(and)g(four)g(\015oating-p)q(oin)o(t)332 1921 |
| y Fr(TEXTURE)p 489 1921 V 14 w(ENV)p 569 1921 V 15 w(COLOR)d |
| FC(v)m(alues.)24 b(In)17 b(the)g(initial)h(state,)d(the)i(texture)f |
| (function)h(is)g(giv)o(en)332 1977 y(b)o(y)e Fr(MODULATE)f |
| FC(and)h Fr(TEXTURE)p 830 1977 V 14 w(ENV)p 910 1977 |
| V 15 w(COLOR)g FC(is)g(\(0)p Fy(;)8 b FC(0)p Fy(;)g FC(0)p |
| Fy(;)g FC(0)o(\).)332 2115 y Fl(3.8.6)55 b(T)-5 b(exture)18 |
| b(Application)332 2206 y FC(T)l(exturing)11 b(is)g(enabled)h(or)e |
| (disabled)j(using)e(the)g(generic)g Fz(Enable)h FC(and)f |
| Fz(Disable)h FC(com-)332 2262 y(mands,)h(resp)q(ectiv)o(ely)l(,)h(with) |
| f(the)g(sym)o(b)q(olic)h(constan)o(t)d Fr(TEXTURE)p 1441 |
| 2262 V 15 w(1D)h FC(or)g Fr(TEXTURE)p 1719 2262 V 14 |
| w(2D)g FC(to)332 2319 y(enable)i(the)e(one-dimensional)j(or)c(t)o(w)o |
| (o-dimensional)j(texture,)e(resp)q(ectiv)o(ely)l(.)21 |
| b(If)12 b(b)q(oth)332 2375 y(one-)h(and)h(t)o(w)o(o-dimensional)g |
| (textures)e(are)h(enabled,)i(the)e(t)o(w)o(o-dimensional)h(texture)332 |
| 2432 y(is)h(used.)21 b(If)14 b(all)i(texturing)f(is)g(disabled,)h(a)e |
| (rasterized)h(fragmen)o(t)f(is)h(passed)g(on)f(unal-)332 |
| 2488 y(tered)h(to)g(the)g(next)h(stage)e(of)h(the)h(GL)f(\(although)g |
| (its)h(texture)f(co)q(ordinates)g(ma)o(y)g(b)q(e)p eop |
| %%Page: 103 112 |
| 103 111 bop 120 137 a Fx(3.8.)34 b(TEXTURING)1037 b FC(103)p |
| 288 553 1159 2 v 287 610 2 57 v 427 593 a(Base)p 658 |
| 610 V 260 w Fr(REPLACE)p 1052 610 V 229 w(MODULATE)p |
| 1446 610 V 287 666 V 315 649 a FC(In)o(ternal)16 b(F)l(ormat)p |
| 658 666 V 51 w(T)l(exture)f(F)l(unction)p 1052 666 V |
| 51 w(T)l(exture)g(F)l(unction)p 1446 666 V 288 668 1159 |
| 2 v 288 676 V 287 733 2 57 v 419 716 a Fr(ALPHA)p 658 |
| 733 V 240 w Fy(R)804 723 y Fu(v)837 716 y FC(=)e Fy(R)920 |
| 723 y Fu(f)p 1052 733 V 1164 716 a Fy(R)1199 723 y Fu(v)1231 |
| 716 y FC(=)g Fy(R)1314 723 y Fu(f)p 1446 733 V 287 789 |
| V 658 789 V 768 772 a Fy(G)804 779 y Fu(v)837 772 y FC(=)g |
| Fy(G)921 779 y Fu(f)p 1052 789 V 1162 772 a Fy(G)1198 |
| 779 y Fu(v)1231 772 y FC(=)g Fy(G)1315 779 y Fu(f)p 1446 |
| 789 V 287 846 V 658 846 V 770 829 a Fy(B)804 836 y Fu(v)837 |
| 829 y FC(=)g Fy(B)919 836 y Fu(f)p 1052 846 V 1164 829 |
| a Fy(B)1198 836 y Fu(v)1231 829 y FC(=)g Fy(B)1313 836 |
| y Fu(f)p 1446 846 V 287 902 V 658 902 V 774 885 a Fy(A)808 |
| 892 y Fu(v)841 885 y FC(=)g Fy(A)923 892 y Fu(t)p 1052 |
| 902 V 1139 885 a Fy(A)1173 892 y Fu(v)1207 885 y FC(=)g |
| Fy(A)1289 892 y Fu(f)1311 885 y Fy(A)1345 892 y Fu(t)p |
| 1446 902 V 288 904 1159 2 v 287 960 2 57 v 376 943 a |
| Fr(LUMINANCE)p 658 960 V 201 w Fy(R)810 950 y Fu(v)843 |
| 943 y FC(=)g Fy(L)922 950 y Fu(t)p 1052 960 V 1141 943 |
| a Fy(R)1176 950 y Fu(v)1208 943 y FC(=)g Fy(R)1291 950 |
| y Fu(f)1313 943 y Fy(L)1344 950 y Fu(t)p 1446 960 V 287 |
| 1017 V 417 1000 a FC(\(or)i Fr(1)p FC(\))p 658 1017 V |
| 244 w Fy(G)811 1007 y Fu(v)843 1000 y FC(=)e Fy(L)922 |
| 1007 y Fu(t)p 1052 1017 V 1139 1000 a Fy(G)1175 1007 |
| y Fu(v)1208 1000 y FC(=)g Fy(G)1292 1007 y Fu(f)1315 |
| 1000 y Fy(L)1346 1007 y Fu(t)p 1446 1017 V 287 1073 V |
| 658 1073 V 775 1056 a Fy(B)809 1063 y Fu(v)843 1056 y |
| FC(=)g Fy(L)922 1063 y Fu(t)p 1052 1073 V 1141 1056 a |
| Fy(B)1175 1063 y Fu(v)1208 1056 y FC(=)g Fy(B)1290 1063 |
| y Fu(f)1313 1056 y Fy(L)1344 1063 y Fu(t)p 1446 1073 |
| V 287 1130 V 658 1130 V 770 1113 a Fy(A)804 1120 y Fu(v)837 |
| 1113 y FC(=)g Fy(A)919 1120 y Fu(f)p 1052 1130 V 1164 |
| 1113 a Fy(A)1198 1120 y Fu(v)1231 1113 y FC(=)g Fy(A)1313 |
| 1120 y Fu(f)p 1446 1130 V 288 1131 1159 2 v 287 1188 |
| 2 57 v 313 1171 a Fr(LUMINANCE)p 514 1171 14 2 v 14 w(ALPHA)p |
| 658 1188 2 57 v 140 w Fy(R)810 1178 y Fu(v)843 1171 y |
| FC(=)g Fy(L)922 1178 y Fu(t)p 1052 1188 V 1141 1171 a |
| Fy(R)1176 1178 y Fu(v)1208 1171 y FC(=)g Fy(R)1291 1178 |
| y Fu(f)1313 1171 y Fy(L)1344 1178 y Fu(t)p 1446 1188 |
| V 287 1244 V 417 1227 a FC(\(or)i Fr(2)p FC(\))p 658 |
| 1244 V 244 w Fy(G)811 1234 y Fu(v)843 1227 y FC(=)e Fy(L)922 |
| 1234 y Fu(t)p 1052 1244 V 1139 1227 a Fy(G)1175 1234 |
| y Fu(v)1208 1227 y FC(=)g Fy(G)1292 1234 y Fu(f)1315 |
| 1227 y Fy(L)1346 1234 y Fu(t)p 1446 1244 V 287 1301 V |
| 658 1301 V 775 1284 a Fy(B)809 1291 y Fu(v)843 1284 y |
| FC(=)g Fy(L)922 1291 y Fu(t)p 1052 1301 V 1141 1284 a |
| Fy(B)1175 1291 y Fu(v)1208 1284 y FC(=)g Fy(B)1290 1291 |
| y Fu(f)1313 1284 y Fy(L)1344 1291 y Fu(t)p 1446 1301 |
| V 287 1357 V 658 1357 V 774 1340 a Fy(A)808 1347 y Fu(v)841 |
| 1340 y FC(=)g Fy(A)923 1347 y Fu(t)p 1052 1357 V 1139 |
| 1340 a Fy(A)1173 1347 y Fu(v)1207 1340 y FC(=)g Fy(A)1289 |
| 1347 y Fu(f)1311 1340 y Fy(A)1345 1347 y Fu(t)p 1446 |
| 1357 V 288 1359 1159 2 v 287 1415 2 57 v 376 1398 a Fr(INTENSITY)p |
| 658 1415 V 207 w Fy(R)816 1405 y Fu(v)848 1398 y FC(=)g |
| Fy(I)916 1405 y Fu(t)p 1052 1415 V 1146 1398 a Fy(R)1181 |
| 1405 y Fu(v)1214 1398 y FC(=)g Fy(R)1297 1405 y Fu(f)1319 |
| 1398 y Fy(I)1339 1405 y Fu(t)p 1446 1415 V 287 1472 V |
| 658 1472 V 780 1455 a Fy(G)816 1462 y Fu(v)849 1455 y |
| FC(=)g Fy(I)917 1462 y Fu(t)p 1052 1472 V 1145 1455 a |
| Fy(G)1181 1462 y Fu(v)1214 1455 y FC(=)g Fy(G)1298 1462 |
| y Fu(f)1320 1455 y Fy(I)1340 1462 y Fu(t)p 1446 1472 |
| V 287 1528 V 658 1528 V 781 1511 a Fy(B)815 1518 y Fu(v)848 |
| 1511 y FC(=)g Fy(I)916 1518 y Fu(t)p 1052 1528 V 1146 |
| 1511 a Fy(B)1180 1518 y Fu(v)1214 1511 y FC(=)g Fy(B)1296 |
| 1518 y Fu(f)1319 1511 y Fy(I)1339 1518 y Fu(t)p 1446 |
| 1528 V 287 1585 V 658 1585 V 781 1568 a Fy(A)815 1575 |
| y Fu(v)848 1568 y FC(=)g Fy(I)916 1575 y Fu(t)p 1052 |
| 1585 V 1147 1568 a Fy(A)1181 1575 y Fu(v)1214 1568 y |
| FC(=)g Fy(A)1296 1575 y Fu(f)1318 1568 y Fy(I)1338 1575 |
| y Fu(t)p 1446 1585 V 288 1586 1159 2 v 287 1643 2 57 |
| v 441 1626 a Fr(RGB)p 658 1643 V 266 w Fy(R)808 1633 |
| y Fu(v)841 1626 y FC(=)g Fy(R)924 1633 y Fu(t)p 1052 |
| 1643 V 1139 1626 a Fy(R)1174 1633 y Fu(v)1206 1626 y |
| FC(=)g Fy(R)1289 1633 y Fu(f)1312 1626 y Fy(R)1347 1633 |
| y Fu(t)p 1446 1643 V 287 1699 V 417 1682 a FC(\(or)i |
| Fr(3)p FC(\))p 658 1699 V 241 w Fy(G)808 1689 y Fu(v)841 |
| 1682 y FC(=)e Fy(G)925 1689 y Fu(t)p 1052 1699 V 1137 |
| 1682 a Fy(G)1173 1689 y Fu(v)1206 1682 y FC(=)g Fy(G)1290 |
| 1689 y Fu(f)1312 1682 y Fy(G)1348 1689 y Fu(t)p 1446 |
| 1699 V 287 1756 V 658 1756 V 773 1739 a Fy(B)807 1746 |
| y Fu(v)841 1739 y FC(=)g Fy(B)923 1746 y Fu(t)p 1052 |
| 1756 V 1139 1739 a Fy(B)1173 1746 y Fu(v)1206 1739 y |
| FC(=)g Fy(B)1288 1746 y Fu(f)1312 1739 y Fy(B)1346 1746 |
| y Fu(t)p 1446 1756 V 287 1812 V 658 1812 V 770 1795 a |
| Fy(A)804 1802 y Fu(v)837 1795 y FC(=)g Fy(A)919 1802 |
| y Fu(f)p 1052 1812 V 1164 1795 a Fy(A)1198 1802 y Fu(v)1231 |
| 1795 y FC(=)g Fy(A)1313 1802 y Fu(f)p 1446 1812 V 288 |
| 1814 1159 2 v 287 1870 2 57 v 430 1853 a Fr(RGBA)p 658 |
| 1870 V 255 w Fy(R)808 1860 y Fu(v)841 1853 y FC(=)g Fy(R)924 |
| 1860 y Fu(t)p 1052 1870 V 1139 1853 a Fy(R)1174 1860 |
| y Fu(v)1206 1853 y FC(=)g Fy(R)1289 1860 y Fu(f)1312 |
| 1853 y Fy(R)1347 1860 y Fu(t)p 1446 1870 V 287 1927 V |
| 417 1910 a FC(\(or)i Fr(4)p FC(\))p 658 1927 V 241 w |
| Fy(G)808 1917 y Fu(v)841 1910 y FC(=)e Fy(G)925 1917 |
| y Fu(t)p 1052 1927 V 1137 1910 a Fy(G)1173 1917 y Fu(v)1206 |
| 1910 y FC(=)g Fy(G)1290 1917 y Fu(f)1312 1910 y Fy(G)1348 |
| 1917 y Fu(t)p 1446 1927 V 287 1983 V 658 1983 V 773 1966 |
| a Fy(B)807 1973 y Fu(v)841 1966 y FC(=)g Fy(B)923 1973 |
| y Fu(t)p 1052 1983 V 1139 1966 a Fy(B)1173 1973 y Fu(v)1206 |
| 1966 y FC(=)g Fy(B)1288 1973 y Fu(f)1312 1966 y Fy(B)1346 |
| 1973 y Fu(t)p 1446 1983 V 287 2040 V 658 2040 V 774 2023 |
| a Fy(A)808 2030 y Fu(v)841 2023 y FC(=)g Fy(A)923 2030 |
| y Fu(t)p 1052 2040 V 1139 2023 a Fy(A)1173 2030 y Fu(v)1207 |
| 2023 y FC(=)g Fy(A)1289 2030 y Fu(f)1311 2023 y Fy(A)1345 |
| 2030 y Fu(t)p 1446 2040 V 288 2041 1159 2 v 343 2118 |
| a FC(T)l(able)j(3.10:)j(Replace)e(and)e(mo)q(dulate)h(texture)f |
| (functions.)p eop |
| %%Page: 104 113 |
| 104 112 bop 332 137 a FC(104)727 b Fx(CHAPTER)16 b(3.)34 |
| b(RASTERIZA)l(TION)p 348 558 1462 2 v 347 614 2 57 v |
| 487 597 a FC(Base)p 718 614 V 356 w Fr(DECAL)p 1261 614 |
| V 435 w(BLEND)p 1809 614 V 347 671 V 376 654 a FC(In)o(ternal)15 |
| b(F)l(ormat)p 718 671 V 125 w(T)l(exture)h(F)l(unction)p |
| 1261 671 V 202 w(T)l(exture)f(F)l(unction)p 1809 671 |
| V 348 672 1462 2 v 348 681 V 347 737 2 57 v 479 720 a |
| Fr(ALPHA)p 718 737 V 305 w FC(unde\014ned)p 1261 737 |
| V 366 w Fy(R)1485 727 y Fu(v)1517 720 y FC(=)e Fy(R)1600 |
| 727 y Fu(f)p 1809 737 V 347 794 V 718 794 V 1261 794 |
| V 1448 777 a Fy(G)1484 784 y Fu(v)1517 777 y FC(=)g Fy(G)1601 |
| 784 y Fu(f)p 1809 794 V 347 850 V 718 850 V 1261 850 |
| V 1450 833 a Fy(B)1484 840 y Fu(v)1517 833 y FC(=)g Fy(B)1599 |
| 840 y Fu(f)p 1809 850 V 347 907 V 718 907 V 1261 907 |
| V 1425 890 a Fy(A)1459 897 y Fu(v)1493 890 y FC(=)g Fy(A)1575 |
| 897 y Fu(f)1597 890 y Fy(A)1631 897 y Fu(t)p 1809 907 |
| V 348 908 1462 2 v 347 965 2 57 v 436 948 a Fr(LUMINANCE)p |
| 718 965 V 260 w FC(unde\014ned)p 1261 965 V 209 w Fy(R)1328 |
| 955 y Fu(v)1361 948 y FC(=)g Fy(R)1444 955 y Fu(f)1466 |
| 948 y FC(\(1)c FB(\000)i Fy(L)1593 955 y Fu(t)1608 948 |
| y FC(\))e(+)i Fy(R)1716 955 y Fu(c)1733 948 y Fy(L)1764 |
| 955 y Fu(t)p 1809 965 V 347 1021 V 477 1004 a FC(\(or)k |
| Fr(1)p FC(\))p 718 1021 V 1261 1021 V 700 w Fy(G)1327 |
| 1011 y Fu(v)1360 1004 y FC(=)e Fy(G)1444 1011 y Fu(f)1467 |
| 1004 y FC(\(1)c FB(\000)i Fy(L)1594 1011 y Fu(t)1608 |
| 1004 y FC(\))f(+)h Fy(G)1718 1011 y Fu(c)1735 1004 y |
| Fy(L)1766 1011 y Fu(t)p 1809 1021 V 347 1078 V 718 1078 |
| V 1261 1078 V 1293 1061 a Fy(B)1327 1068 y Fu(v)1361 |
| 1061 y FC(=)i Fy(B)1443 1068 y Fu(f)1466 1061 y FC(\(1)c |
| FB(\000)i Fy(L)1593 1068 y Fu(t)1608 1061 y FC(\))e(+)i |
| Fy(B)1715 1068 y Fu(c)1733 1061 y Fy(L)1764 1068 y Fu(t)p |
| 1809 1078 V 347 1134 V 718 1134 V 1261 1134 V 1450 1117 |
| a Fy(A)1484 1124 y Fu(v)1517 1117 y FC(=)i Fy(A)1599 |
| 1124 y Fu(f)p 1809 1134 V 348 1136 1462 2 v 347 1192 |
| 2 57 v 373 1175 a Fr(LUMINANCE)p 574 1175 14 2 v 14 w(ALPHA)p |
| 718 1192 2 57 v 199 w FC(unde\014ned)p 1261 1192 V 209 |
| w Fy(R)1328 1182 y Fu(v)1361 1175 y FC(=)g Fy(R)1444 |
| 1182 y Fu(f)1466 1175 y FC(\(1)c FB(\000)i Fy(L)1593 |
| 1182 y Fu(t)1608 1175 y FC(\))e(+)i Fy(R)1716 1182 y |
| Fu(c)1733 1175 y Fy(L)1764 1182 y Fu(t)p 1809 1192 V |
| 347 1249 V 477 1232 a FC(\(or)k Fr(2)p FC(\))p 718 1249 |
| V 1261 1249 V 700 w Fy(G)1327 1239 y Fu(v)1360 1232 y |
| FC(=)e Fy(G)1444 1239 y Fu(f)1467 1232 y FC(\(1)c FB(\000)i |
| Fy(L)1594 1239 y Fu(t)1608 1232 y FC(\))f(+)h Fy(G)1718 |
| 1239 y Fu(c)1735 1232 y Fy(L)1766 1239 y Fu(t)p 1809 |
| 1249 V 347 1305 V 718 1305 V 1261 1305 V 1293 1288 a |
| Fy(B)1327 1295 y Fu(v)1361 1288 y FC(=)i Fy(B)1443 1295 |
| y Fu(f)1466 1288 y FC(\(1)c FB(\000)i Fy(L)1593 1295 |
| y Fu(t)1608 1288 y FC(\))e(+)i Fy(B)1715 1295 y Fu(c)1733 |
| 1288 y Fy(L)1764 1295 y Fu(t)p 1809 1305 V 347 1362 V |
| 718 1362 V 1261 1362 V 1425 1345 a Fy(A)1459 1352 y Fu(v)1493 |
| 1345 y FC(=)i Fy(A)1575 1352 y Fu(f)1597 1345 y Fy(A)1631 |
| 1352 y Fu(t)p 1809 1362 V 348 1363 1462 2 v 347 1420 |
| 2 57 v 436 1403 a Fr(INTENSITY)p 718 1420 V 260 w FC(unde\014ned)p |
| 1261 1420 V 220 w Fy(R)1339 1410 y Fu(v)1372 1403 y FC(=)g |
| Fy(R)1455 1410 y Fu(f)1477 1403 y FC(\(1)c FB(\000)i |
| Fy(I)1593 1410 y Fu(t)1608 1403 y FC(\))e(+)i Fy(R)1716 |
| 1410 y Fu(c)1733 1403 y Fy(I)1753 1410 y Fu(t)p 1809 |
| 1420 V 347 1476 V 718 1476 V 1261 1476 V 1302 1459 a |
| Fy(G)1338 1466 y Fu(v)1371 1459 y FC(=)i Fy(G)1455 1466 |
| y Fu(f)1478 1459 y FC(\(1)c FB(\000)i Fy(I)1594 1466 |
| y Fu(t)1608 1459 y FC(\))f(+)h Fy(G)1718 1466 y Fu(c)1735 |
| 1459 y Fy(I)1755 1466 y Fu(t)p 1809 1476 V 347 1533 V |
| 718 1533 V 1261 1533 V 1304 1516 a Fy(B)1338 1523 y Fu(v)1372 |
| 1516 y FC(=)i Fy(B)1454 1523 y Fu(f)1477 1516 y FC(\(1)c |
| FB(\000)i Fy(I)1593 1523 y Fu(t)1608 1516 y FC(\))e(+)i |
| Fy(B)1715 1523 y Fu(c)1733 1516 y Fy(I)1753 1523 y Fu(t)p |
| 1809 1533 V 347 1589 V 718 1589 V 1261 1589 V 1305 1572 |
| a Fy(A)1339 1579 y Fu(v)1372 1572 y FC(=)i Fy(A)1454 |
| 1579 y Fu(f)1477 1572 y FC(\(1)c FB(\000)i Fy(I)1593 |
| 1579 y Fu(t)1607 1572 y FC(\))f(+)h Fy(A)1715 1579 y |
| Fu(c)1732 1572 y Fy(I)1752 1579 y Fu(t)p 1809 1589 V |
| 348 1591 1462 2 v 347 1647 2 57 v 501 1630 a Fr(RGB)p |
| 718 1647 V 341 w Fy(R)943 1637 y Fu(v)976 1630 y FC(=)h |
| Fy(R)1058 1637 y Fu(t)p 1261 1647 V 1290 1630 a Fy(R)1325 |
| 1637 y Fu(v)1357 1630 y FC(=)h Fy(R)1440 1637 y Fu(f)1462 |
| 1630 y FC(\(1)d FB(\000)g Fy(R)1593 1637 y Fu(t)1608 |
| 1630 y FC(\))f(+)i Fy(R)1716 1637 y Fu(c)1733 1630 y |
| Fy(R)1768 1637 y Fu(t)p 1809 1647 V 347 1704 V 477 1687 |
| a FC(\(or)k Fr(3)p FC(\))p 718 1704 V 316 w Fy(G)943 |
| 1694 y Fu(v)976 1687 y FC(=)d Fy(G)1059 1694 y Fu(t)p |
| 1261 1704 V 1287 1687 a Fy(G)1323 1694 y Fu(v)1355 1687 |
| y FC(=)h Fy(G)1439 1694 y Fu(f)1462 1687 y FC(\(1)c FB(\000)i |
| Fy(G)1594 1694 y Fu(t)1608 1687 y FC(\))f(+)h Fy(G)1718 |
| 1694 y Fu(c)1735 1687 y Fy(G)1771 1694 y Fu(t)p 1809 |
| 1704 V 347 1760 V 718 1760 V 908 1743 a Fy(B)942 1750 |
| y Fu(v)976 1743 y FC(=)h Fy(B)1057 1750 y Fu(t)p 1261 |
| 1760 V 1290 1743 a Fy(B)1324 1750 y Fu(v)1357 1743 y |
| FC(=)h Fy(B)1439 1750 y Fu(f)1462 1743 y FC(\(1)d FB(\000)g |
| Fy(B)1592 1750 y Fu(t)1608 1743 y FC(\))f(+)i Fy(B)1715 |
| 1750 y Fu(c)1733 1743 y Fy(B)1767 1750 y Fu(t)p 1809 |
| 1760 V 347 1817 V 718 1817 V 904 1800 a Fy(A)938 1807 |
| y Fu(v)972 1800 y FC(=)i Fy(A)1054 1807 y Fu(f)p 1261 |
| 1817 V 1450 1800 a Fy(A)1484 1807 y Fu(v)1517 1800 y |
| FC(=)g Fy(A)1599 1807 y Fu(f)p 1809 1817 V 348 1818 1462 |
| 2 v 347 1875 2 57 v 490 1858 a Fr(RGBA)p 718 1875 V 168 |
| w Fy(R)781 1865 y Fu(v)813 1858 y FC(=)g Fy(R)896 1865 |
| y Fu(f)919 1858 y FC(\(1)c FB(\000)i Fy(A)1049 1865 y |
| Fu(t)1063 1858 y FC(\))f(+)h Fy(R)1172 1865 y Fu(t)1186 |
| 1858 y Fy(A)1220 1865 y Fu(t)p 1261 1875 V 1290 1858 |
| a Fy(R)1325 1865 y Fu(v)1357 1858 y FC(=)i Fy(R)1440 |
| 1865 y Fu(f)1462 1858 y FC(\(1)d FB(\000)g Fy(R)1593 |
| 1865 y Fu(t)1608 1858 y FC(\))f(+)i Fy(R)1716 1865 y |
| Fu(c)1733 1858 y Fy(R)1768 1865 y Fu(t)p 1809 1875 V |
| 347 1931 V 477 1914 a FC(\(or)k Fr(4)p FC(\))p 718 1931 |
| V 153 w Fy(G)780 1921 y Fu(v)813 1914 y FC(=)e Fy(G)897 |
| 1921 y Fu(f)919 1914 y FC(\(1)d FB(\000)g Fy(A)1049 1921 |
| y Fu(t)1064 1914 y FC(\))g(+)g Fy(G)1173 1921 y Fu(t)1188 |
| 1914 y Fy(A)1222 1921 y Fu(t)p 1261 1931 V 1287 1914 |
| a Fy(G)1323 1921 y Fu(v)1355 1914 y FC(=)j Fy(G)1439 |
| 1921 y Fu(f)1462 1914 y FC(\(1)c FB(\000)i Fy(G)1594 |
| 1921 y Fu(t)1608 1914 y FC(\))f(+)h Fy(G)1718 1921 y |
| Fu(c)1735 1914 y Fy(G)1771 1921 y Fu(t)p 1809 1931 V |
| 347 1988 V 718 1988 V 746 1971 a Fy(B)780 1978 y Fu(v)813 |
| 1971 y FC(=)i Fy(B)895 1978 y Fu(f)919 1971 y FC(\(1)c |
| FB(\000)i Fy(A)1049 1978 y Fu(t)1063 1971 y FC(\))f(+)h |
| Fy(B)1171 1978 y Fu(t)1186 1971 y Fy(A)1220 1978 y Fu(t)p |
| 1261 1988 V 1290 1971 a Fy(B)1324 1978 y Fu(v)1357 1971 |
| y FC(=)i Fy(B)1439 1978 y Fu(f)1462 1971 y FC(\(1)d FB(\000)g |
| Fy(B)1592 1978 y Fu(t)1608 1971 y FC(\))f(+)i Fy(B)1715 |
| 1978 y Fu(c)1733 1971 y Fy(B)1767 1978 y Fu(t)p 1809 |
| 1988 V 347 2044 V 718 2044 V 904 2027 a Fy(A)938 2034 |
| y Fu(v)972 2027 y FC(=)i Fy(A)1054 2034 y Fu(f)p 1261 |
| 2044 V 1425 2027 a Fy(A)1459 2034 y Fu(v)1493 2027 y |
| FC(=)g Fy(A)1575 2034 y Fu(f)1597 2027 y Fy(A)1631 2034 |
| y Fu(t)p 1809 2044 V 348 2046 1462 2 v 615 2123 a FC(T)l(able)j(3.11:)j |
| (Decal)d(and)f(blend)i(texture)e(functions.)p eop |
| %%Page: 105 114 |
| 105 113 bop 120 137 a Fx(3.9.)34 b(F)o(OG)1221 b FC(105)120 |
| 286 y(discarded\).)22 b(Otherwise,)15 b(a)g(texture)g(v)m(alue)i(is)f |
| (found)g(according)f(to)g(the)h(parameter)120 343 y(v)m(alues)i(of)e |
| (the)h(curren)o(tly)g(b)q(ound)h(texture)e(image)h(of)f(the)h |
| (appropriate)g(dimension-)120 399 y(alit)o(y)g(using)f(the)g(rules)h |
| (giv)o(en)f(in)h(sections)f(3.8.1)f(and)h(3.8.2.)k(This)c(texture)g(v)m |
| (alue)h(is)120 456 y(used)i(along)e(with)h(the)g(incoming)h(fragmen)o |
| (t)d(in)j(computing)f(the)g(texture)f(function)120 512 |
| y(indicated)k(b)o(y)d(the)g(curren)o(tly)h(b)q(ound)h(texture)e(en)o |
| (vironmen)o(t.)30 b(The)18 b(result)h(of)f(this)120 569 |
| y(function)j(replaces)f(the)g(incoming)h(fragmen)o(t's)d(R,)h(G,)g(B,)h |
| (and)f(A)h(v)m(alues.)34 b(These)120 625 y(are)14 b(the)f(color)h(v)m |
| (alues)h(passed)f(to)f(subsequen)o(t)h(op)q(erations.)20 |
| b(Other)14 b(data)f(asso)q(ciated)120 682 y(with)j(the)f(incoming)i |
| (fragmen)o(t)d(remain)h(unc)o(hanged,)h(except)g(that)e(the)i(texture)f |
| (co-)120 738 y(ordinates)h(ma)o(y)e(b)q(e)i(discarded.)191 |
| 795 y(The)j(required)g(state)f(is)h(t)o(w)o(o)e(bits)i(indicating)i |
| (whether)d(eac)o(h)h(of)f(one-)h(or)f(t)o(w)o(o-)120 |
| 851 y(dimensional)f(texturing)d(is)h(enabled)h(or)e(disabled.)21 |
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| h(as)f(if)h(the)f(stencil)i(tests)e(alw)o(a)o(ys)f(pass,)332 |
| 456 y(regardless)f(of)g(an)o(y)g(calls)h(to)f Fz(StencilOp)p |
| FC(.)332 581 y Fl(4.1.5)55 b(Depth)19 b(bu\013er)f(test)332 |
| 668 y FC(The)c(depth)g(bu\013er)f(test)g(discards)h(the)g(incoming)g |
| (fragmen)o(t)e(if)i(a)f(depth)h(comparison)332 725 y(fails.)26 |
| b(The)17 b(comparison)g(is)g(enabled)i(or)d(disabled)j(with)e(the)g |
| (generic)h Fz(Enable)g FC(and)332 781 y Fz(Disable)13 |
| b FC(commands)e(using)h(the)g(sym)o(b)q(olic)h(constan)o(t)d |
| Fr(DEPTH)p 1400 781 14 2 v 15 w(TEST)p FC(.)g(When)i(disabled,)332 |
| 838 y(the)k(depth)g(comparison)g(and)g(subsequen)o(t)h(p)q(ossible)h |
| (up)q(dates)e(to)f(the)h(depth)g(bu\013er)332 894 y(v)m(alue)i(are)f(b) |
| o(ypassed)g(and)g(the)g(fragmen)o(t)f(is)h(passed)h(to)e(the)h(next)g |
| (op)q(eration.)25 b(The)332 951 y(stencil)17 b(v)m(alue,)f(ho)o(w)o(ev) |
| o(er,)f(is)h(mo)q(di\014ed)h(as)e(indicated)i(b)q(elo)o(w)f(as)f(if)h |
| (the)f(depth)h(bu\013er)332 1007 y(test)c(passed.)19 |
| b(If)13 b(enabled,)h(the)e(comparison)h(tak)o(es)e(place)j(and)e(the)h |
| (depth)g(bu\013er)f(and)332 1064 y(stencil)17 b(v)m(alue)f(ma)o(y)f |
| (subsequen)o(tly)h(b)q(e)g(mo)q(di\014ed.)403 1121 y(The)f(comparison)g |
| (is)h(sp)q(eci\014ed)h(with)446 1217 y Fw(void)29 b Fz(DepthF)l(unc)p |
| FC(\()i Fw(enum)14 b Fv(func)h FC(\))g Fw(;)332 1314 |
| y FC(This)f(command)g(tak)o(es)f(a)g(single)i(sym)o(b)q(olic)g(constan) |
| o(t:)j(one)13 b(of)h Fr(NEVER)p FC(,)e Fr(ALWAYS)p FC(,)g |
| Fr(LESS)p FC(,)332 1370 y Fr(LEQUAL)p FC(,)g Fr(EQUAL)p |
| FC(,)g Fr(GREATER)p FC(,)g Fr(GEQUAL)p FC(,)g Fr(NOTEQUAL)p |
| FC(.)f(Accordingly)l(,)16 b(the)d(depth)h(bu\013er)g(test)332 |
| 1427 y(passes)k(nev)o(er,)f(alw)o(a)o(ys,)g(if)h(the)g(incoming)h |
| (fragmen)o(t's)c Fy(z)1336 1434 y Fu(w)1382 1427 y FC(v)m(alue)k(is)f |
| (less)g(than,)g(less)332 1483 y(than)11 b(or)f(equal)i(to,)e(equal)i |
| (to,)f(greater)f(than,)h(greater)f(than)g(or)h(equal)g(to,)g(or)f(not)h |
| (equal)332 1540 y(to)k(the)h(depth)h(v)m(alue)g(stored)f(at)f(the)h(lo) |
| q(cation)h(giv)o(en)f(b)o(y)g(the)g(incoming)h(fragmen)o(t's)332 |
| 1596 y(\()p Fy(x)376 1603 y Fu(w)404 1596 y Fy(;)8 b(y)447 |
| 1603 y Fu(w)475 1596 y FC(\))15 b(co)q(ordinates.)403 |
| 1653 y(If)j(the)g(depth)g(bu\013er)g(test)g(fails,)h(the)f(incoming)h |
| (fragmen)o(t)e(is)h(discarded.)29 b(The)332 1710 y(stencil)16 |
| b(v)m(alue)g(at)e(the)g(fragmen)o(t's)f(\()p Fy(x)988 |
| 1717 y Fu(w)1016 1710 y Fy(;)8 b(y)1059 1717 y Fu(w)1087 |
| 1710 y FC(\))14 b(co)q(ordinates)h(is)g(up)q(dated)g(according)g(to)332 |
| 1766 y(the)h(function)g(curren)o(tly)g(in)g(e\013ect)g(for)f(depth)h |
| (bu\013er)f(test)g(failure.)22 b(Otherwise,)16 b(the)332 |
| 1823 y(fragmen)o(t)f(con)o(tin)o(ues)h(to)f(the)g(next)h(op)q(eration)g |
| (and)g(the)f(v)m(alue)i(of)f(the)f(depth)h(bu\013er)332 |
| 1879 y(at)e(the)g(fragmen)o(t's)e(\()p Fy(x)729 1886 |
| y Fu(w)757 1879 y Fy(;)c(y)800 1886 y Fu(w)828 1879 y |
| FC(\))14 b(lo)q(cation)h(is)f(set)g(to)f(the)i(fragmen)o(t's)d |
| Fy(z)1520 1886 y Fu(w)1563 1879 y FC(v)m(alue.)20 b(In)15 |
| b(this)332 1935 y(case)e(the)f(stencil)i(v)m(alue)g(is)f(up)q(dated)g |
| (according)g(to)f(the)h(function)g(curren)o(tly)g(in)h(e\013ect)332 |
| 1992 y(for)h(depth)g(bu\013er)h(test)e(success.)403 2049 |
| y(The)g(necessary)f(state)g(is)h(an)g(eigh)o(t-v)m(alued)h(in)o(teger)f |
| (and)g(a)f(single)i(bit)g(indicating)332 2105 y(whether)23 |
| b(depth)g(bu\013ering)g(is)h(enabled)g(or)e(disabled.)44 |
| b(In)23 b(the)g(initial)i(state)c(the)332 2162 y(function)16 |
| b(is)g Fr(LESS)e FC(and)i(the)f(test)f(is)i(disabled.)403 |
| 2219 y(If)e(there)h(is)f(no)h(depth)g(bu\013er,)f(it)g(is)h(as)f(if)h |
| (the)f(depth)h(bu\013er)g(test)e(alw)o(a)o(ys)h(passes.)332 |
| 2345 y Fl(4.1.6)55 b(Blending)332 2432 y FC(Blending)16 |
| b(com)o(bines)f(the)f(incoming)i(fragmen)o(t's)c(R,)j(G,)e(B,)h(and)g |
| (A)h(v)m(alues)g(with)f(the)332 2488 y(R,)h(G,)e(B,)i(and)f(A)h(v)m |
| (alues)g(stored)f(in)i(the)e(framebu\013er)g(at)g(the)g(incoming)i |
| (fragmen)o(t's)p eop |
| %%Page: 113 122 |
| 113 121 bop 120 137 a Fx(4.1.)34 b(PER-FRA)o(GMENT)15 |
| b(OPERA)l(TIONS)621 b FC(113)p 341 242 1054 2 v 340 299 |
| 2 57 v 366 282 a(V)l(alue)p 786 299 V 335 w(Blend)17 |
| b(F)l(actors)p 1394 299 V 341 301 1054 2 v 341 309 V |
| 340 365 2 57 v 366 348 a Fr(ZERO)p 786 365 V 357 w FC(\(0)p |
| Fy(;)8 b FC(0)p Fy(;)g FC(0)p Fy(;)g FC(0)o(\))p 1394 |
| 365 V 341 367 1054 2 v 340 423 2 57 v 366 406 a Fr(ONE)p |
| 786 423 V 379 w FC(\(1)p Fy(;)g FC(1)p Fy(;)g FC(1)p |
| Fy(;)g FC(1)o(\))p 1394 423 V 341 425 1054 2 v 340 482 |
| 2 57 v 366 465 a Fr(DST)p 435 465 14 2 v 15 w(COLOR)p |
| 786 482 2 57 v 254 w Fy(R)846 472 y Fu(d)866 465 y Fy(;)g(G)923 |
| 472 y Fu(d)942 465 y Fy(;)g(B)997 472 y Fu(d)1017 465 |
| y Fy(;)g(A)1072 472 y Fu(d)p 1394 482 V 341 483 1054 |
| 2 v 340 540 2 57 v 366 523 a Fr(ONE)p 435 523 14 2 v |
| 15 w(MINUS)p 560 523 V 14 w(DST)p 640 523 V 16 w(COLOR)p |
| 786 540 2 57 v 48 w FC(\(1)p Fy(;)g FC(1)p Fy(;)g FC(1)p |
| Fy(;)g FC(1)o(\))f FB(\000)k FC(\()p Fy(R)1107 530 y |
| Fu(d)1126 523 y Fy(;)d(G)1183 530 y Fu(d)1202 523 y Fy(;)g(B)1257 |
| 530 y Fu(d)1277 523 y Fy(;)g(A)1332 530 y Fu(d)1352 523 |
| y FC(\))p 1394 540 V 341 541 1054 2 v 340 598 2 57 v |
| 366 581 a Fr(SRC)p 435 581 14 2 v 15 w(ALPHA)p 786 598 |
| 2 57 v 254 w FC(\()p Fy(A)863 588 y Fu(s)881 581 y Fy(;)g(A)936 |
| 588 y Fu(s)954 581 y Fy(;)g(A)1009 588 y Fu(s)1027 581 |
| y Fy(;)g(A)1082 588 y Fu(s)1100 581 y FC(\))p 1394 598 |
| V 341 599 1054 2 v 340 656 2 57 v 366 639 a Fr(ONE)p |
| 435 639 14 2 v 15 w(MINUS)p 560 639 V 14 w(SRC)p 640 |
| 639 V 16 w(ALPHA)p 786 656 2 57 v 48 w FC(\(1)p Fy(;)g |
| FC(1)p Fy(;)g FC(1)p Fy(;)g FC(1)o(\))f FB(\000)k FC(\()p |
| Fy(A)1106 646 y Fu(s)1124 639 y Fy(;)d(A)1179 646 y Fu(s)1197 |
| 639 y Fy(;)g(A)1252 646 y Fu(s)1269 639 y Fy(;)g(A)1324 |
| 646 y Fu(s)1342 639 y FC(\))p 1394 656 V 341 658 1054 |
| 2 v 340 714 2 57 v 366 697 a Fr(DST)p 435 697 14 2 v |
| 15 w(ALPHA)p 786 714 2 57 v 254 w FC(\()p Fy(A)863 704 |
| y Fu(d)883 697 y Fy(;)g(A)938 704 y Fu(d)958 697 y Fy(;)g(A)1013 |
| 704 y Fu(d)1032 697 y Fy(;)g(A)1087 704 y Fu(d)1107 697 |
| y FC(\))p 1394 714 V 341 716 1054 2 v 340 772 2 57 v |
| 366 755 a Fr(ONE)p 435 755 14 2 v 15 w(MINUS)p 560 755 |
| V 14 w(DST)p 640 755 V 16 w(ALPHA)p 786 772 2 57 v 48 |
| w FC(\(1)p Fy(;)g FC(1)p Fy(;)g FC(1)p Fy(;)g FC(1)o(\))f |
| FB(\000)k FC(\()p Fy(A)1106 762 y Fu(d)1126 755 y Fy(;)d(A)1181 |
| 762 y Fu(d)1200 755 y Fy(;)g(A)1255 762 y Fu(d)1275 755 |
| y Fy(;)g(A)1330 762 y Fu(d)1349 755 y FC(\))p 1394 772 |
| V 341 774 1054 2 v 340 830 2 57 v 366 813 a Fr(SRC)p |
| 435 813 14 2 v 15 w(ALPHA)p 560 813 V 14 w(SATURATE)p |
| 786 830 2 57 v 64 w FC(\()p Fy(f)r(;)g(f)r(;)g(f)r(;)g |
| FC(1\))p 1394 830 V 341 832 1054 2 v 120 909 a(T)l(able)20 |
| b(4.1:)26 b(V)l(alues)19 b(con)o(trolling)h(the)e(source)h(blending)i |
| (function)e(and)g(the)g(source)120 966 y(blending)f(v)m(alues)e(they)f |
| (compute.)20 b Fy(f)e FC(=)13 b(min)q(\()p Fy(A)960 973 |
| y Fu(s)978 966 y Fy(;)8 b FC(1)h FB(\000)i Fy(A)1111 |
| 973 y Fu(d)1131 966 y FC(\).)120 1144 y(\()p Fy(x)164 |
| 1151 y Fu(w)192 1144 y Fy(;)d(y)235 1151 y Fu(w)263 1144 |
| y FC(\))18 b(lo)q(cation.)29 b(This)19 b(blending)h(is)e(dep)q(enden)o |
| (t)i(on)e(the)g(incoming)h(fragmen)o(t's)120 1200 y(alpha)e(v)m(alue)g |
| (and)f(that)f(of)h(the)g(corresp)q(onding)h(curren)o(tly)f(stored)g |
| (pixel.)24 b(Blending)120 1257 y(applies)18 b(only)f(in)h(R)o(GBA)e(mo) |
| q(de;)h(in)h(color)e(index)i(mo)q(de)f(it)g(is)g(b)o(ypassed.)24 |
| b(Blending)120 1313 y(is)14 b(enabled)h(or)e(disabled)j(using)e |
| Fz(Enable)h FC(or)e Fz(Disable)h FC(with)g(the)g(sym)o(b)q(olic)h |
| (constan)o(t)120 1370 y Fr(BLEND)p FC(.)20 b(If)i(it)g(is)g(disabled,)i |
| (or)d(if)h(logical)g(op)q(eration)g(on)f(color)h(v)m(alues)g(is)g |
| (enabled)120 1426 y(\(section)16 b(4.1.8\),)d(pro)q(ceed)j(to)e(the)i |
| (next)f(stage.)191 1483 y(The)g(command)g(that)g(con)o(trols)g |
| (blending)i(is)234 1562 y Fw(void)30 b Fz(BlendF)l(unc)p |
| FC(\()g Fw(enum)15 b Fv(sr)n(c)p Fw(,)f(enum)h Fv(dst)g |
| FC(\))g Fw(;)120 1641 y Fv(sr)n(c)i FC(indicates)j(ho)o(w)d(to)g |
| (compute)h(a)g(source)f(blending)j(factor,)d(while)j |
| Fv(dst)d FC(indicates)120 1698 y(ho)o(w)k(to)g(compute)g(a)g |
| (destination)h(factor.)36 b(The)22 b(p)q(ossible)h(argumen)o(ts)d(and)h |
| (their)120 1754 y(corresp)q(onding)d(computed)g(source)f(and)g |
| (destination)h(factors)e(are)h(summarized)h(in)120 1811 |
| y(T)l(ables)c(4.1)f(and)g(4.2.)18 b(In)c(these)g(tables)g(a)e |
| (subscript)j(of)e Fy(s)g FC(indicates)i(a)e(v)m(alue)h(from)f(an)120 |
| 1867 y(incoming)h(fragmen)o(t;)e(one)g(of)g Fy(d)g FC(indicates)i(the)f |
| (corresp)q(onding)g(curren)o(t)f(framebu\013er)120 1924 |
| y(v)m(alue.)21 b(Division)c(of)d(a)h(quadruplet)h(b)o(y)f(a)g(scalar)g |
| (means)g(dividing)i(eac)o(h)e(elemen)o(t)h(b)o(y)120 |
| 1980 y(that)e(v)m(alue.)20 b(Addition)c(or)d(subtraction)h(of)f |
| (quadruplets)i(or)e(triplets)i(means)f(adding)120 2037 |
| y(or)h(subtracting)g(them)h(comp)q(onen)o(t-wise.)191 |
| 2093 y(The)21 b(computations)f(in)h(T)l(ables)h(4.1)d(and)i(4.2)e(are)h |
| (e\013ectiv)o(ely)i(carried)f(out)f(in)120 2149 y(\015oating-p)q(oin)o |
| (t)15 b(and)f(yield)h(\015oating-p)q(oin)o(t)f(blending)i(factors.)i |
| (Destination)c(\(frame-)120 2206 y(bu\013er\))h(comp)q(onen)o(ts)f |
| (referred)h(to)f(in)h(the)g(tables)g(are)f(tak)o(en)g(to)g(b)q(e)h |
| (\014xed-p)q(oin)o(t)h(v)m(al-)120 2262 y(ues)e(represen)o(ted)g |
| (according)g(to)f(the)g(sc)o(heme)h(giv)o(en)g(in)g(section)g(2.13.9)e |
| (\(Final)i(Color)120 2319 y(Pro)q(cessing\),)i(as)g(are)g(source)g |
| (\(fragmen)o(t\))e(comp)q(onen)o(ts.)22 b(An)o(y)16 b(implied)j(con)o |
| (v)o(ersion)120 2375 y(to)c(\015oating-p)q(oin)o(t)h(m)o(ust)e(lea)o(v) |
| o(e)i(0)f(and)g(1)g(in)o(v)m(arian)o(t.)191 2432 y(The)h(computed)g |
| (source)g(and)g(destination)h(blending)h(quadruplets)e(are)g(applied) |
| 120 2488 y(to)f(the)h(source)f(and)h(destination)g(R,)g(G,)f(B,)g(and)g |
| (A)h(v)m(alues)h(to)d(obtain)i(a)f(new)h(set)f(of)p eop |
| %%Page: 114 123 |
| 114 122 bop 332 137 a FC(114)208 b Fx(CHAPTER)15 b(4.)35 |
| b(FRA)o(GMENTS)15 b(AND)g(THE)g(FRAMEBUFFER)p 554 242 |
| 1052 2 v 553 299 2 57 v 579 282 a FC(V)l(alue)p 999 299 |
| V 335 w(Blend)i(factors)p 1604 299 V 554 301 1052 2 v |
| 554 309 V 553 365 2 57 v 579 348 a Fr(ZERO)p 999 365 |
| V 357 w FC(\(0)p Fy(;)8 b FC(0)p Fy(;)g FC(0)p Fy(;)g |
| FC(0)o(\))p 1604 365 V 554 367 1052 2 v 553 423 2 57 |
| v 579 406 a Fr(ONE)p 999 423 V 379 w FC(\(1)p Fy(;)g |
| FC(1)p Fy(;)g FC(1)p Fy(;)g FC(1)o(\))p 1604 423 V 554 |
| 425 1052 2 v 553 482 2 57 v 579 465 a Fr(SRC)p 648 465 |
| 14 2 v 15 w(COLOR)p 999 482 2 57 v 254 w Fy(R)1059 472 |
| y Fu(s)1077 465 y Fy(;)g(G)1134 472 y Fu(s)1151 465 y |
| Fy(;)g(B)1206 472 y Fu(s)1225 465 y Fy(;)g(A)1280 472 |
| y Fu(s)p 1604 482 V 554 483 1052 2 v 553 540 2 57 v 579 |
| 523 a Fr(ONE)p 648 523 14 2 v 15 w(MINUS)p 773 523 V |
| 14 w(SRC)p 853 523 V 15 w(COLOR)p 999 540 2 57 v 49 w |
| FC(\(1)p Fy(;)g FC(1)p Fy(;)g FC(1)p Fy(;)g FC(1)o(\))f |
| FB(\000)k FC(\()p Fy(R)1320 530 y Fu(s)1337 523 y Fy(;)d(G)1394 |
| 530 y Fu(s)1412 523 y Fy(;)g(B)1467 530 y Fu(s)1485 523 |
| y Fy(;)g(A)1540 530 y Fu(s)1557 523 y FC(\))p 1604 540 |
| V 554 541 1052 2 v 553 598 2 57 v 579 581 a Fr(SRC)p |
| 648 581 14 2 v 15 w(ALPHA)p 999 598 2 57 v 254 w FC(\()p |
| Fy(A)1076 588 y Fu(s)1094 581 y Fy(;)g(A)1149 588 y Fu(s)1167 |
| 581 y Fy(;)g(A)1222 588 y Fu(s)1240 581 y Fy(;)g(A)1295 |
| 588 y Fu(s)1312 581 y FC(\))p 1604 598 V 554 599 1052 |
| 2 v 553 656 2 57 v 579 639 a Fr(ONE)p 648 639 14 2 v |
| 15 w(MINUS)p 773 639 V 14 w(SRC)p 853 639 V 15 w(ALPHA)p |
| 999 656 2 57 v 49 w FC(\(1)p Fy(;)g FC(1)p Fy(;)g FC(1)p |
| Fy(;)g FC(1)o(\))f FB(\000)k FC(\()p Fy(A)1319 646 y |
| Fu(s)1337 639 y Fy(;)d(A)1392 646 y Fu(s)1410 639 y Fy(;)g(A)1465 |
| 646 y Fu(s)1482 639 y Fy(;)g(A)1537 646 y Fu(s)1555 639 |
| y FC(\))p 1604 656 V 554 658 1052 2 v 553 714 2 57 v |
| 579 697 a Fr(DST)p 648 697 14 2 v 15 w(ALPHA)p 999 714 |
| 2 57 v 254 w FC(\()p Fy(A)1076 704 y Fu(d)1096 697 y |
| Fy(;)g(A)1151 704 y Fu(d)1171 697 y Fy(;)g(A)1226 704 |
| y Fu(d)1245 697 y Fy(;)g(A)1300 704 y Fu(d)1320 697 y |
| FC(\))p 1604 714 V 554 716 1052 2 v 553 772 2 57 v 579 |
| 755 a Fr(ONE)p 648 755 14 2 v 15 w(MINUS)p 773 755 V |
| 14 w(DST)p 853 755 V 15 w(ALPHA)p 999 772 2 57 v 49 w |
| FC(\(1)p Fy(;)g FC(1)p Fy(;)g FC(1)p Fy(;)g FC(1)o(\))f |
| FB(\000)k FC(\()p Fy(A)1319 762 y Fu(d)1339 755 y Fy(;)d(A)1394 |
| 762 y Fu(d)1413 755 y Fy(;)g(A)1468 762 y Fu(d)1488 755 |
| y Fy(;)g(A)1543 762 y Fu(d)1562 755 y FC(\))p 1604 772 |
| V 554 774 1052 2 v 332 851 a(T)l(able)15 b(4.2:)j(V)l(alues)d(con)o |
| (trolling)g(the)f(destination)g(blending)i(function)f(and)f(the)g(des-) |
| 332 907 y(tination)i(blending)h(v)m(alues)g(they)e(compute.)332 |
| 1098 y(v)m(alues)j(that)f(are)f(sen)o(t)h(to)f(the)h(next)g(op)q |
| (eration.)26 b(Let)17 b(the)g(source)g(and)h(destination)332 |
| 1155 y(blending)d(quadruplets)f(b)q(e)g Fy(S)h FC(and)e |
| Fy(D)q FC(,)g(resp)q(ectiv)o(ely)l(.)21 b(Then)13 b(a)g(quadruplet)h |
| (of)e(v)m(alues)332 1211 y(is)k(computed)f(as)959 1272 |
| y Fy(C)992 1279 y Fu(s)1010 1272 y Fy(S)d FC(+)f Fy(C)1129 |
| 1279 y Fu(d)1148 1272 y Fy(D)q(;)332 1362 y FC(where)21 |
| b(m)o(ultiplication)j(of)c(quadruplets)i(means)f(m)o(ultiplying)i(them) |
| e(comp)q(onen)o(t-)332 1418 y(wise.)26 b(Then)17 b(eac)o(h)g(v)m(alue)h |
| (in)g(this)f(quadruplet)h(is)f(clamp)q(ed)i(to)d(2)1485 |
| 1401 y Fu(n)1519 1418 y FB(\000)c FC(1,)17 b(where)g |
| Fy(n)g FC(is)332 1474 y(the)j(n)o(um)o(b)q(er)g(of)f(bits)h(allo)q |
| (cated)g(to)f(that)g(color)h(comp)q(onen)o(t)f(in)i(the)e |
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| b(state)f(required)i(is)f(t)o(w)o(o)e(in)o(tegers)i(indicating)i(the)e |
| (source)g(and)g(destina-)332 1645 y(tion)f(blending)i(functions)f(and)e |
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| 1702 y(or)15 b(disabled.)21 b(The)16 b(initial)h(state)d(of)h(the)g |
| (blending)j(functions)d(is)h Fr(ONE)f FC(for)f(the)h(source)332 |
| 1758 y(function)e(and)f Fr(ZERO)g FC(for)f(the)h(destination)h |
| (function;)h(initially)l(,)h(blending)f(is)f(disabled.)403 |
| 1816 y(Blending)k(o)q(ccurs)f(once)g(for)f(eac)o(h)g(color)h(bu\013er)f |
| (curren)o(tly)h(enabled)h(for)e(writing)332 1873 y(\(section)j(4.2.1\)) |
| f(using)i(eac)o(h)f(bu\013er's)g(color)g(for)f Fy(C)1244 |
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| g(of)g(the)g(binary)g(p)q(oin)o(t,)g(where)g Fy(m)g FC(is)g(the)g(n)o |
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| (onen)o(t)i(in)g(the)f(framebu\013er;)h(call)g(eac)o(h)g(suc)o(h)f(v)m |
| (alue)i Fy(c)p FC(.)28 b(F)l(or)18 b(eac)o(h)g Fy(c)p |
| FC(,)332 2375 y(dithering)f(selects)f(a)f(v)m(alue)h |
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| 2382 y Fq(1)1132 2375 y FB(2)f(f)p FC(max)p FB(f)p FC(0)p |
| Fy(;)8 b FB(d)p Fy(c)p FB(e)h(\000)h FC(1)p FB(g)p Fy(;)e |
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| b(treat)d Fy(c)667 2439 y Fq(1)705 2432 y FC(as)g(a)h(\014xed)h(p)q |
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| b(This)19 b(selec-)332 2488 y(tion)d(ma)o(y)f(dep)q(end)i(on)e(the)h |
| Fy(x)851 2495 y Fu(w)895 2488 y FC(and)f Fy(y)1005 2495 |
| y Fu(w)1049 2488 y FC(co)q(ordinates)h(of)f(the)h(pixel.)22 |
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| %%Page: 115 124 |
| 115 123 bop 120 137 a Fx(4.1.)34 b(PER-FRA)o(GMENT)15 |
| b(OPERA)l(TIONS)621 b FC(115)120 286 y(mo)q(de,)14 b(the)f(same)g(rule) |
| h(applies)h(with)f Fy(c)f FC(b)q(eing)h(a)f(single)i(color)e(index.)21 |
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| f(appropriate.)191 459 y(Man)o(y)h(dithering)i(algorithms)f(are)g(p)q |
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| 572 y FC(and)16 b Fy(y)i FC(windo)o(w)d(co)q(ordinates.)22 |
| b(If)15 b(dithering)i(is)f(disabled,)h(then)f(eac)o(h)g(color)g(comp)q |
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| 120 684 y(corresp)q(onding)g(comp)q(onen)o(t)e(in)i(the)e |
| (framebu\013er;)h(a)f(color)g(index)i(is)f(rounded)g(to)f(the)120 |
| 741 y(nearest)j(in)o(teger)h(represen)o(table)g(in)g(the)f(color)g |
| (index)i(p)q(ortion)e(of)g(the)g(framebu\013er.)191 800 |
| y(Dithering)h(is)f(enabled)i(with)e Fz(Enable)h FC(and)g(disabled)g |
| (with)g Fz(Disable)g FC(using)g(the)120 857 y(sym)o(b)q(olic)i(constan) |
| o(t)e Fr(DITHER)p FC(.)f(The)h(state)g(required)i(is)f(th)o(us)f(a)g |
| (single)i(bit.)24 b(Initially)l(,)120 913 y(dithering)17 |
| b(is)f(enabled.)120 1051 y Fl(4.1.8)56 b(Logical)17 b(Op)r(eration)120 |
| 1143 y FC(Finally)l(,)e(a)d(logical)i(op)q(eration)f(is)h(applied)g(b)q |
| (et)o(w)o(een)g(the)e(incoming)i(fragmen)o(t's)e(color)120 |
| 1199 y(or)19 b(index)h(v)m(alues)f(and)g(the)g(color)g(or)f(index)i(v)m |
| (alues)g(stored)e(at)g(the)h(corresp)q(onding)120 1256 |
| y(lo)q(cation)13 b(in)g(the)f(framebu\013er.)18 b(The)12 |
| b(result)g(replaces)h(the)f(v)m(alues)h(in)f(the)g(framebu\013er)120 |
| 1312 y(at)k(the)g(fragmen)o(t's)f(\()p Fy(x;)8 b(y)r |
| FC(\))14 b(co)q(ordinates.)23 b(The)17 b(logical)g(op)q(eration)f(on)g |
| (color)h(indices)120 1369 y(is)d(enabled)h(or)e(disabled)j(with)e |
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| (constan)o(t)120 1425 y Fr(INDEX)p 233 1425 14 2 v 15 |
| w(LOGIC)p 358 1425 V 15 w(OP)p FC(.)i(\(F)l(or)f(compatibilit)o(y)k |
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| 1481 y(stan)o(t)e Fr(LOGIC)p 350 1481 V 15 w(OP)h FC(ma)o(y)f(also)h(b) |
| q(e)h(used.\))26 b(The)17 b(logical)h(op)q(eration)g(on)f(color)g(v)m |
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| (constan)o(t)120 1594 y Fr(COLOR)p 233 1594 V 15 w(LOGIC)p |
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| (is)h(selected)g(b)o(y)234 1815 y Fw(void)30 b Fz(LogicOp)p |
| FC(\()i Fw(enum)14 b Fv(op)i FC(\))f Fw(;)120 1921 y |
| Fv(op)i FC(is)f(a)g(sym)o(b)q(olic)h(constan)o(t;)e(the)i(p)q(ossible)g |
| (constan)o(ts)e(and)i(corresp)q(onding)g(op)q(era-)120 |
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| (the)g(X)f(windo)o(w)g(system.)191 2206 y(Logical)25 |
| b(op)q(erations)e(are)h(p)q(erformed)f(indep)q(enden)o(tl)q(y)j(for)d |
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| 2488 y(op)q(eration)i(to)e(b)q(e)i(giv)o(en)g(b)o(y)f |
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| %%Page: 116 125 |
| 116 124 bop 332 137 a FC(116)208 b Fx(CHAPTER)15 b(4.)35 |
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| FC(\))p 1387 809 V 770 865 V 795 848 a Fr(EQUIV)p 1137 |
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| 1204 V 771 1205 618 2 v 371 1283 a(T)l(able)g(4.3:)j(Argumen)o(ts)14 |
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| %%Page: 117 126 |
| 117 125 bop 120 137 a Fx(4.2.)34 b(WHOLE)16 b(FRAMEBUFFER)f(OPERA)l |
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| Fr(AUX0)d FC(+)g Fy(i)p FC(.)20 b(The)15 b(constan)o(ts)g(and)120 |
| 1437 y(the)k(bu\013ers)f(they)g(indicate)i(are)e(summarized)h(in)g(T)l |
| (able)g(4.4.)28 b(If)18 b Fz(Dra)o(wBu\013er)f FC(is)120 |
| 1493 y(is)g(supplied)h(with)e(a)f(constan)o(t)g(\(other)g(than)g |
| Fr(NONE)p FC(\))g(that)f(do)q(es)i(not)g(indicate)h(an)o(y)e(of)120 |
| 1550 y(the)j(color)f(bu\013ers)g(allo)q(cated)i(to)e(the)g(GL)g(con)o |
| (text,)g(the)h(error)e Fr(INVALID)p 1407 1550 14 2 v |
| 15 w(OPERATION)120 1606 y FC(results.)191 1674 y(Indicating)d(a)f |
| (bu\013er)g(or)f(bu\013ers)h(using)g Fz(Dra)o(wBu\013er)f |
| FC(causes)h(subsequen)o(t)g(pixel)120 1731 y(color)20 |
| b(v)m(alue)i(writes)e(to)f(a\013ect)g(the)i(indicated)g(bu\013ers.)35 |
| b(If)20 b(more)g(than)g(one)g(color)120 1787 y(bu\013er)14 |
| b(is)h(selected)g(for)e(dra)o(wing,)h(blending)i(and)e(logical)i(op)q |
| (erations)e(are)f(computed)120 1844 y(and)22 b(applied)h(indep)q |
| (endently)h(for)d(eac)o(h)g(bu\013er.)39 b(Calling)23 |
| b Fz(Dra)o(wBu\013er)d FC(with)i(a)120 1900 y(v)m(alue)17 |
| b(of)e Fr(NONE)f FC(inhibits)j(the)f(writing)f(of)g(color)g(v)m(alues)i |
| (to)d(an)o(y)h(bu\013er.)191 1968 y(Monoscopic)c(con)o(texts)g(include) |
| i(only)f(left)f(bu\013ers,)g(while)i(stereoscopic)e(con)o(texts)120 |
| 2025 y(include)j(b)q(oth)e(left)g(and)g(righ)o(t)g(bu\013ers.)18 |
| b(Lik)o(ewise,)c(single)f(bu\013ered)f(con)o(texts)f(include)120 |
| 2081 y(only)g(fron)o(t)f(bu\013ers,)h(while)g(double)h(bu\013ered)f |
| (con)o(texts)f(include)i(b)q(oth)f(fron)o(t)e(and)i(bac)o(k)120 |
| 2138 y(bu\013ers.)20 b(The)c(t)o(yp)q(e)f(of)g(con)o(text)f(is)i |
| (selected)g(at)f(GL)g(initialization.)191 2206 y(The)g(state)f |
| (required)h(to)f(handle)i(bu\013er)f(selection)h(is)f(a)f(set)h(of)f |
| (up)h(to)f(4)9 b(+)g Fy(n)15 b FC(bits.)120 2262 y(4)k(bits)g(indicate) |
| h(if)g(the)e(fron)o(t)g(left)h(bu\013er,)h(the)e(fron)o(t)g(righ)o(t)h |
| (bu\013er,)g(the)g(bac)o(k)f(left)120 2319 y(bu\013er,)f(or)f(the)h |
| (bac)o(k)f(righ)o(t)g(bu\013er,)h(are)f(enabled)i(for)e(color)h |
| (writing.)24 b(The)17 b(other)f Fy(n)120 2375 y FC(bits)i(indicate)h |
| (whic)o(h)f(of)e(the)i(auxiliary)g(bu\013ers)f(is)h(enabled)g(for)f |
| (color)g(writing.)26 b(In)120 2432 y(the)16 b(initial)i(state,)d(the)g |
| (fron)o(t)g(bu\013er)h(or)f(bu\013ers)g(are)h(enabled)h(if)f(there)g |
| (are)f(no)h(bac)o(k)120 2488 y(bu\013ers;)f(otherwise,)g(only)h(the)f |
| (bac)o(k)g(bu\013er)g(or)g(bu\013ers)g(are)g(enabled.)p |
| eop |
| %%Page: 118 127 |
| 118 126 bop 332 137 a FC(118)208 b Fx(CHAPTER)15 b(4.)35 |
| b(FRA)o(GMENTS)15 b(AND)g(THE)g(FRAMEBUFFER)332 286 y |
| Fl(4.2.2)55 b(Fine)18 b(Con)n(trol)i(of)e(Bu\013er)g(Up)r(dates)332 |
| 378 y FC(F)l(our)e(commands)h(are)f(used)h(to)f(mask)g(the)h(writing)g |
| (of)g(bits)g(to)f(eac)o(h)g(of)g(the)h(logical)332 434 |
| y(framebu\013ers)i(after)g(all)i(p)q(er-fragmen)o(t)e(op)q(erations)h |
| (ha)o(v)o(e)f(b)q(een)i(p)q(erformed.)33 b(The)332 491 |
| y(commands)446 596 y Fw(void)c Fz(IndexMask)p FC(\()g |
| Fw(uint)15 b Fv(mask)g FC(\))g Fw(;)446 653 y(void)58 |
| b Fz(ColorMask)p FC(\()f Fw(boolean)29 b Fv(r)p Fw(,)k(boolean)28 |
| b Fv(g)p Fw(,)33 b(boolean)28 b Fv(b)p Fw(,)514 709 y(boolean)14 |
| b Fv(a)h FC(\))g Fw(;)332 815 y FC(con)o(trol)f(the)g(color)f(bu\013er) |
| h(or)g(bu\013ers)f(\(dep)q(ending)j(on)e(whic)o(h)h(bu\013ers)e(are)h |
| (curren)o(tly)332 871 y(indicated)19 b(for)d(writing\).)25 |
| b(The)18 b(least)f(signi\014can)o(t)h Fy(n)f FC(bits)g(of)g |
| Fv(mask)p FC(,)g(where)g Fy(n)g FC(is)g(the)332 928 y(n)o(um)o(b)q(er)g |
| (of)f(bits)h(in)h(a)e(color)h(index)h(bu\013er,)e(sp)q(ecify)i(a)e |
| (mask.)24 b(Where)17 b(a)f(1)g(app)q(ears)332 984 y(in)h(this)g(mask,)f |
| (the)h(corresp)q(onding)g(bit)g(in)g(the)g(color)f(index)i(bu\013er)e |
| (\(or)g(bu\013ers\))g(is)332 1041 y(written;)d(where)h(a)e(0)h(app)q |
| (ears,)g(the)g(bit)g(is)h(not)e(written.)20 b(This)13 |
| b(mask)g(applies)h(only)g(in)332 1097 y(color)f(index)h(mo)q(de.)19 |
| b(In)13 b(R)o(GBA)g(mo)q(de,)g Fz(ColorMask)f FC(is)i(used)f(to)f(mask) |
| g(the)h(writing)332 1154 y(of)g(R,)h(G,)f(B)g(and)h(A)g(v)m(alues)h(to) |
| e(the)g(color)h(bu\013er)g(or)f(bu\013ers.)19 b Fv(r)p |
| FC(,)14 b Fv(g)p FC(,)f Fv(b)p FC(,)g(and)h Fv(a)g FC(indicate)332 |
| 1210 y(whether)19 b(R,)f(G,)f(B,)h(or)g(A)g(v)m(alues,)i(resp)q(ectiv)o |
| (ely)l(,)h(are)d(written)g(or)g(not)g(\(a)f(v)m(alue)j(of)332 |
| 1267 y Fr(TRUE)13 b FC(means)h(that)g(the)g(corresp)q(onding)h(v)m |
| (alue)g(is)g(written\).)k(In)c(the)f(initial)i(state,)e(all)332 |
| 1323 y(bits)g(\(in)g(color)f(index)i(mo)q(de\))e(and)g(all)i(color)e(v) |
| m(alues)h(\(in)g(R)o(GBA)g(mo)q(de\))f(are)g(enabled)332 |
| 1380 y(for)i(writing.)403 1439 y(The)g(depth)g(bu\013er)g(can)g(b)q(e)h |
| (enabled)g(or)f(disabled)i(for)d(writing)h Fy(z)1544 |
| 1446 y Fu(w)1588 1439 y FC(v)m(alues)h(using)446 1545 |
| y Fw(void)29 b Fz(DepthMask)p FC(\()h Fw(boolean)14 b |
| Fv(mask)h FC(\))g Fw(;)332 1650 y FC(If)h Fv(mask)g FC(is)h(non-zero,)f |
| (the)g(depth)h(bu\013er)f(is)g(enabled)i(for)d(writing;)i(otherwise,)f |
| (it)g(is)332 1707 y(disabled.)22 b(In)16 b(the)f(initial)i(state,)d |
| (the)h(depth)h(bu\013er)f(is)h(enabled)h(for)d(writing.)403 |
| 1766 y(The)h(command)446 1872 y Fw(void)29 b Fz(StencilMask)p |
| FC(\()i Fw(uint)15 b Fv(mask)g FC(\))g Fw(;)332 1977 |
| y FC(con)o(trols)21 b(the)h(writing)g(of)g(particular)g(bits)g(in)o(to) |
| g(the)g(stencil)h(planes.)40 b(The)22 b(least)332 2034 |
| y(signi\014can)o(t)16 b Fy(s)f FC(bits)h(of)e Fv(mask)h |
| FC(comprise)g(an)g(in)o(teger)g(mask)g(\()p Fy(s)g FC(is)g(the)g(n)o |
| (um)o(b)q(er)g(of)g(bits)332 2090 y(in)k(the)f(stencil)i(bu\013er\),)e |
| (just)g(as)g(for)g Fz(IndexMask)p FC(.)27 b(The)18 b(initial)j(state)c |
| (is)i(for)e(the)332 2146 y(stencil)g(plane)f(mask)f(to)f(b)q(e)i(all)g |
| (ones.)403 2206 y(The)c(state)f(required)i(for)e(the)h(v)m(arious)h |
| (masking)f(op)q(erations)g(is)h(t)o(w)o(o)d(in)o(tegers)i(and)332 |
| 2262 y(a)19 b(bit:)27 b(an)19 b(in)o(teger)g(for)g(color)g(indices,)i |
| (an)e(in)o(teger)g(for)f(stencil)j(v)m(alues,)f(and)f(a)g(bit)332 |
| 2319 y(for)e(depth)h(v)m(alues.)28 b(A)17 b(set)h(of)f(four)g(bits)h |
| (is)g(also)f(required)i(indicating)g(whic)o(h)f(color)332 |
| 2375 y(comp)q(onen)o(ts)f(of)g(an)g(R)o(GBA)g(v)m(alue)h(should)g(b)q |
| (e)g(written.)25 b(In)18 b(the)f(initial)i(state,)d(the)332 |
| 2432 y(in)o(teger)e(masks)e(are)h(all)h(ones)g(as)e(are)h(the)h(bits)f |
| (con)o(trolling)i(depth)e(v)m(alue)i(and)e(R)o(GBA)332 |
| 2488 y(comp)q(onen)o(t)i(writing.)p eop |
| %%Page: 119 128 |
| 119 127 bop 120 137 a Fx(4.2.)34 b(WHOLE)16 b(FRAMEBUFFER)f(OPERA)l |
| (TIONS)452 b FC(119)120 286 y Fl(4.2.3)56 b(Clearing)18 |
| b(the)g(Bu\013ers)120 373 y FC(The)e(GL)f(pro)o(vides)h(a)f(means)g |
| (for)g(setting)g(p)q(ortions)g(of)g(ev)o(ery)g(pixel)i(in)f(a)f |
| (particular)120 430 y(bu\013er)h(to)e(the)h(same)g(v)m(alue.)21 |
| b(The)16 b(argumen)o(t)e(to)234 526 y Fw(void)30 b Fz(Clear)p |
| FC(\()g Fw(bitfield)14 b Fv(buf)h FC(\))g Fw(;)120 622 |
| y FC(is)36 b(the)f(bit)o(wise)g(OR)h(of)e(a)h(n)o(um)o(b)q(er)g(of)f(v) |
| m(alues)i(indicating)h(whic)o(h)f(bu\013ers)120 679 y(are)26 |
| b(to)g(b)q(e)h(cleared.)54 b(The)27 b(v)m(alues)g(are)f |
| Fr(COLOR)p 1003 679 14 2 v 15 w(BUFFER)p 1150 679 V 14 |
| w(BIT)p FC(,)g Fr(DEPTH)p 1379 679 V 14 w(BUFFER)p 1525 |
| 679 V 15 w(BIT)p FC(,)120 735 y Fr(STENCIL)p 277 735 |
| V 15 w(BUFFER)p 424 735 V 14 w(BIT)p FC(,)17 b(and)h |
| Fr(ACCUM)p 735 735 V 15 w(BUFFER)p 882 735 V 14 w(BIT)p |
| FC(,)f(indicating)j(the)d(bu\013ers)h(curren)o(tly)120 |
| 792 y(enabled)f(for)d(color)g(writing,)h(the)g(depth)h(bu\013er,)e(the) |
| h(stencil)h(bu\013er,)e(and)h(the)g(accu-)120 848 y(m)o(ulation)h |
| (bu\013er)g(\(see)f(b)q(elo)o(w\),)g(resp)q(ectiv)o(ely)l(.)22 |
| b(The)16 b(v)m(alue)h(to)d(whic)o(h)i(eac)o(h)g(bu\013er)f(is)120 |
| 905 y(cleared)g(dep)q(ends)g(on)e(the)g(setting)h(of)f(the)g(clear)h(v) |
| m(alue)h(for)d(that)h(bu\013er.)19 b(If)14 b(the)f(mask)120 |
| 961 y(is)k(not)f(a)g(bit)o(wise)h(OR)h(of)e(the)g(sp)q(eci\014ed)i(v)m |
| (alues,)g(then)f(the)f(error)g Fr(INVALID)p 1448 961 |
| V 14 w(VALUE)f FC(is)120 1018 y(generated.)234 1114 y |
| Fw(void)20 b Fz(ClearColor)p FC(\()g Fw(clampf)9 b Fv(r)p |
| Fw(,)i(clampf)f Fv(g)p Fw(,)h(clampf)e Fv(b)p Fw(,)i(clampf)e |
| Fv(a)h FC(\))g Fw(;)120 1210 y FC(sets)h(the)g(clear)g(v)m(alue)h(for)e |
| (the)h(color)f(bu\013ers)h(in)h(R)o(GBA)e(mo)q(de.)19 |
| b(Eac)o(h)11 b(of)f(the)h(sp)q(eci\014ed)120 1267 y(comp)q(onen)o(ts)19 |
| b(is)g(clamp)q(ed)h(to)e([0)p Fy(;)8 b FC(1])16 b(and)j(con)o(v)o |
| (erted)f(to)g(\014xed-p)q(oin)o(t)h(according)g(to)120 |
| 1323 y(the)d(rules)g(of)e(section)i(2.13.9.)234 1419 |
| y Fw(void)30 b Fz(ClearIndex)p FC(\()f Fw(float)15 b |
| Fv(index)g FC(\))g Fw(;)120 1515 y FC(sets)20 b(the)g(clear)h(color)f |
| (index.)36 b Fv(index)19 b FC(is)i(con)o(v)o(erted)f(to)f(a)h |
| (\014xed-p)q(oin)o(t)h(v)m(alue)g(with)120 1572 y(unsp)q(eci\014ed)d |
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| (in)o(teger)h(part)e(of)h(this)120 1628 y(v)m(alue)i(is)e(then)h(mask)o |
| (ed)e(with)i(2)675 1612 y Fu(m)717 1628 y FB(\000)11 |
| b FC(1,)j(where)h Fy(m)g FC(is)h(the)f(n)o(um)o(b)q(er)g(of)g(bits)g |
| (in)h(a)f(color)120 1685 y(index)i(v)m(alue)f(stored)f(in)h(the)f |
| (framebu\013er.)234 1781 y Fw(void)30 b Fz(ClearDepth)p |
| FC(\()g Fw(clampd)15 b Fv(d)g FC(\))g Fw(;)120 1877 y |
| FC(tak)o(es)21 b(a)h(\015oating-p)q(oin)o(t)g(v)m(alue)h(that)f(is)g |
| (clamp)q(ed)h(to)e(the)h(range)g([0)p Fy(;)8 b FC(1])19 |
| b(and)j(con-)120 1934 y(v)o(erted)c(to)g(\014xed-p)q(oin)o(t)h |
| (according)g(to)f(the)g(rules)h(for)e(a)h(windo)o(w)h |
| Fy(z)h FC(v)m(alue)f(giv)o(en)g(in)120 1990 y(section)d(2.10.1.)i |
| (Similarly)l(,)234 2087 y Fw(void)30 b Fz(ClearStencil)p |
| FC(\()i Fw(int)14 b Fv(s)h FC(\))g Fw(;)120 2183 y FC(tak)o(es)d(a)h |
| (single)h(in)o(teger)f(argumen)o(t)f(that)g(is)h(the)g(v)m(alue)h(to)e |
| (whic)o(h)h(to)f(clear)h(the)g(stencil)120 2239 y(bu\013er.)20 |
| b Fv(s)15 b FC(is)h(mask)o(ed)f(to)f(the)h(n)o(um)o(b)q(er)h(of)f |
| (bitplanes)h(in)g(the)g(stencil)g(bu\013er.)234 2335 |
| y Fw(void)30 b Fz(ClearAccum)p FC(\()g Fw(float)14 b |
| Fv(r)p Fw(,)h(float)g Fv(g)p Fw(,)g(float)f Fv(b)p Fw(,)h(float)f |
| Fv(a)i FC(\))f Fw(;)120 2432 y FC(tak)o(es)i(four)g(\015oating-p)q(oin) |
| o(t)h(argumen)o(ts)e(that)g(are)h(the)h(v)m(alues,)g(in)g(order,)f(to)g |
| (whic)o(h)120 2488 y(to)g(set)h(the)f(R,)h(G,)f(B,)g(and)h(A)g(v)m |
| (alues)g(of)g(the)f(accum)o(ulation)i(bu\013er)e(\(see)h(the)g(next)p |
| eop |
| %%Page: 120 129 |
| 120 128 bop 332 137 a FC(120)208 b Fx(CHAPTER)15 b(4.)35 |
| b(FRA)o(GMENTS)15 b(AND)g(THE)g(FRAMEBUFFER)332 286 y |
| FC(section\).)20 b(These)14 b(v)m(alues)i(are)d(clamp)q(ed)j(to)d(the)i |
| (range)e([)p FB(\000)p FC(1)p Fy(;)8 b FC(1])13 b(when)h(they)h(are)e |
| (sp)q(ec-)332 343 y(i\014ed.)403 399 y(When)g Fz(Clear)g |
| FC(is)g(called,)i(the)d(only)i(p)q(er-fragmen)o(t)e(op)q(erations)h |
| (that)f(are)h(applied)332 456 y(\(if)g(enabled\))g(are)g(the)f(pixel)i |
| (o)o(wnership)g(test,)e(the)g(scissor)h(test,)f(and)h(dithering.)20 |
| b(The)332 512 y(masking)14 b(op)q(erations)h(describ)q(ed)h(in)f(the)f |
| (last)g(section)h(\(4.2.2\))d(are)i(also)g(e\013ectiv)o(e.)20 |
| b(If)332 569 y(a)15 b(bu\013er)g(is)h(not)f(presen)o(t,)f(then)i(a)f |
| Fz(Clear)g FC(directed)i(at)d(that)h(bu\013er)g(has)g(no)g(e\013ect.) |
| 403 625 y(The)d(state)f(required)h(for)f(clearing)i(is)f(a)g(clear)g(v) |
| m(alue)h(for)e(eac)o(h)h(of)f(the)h(color)g(bu\013er,)332 |
| 682 y(the)17 b(depth)h(bu\013er,)f(the)g(stencil)h(bu\013er,)g(and)f |
| (the)g(accum)o(ulation)h(bu\013er.)25 b(Initially)l(,)332 |
| 738 y(the)17 b(R)o(GBA)g(color)g(clear)g(v)m(alue)h(is)f(\(0,0,0,0\),)d |
| (the)j(clear)h(color)e(index)j(is)e(0,)f(and)h(the)332 |
| 795 y(stencil)23 b(bu\013er)e(and)h(accum)o(ulation)g(bu\013er)f(clear) |
| h(v)m(alues)g(are)f(all)h(0.)38 b(The)22 b(depth)332 |
| 851 y(bu\013er)15 b(clear)h(v)m(alue)g(is)g(initially)i(1.0.)332 |
| 973 y Fl(4.2.4)55 b(The)19 b(Accum)n(ulation)e(Bu\013er)332 |
| 1059 y FC(Eac)o(h)11 b(p)q(ortion)g(of)f(a)h(pixel)h(in)g(the)f(accum)o |
| (ulation)h(bu\013er)e(consists)i(of)e(four)g(v)m(alues:)19 |
| b(one)332 1115 y(for)12 b(eac)o(h)g(of)g(R,)h(G,)f(B,)g(and)g(A.)h(The) |
| f(accum)o(ulation)i(bu\013er)e(is)h(con)o(trolled)g(exclusiv)o(ely)332 |
| 1171 y(through)i(the)g(use)h(of)446 1265 y Fw(void)29 |
| b Fz(Accum)p FC(\()h Fw(enum)15 b Fv(op)p Fw(,)g(float)g |
| Fv(value)g FC(\))g Fw(;)332 1359 y FC(\(except)i(for)f(clearing)i |
| (it\).)25 b Fv(op)17 b FC(is)h(a)e(sym)o(b)q(olic)i(constan)o(t)e |
| (indicating)j(an)e(accum)o(ula-)332 1416 y(tion)f(bu\013er)g(op)q |
| (eration,)g(and)g Fv(value)g FC(is)g(a)g(\015oating-p)q(oin)o(t)g(v)m |
| (alue)h(to)e(b)q(e)i(used)f(in)h(that)332 1472 y(op)q(eration.)j(The)c |
| (p)q(ossible)h(op)q(erations)e(are)g Fr(ACCUM)p FC(,)f |
| Fr(LOAD)p FC(,)f Fr(RETURN)p FC(,)h Fr(MULT)p FC(,)g(and)h |
| Fr(ADD)p FC(.)403 1528 y(The)i(accum)o(ulation)h(bu\013er)f(op)q |
| (erations)g(apply)g(iden)o(tically)j(to)c(ev)o(ery)h(pixel,)i(so)332 |
| 1585 y(w)o(e)11 b(describ)q(e)h(the)f(e\013ect)f(of)g(eac)o(h)h(op)q |
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| (con)o(trolled)g(with)g Fz(ReadBu\013er)p FC(.)191 1805 |
| y(The)f(command)234 1893 y Fw(void)30 b Fz(ReadBu\013er)p |
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| 1980 V 15 w(LEFT)p FC(,)120 2037 y Fr(FRONT)p 233 2037 |
| V 15 w(RIGHT)p FC(,)26 b Fr(BACK)p 485 2037 V 15 w(LEFT)p |
| FC(,)g Fr(BACK)p 715 2037 V 15 w(RIGHT)p FC(,)f Fr(FRONT)p |
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| b Fr(FRONT)21 b FC(and)i Fr(LEFT)e FC(refer)h(to)g(the)h(fron)o(t)e |
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| %%Page: 124 133 |
| 124 132 bop 332 137 a FC(124)208 b Fx(CHAPTER)15 b(4.)35 |
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| %%Page: 125 134 |
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| V 156 w FC(2)950 448 y Fq(7)979 465 y FB(\000)g FC(1)p |
| 1183 482 V 551 483 634 2 v 550 540 2 57 v 577 523 a Fr(UNSIGNED)p |
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| %%Page: 126 135 |
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| 1118 y Fq(1)841 1111 y Fw(,)h(T)g Fy(v)937 1118 y Fq(2)956 |
| 1111 y Fw(,)h(int)e Fv(vstride)p Fw(,)h(int)f Fv(vor)n(der)p |
| Fw(,)h(T)g Fv(p)n(oints)f FC(\))g Fw(;)332 1214 y Fv(tar)n(get)18 |
| b FC(is)h(a)f(range)g(t)o(yp)q(e)g(selected)h(from)f(the)g(same)g |
| (group)g(as)g(is)g(used)h(for)f Fz(Map1)p FC(,)332 1270 |
| y(except)i(that)f(the)h(string)f Fw(MAP1)g FC(is)h(replaced)h(with)f |
| Fw(MAP2)p FC(.)32 b Fv(p)n(oints)19 b FC(is)h(a)f(p)q(oin)o(ter)h(to) |
| 332 1327 y(\()p Fy(n)11 b FC(+)f(1\)\()p Fy(m)g FC(+)h(1\))k(blo)q(c)o |
| (ks)h(of)f(storage)g(\()p Fy(uor)q(der)f FC(=)f Fy(n)e |
| FC(+)g(1)k(and)h Fy(v)r(or)q(der)e FC(=)g Fy(m)c FC(+)h(1;)k(the)332 |
| 1383 y(error)g Fr(INVALID)p 601 1383 14 2 v 14 w(VALUE)g |
| FC(is)h(generated)g(if)g(either)h Fy(uor)q(der)f FC(or)f |
| Fy(v)r(or)q(der)h FC(is)g(less)h(than)e(one)332 1440 |
| y(or)g(greater)f(than)h Fr(MAX)p 717 1440 V 15 w(EVAL)p |
| 820 1440 V 15 w(ORDER)p FC(\).)e(The)j(v)m(alues)g(comprising)g |
| Fz(R)1484 1447 y Fu(ij)1530 1440 y FC(are)f(lo)q(cated)853 |
| 1549 y(\()p Fy(ustr)q(ide)p FC(\))p Fy(i)9 b FC(+)h(\()p |
| Fy(v)r(str)q(ide)p FC(\))p Fy(j)332 1658 y FC(v)m(alues)k(\(either)f |
| (single-)h(or)f(double-precision)j(\015oating-p)q(oin)o(t,)d(as)f |
| (appropriate\))h(past)332 1714 y(the)j(\014rst)f(v)m(alue)i(p)q(oin)o |
| (ted)f(to)f(b)o(y)h Fv(p)n(oints)p FC(.)k Fy(u)1084 1721 |
| y Fq(1)1103 1714 y FC(,)c Fy(u)1158 1721 y Fq(2)1177 |
| 1714 y FC(,)g Fy(v)1228 1721 y Fq(1)1247 1714 y FC(,)g(and)f |
| Fy(v)1386 1721 y Fq(2)1422 1714 y FC(de\014ne)h(the)g(pre-image)332 |
| 1771 y(rectangle)g(of)e(the)i(map;)e(a)h(domain)h(p)q(oin)o(t)g(\()p |
| Fy(u)1133 1754 y FG(0)1144 1771 y Fy(;)8 b(v)1189 1754 |
| y FG(0)1199 1771 y FC(\))15 b(is)h(ev)m(aluated)g(as)763 |
| 1904 y Fz(p)792 1886 y FG(0)803 1904 y FC(\()p Fy(u)847 |
| 1886 y FG(0)859 1904 y Fy(;)8 b(v)904 1886 y FG(0)914 |
| 1904 y FC(\))13 b(=)g Fz(p)p FC(\()1048 1874 y Fy(u)1074 |
| 1857 y FG(0)1096 1874 y FB(\000)e Fy(u)1168 1881 y Fq(1)p |
| 1045 1894 148 2 v 1045 1936 a Fy(u)1071 1943 y Fq(2)1100 |
| 1936 y FB(\000)g Fy(u)1172 1943 y Fq(1)1196 1904 y Fy(;)1225 |
| 1874 y(v)1249 1857 y FG(0)1270 1874 y FB(\000)g Fy(v)1338 |
| 1881 y Fq(1)p 1221 1894 140 2 v 1221 1936 a Fy(v)1243 |
| 1943 y Fq(2)1273 1936 y FB(\000)g Fy(v)1341 1943 y Fq(1)1366 |
| 1904 y FC(\))p Fy(:)403 2033 y FC(The)i(ev)m(aluation)h(of)e(a)h |
| (de\014ned)h(map)e(is)i(enabled)g(or)e(disabled)j(with)e |
| Fz(Enable)h FC(and)332 2089 y Fz(Disable)k FC(using)g(the)g(constan)o |
| (t)e(corresp)q(onding)i(to)f(the)g(map)g(as)g(describ)q(ed)i(ab)q(o)o |
| (v)o(e.)332 2146 y(The)d(error)e Fr(INVALID)p 694 2146 |
| 14 2 v 14 w(VALUE)h FC(results)g(if)h(either)g Fv(ustride)f |
| FC(or)g Fv(vstride)g FC(is)h(less)g(than)f(k,)g(or)332 |
| 2202 y(if)h Fy(u)400 2209 y Fq(1)435 2202 y FC(is)f(equal)h(to)f |
| Fy(u)682 2209 y Fq(2)702 2202 y FC(,)f(or)h(if)h Fy(v)849 |
| 2209 y Fq(1)884 2202 y FC(is)f(equal)h(to)f Fy(v)1127 |
| 2209 y Fq(2)1147 2202 y FC(.)403 2261 y(Figure)h(5.1)f(describ)q(es)i |
| (map)f(ev)m(aluation)h(sc)o(hematically;)g(an)f(ev)m(aluation)h(of)f |
| (en-)332 2317 y(abled)g(maps)f(is)h(e\013ected)f(in)h(one)g(of)e(t)o(w) |
| o(o)g(w)o(a)o(ys.)19 b(The)d(\014rst)e(w)o(a)o(y)h(is)g(to)g(use)446 |
| 2420 y Fw(void)29 b Fz(Ev)m(alCo)q(ord)p FB(f)p Fz(12)p |
| FB(gf)p Fz(fd)p FB(g)p FC(\()i Fw(T)15 b Fv(ar)n(g)g |
| FC(\))g Fw(;)446 2477 y(void)29 b Fz(Ev)m(alCo)q(ord)p |
| FB(f)p Fz(12)p FB(gf)p Fz(fd)p FB(g)p Fz(v)p FC(\()h |
| Fw(T)15 b Fv(ar)n(g)g FC(\))g Fw(;)p eop |
| %%Page: 131 140 |
| 131 139 bop 120 137 a Fx(5.1.)34 b(EV)-5 b(ALUA)l(TORS)1009 |
| b FC(131)120 286 y Fz(Ev)m(alCo)q(ord1)15 b FC(causes)e(ev)m(aluation)i |
| (of)d(the)i(enabled)g(1-dimensional)i(maps.)j(The)13 |
| b(ar-)120 343 y(gumen)o(t)f(is)g(the)f(v)m(alue)i(\(or)d(a)i(p)q(oin)o |
| (ter)g(to)e(the)i(v)m(alue\))g(that)f(is)h(the)g(domain)g(co)q |
| (ordinate,)120 399 y Fy(u)146 383 y FG(0)158 399 y FC(.)19 |
| b Fz(Ev)m(alCo)q(ord2)14 b FC(causes)g(ev)m(aluation)g(of)f(the)g |
| (enabled)i(2-dimensional)g(maps.)j(The)120 456 y(t)o(w)o(o)c(v)m(alues) |
| j(sp)q(ecify)f(the)f(t)o(w)o(o)f(domain)i(co)q(ordinates,)f |
| Fy(u)1098 439 y FG(0)1125 456 y FC(and)g Fy(v)1237 439 |
| y FG(0)1249 456 y FC(,)f(in)i(that)f(order.)191 512 y(When)g(one)g(of)f |
| (the)h Fz(Ev)m(alCo)q(ord)g FC(commands)g(is)g(issued,)h(all)f(curren)o |
| (tly)g(enabled)120 569 y(maps)d(of)g(the)g(indicated)i(dimension)g(are) |
| d(ev)m(aluated.)20 b(Then,)13 b(for)f(eac)o(h)g(enabled)h(map,)120 |
| 625 y(it)18 b(is)f(as)g(if)g(a)g(corresp)q(onding)h(GL)f(command)g(w)o |
| (ere)f(issued)i(with)g(the)f(resulting)h(co-)120 682 |
| y(ordinates,)j(with)f(one)g(imp)q(ortan)o(t)f(di\013erence.)34 |
| b(The)20 b(di\013erence)h(is)f(that)f(when)h(an)120 738 |
| y(ev)m(aluation)i(is)f(p)q(erformed,)h(the)f(GL)g(uses)g(ev)m(aluated)g |
| (v)m(alues)h(instead)g(of)e(curren)o(t)120 795 y(v)m(alues)d(for)e |
| (those)g(ev)m(aluations)i(that)e(are)g(enabled)i(\(otherwise,)e(the)h |
| (curren)o(t)g(v)m(alues)120 851 y(are)h(used\).)25 b(The)17 |
| b(order)g(of)f(the)h(e\013ectiv)o(e)g(commands)g(is)g(immaterial,)h |
| (except)f(that)120 907 y Fz(V)l(ertex)d FC(\(for)g(v)o(ertex)g(co)q |
| (ordinate)i(ev)m(aluation\))g(m)o(ust)e(b)q(e)i(issued)g(last.)k(Use)15 |
| b(of)g(ev)m(al-)120 964 y(uators)f(has)h(no)g(e\013ect)g(on)g(the)g |
| (curren)o(t)g(color,)f(normal,)h(or)g(texture)f(co)q(ordinates.)20 |
| b(If)120 1020 y Fz(ColorMaterial)h FC(is)f(enabled,)h(ev)m(aluated)f |
| (color)f(v)m(alues)i(a\013ect)d(the)h(result)h(of)f(the)120 |
| 1077 y(ligh)o(ting)e(equation)g(as)e(if)i(the)f(curren)o(t)f(color)h(w) |
| o(as)f(b)q(eing)j(mo)q(di\014ed,)f(but)f(no)g(c)o(hange)120 |
| 1133 y(is)g(made)f(to)g(the)g(trac)o(king)g(ligh)o(ting)h(parameters)f |
| (or)f(to)h(the)g(curren)o(t)g(color.)191 1190 y(No)g(command)g(is)h |
| (e\013ectiv)o(ely)g(issued)h(if)e(the)h(corresp)q(onding)g(map)f(\(of)g |
| (the)g(indi-)120 1246 y(cated)d(dimension\))h(is)g(not)e(enabled.)20 |
| b(If)12 b(more)g(than)f(one)h(ev)m(aluation)h(is)g(enabled)g(for)e(a) |
| 120 1303 y(particular)k(dimension)h(\(e.g.)i Fr(MAP1)p |
| 739 1303 14 2 v 15 w(TEXTURE)p 908 1303 V 14 w(COORD)p |
| 1032 1303 V 15 w(1)c FC(and)g Fr(MAP1)p 1258 1303 V 15 |
| w(TEXTURE)p 1427 1303 V 14 w(COORD)p 1551 1303 V 15 w(2)p |
| FC(\),)120 1359 y(then)j(only)g(the)g(result)g(of)f(the)h(ev)m |
| (aluation)h(of)e(the)g(map)h(with)g(the)f(highest)h(n)o(um)o(b)q(er)120 |
| 1416 y(of)e(co)q(ordinates)h(is)f(used.)191 1472 y(Finally)l(,)26 |
| b(if)d(either)g Fr(MAP2)p 640 1472 V 15 w(VERTEX)p 787 |
| 1472 V 14 w(3)g FC(or)f Fr(MAP2)p 997 1472 V 14 w(VERTEX)p |
| 1143 1472 V 15 w(4)g FC(is)h(enabled,)j(then)d(the)120 |
| 1528 y(normal)13 b(to)g(the)g(surface)g(is)h(computed.)19 |
| b(Analytic)c(computation,)e(whic)o(h)h(sometimes)120 |
| 1585 y(yields)21 b(normals)d(of)h(length)g(zero)f(is)i(one)f(metho)q(d) |
| f(whic)o(h)i(ma)o(y)e(b)q(e)h(used.)31 b(If)19 b(auto-)120 |
| 1641 y(matic)e(normal)g(generation)h(is)f(enabled,)i(then)e(this)h |
| (computed)f(normal)g(is)h(used)f(as)120 1698 y(the)i(normal)g(asso)q |
| (ciated)g(with)g(a)g(generated)g(v)o(ertex.)30 b(Automatic)19 |
| b(normal)f(gener-)120 1754 y(ation)h(is)h(con)o(trolled)f(with)g |
| Fz(Enable)h FC(and)f Fz(Disable)h FC(with)g(sym)o(b)q(olic)g(the)f |
| (constan)o(t)120 1811 y Fr(AUTO)p 211 1811 V 15 w(NORMAL)p |
| FC(.)12 b(If)j(automatic)e(normal)h(generation)g(is)g(disabled,)i(then) |
| e(a)f(corresp)q(ond-)120 1867 y(ing)e(normal)g(map,)g(if)f(enabled,)j |
| (is)e(used)g(to)f(pro)q(duce)h(a)f(normal.)18 b(If)11 |
| b(neither)g(automatic)120 1924 y(normal)19 b(generation)g(nor)f(a)h |
| (normal)f(map)h(are)f(enabled,)j(then)e(no)f(normal)h(is)g(sen)o(t)120 |
| 1980 y(with)i(a)e(v)o(ertex)h(resulting)h(from)e(an)h(ev)m(aluation)h |
| (\(the)f(e\013ect)g(is)g(that)g(the)g(curren)o(t)120 |
| 2037 y(normal)c(is)f(used\).)191 2093 y(F)l(or)g Fr(MAP)p |
| 342 2093 V 15 w(VERTEX)p 489 2093 V 14 w(3)p FC(,)g(let)h |
| Fz(q)d FC(=)h Fz(p)p FC(.)21 b(F)l(or)15 b Fr(MAP)p 920 |
| 2093 V 15 w(VERTEX)p 1067 2093 V 14 w(4)p FC(,)g(let)h |
| Fz(q)d FC(=)h(\()p Fy(x=w)q(;)8 b(y)r(=w)q(;)g(z)r(=w)p |
| FC(\),)120 2149 y(where)16 b(\()p Fy(x;)8 b(y)r(;)g(z)r(;)g(w)q |
| FC(\))h(=)k Fz(p)p FC(.)20 b(Then)c(let)717 2267 y Fz(m)c |
| FC(=)826 2236 y Fy(@)s Fz(q)p 826 2256 55 2 v 827 2298 |
| a Fy(@)s(u)896 2267 y FB(\002)946 2236 y Fy(@)s Fz(q)p |
| 946 2256 V 948 2298 a Fy(@)s(v)1005 2267 y(:)120 2375 |
| y FC(Then)k(the)f(generated)h(analytic)g(normal,)e Fz(n)p |
| FC(,)h(is)h(giv)o(en)g(b)o(y)f Fz(n)d FC(=)h Fz(m)p Fy(=)p |
| FB(k)p Fz(m)p FB(k)p FC(.)191 2432 y(The)19 b(second)h(w)o(a)o(y)e(to)g |
| (carry)h(out)g(ev)m(aluations)h(is)g(to)e(use)i(a)e(set)h(of)g |
| (commands)120 2488 y(that)d(pro)o(vide)h(for)e(e\016cien)o(t)i(sp)q |
| (eci\014cation)h(of)e(a)g(series)g(of)g(ev)o(enly)h(spaced)g(v)m(alues) |
| g(to)p eop |
| %%Page: 132 141 |
| 132 140 bop 332 137 a FC(132)622 b Fx(CHAPTER)15 b(5.)35 |
| b(SPECIAL)16 b(FUNCTIONS)332 286 y FC(b)q(e)h(mapp)q(ed.)23 |
| b(This)17 b(metho)q(d)f(pro)q(ceeds)h(in)g(t)o(w)o(o)e(steps.)22 |
| b(The)16 b(\014rst)g(step)g(is)h(to)e(de\014ne)332 343 |
| y(a)g(grid)h(in)g(the)f(domain.)20 b(This)c(is)g(done)f(using)446 |
| 449 y Fw(void)29 b Fz(MapGrid1)p FB(f)p Fz(fd)p FB(g)p |
| FC(\()h Fw(int)15 b Fy(n)p Fw(,)g(T)g Fy(u)1164 433 y |
| FG(0)1164 461 y Fq(1)1184 449 y Fw(,)g(T)g Fy(u)1288 |
| 433 y FG(0)1288 461 y Fq(2)1323 449 y FC(\))g Fw(;)332 |
| 556 y FC(for)g(a)g(1-dimensional)i(map)e(or)446 662 y |
| Fw(void)39 b Fz(MapGrid2)p FB(f)p Fz(fd)p FB(g)p FC(\()g |
| Fw(int)19 b Fy(n)1083 669 y Fu(u)1106 662 y Fw(,)i(T)f |
| Fy(u)1221 645 y FG(0)1221 673 y Fq(1)1240 662 y Fw(,)h(T)f |
| Fy(u)1355 645 y FG(0)1355 673 y Fq(2)1375 662 y Fw(,)h(int)e |
| Fy(n)1538 669 y Fu(v)1559 662 y Fw(,)i(T)e Fy(v)1671 |
| 645 y FG(0)1669 673 y Fq(1)1689 662 y Fw(,)514 718 y(T)c |
| Fy(v)577 702 y FG(0)575 730 y Fq(2)610 718 y FC(\))g |
| Fw(;)332 825 y FC(for)g(a)h(2-dimensional)i(map.)k(In)17 |
| b(the)f(case)g(of)f Fz(MapGrid1)h Fy(u)1415 808 y FG(0)1415 |
| 836 y Fq(1)1451 825 y FC(and)g Fy(u)1566 808 y FG(0)1566 |
| 836 y Fq(2)1602 825 y FC(describ)q(e)i(an)332 881 y(in)o(terv)m(al,)23 |
| b(while)e Fy(n)g FC(describ)q(es)h(the)f(n)o(um)o(b)q(er)f(of)g |
| (partitions)h(of)f(the)h(in)o(terv)m(al.)36 b(The)332 |
| 938 y(error)15 b Fr(INVALID)p 601 938 14 2 v 15 w(VALUE)g |
| FC(results)h(if)h Fy(n)d FB(\024)g FC(0.)23 b(F)l(or)15 |
| b Fz(MapGrid2)p FC(,)h(\()p Fy(u)1466 921 y FG(0)1466 |
| 949 y Fq(1)1486 938 y Fy(;)8 b(v)1531 921 y FG(0)1529 |
| 949 y Fq(1)1548 938 y FC(\))15 b(sp)q(eci\014es)j(one)332 |
| 994 y(t)o(w)o(o-dimensional)c(p)q(oin)o(t)f(and)f(\()p |
| Fy(u)911 978 y FG(0)911 1006 y Fq(2)931 994 y Fy(;)c(v)976 |
| 978 y FG(0)974 1006 y Fq(2)993 994 y FC(\))k(sp)q(eci\014es)j(another.) |
| j Fy(n)1407 1001 y Fu(u)1442 994 y FC(giv)o(es)13 b(the)g(n)o(um)o(b)q |
| (er)g(of)332 1050 y(partitions)f(b)q(et)o(w)o(een)h Fy(u)735 |
| 1034 y FG(0)735 1062 y Fq(1)766 1050 y FC(and)g Fy(u)878 |
| 1034 y FG(0)878 1062 y Fq(2)897 1050 y FC(,)g(and)f Fy(n)1035 |
| 1057 y Fu(v)1068 1050 y FC(giv)o(es)g(the)g(n)o(um)o(b)q(er)g(of)g |
| (partitions)g(b)q(et)o(w)o(een)332 1107 y Fy(v)356 1090 |
| y FG(0)354 1118 y Fq(1)389 1107 y FC(and)j Fy(v)501 1090 |
| y FG(0)499 1118 y Fq(2)519 1107 y FC(.)20 b(If)15 b(either)h |
| Fy(n)753 1114 y Fu(u)789 1107 y FB(\024)d FC(0)i(or)f |
| Fy(n)957 1114 y Fu(v)991 1107 y FB(\024)f FC(0,)h(then)i(the)f(error)f |
| Fr(INVALID)p 1539 1107 V 15 w(VALUE)g FC(o)q(ccurs.)403 |
| 1166 y(Once)g(a)e(grid)h(is)h(de\014ned,)g(an)f(ev)m(aluation)h(on)f(a) |
| f(rectangular)h(subset)g(of)g(that)f(grid)332 1223 y(ma)o(y)j(b)q(e)g |
| (carried)h(out)f(b)o(y)g(calling)446 1329 y Fw(void)29 |
| b Fz(Ev)m(alMesh1)p FC(\()i Fw(enum)14 b Fv(mo)n(de)p |
| Fw(,)i(int)e Fy(p)1229 1336 y Fq(1)1249 1329 y Fw(,)h(int)g |
| Fy(p)1398 1336 y Fq(2)1432 1329 y FC(\))g Fw(;)332 1436 |
| y Fv(mo)n(de)i FC(is)h(either)g Fr(POINT)d FC(or)i Fr(LINE)p |
| FC(.)f(The)h(e\013ect)g(is)g(the)g(same)g(as)g(p)q(erforming)g(the)g |
| (fol-)332 1492 y(lo)o(wing)f(co)q(de)g(fragmen)o(t,)d(with)j(\001)p |
| Fy(u)952 1476 y FG(0)976 1492 y FC(=)d(\()p Fy(u)1068 |
| 1476 y FG(0)1068 1504 y Fq(2)1097 1492 y FB(\000)e Fy(u)1169 |
| 1476 y FG(0)1169 1504 y Fq(1)1189 1492 y FC(\))p Fy(=n)p |
| FC(:)529 1602 y Fz(Begin)p Fw(\()p Fv(typ)n(e)p Fw(\);)590 |
| 1658 y Fz(for)j Fy(i)f FC(=)g Fy(p)768 1665 y Fq(1)802 |
| 1658 y FC(to)i Fy(p)881 1665 y Fq(2)916 1658 y FC(step)g(1)p |
| Fy(:)p FC(0)650 1714 y Fz(Ev)m(alCo)q(ord1)p Fw(\()p |
| Fy(i)25 b Fw(*)f FC(\001)p Fy(u)1093 1698 y FG(0)1128 |
| 1714 y Fw(+)g Fy(u)1202 1698 y FG(0)1202 1726 y Fq(1)1221 |
| 1714 y Fw(\);)529 1771 y Fz(End)p Fw(\(\);)332 1877 y |
| FC(where)18 b Fz(Ev)m(alCo)q(ord1f)h FC(or)f Fz(Ev)m(alCo)q(ord1d)h |
| FC(is)f(substituted)h(for)e Fz(Ev)m(alCo)q(ord1)i FC(as)332 |
| 1934 y(appropriate.)h(If)14 b Fv(mo)n(de)g FC(is)g Fr(POINT)p |
| FC(,)e(then)j Fv(typ)n(e)e FC(is)i Fr(POINTS)p FC(;)d(if)i |
| Fv(mo)n(de)g FC(is)h Fr(LINE)p FC(,)d(then)i Fv(typ)n(e)332 |
| 1990 y FC(is)i Fr(LINE)p 469 1990 V 14 w(STRIP)p FC(.)e(The)h(one)g |
| (requiremen)o(t)h(is)f(that)f(if)i(either)g Fy(i)c FC(=)h(0)h(or)h |
| Fy(i)d FC(=)h Fy(n)p FC(,)i(then)g(the)332 2047 y(v)m(alue)i(computed)e |
| (from)g Fy(i)9 b FB(\003)h FC(\001)p Fy(u)889 2030 y |
| FG(0)911 2047 y FC(+)g Fy(u)982 2030 y FG(0)982 2058 |
| y Fq(1)1017 2047 y FC(is)16 b(precisely)h Fy(u)1275 2030 |
| y FG(0)1275 2058 y Fq(1)1310 2047 y FC(or)d Fy(u)1391 |
| 2030 y FG(0)1391 2058 y Fq(2)1411 2047 y FC(,)h(resp)q(ectiv)o(ely)l(.) |
| 403 2106 y(The)g(corresp)q(onding)h(commands)f(for)g(t)o(w)o |
| (o-dimensional)h(maps)f(are)446 2212 y Fw(void)48 b Fz(Ev)m(alMesh2)p |
| FC(\()g Fw(enum)23 b Fv(mo)n(de)p Fw(,)k(int)d Fy(p)1295 |
| 2219 y Fq(1)1314 2212 y Fw(,)j(int)c Fy(p)1483 2219 y |
| Fq(2)1503 2212 y Fw(,)j(int)e Fy(q)1669 2219 y Fq(1)1689 |
| 2212 y Fw(,)514 2269 y(int)15 b Fy(q)621 2276 y Fq(2)656 |
| 2269 y FC(\))g Fw(;)332 2375 y Fv(mo)n(de)c FC(m)o(ust)f(b)q(e)h |
| Fr(FILL)p FC(,)e Fr(LINE)p FC(,)h(or)g Fr(POINT)p FC(.)f(When)i |
| Fv(mo)n(de)g FC(is)g Fr(FILL)p FC(,)e(then)i(these)g(commands)332 |
| 2432 y(are)18 b(equiv)m(alen)o(t)i(to)d(the)i(follo)o(wing,)g(with)f |
| (\001)p Fy(u)1148 2415 y FG(0)1177 2432 y FC(=)g(\()p |
| Fy(u)1274 2415 y FG(0)1274 2443 y Fq(2)1306 2432 y FB(\000)12 |
| b Fy(u)1379 2415 y FG(0)1379 2443 y Fq(1)1399 2432 y |
| FC(\))p Fy(=n)18 b FC(and)g(\001)p Fy(v)1638 2415 y FG(0)1667 |
| 2432 y FC(=)g(\()p Fy(v)1762 2415 y FG(0)1760 2443 y |
| Fq(2)1791 2432 y FB(\000)332 2488 y Fy(v)356 2472 y FG(0)354 |
| 2500 y Fq(1)374 2488 y FC(\))p Fy(=m)p FC(:)p eop |
| %%Page: 133 142 |
| 133 141 bop 120 137 a Fx(5.1.)34 b(EV)-5 b(ALUA)l(TORS)1009 |
| b FC(133)317 286 y Fz(for)15 b Fy(i)d FC(=)h Fy(q)492 |
| 293 y Fq(1)528 286 y FC(to)h Fy(q)603 293 y Fq(2)633 |
| 286 y FB(\000)d FC(1)k(step)g(1)p Fy(:)p FC(0)378 343 |
| y Fz(Begin)p Fw(\(QUAD)p 631 343 15 2 v 17 w(STRIP\);)439 |
| 399 y Fz(for)f Fy(j)h FC(=)e Fy(p)622 406 y Fq(1)657 |
| 399 y FC(to)i Fy(p)736 406 y Fq(2)770 399 y FC(step)h(1)p |
| Fy(:)p FC(0)499 456 y Fz(Ev)m(alCo)q(ord2)p Fw(\()p Fy(j)27 |
| b Fw(*)d FC(\001)p Fy(u)947 439 y FG(0)982 456 y Fw(+)g |
| Fy(u)1056 439 y FG(0)1056 467 y Fq(1)1100 456 y Fw(,)g |
| Fy(i)f Fw(*)h FC(\001)p Fy(v)1297 439 y FG(0)1332 456 |
| y Fw(+)g Fy(v)1404 439 y FG(0)1402 467 y Fq(1)1421 456 |
| y Fw(\);)499 512 y Fz(Ev)m(alCo)q(ord2)p Fw(\()p Fy(j)j |
| Fw(*)d FC(\001)p Fy(u)947 496 y FG(0)982 512 y Fw(+)g |
| Fy(u)1056 496 y FG(0)1056 524 y Fq(1)1100 512 y Fw(,)g |
| FC(\()p Fy(i)9 b FC(+)h(1\))24 b Fw(*)f FC(\001)p Fy(v)1410 |
| 496 y FG(0)1445 512 y Fw(+)h Fy(v)1517 496 y FG(0)1515 |
| 524 y Fq(1)1535 512 y Fw(\);)378 569 y Fz(End)p Fw(\(\);)120 |
| 666 y FC(If)16 b Fv(mo)n(de)f FC(is)h Fr(LINE)p FC(,)e(then)h(a)g(call) |
| i(to)d Fz(Ev)m(alMesh2)i FC(is)f(equiv)m(alen)o(t)i(to)317 |
| 764 y Fz(for)e Fy(i)d FC(=)h Fy(q)492 771 y Fq(1)528 |
| 764 y FC(to)h Fy(q)603 771 y Fq(2)638 764 y FC(step)h(1)p |
| Fy(:)p FC(0)378 820 y Fz(Begin)p Fw(\(LINE)p 631 820 |
| V 17 w(STRIP\);)378 877 y Fz(for)g Fy(j)g FC(=)e Fy(p)562 |
| 884 y Fq(1)596 877 y FC(to)i Fy(p)675 884 y Fq(2)710 |
| 877 y FC(step)g(1)p Fy(:)p FC(0)439 933 y Fz(Ev)m(alCo)q(ord2)p |
| Fw(\()p Fy(j)27 b Fw(*)c FC(\001)p Fy(u)886 917 y FG(0)922 |
| 933 y Fw(+)h Fy(u)996 917 y FG(0)996 945 y Fq(1)1039 |
| 933 y Fw(,)g Fy(i)f Fw(*)h FC(\001)p Fy(v)1236 917 y |
| FG(0)1271 933 y Fw(+)g Fy(v)1343 917 y FG(0)1341 945 |
| y Fq(1)1361 933 y Fw(\);)378 990 y Fz(End)p Fw(\(\);)p |
| FC(;)317 1046 y Fz(for)15 b Fy(i)d FC(=)h Fy(p)495 1053 |
| y Fq(1)530 1046 y FC(to)i Fy(p)609 1053 y Fq(2)643 1046 |
| y FC(step)h(1)p Fy(:)p FC(0)378 1103 y Fz(Begin)p Fw(\(LINE)p |
| 631 1103 V 17 w(STRIP\);)378 1159 y Fz(for)f Fy(j)g FC(=)e |
| Fy(q)559 1166 y Fq(1)594 1159 y FC(to)h Fy(q)669 1166 |
| y Fq(2)705 1159 y FC(step)h(1)p Fy(:)p FC(0)439 1216 |
| y Fz(Ev)m(alCo)q(ord2)p Fw(\()p Fy(i)24 b Fw(*)g FC(\001)p |
| Fy(u)881 1199 y FG(0)916 1216 y Fw(+)g Fy(u)990 1199 |
| y FG(0)990 1227 y Fq(1)1034 1216 y Fw(,)f Fy(j)j Fw(*)e |
| FC(\001)p Fy(v)1236 1199 y FG(0)1271 1216 y Fw(+)g Fy(v)1343 |
| 1199 y FG(0)1341 1227 y Fq(1)1361 1216 y Fw(\);)378 1272 |
| y Fz(End)p Fw(\(\);)120 1369 y FC(If)16 b Fv(mo)n(de)f |
| FC(is)h Fr(POINT)p FC(,)e(then)h(a)g(call)h(to)f Fz(Ev)m(alMesh2)g |
| FC(is)h(equiv)m(alen)o(t)h(to)317 1467 y Fz(Begin)p Fw(\(POINTS\);)378 |
| 1524 y Fz(for)e Fy(i)d FC(=)h Fy(q)553 1531 y Fq(1)588 |
| 1524 y FC(to)i Fy(q)664 1531 y Fq(2)699 1524 y FC(step)g(1)p |
| Fy(:)p FC(0)439 1580 y Fz(for)f Fy(j)h FC(=)e Fy(p)622 |
| 1587 y Fq(1)657 1580 y FC(to)i Fy(p)736 1587 y Fq(2)770 |
| 1580 y FC(step)h(1)p Fy(:)p FC(0)499 1637 y Fz(Ev)m(alCo)q(ord2)p |
| Fw(\()p Fy(j)27 b Fw(*)d FC(\001)p Fy(u)947 1620 y FG(0)982 |
| 1637 y Fw(+)g Fy(u)1056 1620 y FG(0)1056 1648 y Fq(1)1100 |
| 1637 y Fw(,)g Fy(i)f Fw(*)h FC(\001)p Fy(v)1297 1620 |
| y FG(0)1332 1637 y Fw(+)g Fy(v)1404 1620 y FG(0)1402 |
| 1648 y Fq(1)1421 1637 y Fw(\);)317 1693 y Fz(End)p Fw(\(\);)120 |
| 1790 y FC(Again,)18 b(in)h(all)f(three)g(cases,)f(there)h(is)g(the)f |
| (requiremen)o(t)h(that)f(0)11 b FB(\003)h FC(\001)p Fy(u)1373 |
| 1774 y FG(0)1396 1790 y FC(+)g Fy(u)1469 1774 y FG(0)1469 |
| 1802 y Fq(1)1505 1790 y FC(=)k Fy(u)1582 1774 y FG(0)1582 |
| 1802 y Fq(1)1602 1790 y FC(,)120 1847 y Fy(n)11 b FB(\003)f |
| FC(\001)p Fy(u)255 1830 y FG(0)276 1847 y FC(+)h Fy(u)348 |
| 1830 y FG(0)348 1858 y Fq(1)380 1847 y FC(=)i Fy(u)454 |
| 1830 y FG(0)454 1858 y Fq(2)474 1847 y FC(,)i(0)9 b FB(\003)h |
| FC(\001)p Fy(v)629 1830 y FG(0)651 1847 y FC(+)g Fy(v)720 |
| 1830 y FG(0)718 1858 y Fq(1)750 1847 y FC(=)j Fy(v)822 |
| 1830 y FG(0)820 1858 y Fq(1)840 1847 y FC(,)i(and)g Fy(m)10 |
| b FB(\003)g FC(\001)p Fy(v)1101 1830 y FG(0)1122 1847 |
| y FC(+)h Fy(v)1192 1830 y FG(0)1190 1858 y Fq(1)1222 |
| 1847 y FC(=)i Fy(v)1294 1830 y FG(0)1292 1858 y Fq(2)1312 |
| 1847 y FC(.)191 1904 y(An)i(ev)m(aluation)i(of)e(a)g(single)h(p)q(oin)o |
| (t)g(on)f(the)g(grid)h(ma)o(y)e(also)h(b)q(e)h(carried)g(out:)234 |
| 2001 y Fw(void)30 b Fz(Ev)m(alP)o(oin)o(t1)p FC(\()h |
| Fw(int)14 b Fy(p)h FC(\))g Fw(;)120 2099 y FC(Calling)i(it)e(is)h |
| (equiv)m(alen)o(t)h(to)e(the)g(command)317 2197 y Fz(Ev)m(alCo)q(ord1)p |
| Fw(\()p Fy(p)h FC(*)f(\001)p Fy(u)748 2180 y FG(0)775 |
| 2197 y FC(+)g Fy(u)851 2180 y FG(0)851 2208 y Fq(1)871 |
| 2197 y Fw(\);)120 2294 y FC(with)h(\001)p Fy(u)288 2277 |
| y FG(0)315 2294 y FC(and)f Fy(u)429 2277 y FG(0)429 2305 |
| y Fq(1)464 2294 y FC(de\014ned)h(as)f(ab)q(o)o(v)o(e.)234 |
| 2391 y Fw(void)30 b Fz(Ev)m(alP)o(oin)o(t2)p FC(\()h |
| Fw(int)14 b Fy(p)p Fw(,)h(int)g Fy(q)i FC(\))e Fw(;)120 |
| 2488 y FC(is)h(equiv)m(alen)o(t)h(to)e(the)g(command)p |
| eop |
| %%Page: 134 143 |
| 134 142 bop 332 137 a FC(134)622 b Fx(CHAPTER)15 b(5.)35 |
| b(SPECIAL)16 b(FUNCTIONS)529 286 y Fz(Ev)m(alCo)q(ord2)p |
| Fw(\()p Fy(p)25 b Fw(*)f FC(\001)p Fy(u)979 270 y FG(0)1014 |
| 286 y Fw(+)g Fy(u)1088 270 y FG(0)1088 298 y Fq(1)1131 |
| 286 y Fw(,)g Fy(q)i Fw(*)d FC(\001)p Fy(v)1334 270 y |
| FG(0)1370 286 y Fw(+)g Fy(v)1441 270 y FG(0)1439 298 |
| y Fq(1)1459 286 y Fw(\);)403 441 y FC(The)15 b(state)f(required)i(for)e |
| (ev)m(aluators)h(p)q(oten)o(tially)h(consists)f(of)f(9)h(1-dimensional) |
| 332 498 y(map)j(sp)q(eci\014cations)i(and)f(9)f(2-dimensional)i(map)e |
| (sp)q(eci\014cations,)j(as)c(w)o(ell)j(as)e(cor-)332 |
| 554 y(resp)q(onding)h(\015ags)e(for)h(eac)o(h)f(sp)q(eci\014cation)j |
| (indicating)g(whic)o(h)e(are)g(enabled.)29 b(Eac)o(h)332 |
| 611 y(map)18 b(sp)q(eci\014cation)h(consists)f(of)g(one)f(or)h(t)o(w)o |
| (o)e(orders,)i(an)g(appropriately)g(sized)h(ar-)332 667 |
| y(ra)o(y)d(of)g(con)o(trol)g(p)q(oin)o(ts,)h(and)g(a)f(set)h(of)f(t)o |
| (w)o(o)f(v)m(alues)j(\(for)d(a)h(1-dimensional)j(map\))d(or)332 |
| 724 y(four)j(v)m(alues)h(\(for)e(a)h(2-dimensional)i(map\))d(to)h |
| (describ)q(e)h(the)g(domain.)31 b(The)20 b(max-)332 780 |
| y(im)o(um)f(p)q(ossible)i(order,)e(for)f(either)i Fy(u)f |
| FC(or)f Fy(v)r FC(,)h(is)g(implemen)o(tation)h(dep)q(enden)o(t)h(\(one) |
| 332 837 y(maxim)o(um)d(applies)h(to)e(b)q(oth)h Fy(u)g |
| FC(and)g Fy(v)r FC(\),)g(but)g(m)o(ust)f(b)q(e)h(at)g(least)g(8.)27 |
| b(Eac)o(h)18 b(con)o(trol)332 893 y(p)q(oin)o(t)f(consists)g(of)f(b)q |
| (et)o(w)o(een)g(one)h(and)g(four)f(\015oating-p)q(oin)o(t)h(v)m(alues)g |
| (\(dep)q(ending)i(on)332 949 y(the)f(t)o(yp)q(e)h(of)e(the)i(map\).)28 |
| b(Initially)l(,)21 b(all)e(maps)f(ha)o(v)o(e)g(order)g(1)g(\(making)g |
| (them)g(con-)332 1006 y(stan)o(t)13 b(maps\).)19 b(All)c(v)o(ertex)f |
| (co)q(ordinate)g(maps)g(pro)q(duce)h(the)f(co)q(ordinates)h(\(0)p |
| Fy(;)8 b FC(0)p Fy(;)g FC(0)p Fy(;)f FC(1\))332 1062 |
| y(\(or)18 b(the)i(appropriate)f(subset\);)i(all)f(normal)f(co)q |
| (ordinate)h(maps)f(pro)q(duce)h(\(0)p Fy(;)8 b FC(0)p |
| Fy(;)g FC(1\);)332 1119 y(R)o(GBA)16 b(maps)g(pro)q(duce)h(\(1)p |
| Fy(;)8 b FC(1)p Fy(;)g FC(1)p Fy(;)g FC(1\))o(;)13 b(color)k(index)g |
| (maps)f(pro)q(duce)h(1.0;)e(texture)h(co-)332 1175 y(ordinate)e(maps)g |
| (pro)q(duce)g(\(0)p Fy(;)8 b FC(0)p Fy(;)g FC(0)p Fy(;)g |
| FC(1\))o(;)j(In)k(the)e(initial)j(state,)d(all)i(maps)e(are)h |
| (disabled.)332 1232 y(A)h(\015ag)g(indicates)i(whether)f(or)e(not)h |
| (automatic)g(normal)g(generation)h(is)f(enabled)i(for)332 |
| 1288 y(2-dimensional)d(maps.)19 b(In)12 b(the)h(initial)h(state,)d |
| (automatic)h(normal)g(generation)g(is)h(dis-)332 1345 |
| y(abled.)21 b(Also)14 b(required)i(are)e(t)o(w)o(o)f(\015oating-p)q |
| (oin)o(t)i(v)m(alues)g(and)g(an)f(in)o(teger)g(n)o(um)o(b)q(er)h(of)332 |
| 1401 y(grid)e(divisions)h(for)e(the)h(1-dimensional)h(grid)f(sp)q |
| (eci\014cation)h(and)f(four)f(\015oating-p)q(oin)o(t)332 |
| 1458 y(v)m(alues)h(and)g(t)o(w)o(o)d(in)o(teger)j(grid)f(divisions)i |
| (for)d(the)h(2-dimensional)i(grid)f(sp)q(eci\014cation.)332 |
| 1514 y(In)f(the)g(initial)i(state,)d(the)g(b)q(ounds)i(of)e(the)h |
| (domain)g(in)o(terv)m(al)g(for)f(1-D)g(is)h(0)g(and)f(1)p |
| Fy(:)p FC(0,)g(re-)332 1570 y(sp)q(ectiv)o(ely;)j(for)d(2-D,)f(they)i |
| (are)f(\(0)p Fy(;)d FC(0\))h(and)j(\(1)p Fy(:)p FC(0)p |
| Fy(;)c FC(1)p Fy(:)p FC(0\))o(,)h(resp)q(ectiv)o(ely)l(.)21 |
| b(The)11 b(n)o(um)o(b)q(er)h(of)332 1627 y(grid)i(divisions)h(is)g(1)e |
| (for)g(1-D)g(and)g(1)h(in)g(b)q(oth)g(directions)h(for)d(2-D.)h(If)h |
| (an)o(y)f(ev)m(aluation)332 1683 y(command)i(is)h(issued)g(when)g(no)f |
| (v)o(ertex)g(map)g(is)g(enabled,)i(nothing)e(happ)q(ens.)332 |
| 1833 y Fs(5.2)66 b(Selection)332 1937 y FC(Selection)16 |
| b(is)e(used)g(b)o(y)g(a)g(programmer)e(to)i(determine)g(whic)o(h)h |
| (primitiv)o(es)g(are)f(dra)o(wn)332 1993 y(in)o(to)i(some)g(region)g |
| (of)g(a)f(windo)o(w.)23 b(The)16 b(region)h(is)f(de\014ned)h(b)o(y)f |
| (the)g(curren)o(t)g(mo)q(del-)332 2050 y(view)g(and)f(p)q(ersp)q(ectiv) |
| o(e)i(matrices.)403 2107 y(Selection)23 b(w)o(orks)d(b)o(y)h(returning) |
| h(an)f(arra)o(y)f(of)g(in)o(teger-v)m(alued)k Fv(names)p |
| FC(.)37 b(This)332 2164 y(arra)o(y)15 b(represen)o(ts)h(the)g(curren)o |
| (t)g(con)o(ten)o(ts)f(of)h(the)g Fv(name)h(stack)p FC(.)22 |
| b(This)16 b(stac)o(k)g(is)g(con-)332 2220 y(trolled)g(with)g(the)f |
| (commands)446 2319 y Fw(void)29 b Fz(InitNames)p FC(\()i |
| Fw(void)38 b FC(\))15 b Fw(;)446 2375 y(void)29 b Fz(P)o(opName)p |
| FC(\()h Fw(void)38 b FC(\))15 b Fw(;)446 2432 y(void)29 |
| b Fz(PushName)p FC(\()h Fw(uint)14 b Fv(name)h FC(\))g |
| Fw(;)446 2488 y(void)29 b Fz(LoadName)p FC(\()i Fw(uint)15 |
| b Fv(name)g FC(\))g Fw(;)p eop |
| %%Page: 135 144 |
| 135 143 bop 120 137 a Fx(5.2.)34 b(SELECTION)1055 b FC(135)120 |
| 286 y Fz(InitNames)20 b FC(empties)f(\(clears\))g(the)h(name)f(stac)o |
| (k.)31 b Fz(P)o(opName)18 b FC(p)q(ops)h(one)h(name)120 |
| 343 y(o\013)i(the)h(top)f(of)g(the)h(name)g(stac)o(k.)41 |
| b Fz(PushName)22 b FC(causes)h Fv(name)f FC(to)g(b)q(e)i(pushed)120 |
| 399 y(on)o(to)d(the)h(name)g(stac)o(k.)39 b Fz(LoadName)23 |
| b FC(replaces)f(the)g(v)m(alue)h(on)f(the)g(top)f(of)h(the)120 |
| 456 y(stac)o(k)c(with)h Fv(name)p FC(.)30 b(Loading)20 |
| b(a)e(name)h(on)o(to)f(an)g(empt)o(y)h(stac)o(k)e(generates)i(the)g |
| (er-)120 512 y(ror)j Fr(INVALID)p 358 512 14 2 v 14 w(OPERATION)p |
| FC(.)e(P)o(opping)j(a)f(name)h(o\013)e(of)h(an)g(empt)o(y)g(stac)o(k)g |
| (generates)120 569 y Fr(STACK)p 233 569 V 15 w(UNDERFLOW)p |
| FC(;)10 b(pushing)j(a)e(name)h(on)o(to)f(a)g(full)j(stac)o(k)d |
| (generates)g Fr(STACK)p 1416 569 V 15 w(OVERFLOW)p FC(.)120 |
| 625 y(The)k(maxim)o(um)f(allo)o(w)o(able)i(depth)f(of)f(the)g(name)h |
| (stac)o(k)e(is)i(implemen)o(tation)h(dep)q(en-)120 682 |
| y(den)o(t)g(but)f(m)o(ust)g(b)q(e)g(at)g(least)g(64.)191 |
| 739 y(In)h(selection)h(mo)q(de,)e(no)g(fragmen)o(ts)f(are)i(rendered)g |
| (in)o(to)f(the)h(framebu\013er.)j(The)120 796 y(GL)d(is)f(placed)i(in)f |
| (selection)g(mo)q(de)g(with)234 893 y Fw(int)30 b Fz(RenderMo)q(de)p |
| FC(\()g Fw(enum)14 b Fv(mo)n(de)i FC(\))f Fw(;)120 991 |
| y Fv(mo)n(de)21 b FC(is)g(a)f(sym)o(b)q(olic)i(constan)o(t:)29 |
| b(one)21 b(of)f Fr(RENDER)p FC(,)f Fr(SELECT)p FC(,)g(or)h |
| Fr(FEEDBACK)p FC(.)e Fr(RENDER)120 1048 y FC(is)i(the)f(default,)h |
| (corresp)q(onding)g(to)f(rendering)h(as)f(describ)q(ed)i(un)o(til)f(no) |
| o(w.)31 b Fr(SELECT)120 1104 y FC(sp)q(eci\014es)21 b(selection)g(mo)q |
| (de,)f(and)g Fr(FEEDBACK)d FC(sp)q(eci\014es)k(feedbac)o(k)f(mo)q(de)f |
| (\(describ)q(ed)120 1160 y(b)q(elo)o(w\).)h(Use)13 b(of)f(an)o(y)h(of)f |
| (the)h(name)g(stac)o(k)f(manipulation)j(commands)d(while)j(the)e(GL)120 |
| 1217 y(is)j(not)f(in)h(selection)h(mo)q(de)e(has)g(no)g(e\013ect.)191 |
| 1274 y(Selection)i(is)f(con)o(trolled)g(using)234 1372 |
| y Fw(void)30 b Fz(SelectBu\013er)p FC(\()g Fw(sizei)14 |
| b Fv(n)p Fw(,)h(uint)g Fv(*bu\013er)g FC(\))g Fw(;)120 |
| 1470 y Fv(bu\013er)23 b FC(is)g(a)e(p)q(oin)o(ter)i(to)f(an)g(arra)o(y) |
| f(of)h(unsigned)h(in)o(tegers)g(\(called)g(the)f(selection)120 |
| 1526 y(arra)o(y\))13 b(to)g(b)q(e)h(p)q(oten)o(tially)h(\014lled)h |
| (with)e(names,)g(and)g Fv(n)f FC(is)h(an)g(in)o(teger)g(indicating)i |
| (the)120 1583 y(maxim)o(um)c(n)o(um)o(b)q(er)h(of)e(v)m(alues)i(that)f |
| (can)g(b)q(e)g(stored)g(in)h(that)e(arra)o(y)l(.)18 b(Placing)13 |
| b(the)f(GL)120 1639 y(in)j(selection)g(mo)q(de)e(b)q(efore)h |
| Fz(SelectBu\013er)g FC(has)f(b)q(een)i(called)g(results)f(in)g(an)f |
| (error)g(of)120 1696 y Fr(INVALID)p 277 1696 V 15 w(OPERATION)g |
| FC(as)i(do)q(es)g(calling)i Fz(SelectBu\013er)f FC(while)g(in)g |
| (selection)h(mo)q(de.)191 1753 y(In)e(selection)g(mo)q(de,)f(if)h(a)f |
| (p)q(oin)o(t,)g(line,)i(p)q(olygon,)e(or)g(the)g(v)m(alid)h(co)q |
| (ordinates)g(pro-)120 1810 y(duced)j(b)o(y)f(a)g Fz(RasterP)o(os)f |
| FC(command)h(in)o(tersects)g(the)g(clip)i(v)o(olume)e(\(section)g |
| (2.11\))120 1866 y(then)e(this)h(primitiv)o(e)g(\(or)e |
| Fz(RasterP)o(os)f FC(command\))i(causes)g(a)f(selection)i |
| Fv(hit)p FC(.)k(In)c(the)120 1923 y(case)h(of)g(p)q(olygons,)g(no)f |
| (hit)i(o)q(ccurs)f(if)g(the)g(p)q(olygon)g(w)o(ould)g(ha)o(v)o(e)g(b)q |
| (een)h(culled,)h(but)120 1979 y(selection)h(is)f(based)g(on)g(the)f(p)q |
| (olygon)h(itself,)h(regardless)f(of)f(the)g(setting)h(of)f |
| Fz(P)o(oly-)120 2036 y(gonMo)q(de)p FC(.)23 b(When)16 |
| b(in)g(selection)i(mo)q(de,)e(whenev)o(er)g(a)f(name)h(stac)o(k)f |
| (manipulation)120 2092 y(command)j(is)f(executed)h(or)f |
| Fz(RenderMo)q(de)g FC(is)h(called)h(and)e(there)h(has)f(b)q(een)h(a)f |
| (hit)120 2148 y(since)f(the)e(last)g(time)h(the)f(stac)o(k)f(w)o(as)h |
| (manipulated)h(or)f Fz(RenderMo)q(de)g FC(w)o(as)g(called,)120 |
| 2205 y(then)i(a)f Fv(hit)h(r)n(e)n(c)n(or)n(d)f FC(is)h(written)f(in)o |
| (to)g(the)g(selection)i(arra)o(y)l(.)191 2262 y(A)k(hit)h(record)f |
| (consists)h(of)f(the)g(follo)o(wing)h(items)g(in)g(order:)32 |
| b(a)21 b(non-negativ)o(e)120 2319 y(in)o(teger)15 b(giving)h(the)f(n)o |
| (um)o(b)q(er)h(of)e(elemen)o(ts)i(on)f(the)g(name)f(stac)o(k)h(at)f |
| (the)h(time)g(of)g(the)120 2375 y(hit,)i(a)f(minim)o(um)h(depth)g(v)m |
| (alue,)g(a)f(maxim)o(um)g(depth)h(v)m(alue,)h(and)e(the)g(name)h(stac)o |
| (k)120 2432 y(with)22 b(the)f(b)q(ottommost)f(elemen)o(t)i(\014rst.)37 |
| b(The)21 b(minim)o(um)i(and)e(maxim)o(um)g(depth)120 |
| 2488 y(v)m(alues)14 b(are)d(the)h(minim)o(um)h(and)g(maxim)o(um)e(tak)o |
| (en)h(o)o(v)o(er)f(all)i(the)f(windo)o(w)g(co)q(ordinate)p |
| eop |
| %%Page: 136 145 |
| 136 144 bop 332 137 a FC(136)622 b Fx(CHAPTER)15 b(5.)35 |
| b(SPECIAL)16 b(FUNCTIONS)332 286 y Fy(z)i FC(v)m(alues)g(of)d(eac)o(h)i |
| (\(p)q(ost-clipping\))h(v)o(ertex)d(of)h(eac)o(h)g(primitiv)o(e)i(that) |
| d(in)o(tersects)h(the)332 343 y(clipping)21 b(v)o(olume)e(since)h(the)f |
| (last)g(hit)g(record)g(w)o(as)f(written.)30 b(The)19 |
| b(minim)o(um)h(and)332 399 y(maxim)o(um)i(\(eac)o(h)g(of)f(whic)o(h)i |
| (lies)g(in)g(the)f(range)g([0)p Fy(;)8 b FC(1]\))19 b(are)j(eac)o(h)g |
| (m)o(ultiplied)j(b)o(y)332 456 y(2)355 439 y Fq(32)405 |
| 456 y FB(\000)13 b FC(1)19 b(and)g(rounded)h(to)f(the)g(nearest)g |
| (unsigned)i(in)o(teger)e(to)g(obtain)g(the)g(v)m(alues)332 |
| 512 y(that)14 b(are)h(placed)h(in)g(the)f(hit)h(record.)k(No)15 |
| b(depth)g(o\013set)f(arithmetic)i(\(section)f(3.5.5\))332 |
| 569 y(is)h(p)q(erformed)f(on)g(these)h(v)m(alues.)403 |
| 629 y(Hit)j(records)g(are)f(placed)j(in)e(the)g(selection)i(arra)o(y)c |
| (b)o(y)i(main)o(taining)h(a)f(p)q(oin)o(ter)332 685 y(in)o(to)14 |
| b(that)e(arra)o(y)l(.)19 b(When)14 b(selection)h(mo)q(de)e(is)i(en)o |
| (tered,)e(the)h(p)q(oin)o(ter)g(is)g(initialized)j(to)332 |
| 742 y(the)f(b)q(eginning)j(of)c(the)i(arra)o(y)l(.)k(Eac)o(h)16 |
| b(time)h(a)e(hit)i(record)f(is)h(copied,)g(the)f(p)q(oin)o(ter)h(is)332 |
| 798 y(up)q(dated)e(to)f(p)q(oin)o(t)h(at)f(the)g(arra)o(y)g(elemen)o(t) |
| h(after)e(the)i(one)f(in)o(to)h(whic)o(h)g(the)g(topmost)332 |
| 855 y(elemen)o(t)20 b(of)f(the)g(name)h(stac)o(k)e(w)o(as)h(stored.)31 |
| b(If)20 b(cop)o(ying)g(the)f(hit)h(record)f(in)o(to)g(the)332 |
| 911 y(selection)e(arra)o(y)c(w)o(ould)j(cause)f(the)h(total)e(n)o(um)o |
| (b)q(er)i(of)e(v)m(alues)i(to)f(exceed)h Fv(n)p FC(,)e(then)i(as)332 |
| 967 y(m)o(uc)o(h)f(of)f(the)g(record)h(as)f(\014ts)g(in)h(the)g(arra)o |
| (y)e(is)i(written)g(and)f(an)h(o)o(v)o(er\015o)o(w)e(\015ag)h(is)h |
| (set.)403 1027 y(Selection)23 b(mo)q(de)e(is)h(exited)g(b)o(y)f |
| (calling)i Fz(RenderMo)q(de)e FC(with)h(an)f(argumen)o(t)332 |
| 1084 y(v)m(alue)j(other)f(than)g Fr(SELECT)p FC(.)e(Whenev)o(er)j |
| Fz(RenderMo)q(de)f FC(is)g(called)i(in)f(selection)332 |
| 1140 y(mo)q(de,)19 b(it)f(returns)g(the)g(n)o(um)o(b)q(er)g(of)f(hit)i |
| (records)e(copied)j(in)o(to)d(the)h(selection)i(arra)o(y)332 |
| 1197 y(and)d(resets)g(the)g Fz(SelectBu\013er)g FC(p)q(oin)o(ter)h(to)e |
| (its)h(last)g(sp)q(eci\014ed)i(v)m(alue.)27 b(V)l(alues)18 |
| b(are)332 1253 y(not)f(guaran)o(teed)h(to)f(b)q(e)h(written)g(in)o(to)f |
| (the)h(selection)h(arra)o(y)e(un)o(til)i Fz(RenderMo)q(de)332 |
| 1310 y FC(is)g(called.)31 b(If)18 b(the)g(selection)i(arra)o(y)d(o)o(v) |
| o(er\015o)o(w)g(\015ag)h(w)o(as)g(set,)g(then)h Fz(RenderMo)q(de)332 |
| 1366 y FC(returns)d FB(\000)p FC(1)f(and)h(clears)h(the)e(o)o(v)o |
| (er\015o)o(w)g(\015ag.)21 b(The)16 b(name)g(stac)o(k)f(is)h(cleared)g |
| (and)g(the)332 1423 y(stac)o(k)f(p)q(oin)o(ter)g(reset)g(whenev)o(er)h |
| Fz(RenderMo)q(de)f FC(is)h(called.)403 1483 y(The)i(state)e(required)j |
| (for)e(selection)i(consists)f(of)g(the)f(address)h(of)f(the)h |
| (selection)332 1539 y(arra)o(y)f(and)h(its)h(maxim)o(um)f(size,)h(the)f |
| (name)g(stac)o(k)g(and)g(its)g(asso)q(ciated)h(p)q(oin)o(ter,)g(a)332 |
| 1595 y(minim)o(um)f(and)e(maxim)o(um)h(depth)g(v)m(alue,)h(and)e(sev)o |
| (eral)h(\015ags.)24 b(One)17 b(\015ag)f(indicates)332 |
| 1652 y(the)c(curren)o(t)f Fz(RenderMo)q(de)g FC(v)m(alue.)20 |
| b(In)12 b(the)g(initial)i(state,)d(the)g(GL)h(is)g(in)g(the)g |
| Fr(RENDER)332 1708 y FC(mo)q(de.)29 b(Another)18 b(\015ag)f(is)i(used)f |
| (to)g(indicate)h(whether)g(or)e(not)h(a)f(hit)i(has)f(o)q(ccurred)332 |
| 1765 y(since)k(the)e(last)g(name)g(stac)o(k)g(manipulation.)36 |
| b(This)21 b(\015ag)f(is)h(reset)f(up)q(on)h(en)o(tering)332 |
| 1821 y(selection)d(mo)q(de)f(and)f(whenev)o(er)h(a)f(name)h(stac)o(k)e |
| (manipulation)j(tak)o(es)e(place.)25 b(One)332 1878 y(\014nal)20 |
| b(\015ag)g(is)g(required)g(to)f(indicate)i(whether)f(the)g(maxim)o(um)f |
| (n)o(um)o(b)q(er)h(of)f(copied)332 1934 y(names)c(w)o(ould)g(ha)o(v)o |
| (e)g(b)q(een)h(exceeded.)21 b(This)16 b(\015ag)f(is)g(reset)g(up)q(on)h |
| (en)o(tering)f(selection)332 1991 y(mo)q(de.)27 b(This)18 |
| b(\015ag,)g(the)g(address)f(of)g(the)h(selection)h(arra)o(y)l(,)e(and)g |
| (its)h(maxim)o(um)g(size)332 2047 y(are)d(GL)g(clien)o(t)i(state.)332 |
| 2210 y Fs(5.3)66 b(F)-6 b(eedbac)n(k)332 2319 y FC(F)l(eedbac)o(k,)22 |
| b(lik)o(e)g(selection,)h(is)e(a)f(GL)g(mo)q(de.)37 b(The)21 |
| b(mo)q(de)f(is)h(selected)h(b)o(y)f(calling)332 2375 |
| y Fz(RenderMo)q(de)16 b FC(with)h Fr(FEEDBACK)p FC(.)d(When)j(the)f(GL) |
| g(is)h(in)g(feedbac)o(k)g(mo)q(de,)f(no)g(frag-)332 2432 |
| y(men)o(ts)d(are)g(written)h(to)e(the)i(framebu\013er.)19 |
| b(Instead,)13 b(information)h(ab)q(out)f(primitiv)o(es)332 |
| 2488 y(that)g(w)o(ould)g(ha)o(v)o(e)g(b)q(een)i(rasterized)e(is)h(fed)f |
| (bac)o(k)h(to)e(the)i(application)g(using)g(the)g(GL.)p |
| eop |
| %%Page: 137 146 |
| 137 145 bop 120 137 a Fx(5.3.)34 b(FEEDBA)o(CK)1061 b |
| FC(137)191 286 y(F)l(eedbac)o(k)16 b(is)f(con)o(trolled)h(using)234 |
| 394 y Fw(void)24 b Fz(F)l(eedbac)o(kBu\013er)p FC(\()f |
| Fw(sizei)12 b Fv(n)p Fw(,)h(enum)f Fv(typ)n(e)p Fw(,)g(float)g |
| Fv(*bu\013er)h FC(\))f Fw(;)120 502 y Fv(bu\013er)h FC(is)f(a)g(p)q |
| (oin)o(ter)g(to)f(an)h(arra)o(y)f(of)g(\015oating-p)q(oin)o(t)i(v)m |
| (alues)g(in)o(to)f(whic)o(h)g(feedbac)o(k)h(in-)120 558 |
| y(formation)e(will)i(b)q(e)f(placed,)g(and)g Fv(n)f FC(is)g(a)g(n)o(um) |
| o(b)q(er)h(indicating)h(the)e(maxim)o(um)g(n)o(um)o(b)q(er)120 |
| 615 y(of)16 b(v)m(alues)g(that)f(can)h(b)q(e)h(written)e(to)g(that)g |
| (arra)o(y)l(.)20 b Fv(typ)n(e)c FC(is)g(a)g(sym)o(b)q(olic)g(constan)o |
| (t)f(de-)120 671 y(scribing)g(the)e(information)g(to)f(b)q(e)h(fed)g |
| (bac)o(k)g(for)f(eac)o(h)h(v)o(ertex)g(\(see)g(Figure)g(5.2\).)k(The) |
| 120 728 y(error)d Fr(INVALID)p 388 728 14 2 v 14 w(OPERATION)f |
| FC(results)h(if)h(the)f(GL)h(is)g(placed)g(in)g(feedbac)o(k)g(mo)q(de)f |
| (b)q(efore)120 784 y(a)i(call)g(to)f Fz(F)l(eedbac)o(kBu\013er)f |
| FC(has)h(b)q(een)i(made,)e(or)g(if)h(a)f(call)h(to)f |
| Fz(F)l(eedbac)o(kBu\013er)120 841 y FC(is)h(made)f(while)i(in)f |
| (feedbac)o(k)g(mo)q(de.)191 900 y(While)23 b(in)f(feedbac)o(k)f(mo)q |
| (de,)i(eac)o(h)e(primitiv)o(e)i(that)d(w)o(ould)i(b)q(e)g(rasterized)g |
| (\(or)120 957 y(bitmap)h(or)e(call)i(to)e Fz(Dra)o(wPixels)g |
| FC(or)h Fz(Cop)o(yPixels)p FC(,)g(if)g(the)g(raster)f(p)q(osition)i(is) |
| 120 1013 y(v)m(alid\))d(generates)e(a)g(blo)q(c)o(k)h(of)f(v)m(alues)i |
| (that)d(get)h(copied)i(in)o(to)e(the)g(feedbac)o(k)h(arra)o(y)l(.)120 |
| 1070 y(If)d(doing)h(so)e(w)o(ould)h(cause)g(the)g(n)o(um)o(b)q(er)g(of) |
| f(en)o(tries)i(to)e(exceed)h(the)g(maxim)o(um,)g(the)120 |
| 1126 y(blo)q(c)o(k)h(is)f(partially)h(written)f(so)g(as)f(to)h(\014ll)h |
| (the)f(arra)o(y)f(\(if)h(there)g(is)g(an)o(y)g(ro)q(om)f(left)h(at)120 |
| 1183 y(all\).)22 b(The)15 b(\014rst)g(blo)q(c)o(k)i(of)e(v)m(alues)h |
| (generated)g(after)e(the)i(GL)f(en)o(ters)h(feedbac)o(k)f(mo)q(de)120 |
| 1239 y(is)22 b(placed)g(at)e(the)h(b)q(eginning)h(of)f(the)g(feedbac)o |
| (k)g(arra)o(y)l(,)g(with)g(subsequen)o(t)g(blo)q(c)o(ks)120 |
| 1296 y(follo)o(wing.)g(Eac)o(h)15 b(blo)q(c)o(k)h(b)q(egins)h(with)e(a) |
| g(co)q(de)h(indicating)h(the)f(primitiv)o(e)g(t)o(yp)q(e,)f(fol-)120 |
| 1352 y(lo)o(w)o(ed)j(b)o(y)f(v)m(alues)i(that)d(describ)q(e)j(the)f |
| (primitiv)o(e's)g(v)o(ertices)g(and)f(asso)q(ciated)h(data.)120 |
| 1409 y(En)o(tries)f(are)f(also)h(written)f(for)g(bitmaps)h(and)g(pixel) |
| h(rectangles.)24 b(F)l(eedbac)o(k)17 b(o)q(ccurs)120 |
| 1465 y(after)i(p)q(olygon)g(culling)i(\(section)e(3.5.1\))e(and)i |
| Fz(P)o(olygonMo)q(de)g FC(in)o(terpretation)g(of)120 |
| 1521 y(p)q(olygons)f(\(section)g(3.5.4\))d(has)i(tak)o(en)g(place.)27 |
| b(It)17 b(ma)o(y)g(also)g(o)q(ccur)h(after)e(p)q(olygons)120 |
| 1578 y(with)i(more)f(than)g(three)g(edges)g(are)g(brok)o(en)g(up)h(in)o |
| (to)f(triangles)g(\(if)h(the)f(GL)g(imple-)120 1634 y(men)o(tation)e |
| (renders)f(p)q(olygons)h(b)o(y)g(p)q(erforming)f(this)h(decomp)q |
| (osition\).)21 b Fy(x)p FC(,)14 b Fy(y)r FC(,)g(and)h |
| Fy(z)120 1691 y FC(co)q(ordinates)h(returned)h(b)o(y)e(feedbac)o(k)h |
| (are)g(windo)o(w)g(co)q(ordinates;)g(if)g Fy(w)g FC(is)h(returned,)120 |
| 1747 y(it)i(is)g(in)g(clip)h(co)q(ordinates.)29 b(No)18 |
| b(depth)h(o\013set)f(arithmetic)g(\(section)h(3.5.5\))d(is)j(p)q(er-) |
| 120 1804 y(formed)h(on)f(the)g Fy(z)j FC(v)m(alues.)34 |
| b(In)20 b(the)f(case)h(of)f(bitmaps)h(and)f(pixel)i(rectangles,)g(the) |
| 120 1860 y(co)q(ordinates)d(returned)g(are)g(those)f(of)g(the)h(curren) |
| o(t)f(raster)g(p)q(osition.)28 b(The)18 b(texture)120 |
| 1917 y(co)q(ordinates)f(and)f(colors)g(returned)h(are)e(those)h |
| (resulting)h(from)f(the)g(clipping)i(op)q(er-)120 1973 |
| y(ations)d(as)g(describ)q(ed)i(in)f(\(section)g(2.13.8\).)191 |
| 2033 y(The)11 b(ordering)g(rules)h(for)e(GL)h(command)g(in)o |
| (terpretation)g(also)g(apply)h(in)f(feedbac)o(k)120 2090 |
| y(mo)q(de.)20 b(Eac)o(h)15 b(command)g(m)o(ust)g(b)q(e)g(fully)i(in)o |
| (terpreted)e(and)h(its)f(e\013ects)g(on)g(b)q(oth)g(GL)120 |
| 2146 y(state)h(and)h(the)f(v)m(alues)i(to)e(b)q(e)h(written)g(to)f(the) |
| g(feedbac)o(k)h(bu\013er)g(completed)g(b)q(efore)120 |
| 2202 y(a)e(subsequen)o(t)h(command)f(ma)o(y)g(b)q(e)h(executed.)191 |
| 2262 y(The)d(GL)g(is)g(tak)o(en)f(out)h(of)f(feedbac)o(k)h(mo)q(de)g(b) |
| o(y)g(calling)h Fz(RenderMo)q(de)f FC(with)g(an)120 2319 |
| y(argumen)o(t)j(v)m(alue)h(other)e(than)h Fr(FEEDBACK)p |
| FC(.)e(When)j(called)g(while)h(in)e(feedbac)o(k)h(mo)q(de,)120 |
| 2375 y Fz(RenderMo)q(de)i FC(returns)f(the)g(n)o(um)o(b)q(er)h(of)f(v)m |
| (alues)i(placed)f(in)h(the)e(feedbac)o(k)h(arra)o(y)120 |
| 2432 y(and)e(resets)g(the)f(feedbac)o(k)h(arra)o(y)f(p)q(oin)o(ter)h |
| (to)f(b)q(e)h Fv(bu\013er)p FC(.)24 b(The)17 b(return)g(v)m(alue)h(nev) |
| o(er)120 2488 y(exceeds)f(the)e(maxim)o(um)g(n)o(um)o(b)q(er)g(of)g(v)m |
| (alues)i(passed)e(to)g Fz(F)l(eedbac)o(kBu\013er)p FC(.)p |
| eop |
| %%Page: 138 147 |
| 138 146 bop 332 137 a FC(138)622 b Fx(CHAPTER)15 b(5.)35 |
| b(SPECIAL)16 b(FUNCTIONS)p 439 242 1280 2 v 438 299 2 |
| 57 v 581 282 a FC(T)o(yp)q(e)p 825 299 V 168 w(co)q(ordinates)p |
| 1101 299 V 50 w(color)p 1247 299 V 50 w(texture)p 1440 |
| 299 V 49 w(total)f(v)m(alues)p 1718 299 V 439 301 1280 |
| 2 v 439 309 V 438 365 2 57 v 611 348 a Fr(2D)p 825 365 |
| V 196 w Fy(x)p FC(,)f Fy(y)p 1101 365 V 201 w FC({)p |
| 1247 365 V 123 w({)p 1440 365 V 169 w(2)p 1718 365 V |
| 439 367 1280 2 v 438 423 2 57 v 611 406 a Fr(3D)p 825 |
| 423 V 196 w Fy(x)p FC(,)g Fy(y)r FC(,)h Fy(z)p 1101 423 |
| V 150 w FC({)p 1247 423 V 123 w({)p 1440 423 V 169 w(3)p |
| 1718 423 V 439 425 1280 2 v 438 482 2 57 v 549 465 a |
| Fr(3D)p 596 465 14 2 v 15 w(COLOR)p 825 482 2 57 v 133 |
| w Fy(x)p FC(,)f Fy(y)r FC(,)h Fy(z)p 1101 482 V 150 w(k)p |
| 1247 482 V 122 w FC({)p 1440 482 V 169 w(3)10 b(+)h Fy(k)p |
| 1718 482 V 439 483 1280 2 v 438 540 2 57 v 464 523 a |
| Fr(3D)p 511 523 14 2 v 16 w(COLOR)p 637 523 V 14 w(TEXTURE)p |
| 825 540 2 57 v 49 w Fy(x)p FC(,)j Fy(y)r FC(,)h Fy(z)p |
| 1101 540 V 150 w(k)p 1247 540 V 122 w FC(4)p 1440 540 |
| V 169 w(7)10 b(+)h Fy(k)p 1718 540 V 439 541 1280 2 v |
| 438 598 2 57 v 464 581 a Fr(4D)p 511 581 14 2 v 16 w(COLOR)p |
| 637 581 V 14 w(TEXTURE)p 825 598 2 57 v 49 w Fy(x)p FC(,)j |
| Fy(y)r FC(,)h Fy(z)r FC(,)g Fy(w)p 1101 598 V 87 w(k)p |
| 1247 598 V 122 w FC(4)p 1440 598 V 169 w(8)10 b(+)h Fy(k)p |
| 1718 598 V 439 599 1280 2 v 332 726 a FC(T)l(able)k(5.2:)j(Corresp)q |
| (ondence)d(of)e(feedbac)o(k)h(t)o(yp)q(e)g(to)f(n)o(um)o(b)q(er)i(of)e |
| (v)m(alues)i(p)q(er)f(v)o(ertex.)332 783 y Fy(k)i FC(is)g(1)f(in)h |
| (color)f(index)i(mo)q(de)e(and)h(4)e(in)i(R)o(GBA)g(mo)q(de.)403 |
| 926 y(If)g(writing)h(a)e(v)m(alue)j(to)d(the)h(feedbac)o(k)h(bu\013er)f |
| (w)o(ould)g(cause)g(more)g(v)m(alues)h(to)f(b)q(e)332 |
| 982 y(written)e(than)f(the)g(sp)q(eci\014ed)j(maxim)o(um)d(n)o(um)o(b)q |
| (er)h(of)f(v)m(alues,)i(then)f(the)f(v)m(alue)i(is)f(not)332 |
| 1038 y(written)i(and)f(an)h(o)o(v)o(er\015o)o(w)e(\015ag)h(is)h(set.)21 |
| b(In)16 b(this)g(case,)g Fz(RenderMo)q(de)f FC(returns)g |
| FB(\000)p FC(1)332 1095 y(when)j(it)g(is)g(called,)h(after)e(whic)o(h)i |
| (the)e(o)o(v)o(er\015o)o(w)g(\015ag)g(is)h(reset.)27 |
| b(While)19 b(in)f(feedbac)o(k)332 1151 y(mo)q(de,)12 |
| b(v)m(alues)g(are)e(not)h(guaran)o(teed)f(to)h(b)q(e)g(written)g(in)o |
| (to)g(the)g(feedbac)o(k)g(bu\013er)g(b)q(efore)332 1208 |
| y Fz(RenderMo)q(de)k FC(is)h(called.)403 1271 y(Figure)i(5.2)f(giv)o |
| (es)g(a)h(grammar)e(for)h(the)h(arra)o(y)f(pro)q(duced)i(b)o(y)f |
| (feedbac)o(k.)28 b(Eac)o(h)332 1328 y(primitiv)o(e)14 |
| b(is)f(indicated)h(with)f(a)f(unique)i(iden)o(tifying)g(v)m(alue)g |
| (follo)o(w)o(ed)f(b)o(y)f(some)g(n)o(um-)332 1384 y(b)q(er)i(of)f(v)o |
| (ertices.)19 b(A)14 b(v)o(ertex)f(is)h(fed)f(bac)o(k)h(as)f(some)g(n)o |
| (um)o(b)q(er)g(of)g(\015oating-p)q(oin)o(t)h(v)m(alues)332 |
| 1441 y(determined)21 b(b)o(y)e(the)h(feedbac)o(k)g Fv(typ)n(e)p |
| FC(.)32 b(T)l(able)20 b(5.2)f(giv)o(es)g(the)h(corresp)q(ondence)h(b)q |
| (e-)332 1497 y(t)o(w)o(een)e(feedbac)o(k)g Fv(bu\013er)g |
| FC(and)g(the)g(n)o(um)o(b)q(er)g(of)g(v)m(alues)h(returned)f(for)f(eac) |
| o(h)h(v)o(ertex.)403 1617 y(The)c(command)446 1739 y |
| Fw(void)29 b Fz(P)o(assThrough)p FC(\()h Fw(float)14 |
| b Fv(token)h FC(\))g Fw(;)332 1860 y FC(ma)o(y)e(b)q(e)i(used)g(as)e(a) |
| h(mark)o(er)f(in)i(feedbac)o(k)f(mo)q(de.)20 b Fv(token)14 |
| b FC(is)g(returned)h(as)e(if)i(it)f(w)o(ere)g(a)332 1917 |
| y(primitiv)o(e;)g(it)f(is)g(indicated)h(with)e(its)h(o)o(wn)f(unique)h |
| (iden)o(tifying)h(v)m(alue.)21 b(The)12 b(ordering)332 |
| 1973 y(of)17 b(an)o(y)g Fz(P)o(assThrough)g FC(commands)g(with)g(resp)q |
| (ect)h(to)f(primitiv)o(e)i(sp)q(eci\014cation)g(is)332 |
| 2030 y(main)o(tained)14 b(b)o(y)f(feedbac)o(k.)20 b Fz(P)o(assThrough) |
| 12 b FC(ma)o(y)g(not)h(o)q(ccur)g(b)q(et)o(w)o(een)g |
| Fz(Begin)h FC(and)332 2086 y Fz(End)p FC(.)20 b(It)c(has)f(no)g |
| (e\013ect)g(when)g(the)h(GL)f(is)h(not)e(in)i(feedbac)o(k)g(mo)q(de.) |
| 403 2149 y(The)f(state)f(required)h(for)f(feedbac)o(k)i(is)f(the)g(p)q |
| (oin)o(ter)g(to)f(the)h(feedbac)o(k)g(arra)o(y)l(,)e(the)332 |
| 2206 y(maxim)o(um)f(n)o(um)o(b)q(er)f(of)g(v)m(alues)i(that)e(ma)o(y)g |
| (b)q(e)h(placed)h(there,)f(and)f(the)h(feedbac)o(k)g |
| Fv(typ)n(e)p FC(.)332 2262 y(An)22 b(o)o(v)o(er\015o)o(w)d(\015ag)i(is) |
| h(required)g(to)e(indicate)j(whether)e(the)h(maxim)o(um)f(allo)o(w)o |
| (able)332 2319 y(n)o(um)o(b)q(er)f(of)g(feedbac)o(k)h(v)m(alues)g(has)f |
| (b)q(een)h(written;)h(initially)h(this)e(\015ag)e(is)i(cleared.)332 |
| 2375 y(These)16 b(state)g(v)m(ariables)h(are)f(GL)g(clien)o(t)h(state.) |
| k(F)l(eedbac)o(k)c(also)e(relies)j(on)e(the)g(same)332 |
| 2432 y(mo)q(de)g(\015ag)g(as)f(selection)i(to)e(indicate)j(whether)e |
| (the)g(GL)f(is)i(in)f(feedbac)o(k,)g(selection,)332 2488 |
| y(or)f(normal)g(rendering)h(mo)q(de.)p eop |
| %%Page: 139 148 |
| 139 147 bop 120 137 a Fx(5.3.)34 b(FEEDBA)o(CK)1061 b |
| FC(139)120 451 y(feedbac)o(k-list:)255 507 y(feedbac)o(k-item)17 |
| b(feedbac)o(k-list)255 564 y(feedbac)o(k-item)120 676 |
| y(feedbac)o(k-item:)255 733 y(p)q(oin)o(t)255 789 y(line-segmen)o(t)255 |
| 846 y(p)q(olygon)255 902 y(bitmap)255 959 y(pixel-rectangle)255 |
| 1015 y(passthrough)120 1128 y(p)q(oin)o(t:)255 1185 y |
| Fr(POINT)p 368 1185 14 2 v 15 w(TOKEN)d FC(v)o(ertex)120 |
| 1241 y(line-segmen)o(t:)255 1297 y Fr(LINE)p 346 1297 |
| V 15 w(TOKEN)g FC(v)o(ertex)h(v)o(ertex)255 1354 y Fr(LINE)p |
| 346 1354 V 15 w(RESET)p 471 1354 V 15 w(TOKEN)f FC(v)o(ertex)h(v)o |
| (ertex)120 1410 y(p)q(olygon:)255 1467 y Fr(POLYGON)p |
| 412 1467 V 15 w(TOKEN)f Fy(n)h FC(p)q(olygon-sp)q(ec)120 |
| 1523 y(p)q(olygon-sp)q(ec:)255 1580 y(p)q(olygon-sp)q(ec)i(v)o(ertex) |
| 255 1636 y(v)o(ertex)e(v)o(ertex)g(v)o(ertex)120 1693 |
| y(bitmap:)255 1749 y Fr(BITMAP)p 390 1749 V 15 w(TOKEN)f |
| FC(v)o(ertex)943 507 y(pixel-rectangle:)1078 564 y Fr(DRAW)p |
| 1169 564 V 15 w(PIXEL)p 1294 564 V 14 w(TOKEN)g FC(v)o(ertex)1078 |
| 620 y Fr(COPY)p 1169 620 V 15 w(PIXEL)p 1294 620 V 14 |
| w(TOKEN)g FC(v)o(ertex)943 676 y(passthrough:)1078 733 |
| y Fr(PASS)p 1169 733 V 15 w(THROUGH)p 1338 733 V 14 w(TOKEN)g |
| Fy(f)943 846 y FC(v)o(ertex:)943 902 y Fr(2D)p FC(:)1078 |
| 959 y Fy(f)20 b(f)943 1015 y Fr(3D)p FC(:)1078 1072 y |
| Fy(f)g(f)g(f)943 1128 y Fr(3D)p 990 1128 V 15 w(COLOR)p |
| FC(:)1078 1185 y Fy(f)g(f)g(f)h FC(color)943 1241 y Fr(3D)p |
| 990 1241 V 15 w(COLOR)p 1115 1241 V 15 w(TEXTURE)p FC(:)1078 |
| 1297 y Fy(f)f(f)g(f)h FC(color)15 b(tex)943 1354 y Fr(4D)p |
| 990 1354 V 15 w(COLOR)p 1115 1354 V 15 w(TEXTURE)p FC(:)1078 |
| 1410 y Fy(f)20 b(f)g(f)h(f)f FC(color)15 b(tex)943 1523 |
| y(color:)1078 1580 y Fy(f)20 b(f)g(f)h(f)1078 1636 y(f)943 |
| 1749 y FC(tex:)1078 1806 y Fy(f)f(f)g(f)h(f)120 1970 |
| y FC(Figure)c(5.2:)k(F)l(eedbac)o(k)16 b(syn)o(tax.)23 |
| b Fy(f)e FC(is)c(a)e(\015oating-p)q(oin)o(t)i(n)o(um)o(b)q(er.)24 |
| b Fy(n)16 b FC(is)h(a)f(\015oating-)120 2027 y(p)q(oin)o(t)24 |
| b(in)o(teger)f(giving)g(the)g(n)o(um)o(b)q(er)g(of)f(v)o(ertices)h(in)h |
| (a)e(p)q(olygon.)43 b(The)23 b(sym)o(b)q(ols)120 2083 |
| y(ending)16 b(with)p 371 2083 15 2 v 32 w Fw(TOKEN)d |
| FC(are)h(sym)o(b)q(olic)h(\015oating-p)q(oin)o(t)g(constan)o(ts.)k(The) |
| 14 b(lab)q(els)i(under)120 2140 y(the)k(\\v)o(ertex")f(rule)i(sho)o(w)e |
| (the)h(di\013eren)o(t)g(data)f(returned)h(for)f(v)o(ertices)h(dep)q |
| (ending)120 2196 y(on)c(the)f(feedbac)o(k)h Fv(typ)n(e)p |
| FC(.)k Fr(LINE)p 651 2196 14 2 v 15 w(TOKEN)15 b FC(and)g |
| Fr(LINE)p 967 2196 V 15 w(RESET)p 1092 2196 V 15 w(TOKEN)f |
| FC(are)h(iden)o(tical)i(except)120 2253 y(that)h(the)g(latter)g(is)g |
| (returned)h(only)g(when)f(the)g(line)i(stipple)g(is)e(reset)g(for)g |
| (that)f(line)120 2309 y(segmen)o(t.)p eop |
| %%Page: 140 149 |
| 140 148 bop 332 137 a FC(140)622 b Fx(CHAPTER)15 b(5.)35 |
| b(SPECIAL)16 b(FUNCTIONS)332 286 y Fs(5.4)66 b(Displa)n(y)24 |
| b(Lists)332 388 y FC(A)17 b(displa)o(y)i(list)f(is)g(simply)g(a)f |
| (group)g(of)g(GL)g(commands)g(and)h(argumen)o(ts)e(that)h(has)332 |
| 444 y(b)q(een)d(stored)f(for)g(subsequen)o(t)h(execution.)20 |
| b(The)14 b(GL)f(ma)o(y)g(b)q(e)g(instructed)i(to)d(pro)q(cess)332 |
| 501 y(a)18 b(particular)h(displa)o(y)h(list)f(\(p)q(ossibly)g(rep)q |
| (eatedly\))h(b)o(y)e(pro)o(viding)h(a)f(n)o(um)o(b)q(er)h(that)332 |
| 557 y(uniquely)h(sp)q(eci\014es)g(it.)29 b(Doing)18 b(so)g(causes)h |
| (the)f(commands)g(within)h(the)f(list)h(to)f(b)q(e)332 |
| 614 y(executed)h(just)e(as)g(if)h(they)g(w)o(ere)f(giv)o(en)h(normally) |
| l(.)28 b(The)18 b(only)g(exception)h(p)q(ertains)332 |
| 670 y(to)e(commands)g(that)g(rely)g(up)q(on)h(clien)o(t)h(state.)26 |
| b(When)17 b(suc)o(h)h(a)f(command)g(is)h(accu-)332 727 |
| y(m)o(ulated)d(in)o(to)g(the)g(displa)o(y)h(list)g(\(that)e(is,)h(when) |
| g(issued,)h(not)f(when)g(executed\),)g(the)332 783 y(clien)o(t)g(state) |
| e(in)h(e\013ect)f(at)g(that)g(time)h(applies)h(to)e(the)g(command.)19 |
| b(Only)c(serv)o(er)e(state)332 840 y(is)18 b(a\013ected)g(when)g(the)g |
| (command)g(is)g(executed.)29 b(As)18 b(alw)o(a)o(ys,)f(p)q(oin)o(ters)h |
| (whic)o(h)h(are)332 896 y(passed)f(as)e(argumen)o(ts)h(to)f(commands)h |
| (are)g(dereferenced)i(when)f(the)f(command)g(is)332 952 |
| y(issued.)34 b(\(V)l(ertex)20 b(arra)o(y)e(p)q(oin)o(ters)i(are)f |
| (dereferenced)i(when)f(the)g(commands)f Fz(Ar-)332 1009 |
| y(ra)o(yElemen)o(t)p FC(,)i Fz(Dra)o(wArra)o(ys)p FC(,)e(or)h |
| Fz(Dra)o(wElemen)o(ts)g FC(are)h(accum)o(ulated)g(in)o(to)g(a)332 |
| 1065 y(displa)o(y)16 b(list.\))403 1122 y(A)f(displa)o(y)h(list)g(is)g |
| (b)q(egun)g(b)o(y)f(calling)446 1209 y Fw(void)29 b Fz(NewList)p |
| FC(\()i Fw(uint)15 b Fv(n)p Fw(,)f(enum)h Fv(mo)n(de)g |
| FC(\))g Fw(;)332 1297 y Fv(n)g FC(is)g(a)g(p)q(ositiv)o(e)h(in)o(teger) |
| f(to)g(whic)o(h)h(the)f(displa)o(y)h(list)g(that)e(follo)o(ws)h(is)h |
| (assigned,)f(and)332 1353 y Fv(mo)n(de)20 b FC(is)g(a)f(sym)o(b)q(olic) |
| h(constan)o(t)f(that)f(con)o(trols)h(the)h(b)q(eha)o(vior)g(of)f(the)g |
| (GL)h(during)332 1410 y(displa)o(y)e(list)g(creation.)26 |
| b(If)17 b Fv(mo)n(de)h FC(is)f Fr(COMPILE)p FC(,)f(then)h(commands)g |
| (are)g(not)g(executed)332 1466 y(as)g(they)g(are)g(placed)h(in)g(the)f |
| (displa)o(y)h(list.)26 b(If)17 b Fv(mo)n(de)h FC(is)f |
| Fr(COMPILE)p 1476 1466 14 2 v 14 w(AND)p 1556 1466 V |
| 16 w(EXECUTE)e FC(then)332 1523 y(commands)f(are)g(executed)h(as)f |
| (they)g(are)g(encoun)o(tered,)h(then)g(placed)g(in)g(the)f(displa)o(y) |
| 332 1579 y(list.)21 b(If)15 b Fy(n)e FC(=)g(0,)i(then)g(the)g(error)g |
| Fr(INVALID)p 1060 1579 V 14 w(VALUE)f FC(is)i(generated.)403 |
| 1636 y(After)h(calling)i Fz(NewList)f FC(all)g(subsequen)o(t)g(GL)g |
| (commands)f(are)g(placed)i(in)f(the)332 1692 y(displa)o(y)e(list)g |
| (\(in)g(the)f(order)g(the)h(commands)f(are)f(issued\))j(un)o(til)f(a)f |
| (call)h(to)446 1780 y Fw(void)29 b Fz(EndList)p FC(\()j |
| Fw(void)38 b FC(\))15 b Fw(;)332 1867 y FC(o)q(ccurs,)g(after)f(whic)o |
| (h)i(the)f(GL)g(returns)g(to)f(its)h(normal)g(command)g(execution)h |
| (state.)332 1924 y(It)11 b(is)g(only)g(when)g Fz(EndList)h |
| FC(o)q(ccurs)f(that)f(the)h(sp)q(eci\014ed)h(displa)o(y)g(list)f(is)h |
| (actually)f(asso-)332 1980 y(ciated)h(with)f(the)g(index)h(indicated)h |
| (with)e Fz(NewList)p FC(.)19 b(The)11 b(error)f Fr(INVALID)p |
| 1619 1980 V 14 w(OPERATION)332 2037 y FC(is)20 b(generated)f(if)h |
| Fz(EndList)h FC(is)f(called)h(without)f(a)f(previous)h(matc)o(hing)f |
| Fz(NewList)p FC(,)332 2093 y(or)f(if)h Fz(NewList)g FC(is)g(called)i(a) |
| d(second)h(time)g(b)q(efore)g(calling)h Fz(EndList)p |
| FC(.)31 b(The)19 b(error)332 2149 y Fr(OUT)p 401 2149 |
| V 15 w(OF)p 460 2149 V 15 w(MEMORY)12 b FC(is)i(generated)g(if)f |
| Fz(EndList)i FC(is)f(called)h(and)e(the)h(sp)q(eci\014ed)h(displa)o(y)g |
| (list)332 2206 y(cannot)h(b)q(e)i(stored)e(b)q(ecause)h(insu\016cien)o |
| (t)i(memory)d(is)h(a)o(v)m(ailable.)26 b(In)17 b(this)g(case)f(GL)332 |
| 2262 y(implemen)o(tations)g(of)e(revision)i(1.1)e(or)h(greater)e |
| (insure)j(that)e(no)h(c)o(hange)g(is)g(made)g(to)332 |
| 2319 y(the)k(previous)g(con)o(ten)o(ts)e(of)h(the)h(displa)o(y)g(list,) |
| h(if)e(an)o(y)l(,)h(and)g(that)e(no)h(other)g(c)o(hange)332 |
| 2375 y(is)g(made)f(to)g(the)g(GL)h(state,)f(except)g(for)g(the)h(state) |
| e(c)o(hanged)i(b)o(y)f(execution)h(of)f(GL)332 2432 y(commands)e(when)h |
| (the)f(displa)o(y)h(list)g(mo)q(de)g(is)g Fr(COMPILE)p |
| 1310 2432 V 14 w(AND)p 1390 2432 V 15 w(EXECUTE)p FC(.)403 |
| 2488 y(Once)g(de\014ned,)g(a)f(displa)o(y)h(list)g(is)g(executed)g(b)o |
| (y)f(calling)p eop |
| %%Page: 141 150 |
| 141 149 bop 120 137 a Fx(5.4.)34 b(DISPLA)l(Y)17 b(LISTS)978 |
| b FC(141)234 286 y Fw(void)30 b Fz(CallList)p FC(\()i |
| Fw(uint)14 b Fv(n)h FC(\))g Fw(;)120 383 y Fv(n)f FC(giv)o(es)g(the)h |
| (index)g(of)f(the)g(displa)o(y)h(list)g(to)f(b)q(e)g(called.)22 |
| b(This)14 b(causes)h(the)f(commands)120 439 y(sa)o(v)o(ed)h(in)g(the)g |
| (displa)o(y)h(list)g(to)e(b)q(e)h(executed,)g(in)h(order,)e(just)h(as)f |
| (if)h(they)g(w)o(ere)g(issued)120 496 y(without)23 b(using)g(a)f |
| (displa)o(y)i(list.)42 b(If)23 b Fy(n)i FC(=)g(0,)f(then)e(the)h(error) |
| f Fr(INVALID)p 1442 496 14 2 v 14 w(VALUE)f FC(is)120 |
| 552 y(generated.)191 609 y(The)15 b(command)234 706 y |
| Fw(void)30 b Fz(CallLists)p FC(\()h Fw(sizei)15 b Fv(n)p |
| Fw(,)g(enum)f Fv(typ)n(e)p Fw(,)h(void)g Fv(*lists)f |
| FC(\))h Fw(;)120 802 y FC(pro)o(vides)22 b(an)f(e\016cien)o(t)g(means)g |
| (for)f(executing)i(a)f(n)o(um)o(b)q(er)g(of)f(displa)o(y)i(lists.)38 |
| b Fv(n)20 b FC(is)120 859 y(an)g(in)o(teger)f(indicating)i(the)f(n)o |
| (um)o(b)q(er)f(of)g(displa)o(y)i(lists)f(to)e(b)q(e)i(called,)i(and)d |
| Fv(lists)f FC(is)120 915 y(a)h(p)q(oin)o(ter)g(that)f(p)q(oin)o(ts)i |
| (to)e(an)h(arra)o(y)e(of)i(o\013sets.)29 b(Eac)o(h)19 |
| b(o\013set)f(is)h(constructed)g(as)120 971 y(determined)d(b)o(y)e |
| Fv(lists)e FC(as)i(follo)o(ws.)20 b(First,)13 b Fv(typ)n(e)h |
| FC(ma)o(y)f(b)q(e)i(one)f(of)g(the)g(constan)o(ts)f Fr(BYTE)p |
| FC(,)120 1028 y Fr(UNSIGNED)p 299 1028 V 14 w(BYTE)p |
| FC(,)d Fr(SHORT)p FC(,)g Fr(UNSIGNED)p 733 1028 V 14 |
| w(SHORT)p FC(,)g Fr(INT)p FC(,)g Fr(UNSIGNED)p 1145 1028 |
| V 15 w(INT)p FC(,)g(or)h Fr(FLOAT)f FC(indicating)120 |
| 1084 y(that)i(the)g(arra)o(y)f(p)q(oin)o(ted)i(to)f(b)o(y)g |
| Fv(lists)f FC(is)h(an)g(arra)o(y)f(of)h(b)o(ytes,)g(unsigned)i(b)o |
| (ytes,)e(shorts,)120 1141 y(unsigned)19 b(shorts,)e(in)o(tegers,)g |
| (unsigned)i(in)o(tegers,)e(or)g(\015oats,)g(resp)q(ectiv)o(ely)l(.)27 |
| b(In)18 b(this)120 1197 y(case)k(eac)o(h)g(o\013set)f(is)h(found)h(b)o |
| (y)e(simply)j(con)o(v)o(erting)d(eac)o(h)h(arra)o(y)f(elemen)o(t)i(to)e |
| (an)120 1254 y(in)o(teger)e(\(\015oating)e(p)q(oin)o(t)i(v)m(alues)g |
| (are)f(truncated\).)28 b(F)l(urther,)18 b Fv(typ)n(e)g |
| FC(ma)o(y)f(b)q(e)i(one)f(of)120 1310 y Fr(2)p 145 1310 |
| V 16 w(BYTES)p FC(,)12 b Fr(3)p 318 1310 V 16 w(BYTES)p |
| FC(,)g(or)i Fr(4)p 546 1310 V 15 w(BYTES)p FC(,)f(indicating)i(that)f |
| (the)g(arra)o(y)e(con)o(tains)i(sequences)h(of)120 1367 |
| y(2,)k(3,)h(or)e(4)h(unsigned)h(b)o(ytes,)f(in)h(whic)o(h)f(case)g(eac) |
| o(h)g(in)o(teger)g(o\013set)f(is)i(constructed)120 1423 |
| y(according)c(to)f(the)g(follo)o(wing)h(algorithm:)120 |
| 1520 y Fy(of)5 b(f)g(set)14 b FB( )f FC(0)120 1577 y |
| Fz(for)i Fy(i)d FC(=)h(1)i Fz(to)h Fy(b)199 1633 y(of)5 |
| b(f)g(set)14 b FB( )f Fy(of)5 b(f)g(set)16 b FC(shifted)g(left)g(8)f |
| (bits)199 1690 y Fy(of)5 b(f)g(set)14 b FB( )f Fy(of)5 |
| b(f)g(set)11 b FC(+)g Fy(by)r(te)199 1746 y FC(adv)m(ance)16 |
| b(to)f(next)g Fv(byte)g FC(in)h(the)f(arra)o(y)120 1842 |
| y Fy(b)g FC(is)h(2,)e(3,)h(or)f(4,)h(as)g(indicated)i(b)o(y)e |
| Fv(typ)n(e)p FC(.)20 b(If)15 b Fy(n)e FC(=)g(0,)i Fz(CallLists)h |
| FC(do)q(es)g(nothing.)191 1900 y(Eac)o(h)c(of)g(the)h |
| Fv(n)e FC(constructed)i(o\013sets)e(is)i(tak)o(en)f(in)h(order)f(and)h |
| (added)g(to)f(a)g(displa)o(y)120 1956 y(list)20 b(base)e(to)g(obtain)h |
| (a)f(displa)o(y)h(list)h(n)o(um)o(b)q(er.)30 b(F)l(or)18 |
| b(eac)o(h)g(n)o(um)o(b)q(er,)h(the)g(indicated)120 2012 |
| y(displa)o(y)e(list)f(is)f(executed.)21 b(The)16 b(base)f(is)h(set)f(b) |
| o(y)g(calling)234 2109 y Fw(void)30 b Fz(ListBase)p FC(\()h |
| Fw(uint)14 b Fv(b)n(ase)h FC(\))g Fw(;)120 2205 y FC(to)g(sp)q(ecify)h |
| (the)g(o\013set.)191 2262 y(Indicating)j(a)e(displa)o(y)h(list)h(index) |
| f(that)f(do)q(es)g(not)g(corresp)q(ond)h(to)f(an)o(y)g(displa)o(y)120 |
| 2319 y(list)c(has)f(no)f(e\013ect.)19 b Fz(CallList)14 |
| b FC(or)d Fz(CallLists)i FC(ma)o(y)e(app)q(ear)h(inside)i(a)d(displa)o |
| (y)i(list.)20 b(\(If)120 2375 y(the)13 b Fv(mo)n(de)f |
| FC(supplied)i(to)e Fz(NewList)g FC(is)h Fr(COMPILE)p |
| 940 2375 V 14 w(AND)p 1020 2375 V 15 w(EXECUTE)p FC(,)d(then)j(the)f |
| (appropriate)120 2432 y(lists)19 b(are)f(executed,)h(but)f(the)g |
| Fz(CallList)i FC(or)e Fz(CallLists)p FC(,)h(rather)f(than)g(those)f |
| (lists')120 2488 y(constituen)o(t)h(commands,)g(is)g(placed)h(in)f(the) |
| g(list)g(under)h(construction.\))27 b(T)l(o)17 b(a)o(v)o(oid)p |
| eop |
| %%Page: 142 151 |
| 142 150 bop 332 137 a FC(142)622 b Fx(CHAPTER)15 b(5.)35 |
| b(SPECIAL)16 b(FUNCTIONS)332 286 y FC(the)k(p)q(ossibilit)o(y)i(of)d |
| (in\014nite)i(recursion)f(resulting)h(from)e(displa)o(y)i(lists)f |
| (calling)h(one)332 343 y(another,)d(an)f(implemen)o(tation)i(dep)q |
| (enden)o(t)g(limit)g(is)g(placed)f(on)g(the)g(nesting)g(lev)o(el)332 |
| 399 y(of)c(displa)o(y)i(lists)f(during)h(displa)o(y)f(list)h |
| (execution.)k(This)c(limit)g(m)o(ust)e(b)q(e)h(at)f(least)g(64.)403 |
| 456 y(Tw)o(o)g(commands)h(are)g(pro)o(vided)h(to)e(manage)h(displa)o(y) |
| h(list)g(indices.)446 550 y Fw(uint)29 b Fz(GenLists)p |
| FC(\()i Fw(sizei)15 b Fv(s)f FC(\))h Fw(;)332 644 y FC(returns)k(an)g |
| (in)o(teger)g Fy(n)g FC(suc)o(h)h(that)e(the)h(indices)i |
| Fy(n;)8 b(:)g(:)g(:)d(;)j(n)13 b FC(+)g Fy(s)g FB(\000)g |
| FC(1)18 b(are)h(previously)332 700 y(un)o(used)c(\(i.e.)k(there)14 |
| b(are)g Fy(s)g FC(previously)h(un)o(used)f(displa)o(y)h(list)g(indices) |
| h(starting)d(at)g Fy(n)p FC(\).)332 757 y Fz(GenLists)19 |
| b FC(also)f(has)g(the)h(e\013ect)f(of)g(creating)g(an)g(empt)o(y)g |
| (displa)o(y)i(list)f(for)e(eac)o(h)i(of)332 813 y(the)13 |
| b(indices)i Fy(n;)8 b(:)g(:)g(:)d(;)j(n)d FC(+)g Fy(s)g |
| FB(\000)g FC(1,)14 b(so)f(that)f(these)h(indices)i(all)f(b)q(ecome)f |
| (used.)20 b Fz(GenLists)332 870 y FC(returns)15 b(0)h(if)g(there)f(is)h |
| (no)f(group)h(of)f Fy(s)g FC(con)o(tiguous)h(previously)h(un)o(used)f |
| (displa)o(y)h(list)332 926 y(indices,)g(or)e(if)g Fy(s)e |
| FC(=)g(0.)446 1020 y Fw(boolean)29 b Fz(IsList)p FC(\()h |
| Fw(uint)15 b Fv(list)f FC(\))h Fw(;)332 1114 y FC(returns)g |
| Fr(TRUE)f FC(if)i Fv(list)f FC(is)g(the)h(index)g(of)f(some)g(displa)o |
| (y)h(list.)403 1171 y(A)f(con)o(tiguous)g(group)g(of)g(displa)o(y)h |
| (lists)g(ma)o(y)f(b)q(e)g(deleted)i(b)o(y)e(calling)446 |
| 1265 y Fw(void)29 b Fz(DeleteLists)p FC(\()j Fw(uint)14 |
| b Fv(list)p Fw(,)h(sizei)f Fv(r)n(ange)h FC(\))g Fw(;)332 |
| 1359 y FC(where)20 b Fv(list)g FC(is)g(the)g(index)i(of)d(the)h |
| (\014rst)g(displa)o(y)h(list)g(to)e(b)q(e)i(deleted)g(and)g |
| Fv(r)n(ange)e FC(is)332 1415 y(the)c(n)o(um)o(b)q(er)f(of)g(displa)o(y) |
| i(lists)f(to)e(b)q(e)j(deleted.)k(All)c(information)f(ab)q(out)f(the)g |
| (displa)o(y)332 1472 y(lists)h(is)g(lost,)f(and)h(the)f(indices)i(b)q |
| (ecome)f(un)o(used.)21 b(Indices)16 b(to)e(whic)o(h)h(no)f(displa)o(y)i |
| (list)332 1528 y(corresp)q(onds)g(are)e(ignored.)21 b(If)15 |
| b Fy(r)q(ang)r(e)e FC(=)g(0,)h(nothing)i(happ)q(ens.)403 |
| 1585 y(Certain)h(commands,)h(when)g(called)i(while)f(compiling)g(a)f |
| (displa)o(y)h(list,)f(are)g(not)332 1641 y(compiled)f(in)o(to)e(the)g |
| (displa)o(y)h(list)g(but)f(are)g(executed)h(immediately)l(.)22 |
| b(These)15 b(are:)20 b Fz(Is-)332 1698 y(List)p FC(,)c |
| Fz(GenLists)p FC(,)f Fz(DeleteLists)p FC(,)h Fz(F)l(eedbac)o(kBu\013er) |
| p FC(,)d Fz(SelectBu\013er)p FC(,)i Fz(Render-)332 1754 |
| y(Mo)q(de)p FC(,)d Fz(V)l(ertexP)o(oin)o(ter)p FC(,)d |
| Fz(NormalP)o(oin)o(ter)p FC(,)i Fz(ColorP)o(oin)o(ter)p |
| FC(,)g Fz(IndexP)o(oin)o(ter)p FC(,)332 1811 y Fz(T)l(exCo)q(ordP)o |
| (oin)o(ter)p FC(,)31 b Fz(EdgeFlagP)o(oin)o(ter)p FC(,)j |
| Fz(In)o(terlea)o(v)o(edArra)o(ys)o FC(,)c Fz(Enable-)332 |
| 1867 y(Clien)o(tState)p FC(,)25 b Fz(DisableClien)o(tState)p |
| FC(,)i Fz(PushClien)o(tA)o(ttrib)p FC(,)d Fz(P)o(opClien)o(tA)o(t-)332 |
| 1924 y(trib)p FC(,)f Fz(ReadPixels)p FC(,)f Fz(PixelStore)p |
| FC(,)h Fz(GenT)l(extures)p FC(,)e Fz(DeleteT)l(extures)p |
| FC(,)h Fz(Are-)332 1980 y(T)l(exturesResiden)o(t)p FC(,)j |
| Fz(IsT)l(exture)p FC(,)g Fz(Flush)p FC(,)g Fz(Finish)p |
| FC(,)i(as)c(w)o(ell)i(as)f Fz(IsEnabled)332 2036 y FC(and)g(all)i(of)d |
| (the)i Fz(Get)f FC(commands)g(\(see)g(Chapter)g(6\).)46 |
| b Fz(T)l(exImage2D)24 b FC(is)h(exe-)332 2093 y(cuted)16 |
| b(immediately)h(only)f(when)g(the)f Fv(tar)n(get)g FC(argumen)o(t)g(is) |
| h Fr(PROXY)p 1502 2093 14 2 v 15 w(TEXTURE)p 1671 2093 |
| V 14 w(2D)p FC(,)e(and)332 2149 y Fz(T)l(exImage1D)j |
| FC(is)g(executed)h(immediatedly)g(only)g(when)f(the)g |
| Fv(tar)n(get)g FC(argumen)o(t)f(is)332 2206 y Fr(PROXY)p |
| 445 2206 V 15 w(TEXTURE)p 614 2206 V 14 w(1D)p FC(.)403 |
| 2262 y(Displa)o(y)e(lists)h(require)g(one)f(bit)g(of)g(state)f(to)g |
| (indicate)j(whether)e(a)g(GL)g(command)332 2319 y(should)20 |
| b(b)q(e)g(executed)g(immediately)h(or)d(placed)i(in)g(a)f(displa)o(y)h |
| (list.)32 b(In)20 b(the)f(initial)332 2375 y(state,)24 |
| b(commands)e(are)h(executed)g(immediately)l(.)45 b(If)23 |
| b(the)g(bit)g(indicates)h(displa)o(y)332 2432 y(list)18 |
| b(creation,)f(an)g(index)h(is)f(required)h(to)e(indicate)j(the)e |
| (curren)o(t)g(displa)o(y)g(list)h(b)q(eing)332 2488 y(de\014ned.)24 |
| b(Another)16 b(bit)h(indicates,)g(during)g(displa)o(y)h(list)f |
| (creation,)f(whether)g(or)g(not)p eop |
| %%Page: 143 152 |
| 143 151 bop 120 137 a Fx(5.5.)34 b Fz(FLUSH)16 b Fx(AND)f |
| Fz(FINISH)829 b FC(143)120 286 y(commands)20 b(should)h(b)q(e)f |
| (executed)h(as)f(they)g(are)f(compiled)j(in)o(to)d(the)h(displa)o(y)h |
| (list.)120 343 y(One)g(in)o(teger)e(is)h(required)h(for)e(the)h(curren) |
| o(t)f Fz(ListBase)i FC(setting;)g(its)f(initial)i(v)m(alue)120 |
| 399 y(is)f(zero.)34 b(Finally)l(,)22 b(state)d(m)o(ust)h(b)q(e)g(main)o |
| (tained)h(to)f(indicate)h(whic)o(h)g(in)o(tegers)f(are)120 |
| 456 y(curren)o(tly)c(in)g(use)f(as)g(displa)o(y)h(list)g(indices.)22 |
| b(In)16 b(the)f(initial)i(state,)d(no)h(indices)i(are)e(in)120 |
| 512 y(use.)120 654 y Fs(5.5)67 b(Flush)23 b(and)g(Finish)120 |
| 756 y FC(The)16 b(command)234 842 y Fw(void)30 b Fz(Flush)p |
| FC(\()g Fw(void)38 b FC(\))15 b Fw(;)120 929 y FC(indicates)h(that)d |
| (all)i(commands)e(that)h(ha)o(v)o(e)f(previously)i(b)q(een)g(sen)o(t)f |
| (to)f(the)h(GL)g(m)o(ust)120 986 y(complete)i(in)g(\014nite)g(time.)191 |
| 1042 y(The)f(command)234 1129 y Fw(void)30 b Fz(Finish)p |
| FC(\()g Fw(void)39 b FC(\))15 b Fw(;)120 1216 y FC(forces)f(all)g |
| (previous)g(GL)g(commands)f(to)g(complete.)20 b Fz(Finish)14 |
| b FC(do)q(es)g(not)f(return)h(un)o(til)120 1272 y(all)19 |
| b(e\013ects)e(from)g(previously)i(issued)g(commands)f(on)g(GL)f(clien)o |
| (t)i(and)f(serv)o(er)g(state)120 1329 y(and)e(the)f(framebu\013er)g |
| (are)g(fully)h(realized.)120 1470 y Fs(5.6)67 b(Hin)n(ts)120 |
| 1572 y FC(Certain)18 b(asp)q(ects)f(of)g(GL)g(b)q(eha)o(vior,)h(when)g |
| (there)f(is)h(ro)q(om)f(for)f(v)m(ariation,)i(ma)o(y)f(b)q(e)120 |
| 1628 y(con)o(trolled)f(with)g(hin)o(ts.)k(A)15 b(hin)o(t)h(is)g(sp)q |
| (eci\014ed)h(using)234 1715 y Fw(void)30 b Fz(Hin)o(t)p |
| FC(\()g Fw(enum)15 b Fv(tar)n(get)p Fw(,)g(enum)f Fv(hint)h |
| FC(\))g Fw(;)120 1802 y Fv(tar)n(get)j FC(is)f(a)g(sym)o(b)q(olic)h |
| (constan)o(t)e(indicating)j(the)f(b)q(eha)o(vior)f(to)g(b)q(e)h(con)o |
| (trolled,)g(and)120 1858 y Fv(hint)23 b FC(is)g(a)g(sym)o(b)q(olic)h |
| (constan)o(t)d(indicating)k(what)d(t)o(yp)q(e)h(of)f(b)q(eha)o(vior)i |
| (is)f(desired.)120 1915 y Fv(tar)n(get)d FC(ma)o(y)g(b)q(e)g(one)g(of)g |
| Fr(PERSPECTIVE)p 812 1915 14 2 v 13 w(CORRECTION)p 1045 |
| 1915 V 14 w(HINT)p FC(,)f(indicating)i(the)g(desired)120 |
| 1971 y(qualit)o(y)12 b(of)f(parameter)g(in)o(terp)q(olation;)i |
| Fr(POINT)p 924 1971 V 15 w(SMOOTH)p 1071 1971 V 14 w(HINT)p |
| FC(,)d(indicating)j(the)f(desired)120 2028 y(sampling)g(qualit)o(y)f |
| (of)e(p)q(oin)o(ts;)j Fr(LINE)p 739 2028 V 15 w(SMOOTH)p |
| 886 2028 V 15 w(HINT)p FC(,)d(indicating)j(the)e(desired)i(sampling)120 |
| 2084 y(qualit)o(y)g(of)f(lines;)j Fr(POLYGON)p 588 2084 |
| V 14 w(SMOOTH)p 734 2084 V 14 w(HINT)p FC(,)c(indicating)j(the)f |
| (desired)g(sampling)g(qualit)o(y)120 2141 y(of)j(p)q(olygons;)g(and)g |
| Fr(FOG)p 531 2141 V 15 w(HINT)p FC(,)f(indicating)j(whether)e(fog)g |
| (calculations)h(are)f(done)g(p)q(er)120 2197 y(pixel)k(or)d(p)q(er)i(v) |
| o(ertex.)24 b Fv(hint)17 b FC(m)o(ust)f(b)q(e)i(one)f(of)f |
| Fr(FASTEST)p FC(,)g(indicating)i(that)f(the)g(most)120 |
| 2254 y(e\016cien)o(t)d(option)f(should)h(b)q(e)g(c)o(hosen;)g |
| Fr(NICEST)p FC(,)d(indicating)k(that)d(the)i(highest)f(qualit)o(y)120 |
| 2310 y(option)23 b(should)g(b)q(e)g(c)o(hosen;)j(and)d |
| Fr(DONT)p 845 2310 V 15 w(CARE)p FC(,)e(indicating)j(no)e(preference)h |
| (in)h(the)120 2366 y(matter.)191 2423 y(The)14 b(in)o(terpretation)f |
| (of)g(hin)o(ts)h(is)g(implemen)o(tation)h(dep)q(enden)o(t.)21 |
| b(An)14 b(implemen-)120 2479 y(tation)h(ma)o(y)g(ignore)g(them)g(en)o |
| (tirely)l(.)p eop |
| %%Page: 144 153 |
| 144 152 bop 332 598 a Ft(Chapter)31 b(6)332 807 y FA(State)39 |
| b(and)g(State)g(Requests)332 1030 y FC(The)17 b(v)m(alues)i(of)d(most)h |
| (GL)g(state)f(v)m(ariables)i(can)g(b)q(e)f(obtained)h(using)g(a)f(set)f |
| (of)h Fz(Get)332 1086 y FC(commands.)j(There)15 b(are)g(four)g |
| (commands)g(for)f(obtaining)j(simple)f(state)f(v)m(ariables:)446 |
| 1182 y Fw(void)29 b Fz(GetBo)q(olean)o(v)p FC(\()j Fw(enum)14 |
| b Fv(value)p Fw(,)h(boolean)g Fv(*data)h FC(\))f Fw(;)446 |
| 1239 y(void)29 b Fz(GetIn)o(tegerv)p FC(\()h Fw(enum)14 |
| b Fv(value)p Fw(,)h(int)g Fv(*data)h FC(\))f Fw(;)446 |
| 1295 y(void)29 b Fz(GetFloatv)p FC(\()j Fw(enum)14 b |
| Fv(value)p Fw(,)h(float)g Fv(*data)h FC(\))f Fw(;)446 |
| 1352 y(void)29 b Fz(GetDoublev)p FC(\()i Fw(enum)15 b |
| Fv(value)p Fw(,)g(double)f Fv(*data)i FC(\))f Fw(;)332 |
| 1448 y FC(The)j(commands)f(obtain)h(b)q(o)q(olean,)g(in)o(teger,)g |
| (\015oating-p)q(oin)o(t,)g(or)f(double-precisi)q(on)332 |
| 1505 y(state)d(v)m(ariables.)21 b Fv(value)14 b FC(is)h(a)f(sym)o(b)q |
| (olic)i(constan)o(t)e(indicating)i(the)f(state)e(v)m(ariable)j(to)332 |
| 1561 y(return,)f Fv(data)g FC(is)h(a)e(p)q(oin)o(ter)i(to)e(an)h(arra)o |
| (y)f(of)g(the)h(indicated)i(t)o(yp)q(e)e(in)g(whic)o(h)h(to)e(place)332 |
| 1617 y(the)h(returned)h(data.)j(In)d(addition)446 1714 |
| y Fw(boolean)29 b Fz(IsEnabled)p FC(\()i Fw(enum)14 b |
| Fv(value)i FC(\))e Fw(;)332 1810 y FC(can)i(b)q(e)g(used)g(to)f |
| (determine)i(if)f Fv(value)g FC(is)g(curren)o(tly)g(enabled)h(\(as)e |
| (with)h Fz(Enable)p FC(\))h(or)332 1867 y(disabled.)403 |
| 1924 y(If)f(a)g Fz(Get)g FC(command)g(is)g(issued)h(that)f(returns)g(v) |
| m(alue)h(t)o(yp)q(es)f(di\013eren)o(t)g(from)f(the)332 |
| 1980 y(t)o(yp)q(e)j(of)f(the)g(v)m(alue)i(b)q(eing)g(obtained,)f(a)f(t) |
| o(yp)q(e)h(con)o(v)o(ersion)f(is)h(p)q(erformed.)27 b(If)18 |
| b Fz(Get-)332 2037 y(Bo)q(olean)o(v)j FC(is)f(called,)j(a)c |
| (\015oating-p)q(oin)o(t)i(or)e(in)o(teger)h(v)m(alue)i(con)o(v)o(erts)d |
| (to)g Fr(FALSE)g FC(if)332 2093 y(and)g(only)h(if)f(it)h(is)f(zero)g |
| (\(otherwise)g(it)h(con)o(v)o(erts)e(to)g Fr(TRUE)p FC(\).)g(If)h |
| Fz(GetIn)o(tegerv)f FC(\(or)332 2149 y(an)o(y)f(of)h(the)f |
| Fz(Get)h FC(commands)g(b)q(elo)o(w\))g(is)g(called,)i(a)d(b)q(o)q |
| (olean)i(v)m(alue)g(is)f(in)o(terpreted)332 2206 y(as)13 |
| b(either)i(1)e(or)g(0,)g(and)h(a)f(\015oating-p)q(oin)o(t)h(v)m(alue)h |
| (is)f(rounded)h(to)e(the)g(nearest)h(in)o(teger,)332 |
| 2262 y(unless)k(the)f(v)m(alue)h(is)f(a)g(an)g(R)o(GBA)f(color)h(comp)q |
| (onen)o(t,)g(a)g Fz(DepthRange)h FC(v)m(alue,)g(a)332 |
| 2319 y(depth)h(bu\013er)f(clear)h(v)m(alue,)h(or)d(a)h(normal)h(co)q |
| (ordinate.)29 b(In)19 b(these)f(cases,)h(the)f Fz(Get)332 |
| 2375 y FC(command)e(con)o(v)o(erts)f(the)h(\015oating-p)q(oin)o(t)g(v)m |
| (alue)h(to)f(an)g(in)o(teger)g(according)g(the)g Fw(INT)332 |
| 2432 y FC(en)o(try)k(of)f(T)l(able)i(4.7;)g(a)e(v)m(alue)i(not)f(in)h |
| ([)p FB(\000)p FC(1)p Fy(;)8 b FC(1])18 b(con)o(v)o(erts)h(to)g(an)h |
| (unde\014ned)i(v)m(alue.)332 2488 y(If)c Fz(GetFloatv)g |
| FC(is)g(called,)g(a)f(b)q(o)q(olean)h(v)m(alue)h(is)e(in)o(terpreted)h |
| (as)f(either)h(1)p Fy(:)p FC(0)e(or)h(0)p Fy(:)p FC(0,)1045 |
| 2613 y(144)p eop |
| %%Page: 145 154 |
| 145 153 bop 1547 137 a FC(145)120 286 y(an)14 b(in)o(teger)h(is)g(co)q |
| (erced)g(to)e(\015oating-p)q(oin)o(t,)i(and)f(a)g(double-precision)j |
| (\015oating-p)q(oin)o(t)120 343 y(v)m(alue)23 b(is)f(con)o(v)o(erted)f |
| (to)g(single-precision.)42 b(Analogous)21 b(con)o(v)o(ersions)h(are)f |
| (carried)120 399 y(out)d(in)i(the)e(case)g(of)g Fz(GetDoublev)p |
| FC(.)31 b(If)18 b(a)g(v)m(alue)i(is)f(so)f(large)g(in)i(magnitude)e |
| (that)120 456 y(it)j(cannot)f(b)q(e)g(represen)o(ted)h(with)f(the)h |
| (requested)f(t)o(yp)q(e,)h(then)f(the)h(nearest)f(v)m(alue)120 |
| 512 y(represen)o(table)c(using)g(the)g(requested)f(t)o(yp)q(e)h(is)f |
| (returned.)191 572 y(Other)k(commands)f(exist)g(to)g(obtain)h(state)e |
| (v)m(ariables)j(that)e(are)g(indexed)i(b)o(y)e(a)120 |
| 628 y(target.)h(These)d(are)234 735 y Fw(void)30 b Fz(GetClipPlane)p |
| FC(\()i Fw(enum)14 b Fv(plane)p Fw(,)h(double)f Fv(e)n(qn[4])g |
| FC(\))h Fw(;)234 791 y(void)30 b Fz(GetLigh)o(t)p FB(f)p |
| Fz(if)p FB(g)p Fz(v)p FC(\()h Fw(enum)14 b Fv(light)p |
| Fw(,)h(enum)g Fv(value)p Fw(,)g(T)g Fv(data)h FC(\))f |
| Fw(;)234 848 y(void)30 b Fz(GetMaterial)p FB(f)p Fz(if)p |
| FB(g)p Fz(v)p FC(\()h Fw(enum)15 b Fv(fac)n(e)p Fw(,)f(enum)h |
| Fv(value)p Fw(,)g(T)g Fv(data)h FC(\))f Fw(;)234 904 |
| y(void)30 b Fz(GetT)l(exEn)o(v)p FB(f)p Fz(if)p FB(g)p |
| Fz(v)p FC(\()f Fw(enum)14 b Fv(env)p Fw(,)h(enum)f Fv(value)p |
| Fw(,)h(T)g Fv(data)h FC(\))f Fw(;)234 961 y(void)30 b |
| Fz(GetT)l(exGen)p FB(f)p Fz(if)p FB(g)p Fz(v)p FC(\()f |
| Fw(enum)15 b Fv(c)n(o)n(or)n(d)p Fw(,)g(enum)f Fv(value)p |
| Fw(,)h(T)g Fv(data)h FC(\))f Fw(;)234 1017 y(void)53 |
| b Fz(GetT)l(exP)o(arameter)p FB(f)p Fz(if)p FB(g)p Fz(v)p |
| FC(\()e Fw(enum)27 b Fv(tar)n(get)p Fw(,)i(enum)d Fv(value)p |
| Fw(,)302 1074 y(T)15 b Fv(data)h FC(\))f Fw(;)234 1130 |
| y(void)39 b Fz(GetT)l(exLev)o(elP)o(arameter)p FB(f)p |
| Fz(if)p FB(g)p Fz(v)p FC(\()e Fw(enum)19 b Fv(tar)n(get)p |
| Fw(,)i(int)f Fv(lo)n(d)p Fw(,)302 1187 y(enum)15 b Fv(value)p |
| Fw(,)g(T)g Fv(data)h FC(\))f Fw(;)234 1243 y(void)30 |
| b Fz(GetPixelMap)p FB(f)p Fz(ui)18 b(us)f(f)p FB(g)p |
| Fz(v)p FC(\()30 b Fw(enum)14 b Fv(map)p Fw(,)i(T)f Fv(data)h |
| FC(\))f Fw(;)234 1299 y(void)30 b Fz(GetMap)p FB(f)p |
| Fz(ifd)p FB(g)p Fz(v)p FC(\()g Fw(enum)14 b Fv(map)p |
| Fw(,)i(enum)f Fv(value)p Fw(,)g(T)g Fv(data)h FC(\))f |
| Fw(;)120 1406 y Fz(GetClipPlane)24 b FC(alw)o(a)o(ys)c(returns)i(four)f |
| (double-precision)j(v)m(alues)f(in)f Fv(e)n(qn)p FC(;)i(these)120 |
| 1462 y(are)16 b(the)g(co)q(e\016cien)o(ts)h(of)f(the)g(plane)h |
| (equation)f(of)g Fv(plane)f FC(in)i(ey)o(e)f(co)q(ordinates)h(\(these) |
| 120 1519 y(co)q(ordinates)f(are)f(those)g(that)f(w)o(ere)h(computed)h |
| (when)f(the)h(plane)g(w)o(as)e(sp)q(eci\014ed\).)191 |
| 1579 y Fz(GetLigh)o(t)g FC(places)g(information)e(ab)q(out)h |
| Fv(value)g FC(\(a)f(sym)o(b)q(olic)h(constan)o(t\))f(for)g |
| Fv(light)120 1635 y FC(\(also)j(a)g(sym)o(b)q(olic)h(constan)o(t\))e |
| (in)i Fv(data)p FC(.)21 b Fr(POSITION)13 b FC(or)i Fr(SPOT)p |
| 1163 1635 14 2 v 15 w(DIRECTION)e FC(returns)i(v)m(al-)120 |
| 1691 y(ues)f(in)h(ey)o(e)e(co)q(ordinates)h(\(again,)f(these)h(are)f |
| (the)h(co)q(ordinates)f(that)g(w)o(ere)g(computed)120 |
| 1748 y(when)j(the)f(p)q(osition)i(or)d(direction)j(w)o(as)d(sp)q |
| (eci\014ed\).)191 1808 y Fz(GetMaterial)p FC(,)27 b Fz(GetT)l(exGen)p |
| FC(,)f Fz(GetT)l(exEn)o(v)p FC(,)f(and)f Fz(GetT)l(exP)o(arameter)120 |
| 1864 y FC(are)11 b(similar)i(to)e Fz(GetLigh)o(t)p FC(,)i(placing)f |
| (information)g(ab)q(out)f Fv(value)h FC(for)e(the)i(target)e(indi-)120 |
| 1920 y(cated)j(b)o(y)f(their)h(\014rst)e(argumen)o(t)h(in)o(to)g |
| Fv(data)p FC(.)20 b(The)12 b Fv(fac)n(e)g FC(argumen)o(t)g(to)f |
| Fz(GetMaterial)120 1977 y FC(m)o(ust)k(b)q(e)h(either)g |
| Fr(FRONT)f FC(or)g Fr(BACK)p FC(,)f(indicating)j(the)f(fron)o(t)e(or)h |
| (bac)o(k)g(material,)h(resp)q(ec-)120 2033 y(tiv)o(ely)l(.)30 |
| b(The)18 b Fv(env)g FC(argumen)o(t)f(to)g Fz(GetT)l(exEn)o(v)h |
| FC(m)o(ust)f(curren)o(tly)i(b)q(e)g Fr(TEXTURE)p 1526 |
| 2033 V 14 w(ENV)p FC(.)120 2090 y(The)d Fv(c)n(o)n(or)n(d)e |
| FC(argumen)o(t)h(to)f Fz(GetT)l(exGen)h FC(m)o(ust)g(b)q(e)g(one)h(of)e |
| Fr(S)p FC(,)h Fr(T)p FC(,)f Fr(R)p FC(,)h(or)f Fr(Q)p |
| FC(.)h(F)l(or)f Fz(Get-)120 2146 y(T)l(exGen)p FC(,)20 |
| b Fr(EYE)p 400 2146 V 15 w(LINEAR)e FC(co)q(e\016cien)o(ts)i(are)f |
| (returned)g(in)h(the)g(ey)o(e)f(co)q(ordinates)g(that)120 |
| 2203 y(w)o(ere)c(computed)g(when)g(the)g(plane)g(w)o(as)f(sp)q |
| (eci\014ed;)j Fr(OBJECT)p 1168 2203 V 14 w(LINEAR)d FC(co)q(e\016cien)o |
| (ts)h(are)120 2259 y(returned)h(in)g(ob)s(ject)f(co)q(ordinates.)191 |
| 2319 y(F)l(or)24 b Fz(GetT)l(exP)o(arameter)f FC(and)i |
| Fz(GetT)l(exLev)o(elP)o(arameter)p FC(,)g Fv(tar)n(get)f |
| FC(m)o(ust)120 2375 y(curren)o(tly)29 b(b)q(e)g Fr(TEXTURE)p |
| 560 2375 V 15 w(1D)e FC(or)h Fr(TEXTURE)p 869 2375 V |
| 15 w(2D)p FC(,)f(indicating)j(the)f(curren)o(tly)g(b)q(ound)120 |
| 2432 y(one-dimensional)g(or)d(t)o(w)o(o-dimensional)h(texture)f(ob)s |
| (ject,)i(or)d Fr(PROXY)p 1391 2432 V 15 w(TEXTURE)p 1560 |
| 2432 V 14 w(1D)120 2488 y FC(or)i Fr(PROXY)p 301 2488 |
| V 15 w(TEXTURE)p 470 2488 V 14 w(2D)p FC(,)g(indicating)i(the)f |
| (one-dimensional)i(or)d(t)o(w)o(o-dimensional)p eop |
| %%Page: 146 155 |
| 146 154 bop 332 137 a FC(146)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)332 286 |
| y FC(pro)o(xy)29 b(state)h(v)o(ector.)63 b Fv(value)30 |
| b FC(is)g(a)g(sym)o(b)q(olic)h(v)m(alue)g(indicating)h(whic)o(h)e(tex-) |
| 332 343 y(ture)39 b(parameter)f(is)i(to)f(b)q(e)g(obtained.)93 |
| b(The)39 b Fv(lo)n(d)g FC(argumen)o(t)f(to)h Fz(Get-)332 |
| 399 y(T)l(exLev)o(elP)o(arameter)18 b FC(determines)i(whic)o(h)g(lev)o |
| (el-of-detail's)h(state)e(is)g(returned.)332 456 y(If)35 |
| b(the)h Fv(lo)n(d)e FC(argumen)o(t)h(is)g(less)h(than)f(zero)g(or)f(if) |
| i(it)f(is)h(larger)e(than)h(the)332 512 y(maxim)o(um)j(allo)o(w)o(able) |
| h(lev)o(el-of-detail)h(then)e(the)g(error)f Fr(INVALID)p |
| 1609 512 14 2 v 14 w(VALUE)g FC(o)q(c-)332 569 y(curs.)29 |
| b(Queries)20 b(of)d Fr(TEXTURE)p 834 569 V 15 w(RED)p |
| 915 569 V 15 w(SIZE)p FC(,)g Fr(TEXTURE)p 1202 569 V |
| 14 w(GREEN)p 1326 569 V 15 w(SIZE)p FC(,)g Fr(TEXTURE)p |
| 1613 569 V 14 w(BLUE)p 1715 569 V 15 w(SIZE)p FC(,)332 |
| 625 y Fr(TEXTURE)p 489 625 V 14 w(ALPHA)p 613 625 V 15 |
| w(SIZE)p FC(,)26 b Fr(TEXTURE)p 909 625 V 14 w(LUMINANCE)p |
| 1121 625 V 14 w(SIZE)p FC(,)g(and)h Fr(TEXTURE)p 1516 |
| 625 V 14 w(INTENSITY)p 1728 625 V 14 w(SIZE)332 682 y |
| FC(return)22 b(the)g(actual)g(resolutions)g(of)f(the)h(stored)f(image)h |
| (arra)o(y)f(comp)q(onen)o(ts,)i(not)332 738 y(the)g(resolutions)h(sp)q |
| (eci\014ed)h(when)f(the)f(image)g(arra)o(y)f(w)o(as)g(de\014ned.)45 |
| b(Queries)25 b(of)332 795 y Fr(TEXTURE)p 489 795 V 14 |
| w(WIDTH)p FC(,)9 b Fr(TEXTURE)p 789 795 V 14 w(HEIGHT)p |
| FC(,)g(and)h Fr(TEXTURE)p 1194 795 V 15 w(BORDER)e FC(return)j(the)f |
| (width,)h(heigh)o(t,)332 851 y(and)24 b(b)q(order)g(as)f(sp)q |
| (eci\014ed)j(when)e(the)f(image)h(arra)o(y)e(w)o(as)h(created.)45 |
| b(The)24 b(in)o(ter-)332 907 y(nal)f(format)e(of)h(the)g(image)h(arra)o |
| (y)e(is)i(queried)g(as)f Fr(TEXTURE)p 1419 907 V 14 w(INTERNAL)p |
| 1609 907 V 14 w(FORMAT)p FC(,)f(or)332 964 y(as)15 b |
| Fr(TEXTURE)p 545 964 V 14 w(COMPONENTS)e FC(for)i(compatibilit)o(y)i |
| (with)e(GL)g(v)o(ersion)h(1.0.)403 1024 y(F)l(or)f Fz(GetPixelMap)p |
| FC(,)h(the)g Fv(map)g FC(m)o(ust)f(b)q(e)i(a)e(map)g(name)h(from)f(T)l |
| (able)i(3.3.)j(F)l(or)332 1081 y Fz(GetMap)p FC(,)c Fv(map)g |
| FC(m)o(ust)f(b)q(e)h(one)g(of)f(the)g(map)h(t)o(yp)q(es)f(describ)q(ed) |
| j(in)e(section)g(5.1,)e(and)332 1137 y Fv(value)h FC(m)o(ust)g(b)q(e)h |
| (one)f(of)g Fr(ORDER)p FC(,)f Fr(COEFF)p FC(,)f(or)i |
| Fr(DOMAIN)p FC(.)403 1197 y Fz(GetT)l(exImage)g FC(is)g(used)h(to)f |
| (obtain)g(texture)g(images.)446 1306 y Fw(void)57 b Fz(GetT)l(exImage)p |
| FC(\()g Fw(enum)29 b Fv(tex)p Fw(,)j(int)d Fv(lo)n(d)p |
| Fw(,)j(enum)c Fv(format)p Fw(,)514 1363 y(enum)15 b Fv(typ)n(e)p |
| Fw(,)g(void)f Fv(*img)i FC(\))e Fw(;)332 1472 y FC(It)20 |
| b(is)h(somewhat)e(di\013eren)o(t)h(from)g(the)g(other)f(get)h |
| (commands;)i Fv(tex)e FC(is)h(a)e(sym)o(b)q(olic)332 |
| 1528 y(v)m(alue)j(indicating)h(whic)o(h)f(texture)f(is)g(to)g(b)q(e)g |
| (obtained.)38 b Fr(TEXTURE)p 1532 1528 V 15 w(1D)20 b |
| FC(indicates)j(a)332 1585 y(one-dimensional)18 b(texture,)d(while)j |
| Fr(TEXTURE)p 1114 1585 V 14 w(2D)d FC(indicates)i(a)f(t)o(w)o |
| (o-dimensional)g(tex-)332 1641 y(ture.)j Fv(lo)n(d)13 |
| b FC(is)h(a)e(lev)o(el-of-detail)k(n)o(um)o(b)q(er,)d |
| Fv(format)h FC(is)g(a)f(pixel)i(format)c(from)i(T)l(able)h(3.5,)332 |
| 1698 y Fv(typ)n(e)d FC(is)h(a)f(pixel)i(t)o(yp)q(e)f(from)f(T)l(able)h |
| (3.4,)f(and)g Fv(img)g FC(is)h(a)f(p)q(oin)o(ter)h(to)f(a)g(blo)q(c)o |
| (k)h(of)f(memory)l(.)332 1754 y Fz(GetT)l(exImage)19 |
| b FC(obtains)f(comp)q(onen)o(t)h(groups)g(from)f(a)g(texture)g(image)h |
| (with)g(the)332 1811 y(indicated)d(lev)o(el-of-detail.)23 |
| b(The)14 b(comp)q(onen)o(ts)h(are)f(assigned)i(among)d(R,)i(G,)f(B,)g |
| (and)332 1867 y(A)h(according)h(to)f(T)l(able)h(6.1,)e(starting)h(with) |
| g(the)h(\014rst)f(group)g(in)h(the)f(\014rst)g(ro)o(w,)f(and)332 |
| 1924 y(con)o(tin)o(uing)h(b)o(y)e(obtaining)i(groups)e(in)h(order)f |
| (from)g(eac)o(h)h(ro)o(w)e(and)i(pro)q(ceeding)h(from)332 |
| 1980 y(the)g(\014rst)g(ro)o(w)f(to)h(the)g(last.)20 b(These)15 |
| b(groups)g(are)g(then)g(pac)o(k)o(ed)h(and)f(placed)h(in)g(clien)o(t) |
| 332 2037 y(memory)h(as)g(describ)q(ed)j(in)e(section)g(4.3.2)e(under)i |
| Fz(ReadPixels)p FC(.)27 b(The)18 b(ro)o(w)f(length)332 |
| 2093 y(and)e(n)o(um)o(b)q(er)h(of)f(ro)o(ws)f(is)h(determined)i(b)o(y)e |
| (the)g(size)h(of)f(the)g(texture)g(image)g(\(includ-)332 |
| 2149 y(ing)j(an)o(y)e(b)q(orders\).)26 b(Calling)18 b |
| Fz(GetT)l(exImage)f FC(with)h Fv(lo)n(d)e FC(less)i(than)f(zero)g(or)g |
| (larger)332 2206 y(than)f(the)g(maxim)o(um)g(allo)o(w)o(able)h(causes)f |
| (the)g(error)f Fr(INVALID)p 1417 2206 V 15 w(VALUE)p |
| FC(.)f(Calling)k Fz(Get-)332 2262 y(T)l(exImage)e FC(with)i |
| Fv(format)f FC(of)g Fr(COLOR)p 992 2262 V 14 w(INDEX)p |
| FC(,)f Fr(STENCIL)p 1299 2262 V 14 w(INDEX)p FC(,)f(or)i |
| Fr(DEPTH)p 1619 2262 V 14 w(COMPONENT)332 2319 y FC(causes)e(the)h |
| (error)e Fr(INVALID)p 818 2319 V 14 w(ENUM)p FC(.)403 |
| 2379 y(The)h(command)446 2488 y Fw(boolean)29 b Fz(IsT)l(exture)p |
| FC(\()g Fw(uint)15 b Fv(textur)n(e)g FC(\))g Fw(;)p eop |
| %%Page: 147 156 |
| 147 155 bop 1547 137 a FC(147)p 420 242 896 2 v 419 299 |
| 2 57 v 457 282 a(Base)15 b(In)o(ternal)h(F)l(ormat)p |
| 917 299 V 68 w(R)p 1017 299 V 66 w(G)p 1117 299 V 65 |
| w(B)p 1216 299 V 66 w(A)p 1315 299 V 420 301 896 2 v |
| 420 309 V 419 365 2 57 v 614 348 a Fr(ALPHA)p 917 365 |
| V 232 w FC(0)p 1017 365 V 77 w(0)p 1117 365 V 77 w(0)p |
| 1216 365 V 63 w Fy(A)1276 355 y Fu(t)p 1315 365 V 420 |
| 367 896 2 v 419 423 2 57 v 507 406 a Fr(LUMINANCE)d FC(\(or)h |
| Fr(1)p FC(\))p 917 423 V 114 w Fy(L)976 413 y Fu(t)p |
| 1017 423 V 1056 406 a FC(0)p 1117 423 V 77 w(0)p 1216 |
| 423 V 76 w(1)p 1315 423 V 420 425 896 2 v 419 482 2 57 |
| v 445 465 a Fr(LUMINANCE)p 646 465 14 2 v 13 w(ALPHA)g |
| FC(\(or)h Fr(2)p FC(\))p 917 482 2 57 v 51 w Fy(L)976 |
| 472 y Fu(t)p 1017 482 V 1056 465 a FC(0)p 1117 482 V |
| 77 w(0)p 1216 482 V 63 w Fy(A)1276 472 y Fu(t)p 1315 |
| 482 V 420 483 896 2 v 419 540 2 57 v 571 523 a Fr(INTENSITY)p |
| 917 540 V 181 w Fy(I)970 530 y Fu(t)p 1017 540 V 1056 |
| 523 a FC(0)p 1117 540 V 77 w(0)p 1216 540 V 76 w(1)p |
| 1315 540 V 420 541 896 2 v 419 598 2 57 v 572 581 a Fr(RGB)g |
| FC(\(or)f Fr(3)p FC(\))p 917 598 V 177 w Fy(R)978 588 |
| y Fu(t)p 1017 598 V 1042 581 a Fy(G)1078 588 y Fu(t)p |
| 1117 598 V 1143 581 a Fy(B)1177 588 y Fu(t)p 1216 598 |
| V 1255 581 a FC(1)p 1315 598 V 420 599 896 2 v 419 656 |
| 2 57 v 561 639 a Fr(RGBA)h FC(\(or)f Fr(4)p FC(\))p 917 |
| 656 V 166 w Fy(R)978 646 y Fu(t)p 1017 656 V 1042 639 |
| a Fy(G)1078 646 y Fu(t)p 1117 656 V 1143 639 a Fy(B)1177 |
| 646 y Fu(t)p 1216 656 V 1242 639 a Fy(A)1276 646 y Fu(t)p |
| 1315 656 V 420 658 896 2 v 120 785 a FC(T)l(able)21 b(6.1:)28 |
| b(T)l(exture)20 b(return)f(v)m(alues.)35 b Fy(R)869 792 |
| y Fu(t)883 785 y FC(,)20 b Fy(G)952 792 y Fu(t)967 785 |
| y FC(,)g Fy(B)1034 792 y Fu(t)1050 785 y FC(,)g Fy(A)1117 |
| 792 y Fu(t)1132 785 y FC(,)g Fy(L)1196 792 y Fu(t)1211 |
| 785 y FC(,)g(and)g Fy(I)1357 792 y Fu(t)1392 785 y FC(are)f(texture)120 |
| 841 y(arra)o(y)14 b(v)m(alues)j(that)d(are)h(assigned)h(to)e(pixel)j(v) |
| m(alues)g(R,)e(G,)f(B,)h(and)h(A.)120 977 y(returns)d |
| Fr(TRUE)f FC(if)h Fv(textur)n(e)f FC(is)h(the)g(name)g(of)f(a)g |
| (texture)g(ob)s(ject.)19 b(If)13 b Fv(textur)n(e)f FC(is)i(zero,)e(or)g |
| (is)120 1033 y(a)f(non-zero)h(v)m(alue)h(that)d(is)i(not)f(the)g(name)h |
| (of)f(a)g(texture)g(ob)s(ject,)g(or)g(if)h(an)f(error)g(condi-)120 |
| 1090 y(tion)k(o)q(ccurs,)g Fz(IsT)l(exture)f FC(returns)g |
| Fr(FALSE)p FC(.)g(A)g(name)h(returned)g(b)o(y)g Fz(GenT)l(extures)p |
| FC(,)120 1146 y(but)h(not)f(y)o(et)f(b)q(ound,)i(is)g(not)f(the)g(name) |
| g(of)g(a)g(texture)g(ob)s(ject.)191 1203 y(The)g(command)234 |
| 1295 y Fw(void)30 b Fz(GetP)o(olygonStipple)p FC(\()h |
| Fw(void)15 b Fv(*p)n(attern)g FC(\))g Fw(;)120 1387 y |
| FC(obtains)i(the)f(p)q(olygon)h(stipple.)24 b(The)17 |
| b(pattern)e(is)i(pac)o(k)o(ed)f(in)o(to)h(memory)e(according)120 |
| 1443 y(to)f(the)f(pro)q(cedure)i(giv)o(en)g(in)f(section)h(4.3.2)d(for) |
| h Fz(ReadPixels)p FC(;)h(it)g(is)h(as)e(if)i(the)e Fv(height)120 |
| 1500 y FC(and)20 b Fv(width)g FC(passed)g(to)f(that)f(command)i(w)o |
| (ere)f(b)q(oth)g(equal)i(to)e(32,)g(the)h Fv(typ)n(e)f |
| FC(w)o(ere)120 1556 y Fr(BITMAP)p FC(,)14 b(and)h(the)h |
| Fv(format)g FC(w)o(ere)f Fr(COLOR)p 811 1556 14 2 v 14 |
| w(INDEX)p FC(.)191 1612 y(The)g(command)234 1704 y Fw(void)30 |
| b Fz(GetP)o(oin)o(terv)p FC(\()f Fw(enum)15 b Fv(pname)p |
| Fw(,)g(void)f Fv(**p)n(ar)n(ams)i FC(\))f Fw(;)120 1796 |
| y FC(obtains)22 b(the)f(p)q(oin)o(ter)g(or)g(p)q(oin)o(ters)h(named)f |
| Fv(pname)g FC(in)h(the)f(arra)o(y)f Fv(p)n(ar)n(ams)p |
| FC(.)37 b(The)120 1853 y(p)q(ossible)245 b(v)m(alues)g(for)e |
| Fv(pname)g FC(are)120 1909 y Fr(SELECTION)p 321 1909 |
| V 14 w(BUFFER)p 467 1909 V 15 w(POINTER)p FC(,)14 b Fr(FEEDBACK)p |
| 839 1909 V 14 w(BUFFER)p 985 1909 V 15 w(POINTER)p FC(,)g |
| Fr(VERTEX)p 1313 1909 V 15 w(ARRAY)p 1438 1909 V 15 w(POINTER)p |
| FC(,)120 1966 y Fr(NORMAL)p 255 1966 V 15 w(ARRAY)p 380 |
| 1966 V 14 w(POINTER)p FC(,)113 b Fr(COLOR)p 784 1966 |
| V 15 w(ARRAY)p 909 1966 V 15 w(POINTER)p FC(,)f Fr(INDEX)p |
| 1313 1966 V 15 w(ARRAY)p 1438 1966 V 15 w(POINTER)p FC(,)120 |
| 2022 y Fr(TEXTURE)p 277 2022 V 15 w(COORD)p 402 2022 |
| V 14 w(ARRAY)p 526 2022 V 15 w(POINTER)p FC(,)14 b(and)i |
| Fr(EDGE)p 899 2022 V 15 w(FLAG)p 1002 2022 V 15 w(ARRAY)p |
| 1127 2022 V 15 w(POINTER)p FC(.)e(Eac)o(h)i(returns)g(a)120 |
| 2079 y(single)h(p)q(oin)o(ter)f(v)m(alue.)191 2135 y(Finally)l(,)234 |
| 2227 y Fw(ubyte)30 b Fz(*GetString)p FC(\()h Fw(enum)14 |
| b Fv(name)h FC(\))g Fw(;)120 2319 y FC(returns)20 b(a)f(p)q(oin)o(ter)h |
| (to)g(a)f(static)g(string)h(describing)i(some)d(asp)q(ect)h(of)f(the)h |
| (curren)o(t)120 2375 y(GL)13 b(connection.)20 b(The)13 |
| b(p)q(ossible)i(v)m(alues)f(for)e Fv(name)g FC(are)h |
| Fr(VENDOR)p FC(,)e Fr(RENDERER)p FC(,)g Fr(VERSION)p |
| FC(,)120 2432 y(and)18 b Fr(EXTENSIONS)p FC(.)d(The)j(format)f(of)g |
| (the)g Fr(RENDERER)f FC(and)i Fr(VERSION)e FC(strings)i(is)g(imple-)120 |
| 2488 y(men)o(tation)13 b(dep)q(enden)o(t.)21 b(The)13 |
| b Fr(EXTENSIONS)e FC(string)i(con)o(tains)g(a)g(space)g(separated)g |
| (list)p eop |
| %%Page: 148 157 |
| 148 156 bop 332 137 a FC(148)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)332 286 |
| y FC(of)20 b(extension)h(names)f(\(The)f(extension)i(names)f(themselv)o |
| (es)h(do)f(not)g(con)o(tain)g(an)o(y)332 343 y(spaces\);)15 |
| b(the)g Fr(VERSION)f FC(string)h(is)h(laid)g(out)f(as)g(follo)o(ws:)446 |
| 428 y Fy(<)p FC(v)o(ersion)g(n)o(um)o(b)q(er)p Fy(><)p |
| FC(space)p Fy(><)p FC(v)o(endor-sp)q(ec)q(i\014c)k(information)p |
| Fy(>)332 512 y FC(The)f(v)o(ersion)g(n)o(um)o(b)q(er)f(is)h(either)h |
| (of)e(the)g(form)35 b Fv(major)p 1313 512 14 2 v 17 w(numb)n(er.minor)p |
| 1609 512 V 17 w(numb)n(er)17 b FC(or)332 569 y Fv(major)p |
| 451 569 V 18 w(numb)n(er.minor)p 748 569 V 16 w(numb)n(er.r)n(ele)n |
| (ase)p 1056 569 V 15 w(numb)n(er)p FC(,)24 b(where)f(the)f(n)o(um)o(b)q |
| (ers)h(all)h(ha)o(v)o(e)332 625 y(one)14 b(or)g(more)g(digits.)20 |
| b(The)15 b(v)o(endor)f(sp)q(eci\014c)i(information)e(is)h(optional.)20 |
| b(Ho)o(w)o(ev)o(er,)13 b(if)332 682 y(it)j(is)h(presen)o(t)f(then)g(it) |
| g(p)q(ertains)h(to)f(the)g(serv)o(er)f(and)h(the)h(format)d(and)i(con)o |
| (ten)o(ts)g(are)332 738 y(implemen)o(tation)h(dep)q(enden)o(t.)403 |
| 795 y Fz(GetString)e FC(returns)g(the)f(v)o(ersion)h(n)o(um)o(b)q(er)g |
| (\(returned)g(in)g(the)g Fr(VERSION)e FC(string\))332 |
| 851 y(and)20 b(the)f(extension)h(names)f(\(returned)h(in)g(the)f |
| Fr(EXTENSIONS)f FC(string\))h(that)f(can)i(b)q(e)332 |
| 907 y(supp)q(orted)13 b(on)f(the)h(connection.)20 b(Th)o(us,)12 |
| b(if)h(the)g(clien)o(t)g(and)g(serv)o(er)f(supp)q(ort)g(di\013eren)o(t) |
| 332 964 y(v)o(ersions)20 b(and/or)g(extensions,)h(a)f(compatible)h(v)o |
| (ersion)f(and)g(list)h(of)e(extensions)i(is)332 1020 |
| y(returned.)403 1077 y(The)15 b(tables)h(on)f(the)g(follo)o(wing)h |
| (pages)f(indicate)i(whic)o(h)f(state)f(v)m(ariables)h(are)f(ob-)332 |
| 1133 y(tained)e(with)f(what)g(commands.)19 b(State)11 |
| b(v)m(ariables)j(that)d(can)h(b)q(e)h(obtained)g(using)g(an)o(y)332 |
| 1190 y(of)18 b Fz(GetBo)q(olean)o(v)p FC(,)j Fz(GetIn)o(tegerv)p |
| FC(,)d Fz(GetFloatv)p FC(,)i(or)f Fz(GetDoublev)g FC(are)f(listed)332 |
| 1246 y(with)f(just)g(one)g(of)f(these)h(commands)g({)f(the)h(one)g |
| (that)f(is)h(most)f(appropriate)h(giv)o(en)332 1303 y(the)i(t)o(yp)q(e) |
| g(of)f(the)h(data)g(to)f(b)q(e)h(returned.)32 b(These)19 |
| b(state)f(v)m(ariables)i(cannot)f(b)q(e)g(ob-)332 1359 |
| y(tained)e(using)g Fz(IsEnabled)p FC(.)23 b(Ho)o(w)o(ev)o(er,)16 |
| b(state)f(v)m(ariables)i(for)f(whic)o(h)h Fz(IsEnabled)g |
| FC(is)332 1416 y(listed)22 b(as)e(the)h(query)g(command)g(can)g(also)f |
| (b)q(e)i(obtained)f(using)g Fz(GetBo)q(olean)o(v)p FC(,)332 |
| 1472 y Fz(GetIn)o(tegerv)p FC(,)f Fz(GetFloatv)p FC(,)h(and)f |
| Fz(GetDoublev)p FC(.)34 b(State)19 b(v)m(ariables)i(for)e(whic)o(h)332 |
| 1528 y(an)o(y)f(other)f(command)h(is)g(listed)h(as)e(the)h(query)g |
| (command)g(can)g(b)q(e)g(obtained)h(only)332 1585 y(b)o(y)c(using)h |
| (that)f(command.)403 1641 y(Unless)d(otherwise)f(indicated,)j(m)o |
| (ulti-v)m(alued)f(state)e(v)m(ariables)h(return)f(their)h(m)o(ul-)332 |
| 1698 y(tiple)19 b(v)m(alues)g(in)f(the)f(same)h(order)f(as)g(they)g |
| (are)h(giv)o(en)f(as)h(argumen)o(ts)e(to)h(the)h(com-)332 |
| 1754 y(mands)e(that)g(set)g(them.)23 b(F)l(or)16 b(instance,)h(the)g(t) |
| o(w)o(o)e Fz(DepthRange)i FC(parameters)f(are)332 1811 |
| y(returned)h(in)h(the)f(order)f Fv(n)h FC(follo)o(w)o(ed)g(b)o(y)g |
| Fv(f)p FC(.)24 b(Similarly)l(,)19 b(p)q(oin)o(ts)f(for)e(ev)m(aluator)h |
| (maps)332 1867 y(are)c(returned)g(in)h(the)f(order)g(that)f(they)h(app) |
| q(eared)h(when)f(passed)h(to)e Fz(Map1)p FC(.)19 b Fz(Map2)332 |
| 1924 y FC(returns)f Fz(R)531 1931 y Fu(ij)579 1924 y |
| FC(in)h(the)f([\()p Fy(uor)q(der)p FC(\))p Fy(i)11 b |
| FC(+)h Fy(j)s FC(]th)17 b(blo)q(c)o(k)h(of)g(v)m(alues)h(\(see)f(page)f |
| (130)g(for)h Fy(i)p FC(,)g Fy(j)s FC(,)332 1980 y Fv(uor)n(der)p |
| FC(,)e(and)f Fz(R)615 1987 y Fu(ij)661 1980 y FC(\).)403 |
| 2037 y(Besides)20 b(pro)o(viding)g(a)f(means)g(to)g(obtain)g(the)h(v)m |
| (alues)g(of)f(state)f(v)m(ariables,)j(the)332 2093 y(GL)h(also)g(pro)o |
| (vides)g(a)g(means)g(to)f(sa)o(v)o(e)g(and)h(restore)f(groups)h(of)f |
| (state)g(v)m(ariables.)332 2149 y(The)12 b Fz(PushA)o(ttrib)p |
| FC(,)e Fz(PushClien)o(tA)o(ttrib)p FC(,)i Fz(P)o(opA)o(ttrib)e |
| FC(and)i Fz(P)o(opClien)o(tA)o(ttrib)332 2206 y FC(commands)j(are)g |
| (used)h(for)e(this)i(purp)q(ose.)k(The)c(commands)446 |
| 2291 y Fw(void)29 b Fz(PushA)o(ttrib)p FC(\()h Fw(bitfield)14 |
| b Fv(mask)h FC(\))g Fw(;)446 2347 y(void)29 b Fz(PushClien)o(tA)o |
| (ttrib)p FC(\()h Fw(bitfield)14 b Fv(mask)h FC(\))g Fw(;)332 |
| 2432 y FC(tak)o(e)j(a)h(bit)o(wise)h(OR)g(of)f(sym)o(b)q(olic)h |
| (constan)o(ts)e(indicating)j(whic)o(h)f(groups)f(of)f(state)332 |
| 2488 y(v)m(ariables)j(to)e(push)h(on)o(to)e(an)h(attribute)h(stac)o(k.) |
| 31 b Fz(PushA)o(ttrib)19 b FC(uses)h(a)f(serv)o(er)g(at-)p |
| eop |
| %%Page: 149 158 |
| 149 157 bop 1547 137 a FC(149)120 286 y(tribute)17 b(stac)o(k)f(while)i |
| Fz(PushClien)o(tA)o(ttrib)f FC(uses)f(a)h(clien)o(t)g(attribute)g(stac) |
| o(k.)23 b(Eac)o(h)120 343 y(constan)o(t)14 b(refers)h(to)f(a)g(group)g |
| (of)g(state)g(v)m(ariables.)21 b(The)15 b(classi\014cation)h(of)e(eac)o |
| (h)h(v)m(ari-)120 399 y(able)h(in)o(to)f(a)f(group)g(is)i(indicated)g |
| (in)g(the)f(follo)o(wing)g(tables)g(of)g(state)e(v)m(ariables.)21 |
| b(The)120 456 y(error)15 b Fr(STACK)p 345 456 14 2 v |
| 15 w(OVERFLOW)f FC(is)i(generated)f(if)h Fz(PushA)o(ttrib)f |
| FC(or)g Fz(PushClien)o(tA)o(ttrib)g FC(is)120 512 y(executed)j(while)g |
| (the)e(corresp)q(onding)h(stac)o(k)f(depth)h(is)g Fr(MAX)p |
| 1166 512 V 15 w(ATTRIB)p 1313 512 V 14 w(STACK)p 1437 |
| 512 V 15 w(DEPTH)e FC(or)120 569 y Fr(MAX)p 189 569 V |
| 15 w(CLIENT)p 336 569 V 15 w(ATTRIB)p 483 569 V 14 w(STACK)p |
| 607 569 V 15 w(DEPTH)f FC(resp)q(ectiv)o(ely)l(.)22 b(The)15 |
| b(commands)234 648 y Fw(void)30 b Fz(P)o(opA)o(ttrib)p |
| FC(\()f Fw(void)38 b FC(\))15 b Fw(;)234 704 y(void)30 |
| b Fz(P)o(opClien)o(tA)o(ttrib)p FC(\()g Fw(void)38 b |
| FC(\))15 b Fw(;)120 783 y FC(reset)j(the)f(v)m(alues)i(of)e(those)h |
| (state)e(v)m(ariables)j(that)e(w)o(ere)h(sa)o(v)o(ed)f(with)h(the)f |
| (last)h(cor-)120 840 y(resp)q(onding)23 b Fz(PushA)o(ttrib)d |
| FC(or)h Fz(P)o(opClien)o(tA)o(ttrib)p FC(.)38 b(Those)22 |
| b(not)e(sa)o(v)o(ed)h(remain)120 896 y(unc)o(hanged.)h(The)16 |
| b(error)f Fr(STACK)p 684 896 V 15 w(UNDERFLOW)e FC(is)j(generated)g(if) |
| g Fz(P)o(opA)o(ttrib)f FC(or)g Fz(P)o(op-)120 953 y(Clien)o(tA)o(ttrib) |
| h FC(is)g(executed)g(while)h(the)e(resp)q(ectiv)o(e)h(stac)o(k)e(is)i |
| (empt)o(y)l(.)191 1009 y(T)l(able)g(6.2)e(sho)o(ws)h(the)g(attribute)g |
| (groups)g(with)h(their)f(corresp)q(onding)i(sym)o(b)q(olic)120 |
| 1065 y(constan)o(t)e(names)g(and)g(stac)o(ks.)191 1122 |
| y(When)g Fz(PushA)o(ttrib)e FC(is)i(called)i(with)d Fr(TEXTURE)p |
| 1028 1122 V 15 w(BIT)f FC(set,)h(the)h(priorities,)g(b)q(order)120 |
| 1178 y(colors,)e(\014lter)g(mo)q(des,)g(and)g(wrap)f(mo)q(des)h(of)f |
| (the)h(curren)o(tly)g(b)q(ound)g(texture)g(ob)s(jects,)120 |
| 1235 y(as)20 b(w)o(ell)h(as)e(the)h(curren)o(t)g(texture)g(bindings)i |
| (and)e(enables,)i(are)e(pushed)h(on)o(to)e(the)120 1291 |
| y(attribute)k(stac)o(k.)41 b(\(Un)o(b)q(ound)24 b(texture)e(ob)s(jects) |
| g(are)h(not)f(pushed)i(or)e(restored.\))120 1348 y(When)h(an)g |
| (attribute)f(set)g(that)g(includes)j(texture)d(information)h(is)g(p)q |
| (opp)q(ed,)j(the)120 1404 y(bindings)13 b(and)e(enables)h(are)e |
| (\014rst)g(restored)h(to)f(their)h(pushed)h(v)m(alues,)g(then)f(the)g |
| (b)q(ound)120 1461 y(texture)16 b(ob)s(jects')g(priorities,)h(b)q |
| (order)f(colors,)g(\014lter)h(mo)q(des,)f(and)h(wrap)f(mo)q(des)g(are) |
| 120 1517 y(restored)f(to)g(their)g(pushed)i(v)m(alues.)191 |
| 1574 y(The)12 b(depth)h(of)e(eac)o(h)i(attribute)e(stac)o(k)h(is)g |
| (implemen)o(tation)i(dep)q(enden)o(t)f(but)f(m)o(ust)120 |
| 1630 y(b)q(e)17 b(at)e(least)h(16.)21 b(The)16 b(state)f(required)i |
| (for)e(eac)o(h)h(attribute)g(stac)o(k)f(is)h(p)q(oten)o(tially)h(16)120 |
| 1686 y(copies)g(of)d(eac)o(h)i(state)e(v)m(ariable,)j(16)d(masks)h |
| (indicating)i(whic)o(h)g(groups)e(of)f(v)m(ariables)120 |
| 1743 y(are)h(stored)f(in)i(eac)o(h)f(stac)o(k)f(en)o(try)l(,)h(and)g |
| (an)g(attribute)g(stac)o(k)f(p)q(oin)o(ter.)20 b(In)c(the)f(initial)120 |
| 1799 y(state,)f(b)q(oth)i(attribute)f(stac)o(ks)f(are)h(empt)o(y)l(.) |
| 191 1856 y(In)g(the)f(tables)h(that)e(follo)o(w,)i(a)f(t)o(yp)q(e)g(is) |
| h(indicated)h(for)d(eac)o(h)i(v)m(ariable.)21 b(T)l(able)15 |
| b(6.3)120 1912 y(explains)k(these)f(t)o(yp)q(es.)26 b(The)18 |
| b(t)o(yp)q(e)f(actually)h(iden)o(ti\014es)h(all)f(state)f(asso)q |
| (ciated)g(with)120 1969 y(the)22 b(indicated)h(description;)i(in)d |
| (certain)f(cases)h(only)f(a)g(p)q(ortion)h(of)e(this)i(state)e(is)120 |
| 2025 y(returned.)30 b(This)19 b(is)g(the)g(case)f(with)h(all)h |
| (matrices,)e(where)h(only)g(the)g(top)f(en)o(try)g(on)120 |
| 2082 y(the)e(stac)o(k)e(is)i(returned;)f(with)g(clip)i(planes,)f(where) |
| f(only)h(the)f(selected)h(clip)h(plane)f(is)120 2138 |
| y(returned,)e(with)e(parameters)g(describing)j(ligh)o(ts,)e(where)g |
| (only)g(the)g(v)m(alue)g(p)q(ertaining)120 2195 y(to)22 |
| b(the)h(selected)h(ligh)o(t)f(is)g(returned;)k(with)c(textures,)h |
| (where)f(only)g(the)f(selected)120 2251 y(texture)c(or)f(texture)g |
| (parameter)f(is)i(returned;)h(and)f(with)f(ev)m(aluator)h(maps,)f |
| (where)120 2307 y(only)i(the)g(selected)h(map)e(is)h(returned.)30 |
| b(Finally)l(,)20 b(a)e(\\{")g(in)h(the)g(attribute)f(column)120 |
| 2364 y(indicates)13 b(that)e(the)g(indicated)j(v)m(alue)e(is)g(not)f |
| (included)j(in)e(an)o(y)f(attribute)h(group)f(\(and)120 |
| 2420 y(th)o(us)k(can)g(not)g(b)q(e)g(pushed)h(or)f(p)q(opp)q(ed)h(with) |
| f Fz(PushA)o(ttrib)p FC(,)f Fz(PushClien)o(tA)o(ttrib)p |
| FC(,)120 2477 y Fz(P)o(opA)o(ttrib)p FC(,)g(or)h Fz(P)o(opClien)o(tA)o |
| (ttrib)p FC(\).)p eop |
| %%Page: 150 159 |
| 150 158 bop 332 137 a FC(150)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)p 533 |
| 512 1093 2 v 532 568 2 57 v 562 551 a FC(Stac)o(k)p 699 |
| 568 V 112 w(A)o(ttribute)p 1052 568 V 279 w(Constan)o(t)p |
| 1625 568 V 533 570 1093 2 v 533 572 V 532 628 2 57 v |
| 558 611 a(serv)o(er)p 699 628 V 73 w(accum-bu\013er)p |
| 1052 628 V 167 w Fr(ACCUM)p 1284 611 14 2 v 14 w(BUFFER)p |
| 1430 611 V 15 w(BIT)p 1625 628 2 57 v 533 630 1093 2 |
| v 532 686 2 57 v 558 669 a FC(serv)o(er)p 699 686 V 88 |
| w(color-bu\013er)p 1052 686 V 182 w Fr(COLOR)p 1284 669 |
| 14 2 v 14 w(BUFFER)p 1430 669 V 15 w(BIT)p 1625 686 2 |
| 57 v 533 688 1093 2 v 532 744 2 57 v 558 727 a FC(serv)o(er)p |
| 699 744 V 130 w(curren)o(t)p 1052 744 V 274 w Fr(CURRENT)p |
| 1379 727 14 2 v 15 w(BIT)p 1625 744 2 57 v 533 746 1093 |
| 2 v 532 803 2 57 v 558 786 a FC(serv)o(er)p 699 803 V |
| 79 w(depth-bu\013er)p 1052 803 V 174 w Fr(DEPTH)p 1284 |
| 786 14 2 v 14 w(BUFFER)p 1430 786 V 15 w(BIT)p 1625 803 |
| 2 57 v 533 804 1093 2 v 532 861 2 57 v 558 844 a FC(serv)o(er)p |
| 699 861 V 138 w(enable)p 1052 861 V 295 w Fr(ENABLE)p |
| 1368 844 14 2 v 15 w(BIT)p 1625 861 2 57 v 533 862 1093 |
| 2 v 532 919 2 57 v 558 902 a FC(serv)o(er)p 699 919 V |
| 163 w(ev)m(al)p 1052 919 V 341 w Fr(EVAL)p 1346 902 14 |
| 2 v 15 w(BIT)p 1625 919 2 57 v 533 920 1093 2 v 532 977 |
| 2 57 v 558 960 a FC(serv)o(er)p 699 977 V 171 w(fog)p |
| 1052 977 V 360 w Fr(FOG)p 1335 960 14 2 v 15 w(BIT)p |
| 1625 977 2 57 v 533 979 1093 2 v 532 1035 2 57 v 558 |
| 1018 a FC(serv)o(er)p 699 1035 V 161 w(hin)o(t)p 1052 |
| 1035 V 340 w Fr(HINT)p 1346 1018 14 2 v 15 w(BIT)p 1625 |
| 1035 2 57 v 533 1037 1093 2 v 532 1093 2 57 v 558 1076 |
| a FC(serv)o(er)p 699 1093 V 126 w(ligh)o(ting)p 1052 |
| 1093 V 261 w Fr(LIGHTING)p 1390 1076 14 2 v 14 w(BIT)p |
| 1625 1093 2 57 v 533 1095 1093 2 v 532 1151 2 57 v 558 |
| 1134 a FC(serv)o(er)p 699 1151 V 166 w(line)p 1052 1151 |
| V 345 w Fr(LINE)p 1346 1134 14 2 v 15 w(BIT)p 1625 1151 |
| 2 57 v 533 1153 1093 2 v 532 1209 2 57 v 558 1192 a FC(serv)o(er)p |
| 699 1209 V 171 w(list)p 1052 1209 V 349 w Fr(LIST)p 1346 |
| 1192 14 2 v 15 w(BIT)p 1625 1209 2 57 v 533 1211 1093 |
| 2 v 532 1267 2 57 v 558 1251 a FC(serv)o(er)p 699 1267 |
| V 154 w(pixel)p 1052 1267 V 271 w Fr(PIXEL)p 1306 1251 |
| 14 2 v 14 w(MODE)p 1408 1251 V 15 w(BIT)p 1625 1267 2 |
| 57 v 533 1269 1093 2 v 532 1326 2 57 v 558 1309 a FC(serv)o(er)p |
| 699 1326 V 149 w(p)q(oin)o(t)p 1052 1326 V 317 w Fr(POINT)p |
| 1357 1309 14 2 v 15 w(BIT)p 1625 1326 2 57 v 533 1327 |
| 1093 2 v 532 1384 2 57 v 558 1367 a FC(serv)o(er)p 699 |
| 1384 V 123 w(p)q(olygon)p 1052 1384 V 268 w Fr(POLYGON)p |
| 1379 1367 14 2 v 15 w(BIT)p 1625 1384 2 57 v 533 1385 |
| 1093 2 v 532 1442 2 57 v 558 1425 a FC(serv)o(er)p 699 |
| 1442 V 49 w(p)q(olygon-stipple)p 1052 1442 V 113 w Fr(POLYGON)p |
| 1295 1425 14 2 v 14 w(STIPPLE)p 1463 1425 V 15 w(BIT)p |
| 1625 1442 2 57 v 533 1443 1093 2 v 532 1500 2 57 v 558 |
| 1483 a FC(serv)o(er)p 699 1500 V 138 w(scissor)p 1052 |
| 1500 V 282 w Fr(SCISSOR)p 1379 1483 14 2 v 15 w(BIT)p |
| 1625 1500 2 57 v 533 1502 1093 2 v 532 1558 2 57 v 558 |
| 1541 a FC(serv)o(er)p 699 1558 V 73 w(stencil-bu\013er)p |
| 1052 1558 V 146 w Fr(STENCIL)p 1306 1541 14 2 v 14 w(BUFFER)p |
| 1452 1541 V 15 w(BIT)p 1625 1558 2 57 v 533 1560 1093 |
| 2 v 532 1616 2 57 v 558 1599 a FC(serv)o(er)p 699 1616 |
| V 130 w(texture)p 1052 1616 V 274 w Fr(TEXTURE)p 1379 |
| 1599 14 2 v 15 w(BIT)p 1625 1616 2 57 v 533 1618 1093 |
| 2 v 532 1674 2 57 v 558 1657 a FC(serv)o(er)p 699 1674 |
| V 104 w(transform)p 1052 1674 V 226 w Fr(TRANSFORM)p |
| 1401 1657 14 2 v 14 w(BIT)p 1625 1674 2 57 v 533 1676 |
| 1093 2 v 532 1732 2 57 v 558 1715 a FC(serv)o(er)p 699 |
| 1732 V 114 w(viewp)q(ort)p 1052 1732 V 248 w Fr(VIEWPORT)p |
| 1390 1715 14 2 v 14 w(BIT)p 1625 1732 2 57 v 533 1734 |
| 1093 2 v 532 1791 2 57 v 558 1774 a FC(serv)o(er)p 699 |
| 1791 V 1052 1791 V 507 w Fr(ALL)p 1251 1774 14 2 v 15 |
| w(ATTRIB)p 1398 1774 V 14 w(BITS)p 1625 1791 2 57 v 533 |
| 1792 1093 2 v 532 1849 2 57 v 563 1832 a FC(clien)o(t)p |
| 699 1849 V 86 w(v)o(ertex-arra)o(y)p 1052 1849 V 100 |
| w Fr(CLIENT)p 1233 1832 14 2 v 14 w(VERTEX)p 1379 1832 |
| V 15 w(ARRAY)p 1504 1832 V 14 w(BIT)p 1625 1849 2 57 |
| v 533 1850 1093 2 v 532 1907 2 57 v 563 1890 a FC(clien)o(t)p |
| 699 1907 V 104 w(pixel-store)p 1052 1907 V 131 w Fr(CLIENT)p |
| 1244 1890 14 2 v 14 w(PIXEL)p 1368 1890 V 15 w(STORE)p |
| 1493 1890 V 14 w(BIT)p 1625 1907 2 57 v 533 1908 1093 |
| 2 v 532 1965 2 57 v 563 1948 a FC(clien)o(t)p 699 1965 |
| V 153 w(select)p 1052 1965 V 148 w Fr(can't)20 b(be)i(pushed)e(or)i |
| (pop'd)p 1625 1965 V 533 1967 1093 2 v 532 2023 2 57 |
| v 563 2006 a FC(clien)o(t)p 699 2023 V 122 w(feedbac)o(k)p |
| 1052 2023 V 117 w Fr(can't)e(be)i(pushed)e(or)i(pop'd)p |
| 1625 2023 V 533 2025 1093 2 v 532 2081 2 57 v 563 2064 |
| a FC(clien)o(t)p 699 2081 V 1052 2081 V 440 w Fr(ALL)p |
| 1178 2064 14 2 v 15 w(CLIENT)p 1325 2064 V 14 w(ATTRIB)p |
| 1471 2064 V 14 w(BITS)p 1625 2081 2 57 v 533 2083 1093 |
| 2 v 804 2210 a FC(T)l(able)16 b(6.2:)j(A)o(ttribute)c(groups)p |
| eop |
| %%Page: 151 160 |
| 151 159 bop 1547 137 a FC(151)p 264 597 1207 2 v 263 |
| 654 2 57 v 289 637 a(T)o(yp)q(e)16 b(co)q(de)p 520 654 |
| V 50 w(Explanation)p 1470 654 V 264 655 1207 2 v 264 |
| 664 V 263 720 2 57 v 374 703 a Fy(B)p 520 720 V 138 w |
| FC(Bo)q(olean)p 1470 720 V 264 722 1207 2 v 263 778 2 |
| 57 v 375 761 a Fy(C)p 520 778 V 138 w FC(Color)f(\(\015oating-p)q(oin)o |
| (t)g(R,)h(G,)e(B,)h(and)g(A)h(v)m(alues\))p 1470 778 |
| V 264 780 1207 2 v 263 836 2 57 v 363 820 a Fy(C)s(I)p |
| 520 836 V 127 w FC(Color)f(index)h(\(\015oating-p)q(oin)o(t)g(index)g |
| (v)m(alue\))p 1470 836 V 264 838 1207 2 v 263 951 2 113 |
| v 376 878 a Fy(T)p 520 951 V 143 w FC(T)l(exture)j(co)q(ordinates)g |
| (\(\015oating-p)q(oin)o(t)g Fy(s)p FC(,)h Fy(t)p FC(,)f |
| Fy(r)q FC(,)g Fy(q)546 934 y FC(v)m(alues\))p 1470 951 |
| V 264 953 1207 2 v 263 1066 2 113 v 372 992 a Fy(N)p |
| 520 1066 V 137 w FC(Normal)27 b(co)q(ordinates)h(\(\015oating-p)q(oin)o |
| (t)f Fy(x)p FC(,)j Fy(y)r FC(,)g Fy(z)546 1049 y FC(v)m(alues\))p |
| 1470 1066 V 264 1067 1207 2 v 263 1124 2 57 v 374 1107 |
| a Fy(V)p 520 1124 V 145 w FC(V)l(ertex,)15 b(including)j(asso)q(ciated) |
| d(data)p 1470 1124 V 264 1125 1207 2 v 263 1182 2 57 |
| v 376 1165 a Fy(Z)p 520 1182 V 139 w FC(In)o(teger)p |
| 1470 1182 V 264 1183 1207 2 v 263 1240 2 57 v 361 1223 |
| a Fy(Z)395 1207 y Fq(+)p 520 1240 V 546 1223 a FC(Non-negativ)o(e)h(in) |
| o(teger)p 1470 1240 V 264 1242 1207 2 v 263 1298 2 57 |
| v 318 1281 a Fy(Z)349 1288 y Fu(k)370 1281 y FC(,)f Fy(Z)429 |
| 1288 y Fu(k)q FG(\003)p 520 1298 V 546 1281 a Fy(k)q |
| FC(-v)m(alued)i(in)o(teger)e(\()p Fy(k)q FB(\003)g FC(indicates)i |
| Fy(k)f FC(is)g(minim)o(um\))p 1470 1298 V 264 1300 1207 |
| 2 v 263 1356 2 57 v 375 1339 a Fy(R)p 520 1356 V 136 |
| w FC(Floating-p)q(oin)o(t)g(n)o(um)o(b)q(er)p 1470 1356 |
| V 264 1358 1207 2 v 263 1414 2 57 v 360 1397 a Fy(R)395 |
| 1381 y Fq(+)p 520 1414 V 546 1397 a FC(Non-negativ)o(e)g(\015oating-p)q |
| (oin)o(t)f(n)o(um)o(b)q(er)p 1470 1414 V 264 1416 1207 |
| 2 v 263 1474 2 59 v 343 1457 a Fy(R)378 1441 y Fq([)p |
| Fu(a;b)p Fq(])p 520 1474 V 546 1457 a FC(Floating-p)q(oin)o(t)h(n)o(um) |
| o(b)q(er)f(in)h(the)g(range)f([)p Fy(a;)8 b(b)p FC(])p |
| 1470 1474 V 264 1476 1207 2 v 263 1532 2 57 v 365 1516 |
| a Fy(R)400 1499 y Fu(k)p 520 1532 V 546 1516 a Fy(k)q |
| FC(-tuple)16 b(of)f(\015oating-p)q(oin)o(t)h(n)o(um)o(b)q(ers)p |
| 1470 1532 V 264 1534 1207 2 v 263 1591 2 57 v 375 1574 |
| a Fy(P)p 520 1591 V 142 w FC(P)o(osition)11 b(\()p Fy(x)p |
| FC(,)f Fy(y)r FC(,)h Fy(z)r FC(,)g Fy(w)g FC(\015oating-p)q(oin)o(t)g |
| (co)q(ordinates\))p 1470 1591 V 264 1592 1207 2 v 263 |
| 1649 2 57 v 373 1632 a Fy(D)p 520 1649 V 135 w FC(Direction)16 |
| b(\()p Fy(x)p FC(,)e Fy(y)r FC(,)h Fy(z)i FC(\015oating-p)q(oin)o(t)f |
| (co)q(ordinates\))p 1470 1649 V 264 1650 1207 2 v 263 |
| 1707 2 57 v 357 1690 a Fy(M)5 b FC(4)p 520 1707 V 117 |
| w(4)10 b FB(\002)g FC(4)15 b(\015oating-p)q(oin)o(t)h(matrix)p |
| 1470 1707 V 264 1708 1207 2 v 263 1765 2 57 v 381 1748 |
| a Fy(I)p 520 1765 V 145 w FC(Image)p 1470 1765 V 264 |
| 1767 1207 2 v 263 1823 2 57 v 376 1806 a Fy(A)p 520 1823 |
| V 136 w FC(A)o(ttribute)f(stac)o(k)g(en)o(try)l(,)f(including)k(mask)p |
| 1470 1823 V 264 1825 1207 2 v 263 1881 2 57 v 374 1864 |
| a Fy(Y)p 520 1881 V 146 w FC(P)o(oin)o(ter)d(\(data)f(t)o(yp)q(e)h |
| (unsp)q(eci\014ed\))p 1470 1881 V 264 1883 1207 2 v 263 |
| 1996 2 113 v 309 1922 a Fy(n)10 b FB(\002)h Fy(ty)r(pe)p |
| 520 1996 V 70 w(n)31 b FC(copies)h(of)e(t)o(yp)q(e)h |
| Fy(ty)r(pe)g FC(\()p Fy(n)p FB(\003)f FC(indicates)i |
| Fy(n)f FC(is)546 1979 y(minim)o(um\))p 1470 1996 V 264 |
| 1997 1207 2 v 562 2124 a(T)l(able)16 b(6.3:)j(State)c(v)m(ariable)i(t)o |
| (yp)q(es)p eop |
| %%Page: 152 161 |
| 152 160 bop 332 137 a FC(152)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)380 2063 |
| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 380 2063 a 405 2129 a Fm(Get)f(v)n(alue)57 b(T)o(yp)q(e)788 |
| 2092 y(Get)788 2129 y(Cmnd)949 2092 y(Initial)949 2129 |
| y(V)m(alue)164 b(Description)f(Sec.)57 b(A)o(ttribute)p |
| 380 2146 1529 2 v 379 2245 2 100 v 488 2180 a Fe({)p |
| 596 2245 V 604 2245 V 149 w Fh(Z)680 2186 y Fd(11)p 763 |
| 2245 V 832 2180 a Fk({)p 923 2245 V 137 w Fm(0)p 1083 |
| 2245 V 94 w(When)14 b Fc(6)p Fm(=)e(0,)h(indicates)1108 |
| 2230 y Fk(b)q(egin/end)e Fm(ob)r(ject)p 1552 2245 V 1578 |
| 2180 a(2.6.1)p 1688 2245 V 123 w({)p 1908 2245 V 380 |
| 2247 1529 2 v 379 2346 2 100 v 488 2282 a Fe({)p 596 |
| 2346 V 604 2346 V 164 w Fh(V)p 763 2346 V 141 w Fk({)p |
| 923 2346 V 137 w Fm({)p 1083 2346 V 94 w(Previous)k(v)o(ertex)g(in)1108 |
| 2332 y Fk(Begin/End)f(line)p 1552 2346 V 1578 2282 a |
| Fm(2.6.1)p 1688 2346 V 123 w({)p 1908 2346 V 380 2348 |
| 1529 2 v 379 2448 2 100 v 488 2383 a Fe({)p 596 2448 |
| V 604 2448 V 164 w Fh(B)p 763 2448 V 134 w Fk({)p 923 |
| 2448 V 137 w Fm({)p 1083 2448 V 94 w(Indicates)h(if)e |
| Fb(line-vertex)1108 2433 y Fm(is)h(the)h(\014rst)p 1552 |
| 2448 V 1578 2383 a(2.6.1)p 1688 2448 V 123 w({)p 1908 |
| 2448 V 380 2449 1529 2 v 379 2549 2 100 v 488 2484 a |
| Fe({)p 596 2549 V 604 2549 V 164 w Fh(V)p 763 2549 V |
| 141 w Fk({)p 923 2549 V 137 w Fm({)p 1083 2549 V 94 w(First)g(v)o |
| (ertex)f(of)g(a)1108 2534 y Fk(Begin/End)e(line)h(lo)q(op)p |
| 1552 2549 V 1578 2484 a Fm(2.6.1)p 1688 2549 V 123 w({)p |
| 1908 2549 V 380 2551 1529 2 v 379 2601 2 50 v 488 2586 |
| a Fe({)p 596 2601 V 604 2601 V 152 w Fh(Z)686 2571 y |
| Fd(+)p 763 2601 V 832 2586 a Fk({)p 923 2601 V 137 w |
| Fm({)p 1083 2601 V 94 w(Line)h(stipple)g(coun)o(ter)p |
| 1552 2601 V 125 w(3.4)p 1688 2601 V 140 w({)p 1908 2601 |
| V 380 2602 1529 2 v 379 2702 2 100 v 488 2637 a Fe({)p |
| 596 2702 V 604 2702 V 127 w Fh(n)9 b Fc(\002)g Fh(V)p |
| 763 2702 V 103 w Fk({)p 923 2702 V 137 w Fm({)p 1083 |
| 2702 V 94 w(V)m(ertices)16 b(inside)d(of)1108 2687 y |
| Fk(Begin/End)h(p)q(olygon)p 1552 2702 V 1578 2637 a Fm(2.6.1)p |
| 1688 2702 V 123 w({)p 1908 2702 V 380 2703 1529 2 v 379 |
| 2803 2 100 v 488 2738 a Fe({)p 596 2803 V 604 2803 V |
| 152 w Fh(Z)686 2723 y Fd(+)p 763 2803 V 832 2738 a Fk({)p |
| 923 2803 V 137 w Fm({)p 1083 2803 V 94 w(Num)o(b)q(er)g(of)1108 |
| 2788 y Fb(p)n(olygon-vertic)n(es)p 1552 2803 V 1578 2738 |
| a Fm(2.6.1)p 1688 2803 V 123 w({)p 1908 2803 V 380 2805 |
| 1529 2 v 379 2954 2 150 v 488 2840 a Fe({)p 596 2954 |
| V 604 2954 V 129 w Fm(2)9 b Fc(\002)g Fh(V)p 763 2954 |
| V 105 w Fk({)p 923 2954 V 137 w Fm({)p 1083 2954 V 94 |
| w(Previous)15 b(t)o(w)o(o)e(v)o(ertices)1108 2889 y(in)h(a)f |
| Fk(Begin/End)1108 2939 y(triangle)g(strip)p 1552 2954 |
| V 1578 2840 a Fm(2.6.1)p 1688 2954 V 123 w({)p 1908 2954 |
| V 380 2956 1529 2 v 379 3105 2 150 v 488 2991 a Fe({)p |
| 596 3105 V 604 3105 V 158 w Fh(Z)689 2997 y Fd(3)p 763 |
| 3105 V 832 2991 a Fk({)p 923 3105 V 137 w Fm({)p 1083 |
| 3105 V 94 w(Num)o(b)q(er)h(of)f(v)o(ertices)i(so)1108 |
| 3041 y(far)f(in)f(triangle)h(strip:)k(0,)1108 3090 y(1,)13 |
| b(or)h(more)p 1552 3105 V 1578 2991 a(2.6.1)p 1688 3105 |
| V 123 w({)p 1908 3105 V 380 3107 1529 2 v 379 3207 2 |
| 100 v 488 3142 a Fe({)p 596 3207 V 604 3207 V 158 w Fh(Z)689 |
| 3148 y Fd(2)p 763 3207 V 832 3142 a Fk({)p 923 3207 V |
| 137 w Fm({)p 1083 3207 V 94 w(T)m(riangle)f(strip)h(A/B)1108 |
| 3192 y(v)o(ertex)h(p)q(oin)o(ter)p 1552 3207 V 1578 3142 |
| a(2.6.1)p 1688 3207 V 123 w({)p 1908 3207 V 380 3208 |
| 1529 2 v 379 3308 2 100 v 488 3243 a Fe({)p 596 3308 |
| V 604 3308 V 129 w Fm(3)9 b Fc(\002)g Fh(V)p 763 3308 |
| V 105 w Fk({)p 923 3308 V 137 w Fm({)p 1083 3308 V 94 |
| w(V)m(ertices)16 b(of)d(the)h(quad)1108 3293 y(under)h(construction)p |
| 1552 3308 V 1578 3243 a(2.6.1)p 1688 3308 V 123 w({)p |
| 1908 3308 V 380 3310 1529 2 v 379 3459 2 150 v 488 3344 |
| a Fe({)p 596 3459 V 604 3459 V 158 w Fh(Z)689 3350 y |
| Fd(4)p 763 3459 V 832 3344 a Fk({)p 923 3459 V 137 w |
| Fm({)p 1083 3459 V 94 w(Num)o(b)q(er)f(of)f(v)o(ertices)i(so)1108 |
| 3394 y(far)f(in)f(quad)h(strip:)k(0,)13 b(1,)1108 3444 |
| y(2,)g(or)h(more)p 1552 3459 V 1578 3344 a(2.6.1)p 1688 |
| 3459 V 123 w({)p 1908 3459 V 380 3461 1529 2 v 1778 2063 |
| a |
| currentpoint grestore moveto |
| 1778 2063 a 415 2225 a FF(T)l(able)i(6.4.)22 b(GL)17 |
| b(In)o(ternal)e(b)q(egin-end)i(state)f(v)m(ariables)g(\(inaccessible\)) |
| p eop |
| %%Page: 153 162 |
| 153 161 bop 1547 137 a FC(153)156 2416 y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 156 2416 a 414 |
| 2482 a Fm(Get)14 b(v)n(alue)269 b(T)o(yp)q(e)1080 2445 |
| y(Get)1080 2482 y(Cmnd)1325 2445 y(Initial)1325 2482 |
| y(V)m(alue)167 b(Description)d(Sec.)57 b(A)o(ttribute)p |
| 170 2499 2119 2 v 169 2579 2 81 v 368 2564 a Fe(CURRENT)p |
| 522 2564 10 2 v 11 w(COLOR)p 824 2579 2 81 v 832 2579 |
| V 248 w Fh(C)p 975 2579 V 1003 2527 a Fk(GetIn)o(tegerv,)1003 |
| 2564 y(GetFloatv)p 1295 2579 V 104 w Fm(1,1,1,1)p 1462 |
| 2579 V 47 w(Curren)o(t)15 b(color)p 1932 2579 V 242 w(2.7)p |
| 2067 2579 V 85 w(curren)o(t)p 2288 2579 V 170 2581 2119 |
| 2 v 169 2661 2 81 v 373 2646 a Fe(CURRENT)p 527 2646 |
| 10 2 v 11 w(INDEX)p 824 2661 2 81 v 832 2661 V 243 w |
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| 2646 y(GetFloatv)p 1295 2661 V 152 w Fm(1)p 1462 2661 |
| V 98 w(Curren)o(t)g(color)e(index)p 1932 2661 V 131 w(2.7)p |
| 2067 2661 V 85 w(curren)o(t)p 2288 2661 V 170 2663 2119 |
| 2 v 169 2762 2 100 v 277 2698 a Fe(CURRENT)p 431 2698 |
| 10 2 v 11 w(TEXTURE)p 592 2698 V 12 w(COORDS)p 824 2762 |
| 2 100 v 832 2762 V 157 w Fh(T)p 975 2762 V 117 w Fk(GetFloatv)p |
| 1295 2762 V 77 w Fm(0,0,0,1)p 1462 2762 V 47 w(Curren)o(t)i(texture) |
| 1488 2748 y(co)q(ordinates)p 1932 2762 V 1974 2698 a(2.7)p |
| 2067 2762 V 85 w(curren)o(t)p 2288 2762 V 170 2764 2119 |
| 2 v 169 2814 2 50 v 354 2799 a Fe(CURRENT)p 508 2799 |
| 10 2 v 12 w(NORMAL)p 824 2814 2 50 v 832 2814 V 233 w |
| Fh(N)p 975 2814 V 111 w Fk(GetFloatv)p 1295 2814 V 93 |
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| 2814 V 201 w(2.7)p 2067 2814 V 85 w(curren)o(t)p 2288 |
| 2814 V 170 2816 2119 2 v 169 2915 2 100 v 496 2851 a |
| Fe({)p 824 2915 V 832 2915 V 377 w Fh(C)p 975 2915 V |
| 206 w Fk({)p 1295 2915 V 224 w Fm(-)p 1462 2915 V 102 |
| w(Color)e(asso)q(ciated)i(with)1488 2900 y(last)f(v)o(ertex)p |
| 1932 2915 V 1974 2851 a(2.6)p 2067 2915 V 140 w({)p 2288 |
| 2915 V 170 2917 2119 2 v 169 3017 2 100 v 496 2952 a |
| Fe({)p 824 3017 V 832 3017 V 366 w Fh(C)s(I)p 975 3017 |
| V 196 w Fk({)p 1295 3017 V 224 w Fm(-)p 1462 3017 V 102 |
| w(Color)f(index)h(asso)q(ciated)1488 3002 y(with)g(last)f(v)o(ertex)p |
| 1932 3017 V 1974 2952 a(2.6)p 2067 3017 V 140 w({)p 2288 |
| 3017 V 170 3018 2119 2 v 169 3168 2 150 v 496 3053 a |
| Fe({)p 824 3168 V 832 3168 V 378 w Fh(T)p 975 3168 V |
| 211 w Fk({)p 1295 3168 V 224 w Fm(-)p 1462 3168 V 102 |
| w(T)m(exture)i(co)q(ordinates)1488 3103 y(asso)q(ciated)g(with)e(last) |
| 1488 3153 y(v)o(ertex)p 1932 3168 V 1974 3053 a(2.6)p |
| 2067 3168 V 140 w({)p 2288 3168 V 170 3169 2119 2 v 169 |
| 3219 2 50 v 279 3204 a Fe(CURRENT)p 433 3204 10 2 v 12 |
| w(RASTER)p 570 3204 V 11 w(POSITION)p 824 3219 2 50 v |
| 832 3219 V 151 w Fh(R)911 3189 y Fd(4)p 975 3219 V 1030 |
| 3204 a Fk(GetFloatv)p 1295 3219 V 77 w Fm(0,0,0,1)p 1462 |
| 3219 V 47 w(Curren)o(t)i(raster)g(p)q(osition)p 1932 |
| 3219 V 57 w(2.12)p 2067 3219 V 74 w(curren)o(t)p 2288 |
| 3219 V 170 3221 2119 2 v 169 3271 2 50 v 276 3256 a Fe(CURRENT)p |
| 430 3256 10 2 v 11 w(RASTER)p 566 3256 V 12 w(DIST)n(ANCE)p |
| 824 3271 2 50 v 832 3271 V 142 w Fh(R)907 3241 y Fd(+)p |
| 975 3271 V 1030 3256 a Fk(GetFloatv)p 1295 3271 V 125 |
| w Fm(0)p 1462 3271 V 98 w(Curren)o(t)f(raster)g(distance)p |
| 1932 3271 V 57 w(2.12)p 2067 3271 V 74 w(curren)o(t)p |
| 2288 3271 V 170 3272 2119 2 v 169 3402 2 131 v 300 3338 |
| a Fe(CURRENT)p 454 3338 10 2 v 11 w(RASTER)p 590 3338 |
| V 11 w(COLOR)p 824 3402 2 131 v 832 3402 V 180 w Fh(C)p |
| 975 3402 V 1003 3301 a Fk(GetIn)o(tegerv,)1003 3338 y(GetFloatv)p |
| 1295 3402 V 104 w Fm(1,1,1,1)p 1462 3402 V 47 w(Color)f(asso)q(ciated)i |
| (with)1488 3387 y(raster)g(p)q(osition)p 1932 3402 V |
| 1964 3338 a(2.12)p 2067 3402 V 74 w(curren)o(t)p 2288 |
| 3402 V 170 3404 2119 2 v 169 3534 2 131 v 305 3469 a |
| Fe(CURRENT)p 459 3469 10 2 v 11 w(RASTER)p 595 3469 V |
| 11 w(INDEX)p 824 3534 2 131 v 832 3534 V 175 w Fh(C)s(I)p |
| 975 3534 V 1003 3433 a Fk(GetIn)o(tegerv,)1003 3469 y(GetFloatv)p |
| 1295 3534 V 152 w Fm(1)p 1462 3534 V 98 w(Color)e(index)h(asso)q |
| (ciated)1488 3519 y(with)g(raster)h(p)q(osition)p 1932 |
| 3534 V 1964 3469 a(2.12)p 2067 3534 V 74 w(curren)o(t)p |
| 2288 3534 V 170 3536 2119 2 v 169 3685 2 150 v 208 3571 |
| a Fe(CURRENT)p 362 3571 10 2 v 12 w(RASTER)p 499 3571 |
| V 11 w(TEXTURE)p 660 3571 V 12 w(COORDS)p 824 3685 2 |
| 150 v 832 3685 V 89 w Fh(T)p 975 3685 V 117 w Fk(GetFloatv)p |
| 1295 3685 V 77 w Fm(0,0,0,1)p 1462 3685 V 47 w(T)m(exture)g(co)q |
| (ordinates)1488 3621 y(asso)q(ciated)g(with)e(raster)1488 |
| 3670 y(p)q(osition)p 1932 3685 V 1964 3571 a(2.12)p 2067 |
| 3685 V 74 w(curren)o(t)p 2288 3685 V 170 3687 2119 2 |
| v 169 3787 2 100 v 227 3722 a Fe(CURRENT)p 381 3722 10 |
| 2 v 11 w(RASTER)p 517 3722 V 11 w(POSITION)p 677 3722 |
| V 12 w(V)m(ALID)p 824 3787 2 100 v 832 3787 V 107 w Fh(B)p |
| 975 3787 V 82 w Fk(GetBo)q(olean)o(v)p 1295 3787 V 64 |
| w Fb(T)m(rue)p 1462 3787 V 65 w Fm(Raster)h(p)q(osition)g(v)n(alid)1488 |
| 3772 y(bit)p 1932 3787 V 1964 3722 a(2.12)p 2067 3787 |
| V 74 w(curren)o(t)p 2288 3787 V 170 3788 2119 2 v 169 |
| 3838 2 50 v 413 3823 a Fe(EDGE)p 501 3823 10 2 v 12 w(FLA)o(G)p |
| 824 3838 2 50 v 832 3838 V 294 w Fh(B)p 975 3838 V 82 |
| w Fk(GetBo)q(olean)o(v)p 1295 3838 V 64 w Fb(T)m(rue)p |
| 1462 3838 V 65 w Fm(Edge)g(\015ag)p 1932 3838 V 301 w(2.6.2)p |
| 2067 3838 V 68 w(curren)o(t)p 2288 3838 V 170 3840 2119 |
| 2 v 1579 2416 a |
| currentpoint grestore moveto |
| 1579 2416 a 361 2575 a FF(T)l(able)i(6.5.)21 |
| b(Curren)o(t)16 b(V)l(alues)g(and)h(Asso)q(ciated)f(Data)p |
| eop |
| %%Page: 154 163 |
| 154 162 bop 332 137 a FC(154)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)369 2717 |
| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 369 2717 a 605 2783 a Fm(Get)f(v)n(alue)246 b(T)o(yp)q(e)1242 |
| 2745 y(Get)1242 2783 y(Cmnd)1476 2745 y(Initial)1476 |
| 2783 y(V)m(alue)329 b(Description)321 b(Sec.)75 b(A)o(ttribute)p |
| 383 2799 2420 2 v 382 2849 2 50 v 572 2834 a Fe(VER)n(TEX)p |
| 700 2834 10 2 v 11 w(ARRA)n(Y)p 992 2849 2 50 v 1000 |
| 2849 V 239 w Fh(B)p 1143 2849 V 107 w Fk(IsEnabled)p |
| 1450 2849 V 83 w Fb(F)m(alse)p 1609 2849 V 58 w Fm(V)m(ertex)15 |
| b(arra)o(y)f(enable)p 2409 2849 V 452 w(2.8)p 2531 2849 |
| V 58 w(v)o(ertex-arra)o(y)p 2801 2849 V 383 2851 2420 |
| 2 v 382 2900 2 50 v 533 2886 a Fe(VER)n(TEX)p 661 2886 |
| 10 2 v 11 w(ARRA)n(Y)p 780 2886 V 12 w(SIZE)p 992 2900 |
| 2 50 v 1000 2900 V 187 w Fh(Z)1074 2870 y Fd(+)p 1143 |
| 2900 V 1171 2886 a Fk(GetIn)o(tegerv)p 1450 2900 V 94 |
| w Fm(4)p 1609 2900 V 94 w(Co)q(ordinates)g(p)q(er)h(v)o(ertex)p |
| 2409 2900 V 393 w(2.8)p 2531 2900 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 2900 V 383 2902 2420 2 v 382 2952 2 50 v 524 2937 |
| a Fe(VER)n(TEX)p 652 2937 10 2 v 11 w(ARRA)n(Y)p 771 |
| 2937 V 12 w(TYPE)p 992 2952 2 50 v 1000 2952 V 184 w |
| Fh(Z)1077 2943 y Fd(4)p 1143 2952 V 1171 2937 a Fk(GetIn)o(tegerv)p |
| 1450 2952 V 50 w Fr(FLOAT)p 1609 2952 V 49 w Fm(T)o(yp)q(e)f(of)g(v)o |
| (ertex)h(co)q(ordinates)p 2409 2952 V 322 w(2.8)p 2531 |
| 2952 V 58 w(v)o(ertex-arra)o(y)p 2801 2952 V 383 2954 |
| 2420 2 v 382 3003 2 50 v 509 2988 a Fe(VER)n(TEX)p 637 |
| 2988 10 2 v 11 w(ARRA)n(Y)p 756 2988 V 12 w(STRIDE)p |
| 992 3003 2 50 v 1000 3003 V 162 w Fh(Z)1074 2973 y Fd(+)p |
| 1143 3003 V 1171 2988 a Fk(GetIn)o(tegerv)p 1450 3003 |
| V 94 w Fm(0)p 1609 3003 V 94 w(Stride)g(b)q(et)o(w)o(een)g(v)o(ertices) |
| p 2409 3003 V 391 w(2.8)p 2531 3003 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3003 V 383 3005 2420 2 v 382 3055 2 50 v 495 3040 |
| a Fe(VER)n(TEX)p 623 3040 10 2 v 12 w(ARRA)n(Y)p 743 |
| 3040 V 12 w(POINTER)p 992 3055 2 50 v 1000 3055 V 163 |
| w Fh(Y)p 1143 3055 V 89 w Fk(GetP)o(oin)o(t)o(erv)p 1450 |
| 3055 V 91 w Fm(0)p 1609 3055 V 94 w(P)o(oin)o(ter)f(to)g(the)g(v)o |
| (ertex)h(arra)o(y)p 2409 3055 V 320 w(2.8)p 2531 3055 |
| V 58 w(v)o(ertex-arra)o(y)p 2801 3055 V 383 3057 2420 |
| 2 v 382 3106 2 50 v 567 3091 a Fe(NORMAL)p 704 3091 10 |
| 2 v 12 w(ARRA)n(Y)p 992 3106 2 50 v 1000 3106 V 234 w |
| Fh(B)p 1143 3106 V 107 w Fk(IsEnabled)p 1450 3106 V 83 |
| w Fb(F)m(alse)p 1609 3106 V 58 w Fm(Normal)d(arra)o(y)i(enable)p |
| 2409 3106 V 436 w(2.8)p 2531 3106 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3106 V 383 3108 2420 2 v 382 3158 2 50 v 519 3143 |
| a Fe(NORMAL)p 656 3143 10 2 v 12 w(ARRA)n(Y)p 776 3143 |
| V 11 w(TYPE)p 992 3158 2 50 v 1000 3158 V 180 w Fh(Z)1077 |
| 3149 y Fd(5)p 1143 3158 V 1171 3143 a Fk(GetIn)o(tegerv)p |
| 1450 3158 V 50 w Fr(FLOAT)p 1609 3158 V 49 w Fm(T)o(yp)q(e)g(of)g |
| (normal)d(co)q(ordinates)p 2409 3158 V 308 w(2.8)p 2531 |
| 3158 V 58 w(v)o(ertex-arra)o(y)p 2801 3158 V 383 3159 |
| 2420 2 v 382 3209 2 50 v 504 3194 a Fe(NORMAL)p 641 3194 |
| 10 2 v 12 w(ARRA)n(Y)p 761 3194 V 11 w(STRIDE)p 992 3209 |
| 2 50 v 1000 3209 V 158 w Fh(Z)1074 3179 y Fd(+)p 1143 |
| 3209 V 1171 3194 a Fk(GetIn)o(tegerv)p 1450 3209 V 94 |
| w Fm(0)p 1609 3209 V 94 w(Stride)k(b)q(et)o(w)o(een)g(normals)p |
| 2409 3209 V 381 w(2.8)p 2531 3209 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3209 V 383 3211 2420 2 v 382 3261 2 50 v 491 3246 |
| a Fe(NORMAL)p 628 3246 10 2 v 12 w(ARRA)n(Y)p 748 3246 |
| V 11 w(POINTER)p 992 3261 2 50 v 1000 3261 V 159 w Fh(Y)p |
| 1143 3261 V 89 w Fk(GetP)o(oin)o(t)o(erv)p 1450 3261 |
| V 91 w Fm(0)p 1609 3261 V 94 w(P)o(oin)o(ter)f(to)g(the)g(normal)e |
| (arra)o(y)p 2409 3261 V 305 w(2.8)p 2531 3261 V 58 w(v)o(ertex-arra)o |
| (y)p 2801 3261 V 383 3262 2420 2 v 382 3312 2 50 v 580 |
| 3297 a Fe(COLOR)p 691 3297 10 2 v 11 w(ARRA)n(Y)p 992 |
| 3312 2 50 v 1000 3312 V 248 w Fh(B)p 1143 3312 V 107 |
| w Fk(IsEnabled)p 1450 3312 V 83 w Fb(F)m(alse)p 1609 |
| 3312 V 58 w Fm(Color)h(arra)o(y)h(enable)p 2409 3312 |
| V 472 w(2.8)p 2531 3312 V 58 w(v)o(ertex-arra)o(y)p 2801 |
| 3312 V 383 3314 2420 2 v 382 3364 2 50 v 542 3349 a Fe(COLOR)p |
| 653 3349 10 2 v 11 w(ARRA)n(Y)p 772 3349 V 11 w(SIZE)p |
| 992 3364 2 50 v 1000 3364 V 196 w Fh(Z)1074 3334 y Fd(+)p |
| 1143 3364 V 1171 3349 a Fk(GetIn)o(tegerv)p 1450 3364 |
| V 94 w Fm(4)p 1609 3364 V 94 w(Colors)g(p)q(er)g(v)o(ertex)p |
| 2409 3364 V 496 w(2.8)p 2531 3364 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3364 V 383 3365 2420 2 v 382 3415 2 50 v 532 3400 |
| a Fe(COLOR)p 643 3400 10 2 v 11 w(ARRA)n(Y)p 762 3400 |
| V 12 w(TYPE)p 992 3415 2 50 v 1000 3415 V 193 w Fh(Z)1077 |
| 3406 y Fd(8)p 1143 3415 V 1171 3400 a Fk(GetIn)o(tegerv)p |
| 1450 3415 V 50 w Fr(FLOAT)p 1609 3415 V 49 w Fm(T)o(yp)q(e)g(of)g |
| (color)f(comp)q(onen)o(ts)p 2409 3415 V 338 w(2.8)p 2531 |
| 3415 V 58 w(v)o(ertex-arra)o(y)p 2801 3415 V 383 3417 |
| 2420 2 v 382 3467 2 50 v 517 3452 a Fe(COLOR)p 628 3452 |
| 10 2 v 11 w(ARRA)n(Y)p 747 3452 V 12 w(STRIDE)p 992 3467 |
| 2 50 v 1000 3467 V 171 w Fh(Z)1074 3437 y Fd(+)p 1143 |
| 3467 V 1171 3452 a Fk(GetIn)o(tegerv)p 1450 3467 V 94 |
| w Fm(0)p 1609 3467 V 94 w(Stride)i(b)q(et)o(w)o(een)g(colors)p |
| 2409 3467 V 422 w(2.8)p 2531 3467 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3467 V 383 3468 2420 2 v 382 3518 2 50 v 504 3503 |
| a Fe(COLOR)p 615 3503 10 2 v 11 w(ARRA)n(Y)p 734 3503 |
| V 12 w(POINTER)p 992 3518 2 50 v 1000 3518 V 172 w Fh(Y)p |
| 1143 3518 V 89 w Fk(GetP)o(oin)o(t)o(erv)p 1450 3518 |
| V 91 w Fm(0)p 1609 3518 V 94 w(P)o(oin)o(ter)f(to)g(the)g(color)g(arra) |
| o(y)p 2409 3518 V 344 w(2.8)p 2531 3518 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3518 V 383 3520 2420 2 v 382 3570 2 50 v 585 3555 |
| a Fe(INDEX)p 685 3555 10 2 v 12 w(ARRA)n(Y)p 992 3570 |
| 2 50 v 1000 3570 V 253 w Fh(B)p 1143 3570 V 107 w Fk(IsEnabled)p |
| 1450 3570 V 83 w Fb(F)m(alse)p 1609 3570 V 58 w Fm(Index)h(arra)o(y)e |
| (enable)p 2409 3570 V 470 w(2.8)p 2531 3570 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3570 V 383 3571 2420 2 v 382 3621 2 50 v 538 3606 |
| a Fe(INDEX)p 638 3606 10 2 v 11 w(ARRA)n(Y)p 757 3606 |
| V 12 w(TYPE)p 992 3621 2 50 v 1000 3621 V 198 w Fh(Z)1077 |
| 3612 y Fd(4)p 1143 3621 V 1171 3606 a Fk(GetIn)o(tegerv)p |
| 1450 3621 V 50 w Fr(FLOAT)p 1609 3621 V 49 w Fm(T)o(yp)q(e)h(of)g |
| (indices)p 2409 3621 V 532 w(2.8)p 2531 3621 V 58 w(v)o(ertex-arra)o(y) |
| p 2801 3621 V 383 3623 2420 2 v 382 3673 2 50 v 523 3658 |
| a Fe(INDEX)p 623 3658 10 2 v 11 w(ARRA)n(Y)p 742 3658 |
| V 12 w(STRIDE)p 992 3673 2 50 v 1000 3673 V 176 w Fh(Z)1074 |
| 3643 y Fd(+)p 1143 3673 V 1171 3658 a Fk(GetIn)o(tegerv)p |
| 1450 3673 V 94 w Fm(0)p 1609 3673 V 94 w(Stride)h(b)q(et)o(w)o(een)g |
| (indices)p 2409 3673 V 404 w(2.8)p 2531 3673 V 58 w(v)o(ertex-arra)o(y) |
| p 2801 3673 V 383 3674 2420 2 v 382 3724 2 50 v 509 3709 |
| a Fe(INDEX)p 609 3709 10 2 v 12 w(ARRA)n(Y)p 729 3709 |
| V 12 w(POINTER)p 992 3724 2 50 v 1000 3724 V 177 w Fh(Y)p |
| 1143 3724 V 89 w Fk(GetP)o(oin)o(t)o(erv)p 1450 3724 |
| V 91 w Fm(0)p 1609 3724 V 94 w(P)o(oin)o(ter)f(to)g(the)g(index)g(arra) |
| o(y)p 2409 3724 V 334 w(2.8)p 2531 3724 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3724 V 383 3726 2420 2 v 382 3776 2 50 v 497 3761 |
| a Fe(TEXTURE)p 649 3761 10 2 v 12 w(COORD)p 774 3761 |
| V 11 w(ARRA)n(Y)p 992 3776 2 50 v 1000 3776 V 165 w Fh(B)p |
| 1143 3776 V 107 w Fk(IsEnabled)p 1450 3776 V 83 w Fb(F)m(alse)p |
| 1609 3776 V 58 w Fm(T)m(exture)h(co)q(ordinate)f(arra)o(y)g(enable)p |
| 2409 3776 V 226 w(2.8)p 2531 3776 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3776 V 383 3777 2420 2 v 382 3827 2 50 v 459 3812 |
| a Fe(TEXTURE)p 611 3812 10 2 v 11 w(COORD)p 735 3812 |
| V 11 w(ARRA)n(Y)p 854 3812 V 12 w(SIZE)p 992 3827 2 50 |
| v 1000 3827 V 113 w Fh(Z)1074 3797 y Fd(+)p 1143 3827 |
| V 1171 3812 a Fk(GetIn)o(tegerv)p 1450 3827 V 94 w Fm(4)p |
| 1609 3827 V 94 w(Co)q(ordinates)g(p)q(er)h(elemen)o(t)p |
| 2409 3827 V 364 w(2.8)p 2531 3827 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3827 V 383 3829 2420 2 v 382 3878 2 50 v 450 3864 |
| a Fe(TEXTURE)p 602 3864 10 2 v 11 w(COORD)p 726 3864 |
| V 11 w(ARRA)n(Y)p 845 3864 V 12 w(TYPE)p 992 3878 2 50 |
| v 1000 3878 V 110 w Fh(Z)1077 3870 y Fd(4)p 1143 3878 |
| V 1171 3864 a Fk(GetIn)o(tegerv)p 1450 3878 V 50 w Fr(FLOAT)p |
| 1609 3878 V 49 w Fm(T)o(yp)q(e)f(of)g(texture)h(co)q(ordinates)p |
| 2409 3878 V 304 w(2.8)p 2531 3878 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3878 V 383 3880 2420 2 v 382 3930 2 50 v 435 3915 |
| a Fe(TEXTURE)p 587 3915 10 2 v 11 w(COORD)p 711 3915 |
| V 11 w(ARRA)n(Y)p 830 3915 V 12 w(STRIDE)p 992 3930 2 |
| 50 v 1000 3930 V 88 w Fh(Z)1074 3900 y Fd(+)p 1143 3930 |
| V 1171 3915 a Fk(GetIn)o(tegerv)p 1450 3930 V 94 w Fm(0)p |
| 1609 3930 V 94 w(Stride)g(b)q(et)o(w)o(een)g(texture)g(co)q(ordinates)p |
| 2409 3930 V 176 w(2.8)p 2531 3930 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 3930 V 383 3932 2420 2 v 382 3981 2 50 v 421 3966 |
| a Fe(TEXTURE)p 573 3966 10 2 v 12 w(COORD)p 698 3966 |
| V 11 w(ARRA)n(Y)p 817 3966 V 12 w(POINTER)p 992 3981 |
| 2 50 v 1000 3981 V 89 w Fh(Y)p 1143 3981 V 89 w Fk(GetP)o(oin)o(t)o |
| (erv)p 1450 3981 V 91 w Fm(0)p 1609 3981 V 94 w(P)o(oin)o(ter)f(to)g |
| (the)g(texture)i(co)q(ordinate)e(arra)o(y)p 2409 3981 |
| V 97 w(2.8)p 2531 3981 V 58 w(v)o(ertex-arra)o(y)p 2801 |
| 3981 V 383 3983 2420 2 v 382 4033 2 50 v 544 4018 a Fe(EDGE)p |
| 632 4018 10 2 v 12 w(FLA)o(G)p 727 4018 V 11 w(ARRA)n(Y)p |
| 992 4033 2 50 v 1000 4033 V 212 w Fh(B)p 1143 4033 V |
| 107 w Fk(IsEnabled)p 1450 4033 V 83 w Fb(F)m(alse)p 1609 |
| 4033 V 58 w Fm(Edge)h(\015ag)e(arra)o(y)h(enable)p 2409 |
| 4033 V 402 w(2.8)p 2531 4033 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 4033 V 383 4035 2420 2 v 382 4084 2 50 v 481 4069 |
| a Fe(EDGE)p 569 4069 10 2 v 12 w(FLA)o(G)p 664 4069 V |
| 12 w(ARRA)n(Y)p 784 4069 V 11 w(STRIDE)p 992 4084 2 50 |
| v 1000 4084 V 135 w Fh(Z)1074 4054 y Fd(+)p 1143 4084 |
| V 1171 4069 a Fk(GetIn)o(tegerv)p 1450 4084 V 94 w Fm(0)p |
| 1609 4084 V 94 w(Stride)h(b)q(et)o(w)o(een)g(edge)f(\015ags)p |
| 2409 4084 V 351 w(2.8)p 2531 4084 V 58 w(v)o(ertex-arra)o(y)p |
| 2801 4084 V 383 4086 2420 2 v 382 4136 2 50 v 468 4121 |
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| 4136 V 58 w(v)o(ertex-arra)o(y)p 2801 4136 V 383 4137 |
| 2420 2 v 1790 2717 a |
| currentpoint grestore moveto |
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| %%Page: 155 164 |
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| y(V)m(alue)207 b(Description)174 b(Sec.)139 b(A)o(ttribute)p |
| 282 2680 2301 2 v 281 2780 2 100 v 373 2715 a Fe(MODEL)m(VIEW)p |
| 567 2715 10 2 v 12 w(MA)n(TRIX)p 778 2780 2 100 v 786 |
| 2780 V 111 w Fm(32)9 b Fc(\003)g(\002)p Fh(M)c Fm(4)p |
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| y(stac)o(k)p 2063 2780 V 2089 2715 a(2.10.2)p 2219 2780 |
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| w(MA)n(TRIX)p 778 2881 2 100 v 786 2881 V 117 w Fm(2)c |
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| 1347 2881 V 110 w Fm(Iden)o(tit)o(y)p 1593 2881 V 76 |
| w(Pro)r(jection)14 b(matrix)1619 2866 y(stac)o(k)p 2063 |
| 2881 V 2089 2816 a(2.10.2)p 2219 2881 V 194 w({)p 2582 |
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| 2933 V 142 w Fm(2)9 b Fc(\003)g(\002)p Fh(M)c Fm(4)p |
| 1014 2933 V 96 w Fk(GetFloatv)p 1347 2933 V 110 w Fm(Iden)o(tit)o(y)p |
| 1593 2933 V 76 w(T)m(exture)15 b(matrix)d(stac)o(k)p |
| 2063 2933 V 88 w(2.10.2)p 2219 2933 V 194 w({)p 2582 |
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| Fh(Z)p 1014 3034 V 107 w Fk(GetIn)o(tegerv)p 1347 3034 |
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| 1619 3019 y(exten)o(t)p 2063 3034 V 2089 2969 a(2.10.1)p |
| 2219 3034 V 124 w(viewp)q(ort)p 2582 3034 V 282 3036 |
| 2301 2 v 281 3135 2 100 v 423 3071 a Fe(DEPTH)p 532 3071 |
| 10 2 v 11 w(RANGE)p 778 3135 2 100 v 786 3135 V 186 w |
| Fm(2)c Fc(\002)g Fh(R)939 3055 y Fd(+)p 1014 3135 V 1076 |
| 3071 a Fk(GetFloatv)p 1347 3135 V 155 w Fm(0,1)p 1593 |
| 3135 V 120 w(Depth)14 b(range)g(near)h(&)1619 3120 y(far)p |
| 2063 3135 V 2089 3071 a(2.10.1)p 2219 3135 V 124 w(viewp)q(ort)p |
| 2582 3135 V 282 3137 2301 2 v 281 3237 2 100 v 325 3172 |
| a Fe(MODEL)m(VIEW)p 519 3172 10 2 v 12 w(ST)n(A)o(CK)p |
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| 523 3273 10 2 v 12 w(ST)n(A)o(CK)p 638 3273 V 10 w(DEPTH)p |
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| V 150 w Fm(1)p 1593 3338 V 137 w(Pro)r(jection)g(matrix)1619 |
| 3323 y(stac)o(k)g(p)q(oin)o(ter)p 2063 3338 V 2089 3273 |
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| 3374 10 2 v 12 w(ST)n(A)o(CK)p 613 3374 V 10 w(DEPTH)p |
| 778 3439 2 100 v 786 3439 V 144 w Fh(Z)903 3359 y Fd(+)p |
| 1014 3439 V 1056 3374 a Fk(GetIn)o(tegerv)p 1347 3439 |
| V 150 w Fm(1)p 1593 3439 V 137 w(T)m(exture)h(matrix)d(stac)o(k)1619 |
| 3424 y(p)q(oin)o(ter)p 2063 3439 V 2089 3374 a(2.10.2)p |
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| 11 w(MODE)p 778 3491 2 50 v 786 3491 V 227 w Fh(Z)906 |
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| (matrix)d(mo)q(de)p 2063 3491 V 80 w(2.10.2)p 2219 3491 |
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| 3592 2 100 v 444 3527 a Fe(NORMALIZE)p 778 3592 V 786 |
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| 1347 3592 V 138 w Fb(F)m(alse)p 1593 3592 V 102 w Fm(Curren)o(t)j |
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| 2 100 v 786 3693 V 195 w Fm(6)e Fc(\003)g(\002)p Fh(R)954 |
| 3613 y Fd(4)p 1014 3693 V 1040 3628 a Fk(GetClipPlan)o(e)p |
| 1347 3693 V 86 w Fm(0,0,0,0)p 1593 3693 V 87 w(User)15 |
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| 2063 3693 V 2105 3628 a(2.11)p 2219 3693 V 133 w(transform)p |
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| 2 v 1467 2598 a |
| currentpoint grestore moveto |
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| b(T)l(ransformation)16 b(state)p eop |
| %%Page: 156 165 |
| 156 164 bop 332 137 a FC(156)417 b Fx(CHAPTER)16 b(6.)34 |
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| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 807 2204 a 884 2270 a Fm(Get)f(v)n(alue)87 b(T)o(yp)q(e)1360 |
| 2233 y(Get)1360 2270 y(Cmnd)1602 2233 y(Initial)1602 |
| 2270 y(V)m(alue)174 b(Description)g(Sec.)77 b(A)o(ttribute)p |
| 821 2287 1792 2 v 820 2337 2 50 v 881 2322 a Fe(F)o(OG)p |
| 948 2322 10 2 v 12 w(COLOR)p 1112 2337 2 50 v 1120 2337 |
| V 109 w Fh(C)p 1263 2337 V 103 w Fk(GetFloatv)p 1566 |
| 2337 V 75 w Fm(0,0,0,0)p 1746 2337 V 54 w(F)m(og)13 b(color)p |
| 2216 2337 V 329 w(3.9)p 2372 2337 V 144 w(fog)p 2612 |
| 2337 V 821 2338 1792 2 v 820 2388 2 50 v 886 2373 a Fe(F)o(OG)p |
| 953 2373 10 2 v 12 w(INDEX)p 1112 2388 2 50 v 1120 2388 |
| V 121 w Fh(I)p 1263 2388 V 109 w Fk(GetFloatv)p 1566 |
| 2388 V 123 w Fm(0)p 1746 2388 V 105 w(F)m(og)g(index)p |
| 2216 2388 V 319 w(3.9)p 2372 2388 V 144 w(fog)p 2612 |
| 2388 V 821 2390 1792 2 v 820 2489 2 100 v 867 2425 a |
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| 2 100 v 1120 2489 V 97 w Fh(R)p 1263 2489 V 100 w Fk(GetFloatv)p |
| 1566 2489 V 107 w Fm(1.0)p 1746 2489 V 88 w(Exp)q(onen)o(tial)g(fog) |
| 1772 2474 y(densit)o(y)p 2216 2489 V 2268 2425 a(3.9)p |
| 2372 2489 V 144 w(fog)p 2612 2489 V 821 2491 1792 2 v |
| 820 2541 2 50 v 886 2526 a Fe(F)o(OG)p 953 2526 10 2 |
| v 11 w(ST)n(AR)n(T)p 1112 2541 2 50 v 1120 2541 V 114 |
| w Fh(R)p 1263 2541 V 100 w Fk(GetFloatv)p 1566 2541 V |
| 107 w Fm(0.0)p 1746 2541 V 88 w(Linear)h(fog)f(start)p |
| 2216 2541 V 213 w(3.9)p 2372 2541 V 144 w(fog)p 2612 |
| 2541 V 821 2543 1792 2 v 820 2592 2 50 v 903 2577 a Fe(F)o(OG)p |
| 970 2577 10 2 v 11 w(END)p 1112 2592 2 50 v 1120 2592 |
| V 133 w Fh(R)p 1263 2592 V 100 w Fk(GetFloatv)p 1566 |
| 2592 V 107 w Fm(1.0)p 1746 2592 V 88 w(Linear)h(fog)f(end)p |
| 2216 2592 V 234 w(3.9)p 2372 2592 V 144 w(fog)p 2612 |
| 2592 V 821 2594 1792 2 v 820 2644 2 50 v 889 2629 a Fe(F)o(OG)p |
| 956 2629 10 2 v 11 w(MODE)p 1112 2644 2 50 v 1120 2644 |
| V 111 w Fh(Z)1197 2635 y Fd(3)p 1263 2644 V 1289 2629 |
| a Fk(GetIn)o(tegerv)p 1566 2644 V 80 w Fr(EXP)p 1746 |
| 2644 V 82 w Fm(F)m(og)g(mo)q(de)p 2216 2644 V 318 w(3.9)p |
| 2372 2644 V 144 w(fog)p 2612 2644 V 821 2645 1792 2 v |
| 820 2695 2 50 v 941 2680 a Fe(F)o(OG)p 1112 2695 V 1120 |
| 2695 V 170 w Fh(B)p 1263 2695 V 105 w Fk(IsEnabled)p |
| 1566 2695 V 91 w Fb(F)m(alse)p 1746 2695 V 69 w Fm(T)m(rue)h(if)f(fog)g |
| (enabled)p 2216 2695 V 154 w(3.9)p 2372 2695 V 76 w(fog/enable)p |
| 2612 2695 V 821 2697 1792 2 v 820 2747 2 50 v 860 2732 |
| a Fe(SHADE)p 966 2732 10 2 v 11 w(MODEL)p 1112 2747 2 |
| 50 v 1120 2747 V 76 w Fh(Z)1194 2717 y Fd(+)p 1263 2747 |
| V 1289 2732 a Fk(GetIn)o(tegerv)p 1566 2747 V 47 w Fr(SMOOTH)p |
| 1746 2747 V 49 w Fk(ShadeMo)q(del)f Fm(setting)p 2216 |
| 2747 V 77 w(2.13.7)p 2372 2747 V 74 w(ligh)o(ting)p 2612 |
| 2747 V 821 2748 1792 2 v 1351 2204 a |
| currentpoint grestore moveto |
| 1351 2204 a 873 |
| 2363 a FF(T)l(able)k(6.8.)21 b(Coloring)p eop |
| %%Page: 157 166 |
| 157 165 bop 1547 137 a FC(157)-90 2831 y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| -90 2831 a 118 |
| 2897 a Fm(Get)14 b(v)n(alue)259 b(T)o(yp)q(e)828 2860 |
| y(Get)828 2897 y(Cmnd)1228 2860 y(Initial)1228 2897 y(V)m(alue)309 |
| b(Description)174 b(Sec.)119 b(A)o(ttribute)p -76 2913 |
| 2534 2 v -77 3013 2 100 v 131 2948 a Fe(LIGHTING)p 477 |
| 3013 V 485 3013 V 297 w Fh(B)p 710 3013 V 168 w Fk(IsEnabled)p |
| 1056 3013 V 248 w Fb(F)m(alse)p 1507 3013 V 205 w Fm(T)m(rue)14 |
| b(if)f(ligh)o(ting)f(is)1533 2998 y(enabled)p 1977 3013 |
| V 2003 2948 a(2.13.1)p 2133 3013 V 48 w(ligh)o(ting/enable)p |
| 2456 3013 V -76 3015 2534 2 v -77 3114 2 100 v 66 3050 |
| a Fe(COLOR)p 177 3050 10 2 v 11 w(MA)n(TERIAL)p 477 3114 |
| 2 100 v 485 3114 V 232 w Fh(B)p 710 3114 V 168 w Fk(IsEnabled)p |
| 1056 3114 V 248 w Fb(F)m(alse)p 1507 3114 V 205 w Fm(T)m(rue)i(if)f |
| (color)h(trac)o(king)1533 3099 y(is)g(enabled)p 1977 |
| 3114 V 2003 3050 a(2.13.3)p 2133 3114 V 48 w(ligh)o(ting/enable)p |
| 2456 3114 V -76 3116 2534 2 v -77 3216 2 100 v -38 3151 |
| a Fe(COLOR)p 73 3151 10 2 v 11 w(MA)n(TERIAL)p 247 3151 |
| V 12 w(P)n(ARAMETER)p 477 3216 2 100 v 485 3216 V 123 |
| w Fh(Z)603 3157 y Fd(5)p 710 3216 V 757 3151 a Fk(GetIn)o(tegerv)p |
| 1056 3216 V 69 w Fr(AMBIENT)p 1238 3151 14 2 v 15 w(AND)p |
| 1319 3151 V 15 w(DIFFUSE)p 1507 3216 2 100 v 48 w Fm(Material)f(prop)q |
| (erties)1533 3201 y(trac)o(king)h(curren)o(t)h(color)p |
| 1977 3216 V 2003 3151 a(2.13.3)p 2133 3216 V 116 w(ligh)o(ting)p |
| 2456 3216 V -76 3217 2534 2 v -77 3317 2 100 v 20 3252 |
| a Fe(COLOR)p 131 3252 10 2 v 11 w(MA)n(TERIAL)p 305 3252 |
| V 12 w(F)m(A)o(CE)p 477 3317 2 100 v 485 3317 V 180 w |
| Fh(Z)603 3258 y Fd(3)p 710 3317 V 757 3252 a Fk(GetIn)o(tegerv)p |
| 1056 3317 V 124 w Fr(FRONT)p 1249 3252 14 2 v 15 w(AND)p |
| 1330 3252 V 15 w(BACK)p 1507 3317 2 100 v 103 w Fm(F)m(ace\(s\))g |
| (a\013ected)g(b)o(y)1533 3302 y(color)f(trac)o(king)p |
| 1977 3317 V 2003 3252 a(2.13.3)p 2133 3317 V 116 w(ligh)o(ting)p |
| 2456 3317 V -76 3319 2534 2 v -77 3368 2 50 v 134 3353 |
| a Fe(AMBIENT)p 477 3368 V 485 3368 V 267 w Fm(2)9 b Fc(\002)h |
| Fh(C)p 710 3368 V 88 w Fk(GetMaterialf)o(v)p 1056 3368 |
| V 109 w Fm(\(0.2,0.2,0.)o(2,1)o(.0\))p 1507 3368 V 108 |
| w(Am)o(bien)o(t)i(material)f(color)p 1977 3368 V 50 w(2.13.1)p |
| 2133 3368 V 116 w(ligh)o(ting)p 2456 3368 V -76 3370 |
| 2534 2 v -77 3420 2 50 v 141 3405 a Fe(DIFFUSE)p 477 |
| 3420 V 485 3420 V 272 w Fm(2)e Fc(\002)h Fh(C)p 710 3420 |
| V 88 w Fk(GetMaterialf)o(v)p 1056 3420 V 109 w Fm(\(0.8,0.8,0.)o(8,1)o |
| (.0\))p 1507 3420 V 108 w(Di\013use)k(material)e(color)p |
| 1977 3420 V 79 w(2.13.1)p 2133 3420 V 116 w(ligh)o(ting)p |
| 2456 3420 V -76 3422 2534 2 v -77 3471 2 50 v 125 3456 |
| a Fe(SPECULAR)p 477 3471 V 485 3471 V 257 w Fm(2)d Fc(\002)h |
| Fh(C)p 710 3471 V 88 w Fk(GetMaterialf)o(v)p 1056 3471 |
| V 109 w Fm(\(0.0,0.0,0.)o(0,1)o(.0\))p 1507 3471 V 108 |
| w(Sp)q(ecular)k(material)d(color)p 1977 3471 V 50 w(2.13.1)p |
| 2133 3471 V 116 w(ligh)o(ting)p 2456 3471 V -76 3473 |
| 2534 2 v -77 3523 2 50 v 133 3508 a Fe(EMISSION)p 477 |
| 3523 V 485 3523 V 265 w Fm(2)e Fc(\002)h Fh(C)p 710 3523 |
| V 88 w Fk(GetMaterialf)o(v)p 1056 3523 V 109 w Fm(\(0.0,0.0,0.)o(0,1)o |
| (.0\))p 1507 3523 V 108 w(Emissiv)o(e)j(mat.)j(color)p |
| 1977 3523 V 109 w(2.13.1)p 2133 3523 V 116 w(ligh)o(ting)p |
| 2456 3523 V -76 3525 2534 2 v -77 3624 2 100 v 128 3559 |
| a Fe(SHININESS)p 477 3624 V 485 3624 V 260 w Fm(2)9 b |
| Fc(\002)g Fh(R)p 710 3624 V 86 w Fk(GetMaterialf)o(v)p |
| 1056 3624 V 222 w Fm(0.0)p 1507 3624 V 223 w(Sp)q(ecular)15 |
| b(exp)q(onen)o(t)f(of)1533 3609 y(material)p 1977 3624 |
| V 2003 3559 a(2.13.1)p 2133 3624 V 116 w(ligh)o(ting)p |
| 2456 3624 V -76 3626 2534 2 v -77 3676 2 50 v 19 3661 |
| a Fe(LIGHT)p 118 3661 10 2 v 11 w(MODEL)p 241 3661 V |
| 11 w(AMBIENT)p 477 3676 2 50 v 485 3676 V 187 w Fh(C)p |
| 710 3676 V 166 w Fk(GetFloatv)p 1056 3676 V 151 w Fm(\(0.2,0.2,0.)o |
| (2,1)o(.0\))p 1507 3676 V 108 w(Am)o(bien)o(t)f(scene)i(color)p |
| 1977 3676 V 104 w(2.13.1)p 2133 3676 V 116 w(ligh)o(ting)p |
| 2456 3676 V -76 3677 2534 2 v -77 3727 2 50 v -29 3712 |
| a Fe(LIGHT)p 70 3712 10 2 v 11 w(MODEL)p 193 3712 V 11 |
| w(LOCAL)p 309 3712 V 11 w(VIEWER)p 477 3727 2 50 v 485 |
| 3727 V 138 w Fh(B)p 710 3727 V 137 w Fk(GetBo)q(olean)o(v)p |
| 1056 3727 V 215 w Fb(F)m(alse)p 1507 3727 V 205 w Fm(View)o(er)g(is)e |
| (lo)q(cal)p 1977 3727 V 205 w(2.13.1)p 2133 3727 V 116 |
| w(ligh)o(ting)p 2456 3727 V -76 3729 2534 2 v -77 3779 |
| 2 50 v 13 3764 a Fe(LIGHT)p 112 3764 10 2 v 12 w(MODEL)p |
| 236 3764 V 11 w(TW)o(O)p 321 3764 V 12 w(SIDE)p 477 3779 |
| 2 50 v 485 3779 V 179 w Fh(B)p 710 3779 V 137 w Fk(GetBo)q(olean)o(v)p |
| 1056 3779 V 215 w Fb(F)m(alse)p 1507 3779 V 205 w Fm(Use)i(t)o(w)o |
| (o-sided)f(ligh)o(ting)p 1977 3779 V 66 w(2.13.1)p 2133 |
| 3779 V 116 w(ligh)o(ting)p 2456 3779 V -76 3780 2534 |
| 2 v -77 3880 2 100 v 134 3815 a Fe(AMBIENT)p 477 3880 |
| V 485 3880 V 257 w Fm(8)9 b Fc(\003)g(\002)p Fh(C)p 710 |
| 3880 V 112 w Fk(GetLigh)o(t)o(fv)p 1056 3880 V 143 w |
| Fm(\(0.0,0.0,0.)o(0,1)o(.0\))p 1507 3880 V 108 w(Am)o(bien)o(t)k(in)o |
| (tensit)o(y)g(of)1533 3865 y(ligh)o(t)g Fh(i)p 1977 3880 |
| V 2003 3815 a Fm(2.13.1)p 2133 3880 V 116 w(ligh)o(ting)p |
| 2456 3880 V -76 3882 2534 2 v -77 3981 2 100 v 141 3916 |
| a Fe(DIFFUSE)p 477 3981 V 485 3981 V 262 w Fm(8)c Fc(\003)g(\002)p |
| Fh(C)p 710 3981 V 112 w Fk(GetLigh)o(t)o(fv)p 1056 3981 |
| V 222 w Fm(see)15 b(2.5)p 1507 3981 V 190 w(Di\013use)f(in)o(tensit)o |
| (y)g(of)1533 3966 y(ligh)o(t)f Fh(i)p 1977 3981 V 2003 |
| 3916 a Fm(2.13.1)p 2133 3981 V 116 w(ligh)o(ting)p 2456 |
| 3981 V -76 3983 2534 2 v -77 4082 2 100 v 125 4018 a |
| Fe(SPECULAR)p 477 4082 V 485 4082 V 247 w Fm(8)c Fc(\003)g(\002)p |
| Fh(C)p 710 4082 V 112 w Fk(GetLigh)o(t)o(fv)p 1056 4082 |
| V 222 w Fm(see)15 b(2.5)p 1507 4082 V 190 w(Sp)q(ecular)g(in)o(tensit)o |
| (y)e(of)1533 4067 y(ligh)o(t)g Fh(i)p 1977 4082 V 2003 |
| 4018 a Fm(2.13.1)p 2133 4082 V 116 w(ligh)o(ting)p 2456 |
| 4082 V -76 4084 2534 2 v -77 4134 2 50 v 133 4119 a Fe(POSITION)p |
| 477 4134 V 485 4134 V 254 w Fm(8)c Fc(\003)g(\002)p Fh(P)p |
| 710 4134 V 115 w Fk(GetLigh)o(t)o(fv)p 1056 4134 V 143 |
| w Fm(\(0.0,0.0,1.)o(0,0)o(.0\))p 1507 4134 V 108 w(P)o(osition)k(of)g |
| (ligh)o(t)g Fh(i)p 1977 4134 V 152 w Fm(2.13.1)p 2133 |
| 4134 V 116 w(ligh)o(ting)p 2456 4134 V -76 4136 2534 |
| 2 v -77 4185 2 50 v 4 4170 a Fe(CONST)n(ANT)p 176 4170 |
| 10 2 v 11 w(A)n(TTENUA)n(TION)p 477 4185 2 50 v 485 4185 |
| V 111 w Fm(8)c Fc(\003)g(\002)p Fh(R)646 4155 y Fd(+)p |
| 710 4185 V 770 4170 a Fk(GetLigh)o(t)o(fv)p 1056 4185 |
| V 256 w Fm(1.0)p 1507 4185 V 223 w(Constan)o(t)14 b(atten.)19 |
| b(factor)p 1977 4185 V 61 w(2.13.1)p 2133 4185 V 116 |
| w(ligh)o(ting)p 2456 4185 V -76 4187 2534 2 v -77 4237 |
| 2 50 v 30 4222 a Fe(LINEAR)p 148 4222 10 2 v 12 w(A)n(TTENUA)n(TION)p |
| 477 4237 2 50 v 485 4237 V 138 w Fm(8)9 b Fc(\003)g(\002)p |
| Fh(R)646 4207 y Fd(+)p 710 4237 V 770 4222 a Fk(GetLigh)o(t)o(fv)p |
| 1056 4237 V 256 w Fm(0.0)p 1507 4237 V 223 w(Linear)14 |
| b(atten.)k(factor)p 1977 4237 V 111 w(2.13.1)p 2133 4237 |
| V 116 w(ligh)o(ting)p 2456 4237 V -76 4239 2534 2 v -77 |
| 4338 2 100 v -5 4273 a Fe(QUADRA)n(TIC)p 184 4273 10 |
| 2 v 11 w(A)n(TTENUA)n(TION)p 477 4338 2 100 v 485 4338 |
| V 103 w Fm(8)9 b Fc(\003)g(\002)p Fh(R)646 4258 y Fd(+)p |
| 710 4338 V 770 4273 a Fk(GetLigh)o(t)o(fv)p 1056 4338 |
| V 256 w Fm(0.0)p 1507 4338 V 223 w(Quadratic)14 b(atten.)1533 |
| 4323 y(factor)p 1977 4338 V 2003 4273 a(2.13.1)p 2133 |
| 4338 V 116 w(ligh)o(ting)p 2456 4338 V -76 4340 2534 |
| 2 v -77 4439 2 100 v 73 4375 a Fe(SPOT)p 157 4375 10 |
| 2 v 11 w(DIRECTION)p 477 4439 2 100 v 485 4439 V 192 |
| w Fm(8)9 b Fc(\003)g(\002)p Fh(D)p 710 4439 V 110 w Fk(GetLigh)o(t)o |
| (fv)p 1056 4439 V 168 w Fm(\(0.0,0.0,-1.0)o(\))p 1507 |
| 4439 V 134 w(Sp)q(otligh)o(t)k(direction)h(of)1533 4424 |
| y(ligh)o(t)f Fh(i)p 1977 4439 V 2003 4375 a Fm(2.13.1)p |
| 2133 4439 V 116 w(ligh)o(ting)p 2456 4439 V -76 4441 |
| 2534 2 v -77 4541 2 100 v 74 4476 a Fe(SPOT)p 158 4476 |
| 10 2 v 12 w(EXPONENT)p 477 4541 2 100 v 485 4541 V 183 |
| w Fm(8)c Fc(\003)g(\002)p Fh(R)646 4461 y Fd(+)p 710 |
| 4541 V 770 4476 a Fk(GetLigh)o(t)o(fv)p 1056 4541 V 256 |
| w Fm(0.0)p 1507 4541 V 223 w(Sp)q(otligh)o(t)k(exp)q(onen)o(t)i(of)1533 |
| 4526 y(ligh)o(t)e Fh(i)p 1977 4541 V 2003 4476 a Fm(2.13.1)p |
| 2133 4541 V 116 w(ligh)o(ting)p 2456 4541 V -76 4542 |
| 2534 2 v -77 4592 2 50 v 97 4577 a Fe(SPOT)p 181 4577 |
| 10 2 v 11 w(CUTOFF)p 477 4592 2 50 v 485 4592 V 203 w |
| Fm(8)c Fc(\003)g(\002)p Fh(R)646 4562 y Fd(+)p 710 4592 |
| V 770 4577 a Fk(GetLigh)o(t)o(fv)p 1056 4592 V 235 w |
| Fm(180.0)p 1507 4592 V 202 w(Sp)q(ot.)18 b(angle)c(of)f(ligh)o(t)g |
| Fh(i)p 1977 4592 V 90 w Fm(2.13.1)p 2133 4592 V 116 w(ligh)o(ting)p |
| 2456 4592 V -76 4594 2534 2 v -77 4644 2 50 v 153 4629 |
| a Fe(LIGHT)p Fg(i)p 477 4644 V 485 4644 V 274 w Fm(8)c |
| Fc(\003)g(\002)p Fh(B)p 710 4644 V 122 w Fk(IsEnabled)p |
| 1056 4644 V 248 w Fb(F)m(alse)p 1507 4644 V 205 w Fm(T)m(rue)14 |
| b(if)f(ligh)o(t)g Fh(i)h Fm(enabled)p 1977 4644 V 72 |
| w(2.13.1)p 2133 4644 V 48 w(ligh)o(ting/enable)p 2456 |
| 4644 V -76 4645 2534 2 v -77 4745 2 100 v 79 4680 a Fe(COLOR)p |
| 190 4680 10 2 v 11 w(INDEXES)p 477 4745 2 100 v 485 4745 |
| V 177 w Fm(2)9 b Fc(\002)g Fm(3)g Fc(\002)h Fh(R)p 710 |
| 4745 V 50 w Fk(GetMaterialf)o(v)p 1056 4745 V 206 w Fm(0,1,1)p |
| 1507 4745 V 206 w Fh(a)1555 4686 y Ff(m)1587 4680 y Fm(,)j |
| Fh(d)1634 4686 y Ff(m)1665 4680 y Fm(,)g(and)h Fh(s)1790 |
| 4686 y Ff(m)1836 4680 y Fm(for)1533 4730 y(color)g(index)g(ligh)o(ting) |
| p 1977 4745 V 2003 4680 a(2.13.1)p 2133 4745 V 116 w(ligh)o(ting)p |
| 2456 4745 V -76 4747 2534 2 v 1825 2831 a |
| currentpoint grestore moveto |
| 1825 2831 a |
| 320 2993 a FF(T)l(able)i(6.9.)22 b(Ligh)o(ting)16 b(\(see)g(also)h(T)l |
| (able)f(2.5)h(for)f(defaults\))p eop |
| %%Page: 158 167 |
| 158 166 bop 332 137 a FC(158)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)275 2494 |
| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 275 2494 a 448 2560 a Fm(Get)f(v)n(alue)196 b(T)o(yp)q(e)1116 |
| 2523 y(Get)1116 2560 y(Cmnd)1417 2523 y(Initial)1417 |
| 2560 y(V)m(alue)164 b(Description)f(Sec.)112 b(A)o(ttribute)p |
| 289 2577 2197 2 v 288 2627 2 50 v 450 2612 a Fe(POINT)p |
| 550 2612 10 2 v 12 w(SIZE)p 773 2627 2 50 v 781 2627 |
| V 210 w Fh(R)868 2597 y Fd(+)p 949 2627 V 1065 2612 a |
| Fk(GetFloatv)p 1392 2627 V 167 w Fm(1.0)p 1551 2627 V |
| 77 w(P)o(oin)o(t)13 b(size)p 2021 2627 V 311 w(3.3)p |
| 2156 2627 V 157 w(p)q(oin)o(t)p 2485 2627 V 289 2628 |
| 2197 2 v 288 2678 2 50 v 416 2663 a Fe(POINT)p 516 2663 |
| 10 2 v 12 w(SMOOTH)p 773 2678 2 50 v 781 2678 V 189 w |
| Fh(B)p 949 2678 V 188 w Fk(IsEnabled)p 1392 2678 V 150 |
| w Fb(F)m(alse)p 1551 2678 V 59 w Fm(P)o(oin)o(t)g(an)o(tialiasing)f(on) |
| p 2021 2678 V 110 w(3.3)p 2156 2678 V 89 w(p)q(oin)o(t/enable)p |
| 2485 2678 V 289 2680 2197 2 v 288 2730 2 50 v 442 2715 |
| a Fe(LINE)p 516 2715 10 2 v 12 w(WIDTH)p 773 2730 2 50 |
| v 781 2730 V 202 w Fh(R)868 2700 y Fd(+)p 949 2730 V |
| 1065 2715 a Fk(GetFloatv)p 1392 2730 V 167 w Fm(1.0)p |
| 1551 2730 V 77 w(Line)i(width)p 2021 2730 V 289 w(3.4)p |
| 2156 2730 V 172 w(line)p 2485 2730 V 289 2731 2197 2 |
| v 288 2781 2 50 v 429 2766 a Fe(LINE)p 503 2766 10 2 |
| v 12 w(SMOOTH)p 773 2781 2 50 v 781 2781 V 202 w Fh(B)p |
| 949 2781 V 188 w Fk(IsEnabled)p 1392 2781 V 150 w Fb(F)m(alse)p |
| 1551 2781 V 59 w Fm(Line)g(an)o(tialiasing)d(on)p 2021 |
| 2781 V 129 w(3.4)p 2156 2781 V 104 w(line/enable)p 2485 |
| 2781 V 289 2783 2197 2 v 288 2833 2 50 v 353 2818 a Fe(LINE)p |
| 427 2818 10 2 v 12 w(STIPPLE)p 568 2818 V 11 w(P)n(A)n(TTERN)p |
| 773 2833 2 50 v 781 2833 V 114 w Fh(Z)868 2803 y Fd(+)p |
| 949 2833 V 1045 2818 a Fk(GetIn)o(tegerv)p 1392 2833 |
| V 148 w Fm(1's)p 1551 2833 V 80 w(Line)j(stipple)p 2021 |
| 2833 V 257 w(3.4.2)p 2156 2833 V 155 w(line)p 2485 2833 |
| V 289 2834 2197 2 v 288 2884 2 50 v 364 2869 a Fe(LINE)p |
| 438 2869 10 2 v 11 w(STIPPLE)p 578 2869 V 12 w(REPEA)n(T)p |
| 773 2884 2 50 v 781 2884 V 125 w Fh(Z)868 2854 y Fd(+)p |
| 949 2884 V 1045 2869 a Fk(GetIn)o(tegerv)p 1392 2884 |
| V 162 w Fm(1)p 1551 2884 V 94 w(Line)g(stipple)g(rep)q(eat)p |
| 2021 2884 V 130 w(3.4.2)p 2156 2884 V 155 w(line)p 2485 |
| 2884 V 289 2886 2197 2 v 288 2936 2 50 v 432 2921 a Fe(LINE)p |
| 506 2921 10 2 v 11 w(STIPPLE)p 773 2936 2 50 v 781 2936 |
| V 205 w Fh(B)p 949 2936 V 188 w Fk(IsEnabled)p 1392 2936 |
| V 150 w Fb(F)m(alse)p 1551 2936 V 59 w Fm(Line)g(stipple)g(enable)p |
| 2021 2936 V 128 w(3.4.2)p 2156 2936 V 87 w(line/enable)p |
| 2485 2936 V 289 2937 2197 2 v 288 3037 2 100 v 452 2972 |
| a Fe(CULL)p 536 2972 10 2 v 11 w(F)m(A)o(CE)p 773 3037 |
| 2 100 v 781 3037 V 224 w Fh(B)p 949 3037 V 188 w Fk(IsEnabled)p |
| 1392 3037 V 150 w Fb(F)m(alse)p 1551 3037 V 59 w Fm(P)o(olygon)e |
| (culling)1577 3022 y(enabled)p 2021 3037 V 2047 2972 |
| a(3.5.1)p 2156 3037 V 48 w(p)q(olygon/enable)p 2485 3037 |
| V 289 3038 2197 2 v 288 3138 2 100 v 400 3073 a Fe(CULL)p |
| 484 3073 10 2 v 10 w(F)m(A)o(CE)p 574 3073 V 11 w(MODE)p |
| 773 3138 2 100 v 781 3138 V 167 w Fh(Z)871 3079 y Fd(3)p |
| 949 3138 V 1045 3073 a Fk(GetIn)o(tegerv)p 1392 3138 |
| V 129 w Fr(BACK)p 1551 3138 V 60 w Fm(Cull)h(fron)o(t/bac)o(k)g(facing) |
| 1577 3123 y(p)q(olygons)p 2021 3138 V 2047 3073 a(3.5.1)p |
| 2156 3138 V 116 w(p)q(olygon)p 2485 3138 V 289 3140 2197 |
| 2 v 288 3239 2 100 v 439 3175 a Fe(FR)o(ONT)p 549 3175 |
| 10 2 v 11 w(F)m(A)o(CE)p 773 3239 2 100 v 781 3239 V |
| 205 w Fh(Z)871 3181 y Fd(2)p 949 3239 V 1045 3175 a Fk(GetIn)o(tegerv)p |
| 1392 3239 V 139 w Fr(CCW)p 1551 3239 V 72 w Fm(P)o(olygon)f(fron)o |
| (tface)1577 3224 y(CW/CCW)h(indicator)p 2021 3239 V 2047 |
| 3175 a(3.5.1)p 2156 3239 V 116 w(p)q(olygon)p 2485 3239 |
| V 289 3241 2197 2 v 288 3341 2 100 v 390 3276 a Fe(POL)n(YGON)p |
| 542 3276 10 2 v 12 w(SMOOTH)p 773 3341 2 100 v 781 3341 |
| V 163 w Fh(B)p 949 3341 V 188 w Fk(IsEnabled)p 1392 3341 |
| V 150 w Fb(F)m(alse)p 1551 3341 V 59 w Fm(P)o(olygon)f(an)o(tialiasing) |
| 1577 3326 y(on)p 2021 3341 V 2063 3276 a(3.5)p 2156 3341 |
| V 65 w(p)q(olygon/enable)p 2485 3341 V 289 3342 2197 |
| 2 v 288 3442 2 100 v 410 3377 a Fe(POL)n(YGON)p 562 3377 |
| 10 2 v 13 w(MODE)p 773 3442 2 100 v 781 3442 V 141 w |
| Fm(2)d Fc(\002)g Fh(Z)906 3383 y Fd(3)p 949 3442 V 1045 |
| 3377 a Fk(GetIn)o(tegerv)p 1392 3442 V 129 w Fr(FILL)p |
| 1551 3442 V 60 w Fm(P)o(olygon)j(rasterization)1577 3427 |
| y(mo)q(de)h(\(fron)o(t)g(&)h(bac)o(k\))p 2021 3442 V |
| 2047 3377 a(3.5.4)p 2156 3442 V 116 w(p)q(olygon)p 2485 |
| 3442 V 289 3444 2197 2 v 288 3493 2 50 v 328 3478 a Fe(POL)n(YGON)p |
| 480 3478 10 2 v 12 w(OFFSET)p 614 3478 V 10 w(F)m(A)o(CTOR)p |
| 773 3493 2 50 v 781 3493 V 101 w Fh(R)p 949 3493 V 183 |
| w Fk(GetFloatv)p 1392 3493 V 183 w Fm(0)p 1551 3493 V |
| 94 w(P)o(olygon)e(o\013set)j(factor)p 2021 3493 V 96 |
| w(3.5.5)p 2156 3493 V 116 w(p)q(olygon)p 2485 3493 V |
| 289 3495 2197 2 v 288 3545 2 50 v 344 3530 a Fe(POL)n(YGON)p |
| 496 3530 10 2 v 12 w(OFFSET)p 630 3530 V 10 w(UNITS)p |
| 773 3545 2 50 v 781 3545 V 118 w Fh(R)p 949 3545 V 183 |
| w Fk(GetFloatv)p 1392 3545 V 183 w Fm(0)p 1551 3545 V |
| 94 w(P)o(olygon)d(o\013set)j(bias)p 2021 3545 V 129 w(3.5.5)p |
| 2156 3545 V 116 w(p)q(olygon)p 2485 3545 V 289 3547 2197 |
| 2 v 288 3696 2 150 v 342 3581 a Fe(POL)n(YGON)p 494 3581 |
| 10 2 v 12 w(OFFSET)p 628 3581 V 10 w(POINT)p 773 3696 |
| 2 150 v 781 3696 V 115 w Fh(B)p 949 3696 V 188 w Fk(IsEnabled)p |
| 1392 3696 V 150 w Fb(F)m(alse)p 1551 3696 V 59 w Fm(P)o(olygon)d |
| (o\013set)j(enable)1577 3631 y(for)e Fr(POINT)g Fm(mo)q(de)1577 |
| 3681 y(rasterization)p 2021 3696 V 2047 3581 a(3.5.5)p |
| 2156 3696 V 48 w(p)q(olygon/enable)p 2485 3696 V 289 |
| 3698 2197 2 v 288 3847 2 150 v 355 3733 a Fe(POL)n(YGON)p |
| 507 3733 10 2 v 12 w(OFFSET)p 641 3733 V 10 w(LINE)p |
| 773 3847 2 150 v 781 3847 V 128 w Fh(B)p 949 3847 V 188 |
| w Fk(IsEnabled)p 1392 3847 V 150 w Fb(F)m(alse)p 1551 |
| 3847 V 59 w Fm(P)o(olygon)f(o\013set)j(enable)1577 3782 |
| y(for)e Fr(LINE)g Fm(mo)q(de)1577 3832 y(rasterization)p |
| 2021 3847 V 2047 3733 a(3.5.5)p 2156 3847 V 48 w(p)q(olygon/enable)p |
| 2485 3847 V 289 3849 2197 2 v 288 3998 2 150 v 357 3884 |
| a Fe(POL)n(YGON)p 509 3884 10 2 v 12 w(OFFSET)p 643 3884 |
| V 10 w(FILL)p 773 3998 2 150 v 781 3998 V 129 w Fh(B)p |
| 949 3998 V 188 w Fk(IsEnabled)p 1392 3998 V 150 w Fb(F)m(alse)p |
| 1551 3998 V 59 w Fm(P)o(olygon)f(o\013set)j(enable)1577 |
| 3933 y(for)e Fr(FILL)g Fm(mo)q(de)1577 3983 y(rasterization)p |
| 2021 3998 V 2047 3884 a(3.5.5)p 2156 3998 V 48 w(p)q(olygon/enable)p |
| 2485 3998 V 289 4000 2197 2 v 288 4050 2 50 v 531 4035 |
| a Fe({)p 773 4050 V 781 4050 V 309 w Fh(I)p 949 4050 |
| V 102 w Fk(GetP)o(olygonSt)o(i)o(pp)o(le)p 1392 4050 |
| V 77 w Fm(1's)p 1551 4050 V 80 w(P)o(olygon)f(stipple)p |
| 2021 4050 V 207 w(3.5)p 2156 4050 V 66 w(p)q(olygon-stipple)p |
| 2485 4050 V 289 4051 2197 2 v 288 4101 2 50 v 392 4086 |
| a Fe(POL)n(YGON)p 544 4086 10 2 v 13 w(STIPPLE)p 773 |
| 4101 2 50 v 781 4101 V 165 w Fh(B)p 949 4101 V 188 w |
| Fk(IsEnabled)p 1392 4101 V 150 w Fb(F)m(alse)p 1551 4101 |
| V 59 w Fm(P)o(olygon)g(stipple)i(enable)p 2021 4101 V |
| 62 w(3.5.2)p 2156 4101 V 48 w(p)q(olygon/enable)p 2485 |
| 4101 V 289 4103 2197 2 v 1884 2494 a |
| currentpoint grestore moveto |
| 1884 2494 a 810 |
| 2653 a FF(T)l(able)i(6.10.)22 b(Rasterization)p eop |
| %%Page: 159 168 |
| 159 167 bop 1547 137 a FC(159)-164 2715 y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| -164 2715 a |
| 31 2781 a Fm(Get)14 b(v)n(alue)257 b(T)o(yp)q(e)843 2744 |
| y(Get)843 2781 y(Cmnd)1201 2744 y(Initial)1201 2781 y(V)m(alue)174 |
| b(Description)163 b(Sec.)105 b(A)o(ttribute)p -150 2797 |
| 2418 2 v -151 2897 2 100 v -126 2832 a Fe(TEXTURE)p 26 |
| 2832 10 2 v 12 w(1D)p 379 2897 2 100 v 387 2897 V 419 |
| w Fh(B)p 631 2897 V 271 w Fk(IsEnabled)p 1164 2897 V |
| 206 w Fb(F)m(alse)p 1345 2897 V 69 w Fm(T)m(rue)15 b(if)e(1D)g |
| (texturing)h(is)1370 2882 y(enabled)p 1815 2897 V 1840 |
| 2832 a(3.8.6)p 1950 2897 V 48 w(texture/enable)p 2266 |
| 2897 V -150 2899 2418 2 v -151 2998 2 100 v -126 2934 |
| a Fe(TEXTURE)p 26 2934 10 2 v 12 w(2D)p 379 2998 2 100 |
| v 387 2998 V 419 w Fh(B)p 631 2998 V 271 w Fk(IsEnabled)p |
| 1164 2998 V 206 w Fb(F)m(alse)p 1345 2998 V 69 w Fm(T)m(rue)h(if)e(2D)g |
| (texturing)h(is)1370 2983 y(enabled)p 1815 2998 V 1840 |
| 2934 a(3.8.6)p 1950 2998 V 48 w(texture/enable)p 2266 |
| 2998 V -150 3000 2418 2 v -151 3100 2 100 v -126 3035 |
| a Fe(TEXTURE)p 26 3035 10 2 v 12 w(BINDING)p 171 3035 |
| V 12 w(1D)p 379 3100 2 100 v 387 3100 V 261 w Fh(Z)511 |
| 3020 y Fd(+)p 631 3100 V 772 3035 a Fk(GetIn)o(tegerv)p |
| 1164 3100 V 218 w Fm(0)p 1345 3100 V 104 w(T)m(exture)h(ob)r(ject)g(b)q |
| (ound)1370 3085 y(to)f Fr(TEXTURE)p 1578 3085 14 2 v |
| 14 w(1D)p 1815 3100 2 100 v 1840 3035 a Fm(3.8.4)p 1950 |
| 3100 V 116 w(texture)p 2266 3100 V -150 3101 2418 2 v |
| -151 3201 2 100 v -126 3136 a Fe(TEXTURE)p 26 3136 10 |
| 2 v 12 w(BINDING)p 171 3136 V 12 w(2D)p 379 3201 2 100 |
| v 387 3201 V 261 w Fh(Z)511 3121 y Fd(+)p 631 3201 V |
| 772 3136 a Fk(GetIn)o(tegerv)p 1164 3201 V 218 w Fm(0)p |
| 1345 3201 V 104 w(T)m(exture)h(ob)r(ject)g(b)q(ound)1370 |
| 3186 y(to)f Fr(TEXTURE)p 1578 3186 14 2 v 14 w(2D)p 1815 |
| 3201 2 100 v 1840 3136 a Fm(3.8.4)p 1950 3201 V 116 w(texture)p |
| 2266 3201 V -150 3202 2418 2 v -151 3302 2 100 v -126 |
| 3237 a Fe(TEXTURE)p 379 3302 V 387 3302 V 437 w Fh(n)9 |
| b Fc(\002)h Fh(I)p 631 3302 V 203 w Fk(GetT)l(exImage)p |
| 1164 3302 V 155 w Fm(see)15 b(3.8)p 1345 3302 V 54 w |
| Fh(x)p Fm(D)f(texture)h(image)d(at)1370 3287 y(l.o.d.)17 |
| b Fh(i)p 1815 3302 V 1856 3237 a Fm(3.8)p 1950 3302 V |
| 188 w({)p 2266 3302 V -150 3304 2418 2 v -151 3403 2 |
| 100 v -126 3339 a Fe(TEXTURE)p 26 3339 10 2 v 12 w(WIDTH)p |
| 379 3403 2 100 v 387 3403 V 299 w Fh(n)9 b Fc(\002)g |
| Fh(Z)549 3324 y Fd(+)p 631 3403 V 657 3339 a Fk(GetT)l(exLev)o(elP)o |
| (aramete)o(r)p 1164 3403 V 102 w Fm(0)p 1345 3403 V 104 |
| w Fh(x)p Fm(D)14 b(texture)h(image)d Fh(i)p Fm('s)1370 |
| 3388 y(sp)q(eci\014ed)k(width)p 1815 3403 V 1856 3339 |
| a(3.8)p 1950 3403 V 188 w({)p 2266 3403 V -150 3405 2418 |
| 2 v -151 3505 2 100 v -126 3440 a Fe(TEXTURE)p 26 3440 |
| 10 2 v 12 w(HEIGHT)p 379 3505 2 100 v 387 3505 V 287 |
| w Fh(n)9 b Fc(\002)g Fh(Z)549 3425 y Fd(+)p 631 3505 |
| V 657 3440 a Fk(GetT)l(exLev)o(elP)o(aramete)o(r)p 1164 |
| 3505 V 102 w Fm(0)p 1345 3505 V 104 w(2D)14 b(texture)h(image)d |
| Fh(i)p Fm('s)1370 3490 y(sp)q(eci\014ed)k(heigh)o(t)p |
| 1815 3505 V 1856 3440 a(3.8)p 1950 3505 V 188 w({)p 2266 |
| 3505 V -150 3506 2418 2 v -151 3606 2 100 v -126 3541 |
| a Fe(TEXTURE)p 26 3541 10 2 v 12 w(BORDER)p 379 3606 |
| 2 100 v 387 3606 V 276 w Fh(n)9 b Fc(\002)g Fh(Z)549 |
| 3526 y Fd(+)p 631 3606 V 657 3541 a Fk(GetT)l(exLev)o(elP)o(aramete)o |
| (r)p 1164 3606 V 102 w Fm(0)p 1345 3606 V 104 w Fh(x)p |
| Fm(D)14 b(texture)h(image)d Fh(i)p Fm('s)1370 3591 y(sp)q(eci\014ed)k |
| (b)q(order)f(width)p 1815 3606 V 1856 3541 a(3.8)p 1950 |
| 3606 V 188 w({)p 2266 3606 V -150 3608 2418 2 v -151 |
| 3707 2 100 v -126 3643 a Fe(TEXTURE)p 26 3643 10 2 v |
| 12 w(INTERNAL)p 198 3643 V 12 w(F)o(ORMA)n(T)-126 3692 |
| y(\(TEXTURE)p 38 3692 V 12 w(COMPONENTS\))p 379 3707 |
| 2 100 v 387 3707 V 440 3643 a Fh(n)9 b Fc(\002)h Fh(Z)544 |
| 3649 y Fd(42)p 631 3707 V 657 3643 a Fk(GetT)l(exLev)o(elP)o(aramete)o |
| (r)p 1164 3707 V 102 w Fm(1)p 1345 3707 V 104 w Fh(x)p |
| Fm(D)k(texture)h(image)d Fh(i)p Fm('s)1370 3692 y(in)o(ternal)i(image)e |
| (format)p 1815 3707 V 1856 3643 a(3.8)p 1950 3707 V 188 |
| w({)p 2266 3707 V -150 3709 2418 2 v -151 3809 2 100 |
| v -126 3744 a Fe(TEXTURE)p 26 3744 10 2 v 12 w(RED)p |
| 103 3744 V 11 w(SIZE)p 379 3809 2 100 v 387 3809 V 265 |
| w Fh(n)d Fc(\002)g Fh(Z)549 3729 y Fd(+)p 631 3809 V |
| 657 3744 a Fk(GetT)l(exLev)o(elP)o(aramete)o(r)p 1164 |
| 3809 V 102 w Fm(0)p 1345 3809 V 104 w Fh(x)p Fm(D)14 |
| b(texture)h(image)d Fh(i)p Fm('s)1370 3794 y(red)j(resolution)p |
| 1815 3809 V 1856 3744 a(3.8)p 1950 3809 V 188 w({)p 2266 |
| 3809 V -150 3810 2418 2 v -151 3910 2 100 v -126 3845 |
| a Fe(TEXTURE)p 26 3845 10 2 v 12 w(GREEN)p 145 3845 V |
| 13 w(SIZE)p 379 3910 2 100 v 387 3910 V 221 w Fh(n)9 |
| b Fc(\002)g Fh(Z)549 3830 y Fd(+)p 631 3910 V 657 3845 |
| a Fk(GetT)l(exLev)o(elP)o(aramete)o(r)p 1164 3910 V 102 |
| w Fm(0)p 1345 3910 V 104 w Fh(x)p Fm(D)14 b(texture)h(image)d |
| Fh(i)p Fm('s)1370 3895 y(green)j(resolution)p 1815 3910 |
| V 1856 3845 a(3.8)p 1950 3910 V 188 w({)p 2266 3910 V |
| -150 3912 2418 2 v -151 4011 2 100 v -126 3946 a Fe(TEXTURE)p |
| 26 3946 10 2 v 12 w(BLUE)p 120 3946 V 12 w(SIZE)p 379 |
| 4011 2 100 v 387 4011 V 247 w Fh(n)9 b Fc(\002)g Fh(Z)549 |
| 3931 y Fd(+)p 631 4011 V 657 3946 a Fk(GetT)l(exLev)o(elP)o(aramete)o |
| (r)p 1164 4011 V 102 w Fm(0)p 1345 4011 V 104 w Fh(x)p |
| Fm(D)14 b(texture)h(image)d Fh(i)p Fm('s)1370 3996 y(blue)i(resolution) |
| p 1815 4011 V 1856 3946 a(3.8)p 1950 4011 V 188 w({)p |
| 2266 4011 V -150 4013 2418 2 v -151 4112 2 100 v -126 |
| 4048 a Fe(TEXTURE)p 26 4048 10 2 v 12 w(ALPHA)p 143 4048 |
| V 12 w(SIZE)p 379 4112 2 100 v 387 4112 V 224 w Fh(n)9 |
| b Fc(\002)g Fh(Z)549 4033 y Fd(+)p 631 4112 V 657 4048 |
| a Fk(GetT)l(exLev)o(elP)o(aramete)o(r)p 1164 4112 V 102 |
| w Fm(0)p 1345 4112 V 104 w Fh(x)p Fm(D)14 b(texture)h(image)d |
| Fh(i)p Fm('s)1370 4097 y(alpha)h(resolution)p 1815 4112 |
| V 1856 4048 a(3.8)p 1950 4112 V 188 w({)p 2266 4112 V |
| -150 4114 2418 2 v -151 4214 2 100 v -126 4149 a Fe(TEXTURE)p |
| 26 4149 10 2 v 12 w(LUMINANCE)p 225 4149 V 12 w(SIZE)p |
| 379 4214 2 100 v 387 4214 V 142 w Fh(n)c Fc(\002)g Fh(Z)549 |
| 4134 y Fd(+)p 631 4214 V 657 4149 a Fk(GetT)l(exLev)o(elP)o(aramete)o |
| (r)p 1164 4214 V 102 w Fm(0)p 1345 4214 V 104 w Fh(x)p |
| Fm(D)14 b(texture)h(image)d Fh(i)p Fm('s)1370 4199 y(luminance)h |
| (resolution)p 1815 4214 V 1856 4149 a(3.8)p 1950 4214 |
| V 188 w({)p 2266 4214 V -150 4215 2418 2 v -151 4315 |
| 2 100 v -126 4250 a Fe(TEXTURE)p 26 4250 10 2 v 12 w(INTENSITY)p |
| 207 4250 V 12 w(SIZE)p 379 4315 2 100 v 387 4315 V 160 |
| w Fh(n)c Fc(\002)g Fh(Z)549 4235 y Fd(+)p 631 4315 V |
| 657 4250 a Fk(GetT)l(exLev)o(elP)o(aramete)o(r)p 1164 |
| 4315 V 102 w Fm(0)p 1345 4315 V 104 w Fh(x)p Fm(D)14 |
| b(texture)h(image)d Fh(i)p Fm('s)1370 4300 y(in)o(tensit)o(y)i |
| (resolution)p 1815 4315 V 1856 4250 a(3.8)p 1950 4315 |
| V 188 w({)p 2266 4315 V -150 4317 2418 2 v -151 4366 |
| 2 50 v -126 4352 a Fe(TEXTURE)p 26 4352 10 2 v 12 w(BORDER)p |
| 169 4352 V 12 w(COLOR)p 379 4366 2 50 v 387 4366 V 156 |
| w Fm(2)465 4336 y Fd(+)502 4352 y Fc(\002)9 b Fh(C)p |
| 631 4366 V 139 w Fk(GetT)l(exP)o(arameter)p 1164 4366 |
| V 108 w Fm(0,0,0,0)p 1345 4366 V 54 w(T)m(exture)15 b(b)q(order)g |
| (color)p 1815 4366 V 110 w(3.8)p 1950 4366 V 133 w(texture)p |
| 2266 4366 V -150 4368 2418 2 v -151 4468 2 100 v -126 |
| 4403 a Fe(TEXTURE)p 26 4403 10 2 v 12 w(MIN)p 98 4403 |
| V 12 w(FIL)n(TER)p 379 4468 2 100 v 387 4468 V 217 w |
| Fm(2)458 4388 y Fd(+)494 4403 y Fc(\002)10 b Fh(Z)564 |
| 4409 y Fd(6)p 631 4468 V 712 4403 a Fk(GetT)l(exP)o(arameter)p |
| 1164 4468 V 107 w Fm(see)15 b(3.8)p 1345 4468 V 54 w(T)m(exture)g |
| (mini\014cation)1370 4453 y(function)p 1815 4468 V 1840 |
| 4403 a(3.8.1)p 1950 4468 V 116 w(texture)p 2266 4468 |
| V -150 4469 2418 2 v -151 4569 2 100 v -126 4504 a Fe(TEXTURE)p |
| 26 4504 10 2 v 12 w(MA)o(G)p 109 4504 V 12 w(FIL)n(TER)p |
| 379 4569 2 100 v 387 4569 V 206 w Fm(2)458 4489 y Fd(+)494 |
| 4504 y Fc(\002)10 b Fh(Z)564 4510 y Fd(2)p 631 4569 V |
| 712 4504 a Fk(GetT)l(exP)o(arameter)p 1164 4569 V 107 |
| w Fm(see)15 b(3.8)p 1345 4569 V 54 w(T)m(exture)g(magni\014cation)1370 |
| 4554 y(function)p 1815 4569 V 1840 4504 a(3.8.2)p 1950 |
| 4569 V 116 w(texture)p 2266 4569 V -150 4571 2418 2 v |
| -151 4621 2 50 v -126 4606 a Fe(TEXTURE)p 26 4606 10 |
| 2 v 12 w(WRAP)p 132 4606 V 12 w(S)p 379 4621 2 50 v 387 |
| 4621 V 278 w Fm(2)458 4591 y Fd(+)494 4606 y Fc(\002)10 |
| b Fh(Z)564 4612 y Fd(2)p 631 4621 V 712 4606 a Fk(GetT)l(exP)o |
| (arameter)p 1164 4621 V 102 w Fr(REPEAT)p 1345 4621 V |
| 48 w Fm(T)m(exture)15 b(wrap)f(mo)q(de)f(S)p 1815 4621 |
| V 92 w(3.8)p 1950 4621 V 133 w(texture)p 2266 4621 V |
| -150 4622 2418 2 v -151 4672 2 50 v -126 4657 a Fe(TEXTURE)p |
| 26 4657 10 2 v 12 w(WRAP)p 132 4657 V 12 w(T)p 379 4672 |
| 2 50 v 387 4672 V 273 w Fm(1)458 4642 y Fd(+)494 4657 |
| y Fc(\002)d Fh(Z)564 4663 y Fd(2)p 631 4672 V 712 4657 |
| a Fk(GetT)l(exP)o(arameter)p 1164 4672 V 102 w Fr(REPEAT)p |
| 1345 4672 V 48 w Fm(T)m(exture)15 b(wrap)f(mo)q(de)f(T)p |
| 1815 4672 V 85 w(3.8)p 1950 4672 V 133 w(texture)p 2266 |
| 4672 V -150 4674 2418 2 v -151 4725 2 52 v -126 4711 |
| a Fe(TEXTURE)p 26 4711 10 2 v 12 w(PRIORITY)p 379 4725 |
| 2 52 v 387 4725 V 224 w Fm(2)434 4695 y Fd(+)470 4711 |
| y Fc(\002)d Fh(R)544 4695 y Fd([0)p Ff(;)p Fd(1])p 631 |
| 4725 V 692 4711 a Fk(GetT)l(exP)o(arameterfv)p 1164 4725 |
| V 137 w Fm(1)p 1345 4725 V 104 w(T)m(exture)15 b(ob)r(ject)g(priorit)o |
| (y)p 1815 4725 V 52 w(3.8.4)p 1950 4725 V 116 w(texture)p |
| 2266 4725 V -150 4727 2418 2 v -151 4777 2 50 v -126 |
| 4762 a Fe(TEXTURE)p 26 4762 10 2 v 12 w(RESIDENT)p 379 |
| 4777 2 50 v 387 4777 V 251 w Fm(2)465 4747 y Fd(+)501 |
| 4762 y Fc(\002)10 b Fh(B)p 631 4777 V 119 w Fk(GetT)l(exP)o(arameteri)o |
| (v)p 1164 4777 V 102 w Fb(F)m(alse)p 1345 4777 V 69 w |
| Fm(T)m(exture)15 b(residency)p 1815 4777 V 149 w(3.8.4)p |
| 1950 4777 V 116 w(texture)p 2266 4777 V -150 4779 2418 |
| 2 v 1899 2715 a |
| currentpoint grestore moveto |
| 1899 2715 a 567 2874 a FF(T)l(able)h(6.11.)22 |
| b(T)l(exture)15 b(Ob)s(jects)p eop |
| %%Page: 160 169 |
| 160 168 bop 332 137 a FC(160)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)659 2421 |
| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 659 2421 a 795 2487 a Fm(Get)f(v)n(alue)161 b(T)o(yp)q(e)1373 |
| 2450 y(Get)1373 2487 y(Cmnd)1670 2450 y(Initial)1670 |
| 2487 y(V)m(alue)214 b(Description)174 b(Sec.)116 b(A)o(ttribute)p |
| 673 2504 2124 2 v 672 2604 2 100 v 720 2539 a Fe(TEXTURE)p |
| 872 2539 10 2 v 11 w(ENV)p 947 2539 V 12 w(MODE)p 1083 |
| 2604 2 100 v 1091 2604 V 104 w Fh(Z)1182 2545 y Fd(4)p |
| 1263 2604 V 1291 2539 a Fk(GetT)l(exEn)o(viv)p 1593 2604 |
| V 70 w Fr(MODULATE)p 1854 2604 V 67 w Fm(T)m(exture)15 |
| b(application)1880 2589 y(function)p 2324 2604 V 2360 |
| 2539 a(3.8.5)p 2480 2604 V 127 w(texture)p 2796 2604 |
| V 673 2605 2124 2 v 672 2705 2 100 v 712 2640 a Fe(TEXTURE)p |
| 864 2640 10 2 v 12 w(ENV)p 940 2640 V 12 w(COLOR)p 1083 |
| 2705 2 100 v 1091 2705 V 103 w Fh(C)p 1263 2705 V 99 |
| w Fk(GetT)l(exEn)o(vfv)p 1593 2705 V 98 w Fm(0,0,0,0)p |
| 1854 2705 V 94 w(T)m(exture)g(en)o(vironmen)o(t)1880 |
| 2690 y(color)p 2324 2705 V 2360 2640 a(3.8.5)p 2480 2705 |
| V 127 w(texture)p 2796 2705 V 673 2707 2124 2 v 672 2806 |
| 2 100 v 757 2741 a Fe(TEXTURE)p 909 2741 10 2 v 12 w(GEN)p |
| 986 2741 V 12 w Fg(x)p 1083 2806 2 100 v 1091 2806 V |
| 112 w Fm(4)9 b Fc(\002)h Fh(B)p 1263 2806 V 98 w Fk(IsEnabled)p |
| 1593 2806 V 144 w Fb(F)m(alse)p 1854 2806 V 110 w Fm(T)m(exgen)k |
| (enabled)g(\()p Fh(x)g Fm(is)1880 2791 y(S,)g(T,)f(R,)g(or)h(Q\))p |
| 2324 2806 V 2350 2741 a(2.10.4)p 2480 2806 V 48 w(texture/enable)p |
| 2796 2806 V 673 2808 2124 2 v 672 2957 2 150 v 796 2843 |
| a Fe(EYE)p 860 2843 10 2 v 12 w(PLANE)p 1083 2957 2 150 |
| v 1091 2957 V 144 w Fm(4)9 b Fc(\002)g Fh(R)1220 2828 |
| y Fd(4)p 1263 2957 V 1289 2843 a Fk(GetT)l(exGenfv)p |
| 1593 2957 V 67 w Fm(see)15 b(2.10.4)p 1854 2957 V 67 |
| w(T)m(exgen)f(plane)g(equation)1880 2893 y(co)q(e\016cien)o(ts)h(\(for) |
| f(S,)f(T,)1880 2942 y(R,)g(and)h(Q\))p 2324 2957 V 2350 |
| 2843 a(2.10.4)p 2480 2957 V 116 w(texture)p 2796 2957 |
| V 673 2959 2124 2 v 672 3108 2 150 v 766 2994 a Fe(OBJECT)p |
| 892 2994 10 2 v 11 w(PLANE)p 1083 3108 2 150 v 1091 3108 |
| V 113 w Fm(4)9 b Fc(\002)g Fh(R)1220 2979 y Fd(4)p 1263 |
| 3108 V 1289 2994 a Fk(GetT)l(exGenfv)p 1593 3108 V 67 |
| w Fm(see)15 b(2.10.4)p 1854 3108 V 67 w(T)m(exgen)f(ob)r(ject)h(linear) |
| 1880 3044 y(co)q(e\016cien)o(ts)g(\(for)f(S,)f(T,)1880 |
| 3093 y(R,)g(and)h(Q\))p 2324 3108 V 2350 2994 a(2.10.4)p |
| 2480 3108 V 116 w(texture)p 2796 3108 V 673 3110 2124 |
| 2 v 672 3259 2 150 v 719 3145 a Fe(TEXTURE)p 871 3145 |
| 10 2 v 12 w(GEN)p 948 3145 V 12 w(MODE)p 1083 3259 2 |
| 150 v 1091 3259 V 68 w Fm(4)9 b Fc(\002)g Fh(Z)1218 3151 |
| y Fd(3)p 1263 3259 V 1289 3145 a Fk(GetT)l(exGeniv)p |
| 1593 3259 V 48 w Fr(EYE)p 1687 3145 14 2 v 16 w(LINEAR)p |
| 1854 3259 2 150 v 48 w Fm(F)m(unction)14 b(used)g(for)1880 |
| 3195 y(texgen)h(\(for)e(S,)h(T,)f(R,)1880 3245 y(and)h(Q)p |
| 2324 3259 V 2350 3145 a(2.10.4)p 2480 3259 V 116 w(texture)p |
| 2796 3259 V 673 3261 2124 2 v 1499 2421 a |
| currentpoint grestore moveto |
| 1499 2421 a |
| 549 2581 a FF(T)l(able)i(6.12.)22 b(T)l(exture)16 b(En)o(vironmen)o(t)e |
| (and)i(Generation)p eop |
| %%Page: 161 170 |
| 161 169 bop 1547 137 a FC(161)136 2632 y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 136 2632 a 389 |
| 2698 a Fm(Get)14 b(v)n(alue)268 b(T)o(yp)q(e)1051 2661 |
| y(Get)1051 2698 y(Cmnd)1304 2661 y(Initial)1304 2698 |
| y(V)m(alue)185 b(Description)163 b(Sec.)158 b(A)o(ttribute)p |
| 150 2715 2335 2 v 149 2765 2 50 v 369 2750 a Fe(SCISSOR)p |
| 500 2750 10 2 v 11 w(TEST)p 794 2765 2 50 v 802 2765 |
| V 272 w Fh(B)p 955 2765 V 110 w Fk(IsEnabled)p 1257 2765 |
| V 102 w Fb(F)m(alse)p 1459 2765 V 80 w Fm(Scissoring)14 |
| b(enabled)p 1929 2765 V 140 w(4.1.2)p 2064 2765 V 107 |
| w(scissor/enable)p 2484 2765 V 150 2766 2335 2 v 149 |
| 2816 2 50 v 377 2801 a Fe(SCISSOR)p 508 2801 10 2 v 10 |
| w(BO)o(X)p 794 2816 2 50 v 802 2816 V 247 w Fm(4)9 b |
| Fc(\002)g Fh(Z)p 955 2816 V 53 w Fk(GetIn)o(tegerv)p |
| 1257 2816 V 48 w Fm(see)15 b(4.1.2)p 1459 2816 V 48 w(Scissor)f(b)q(o)o |
| (x)p 1929 2816 V 268 w(4.1.2)p 2064 2816 V 175 w(scissor)p |
| 2484 2816 V 150 2818 2335 2 v 149 2868 2 50 v 380 2853 |
| a Fe(ALPHA)p 487 2853 10 2 v 13 w(TEST)p 794 2868 2 50 |
| v 802 2868 V 283 w Fh(B)p 955 2868 V 110 w Fk(IsEnabled)p |
| 1257 2868 V 102 w Fb(F)m(alse)p 1459 2868 V 80 w Fm(Alpha)f(test)i |
| (enabled)p 1929 2868 V 128 w(4.1.3)p 2064 2868 V 62 w |
| (color-bu\013er/enable)p 2484 2868 V 150 2869 2335 2 |
| v 149 2919 2 50 v 332 2904 a Fe(ALPHA)p 439 2904 10 2 |
| v 12 w(TEST)p 532 2904 V 11 w(FUNC)p 794 2919 2 50 v |
| 802 2919 V 229 w Fh(Z)884 2910 y Fd(8)p 955 2919 V 980 |
| 2904 a Fk(GetIn)o(tegerv)p 1257 2919 V 58 w Fr(ALWAYS)p |
| 1459 2919 V 60 w Fm(Alpha)e(test)i(function)p 1929 2919 |
| V 117 w(4.1.3)p 2064 2919 V 130 w(color-bu\013er)p 2484 |
| 2919 V 150 2921 2335 2 v 149 3020 2 100 v 344 2956 a |
| Fe(ALPHA)p 451 2956 10 2 v 12 w(TEST)p 544 2956 V 11 |
| w(REF)p 794 3020 2 100 v 802 3020 V 234 w Fh(R)881 2941 |
| y Fd(+)p 955 3020 V 980 2956 a Fk(GetIn)o(tegerv)p 1257 |
| 3020 V 113 w Fm(0)p 1459 3020 V 116 w(Alpha)e(test)i(reference)1485 |
| 3006 y(v)n(alue)p 1929 3020 V 1955 2956 a(4.1.3)p 2064 |
| 3020 V 130 w(color-bu\013er)p 2484 3020 V 150 3022 2335 |
| 2 v 149 3072 2 50 v 367 3057 a Fe(STENCIL)p 502 3057 |
| 10 2 v 11 w(TEST)p 794 3072 2 50 v 802 3072 V 270 w Fh(B)p |
| 955 3072 V 110 w Fk(IsEnabled)p 1257 3072 V 102 w Fb(F)m(alse)p |
| 1459 3072 V 80 w Fm(Stenciling)e(enabled)p 1929 3072 |
| V 141 w(4.1.4)p 2064 3072 V 48 w(stencil-bu\013er/enable)p |
| 2484 3072 V 150 3074 2335 2 v 149 3123 2 50 v 365 3108 |
| a Fe(STENCIL)p 500 3108 10 2 v 10 w(FUNC)p 794 3123 2 |
| 50 v 802 3123 V 262 w Fh(Z)884 3114 y Fd(8)p 955 3123 |
| V 980 3108 a Fk(GetIn)o(tegerv)p 1257 3123 V 58 w Fr(ALWAYS)p |
| 1459 3123 V 60 w Fm(Stencil)h(function)p 1929 3123 V |
| 185 w(4.1.4)p 2064 3123 V 116 w(stencil-bu\013er)p 2484 |
| 3123 V 150 3125 2335 2 v 149 3175 2 50 v 306 3160 a Fe(STENCIL)p |
| 441 3160 10 2 v 10 w(V)m(ALUE)p 553 3160 V 12 w(MASK)p |
| 794 3175 2 50 v 802 3175 V 198 w Fh(Z)881 3145 y Fd(+)p |
| 955 3175 V 980 3160 a Fk(GetIn)o(tegerv)p 1257 3175 V |
| 99 w Fm(1's)p 1459 3175 V 102 w(Stencil)g(mask)p 1929 |
| 3175 V 239 w(4.1.4)p 2064 3175 V 116 w(stencil-bu\013er)p |
| 2484 3175 V 150 3177 2335 2 v 149 3226 2 50 v 376 3211 |
| a Fe(STENCIL)p 511 3211 10 2 v 11 w(REF)p 794 3226 2 |
| 50 v 802 3226 V 268 w Fh(Z)881 3196 y Fd(+)p 955 3226 |
| V 980 3211 a Fk(GetIn)o(tegerv)p 1257 3226 V 113 w Fm(0)p |
| 1459 3226 V 116 w(Stencil)g(reference)i(v)n(alue)p 1929 |
| 3226 V 66 w(4.1.4)p 2064 3226 V 116 w(stencil-bu\013er)p |
| 2484 3226 V 150 3228 2335 2 v 149 3278 2 50 v 373 3263 |
| a Fe(STENCIL)p 508 3263 10 2 v 11 w(F)m(AIL)p 794 3278 |
| 2 50 v 802 3278 V 270 w Fh(Z)884 3269 y Fd(6)p 955 3278 |
| V 980 3263 a Fk(GetIn)o(tegerv)p 1257 3278 V 80 w Fr(KEEP)p |
| 1459 3278 V 82 w Fm(Stencil)e(fail)e(action)p 1929 3278 |
| V 153 w(4.1.4)p 2064 3278 V 116 w(stencil-bu\013er)p |
| 2484 3278 V 150 3279 2335 2 v 149 3379 2 100 v 272 3314 |
| a Fe(STENCIL)p 407 3314 10 2 v 10 w(P)n(ASS)p 491 3314 |
| V 11 w(DEPTH)p 609 3314 V 12 w(F)m(AIL)p 794 3379 2 100 |
| v 802 3379 V 168 w Fh(Z)884 3320 y Fd(6)p 955 3379 V |
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| 1459 3379 V 82 w Fm(Stencil)i(depth)g(bu\013er)1485 3364 |
| y(fail)e(action)p 1929 3379 V 1955 3314 a(4.1.4)p 2064 |
| 3379 V 116 w(stencil-bu\013er)p 2484 3379 V 150 3381 |
| 2335 2 v 149 3480 2 100 v 269 3416 a Fe(STENCIL)p 404 |
| 3416 10 2 v 10 w(P)n(ASS)p 488 3416 V 11 w(DEPTH)p 606 |
| 3416 V 12 w(P)n(ASS)p 794 3480 2 100 v 802 3480 V 166 |
| w Fh(Z)884 3422 y Fd(6)p 955 3480 V 980 3416 a Fk(GetIn)o(tegerv)p |
| 1257 3480 V 80 w Fr(KEEP)p 1459 3480 V 82 w Fm(Stencil)i(depth)g |
| (bu\013er)1485 3465 y(pass)g(action)p 1929 3480 V 1955 |
| 3416 a(4.1.4)p 2064 3480 V 116 w(stencil-bu\013er)p 2484 |
| 3480 V 150 3482 2335 2 v 149 3532 2 50 v 380 3517 a Fe(DEPTH)p |
| 489 3517 10 2 v 11 w(TEST)p 794 3532 2 50 v 802 3532 |
| V 283 w Fh(B)p 955 3532 V 110 w Fk(IsEnabled)p 1257 3532 |
| V 102 w Fb(F)m(alse)p 1459 3532 V 80 w Fm(Depth)g(bu\013er)h(enabled)p |
| 1929 3532 V 87 w(4.1.5)p 2064 3532 V 54 w(depth-bu\013er/enable)p |
| 2484 3532 V 150 3534 2335 2 v 149 3633 2 100 v 377 3568 |
| a Fe(DEPTH)p 486 3568 10 2 v 12 w(FUNC)p 794 3633 2 100 |
| v 802 3633 V 274 w Fh(Z)884 3574 y Fd(8)p 955 3633 V |
| 980 3568 a Fk(GetIn)o(tegerv)p 1257 3633 V 80 w Fr(LESS)p |
| 1459 3633 V 82 w Fm(Depth)f(bu\013er)h(test)1485 3618 |
| y(function)p 1929 3633 V 1955 3568 a(4.1.5)p 2064 3633 |
| V 122 w(depth-bu\013er)p 2484 3633 V 150 3635 2335 2 |
| v 149 3685 2 50 v 427 3670 a Fe(BLEND)p 794 3685 V 802 |
| 3685 V 330 w Fh(B)p 955 3685 V 110 w Fk(IsEnabled)p 1257 |
| 3685 V 102 w Fb(F)m(alse)p 1459 3685 V 80 w Fm(Blending)e(enabled)p |
| 1929 3685 V 158 w(4.1.6)p 2064 3685 V 62 w(color-bu\013er/enable)p |
| 2484 3685 V 150 3686 2335 2 v 149 3786 2 100 v 391 3721 |
| a Fe(BLEND)p 498 3721 10 2 v 12 w(SR)o(C)p 794 3786 2 |
| 100 v 802 3786 V 288 w Fh(Z)884 3727 y Fd(9)p 955 3786 |
| V 980 3721 a Fk(GetIn)o(tegerv)p 1257 3786 V 91 w Fr(ONE)p |
| 1459 3786 V 93 w Fm(Blending)g(source)1485 3771 y(function)p |
| 1929 3786 V 1955 3721 a(4.1.6)p 2064 3786 V 130 w(color-bu\013er)p |
| 2484 3786 V 150 3788 2335 2 v 149 3887 2 100 v 390 3822 |
| a Fe(BLEND)p 497 3822 10 2 v 12 w(DST)p 794 3887 2 100 |
| v 802 3887 V 287 w Fh(Z)884 3828 y Fd(8)p 955 3887 V |
| 980 3822 a Fk(GetIn)o(tegerv)p 1257 3887 V 80 w Fr(ZERO)p |
| 1459 3887 V 82 w Fm(Blending)g(destination)1485 3872 |
| y(function)p 1929 3887 V 1955 3822 a(4.1.6)p 2064 3887 |
| V 130 w(color-bu\013er)p 2484 3887 V 150 3889 2335 2 |
| v 149 3939 2 50 v 419 3924 a Fe(DITHER)p 794 3939 V 802 |
| 3939 V 323 w Fh(B)p 955 3939 V 110 w Fk(IsEnabled)p 1257 |
| 3939 V 105 w Fb(T)m(rue)p 1459 3939 V 83 w Fm(Dithering)g(enabled)p |
| 1929 3939 V 146 w(4.1.7)p 2064 3939 V 62 w(color-bu\013er/enable)p |
| 2484 3939 V 150 3940 2335 2 v 149 3990 2 50 v 189 3975 |
| a Fe(INDEX)p 289 3975 10 2 v 12 w(LOGIC)p 399 3975 V |
| 11 w(OP)e(\(v1.0:)j(GL)p 596 3975 V 11 w(LOGIC)p 705 |
| 3975 V 11 w(OP\))p 794 3990 2 50 v 802 3990 V 93 w Fh(B)p |
| 955 3990 V 110 w Fk(IsEnabled)p 1257 3990 V 102 w Fb(F)m(alse)p |
| 1459 3990 V 80 w Fm(Index)g(logic)f(op)h(enabled)p 1929 |
| 3990 V 62 w(4.1.8)p 2064 3990 V 62 w(color-bu\013er/enable)p |
| 2484 3990 V 150 3992 2335 2 v 149 4042 2 50 v 343 4027 |
| a Fe(COLOR)p 454 4027 10 2 v 11 w(LOGIC)p 563 4027 V |
| 11 w(OP)p 794 4042 2 50 v 802 4042 V 247 w Fh(B)p 955 |
| 4042 V 110 w Fk(IsEnabled)p 1257 4042 V 102 w Fb(F)m(alse)p |
| 1459 4042 V 80 w Fm(Color)f(logic)g(op)g(enabled)p 1929 |
| 4042 V 65 w(4.1.8)p 2064 4042 V 62 w(color-bu\013er/enable)p |
| 2484 4042 V 150 4043 2335 2 v 149 4093 2 50 v 351 4078 |
| a Fe(LOGIC)p 451 4078 10 2 v 11 w(OP)p 505 4078 V 11 |
| w(MODE)p 794 4093 2 50 v 802 4093 V 240 w Fh(Z)875 4084 |
| y Fd(16)p 955 4093 V 980 4078 a Fk(GetIn)o(tegerv)p 1257 |
| 4093 V 80 w Fr(COPY)p 1459 4093 V 82 w Fm(Logic)g(op)h(function)p |
| 1929 4093 V 152 w(4.1.8)p 2064 4093 V 130 w(color-bu\013er)p |
| 2484 4093 V 150 4095 2335 2 v 1599 2632 a |
| currentpoint grestore moveto |
| 1599 2632 a |
| 560 2792 a FF(T)l(able)i(6.13.)22 b(Pixel)15 b(Op)q(erations)p |
| eop |
| %%Page: 162 171 |
| 162 170 bop 332 137 a FC(162)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)581 2326 |
| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 581 2326 a 725 2392 a Fm(Get)f(v)n(alue)173 b(T)o(yp)q(e)1315 |
| 2355 y(Get)1315 2392 y(Cmnd)1576 2355 y(Initial)1576 |
| 2392 y(V)m(alue)186 b(Description)163 b(Sec.)89 b(A)o(ttribute)p |
| 595 2409 2027 2 v 594 2509 2 100 v 700 2444 a Fe(DRA)m(W)p |
| 796 2444 10 2 v 11 w(BUFFER)p 1021 2509 2 100 v 1029 |
| 2509 V 150 w Fh(Z)1108 2450 y Fd(10)p Fa(\003)p 1210 |
| 2509 V 1244 2444 a Fk(GetIn)o(tegerv)p 1529 2509 V 56 |
| w Fm(see)15 b(4.2.1)p 1732 2509 V 48 w(Bu\013ers)h(selected)g(for)1757 |
| 2494 y(dra)o(wing)p 2201 2509 V 2227 2444 a(4.2.1)p 2336 |
| 2509 V 62 w(color-bu\013er)p 2621 2509 V 595 2510 2027 |
| 2 v 594 2560 2 50 v 663 2545 a Fe(INDEX)p 763 2545 10 |
| 2 v 12 w(WRITEMASK)p 1021 2560 2 50 v 1029 2560 V 124 |
| w Fh(Z)1122 2530 y Fd(+)p 1210 2560 V 1244 2545 a Fk(GetIn)o(tegerv)p |
| 1529 2560 V 108 w Fm(1's)p 1732 2560 V 101 w(Color)d(index)h(writemask) |
| p 2201 2560 V 58 w(4.2.2)p 2336 2560 V 62 w(color-bu\013er)p |
| 2621 2560 V 595 2562 2027 2 v 594 2661 2 100 v 658 2597 |
| a Fe(COLOR)p 769 2597 10 2 v 11 w(WRITEMASK)p 1021 2661 |
| 2 100 v 1029 2661 V 96 w Fm(4)9 b Fc(\002)g Fh(B)p 1210 |
| 2661 V 65 w Fk(GetBo)q(olean)o(v)p 1529 2661 V 82 w Fb(T)m(rue)p |
| 1732 2661 V 82 w Fm(Color)k(write)i(enables;)f(R,)1757 |
| 2646 y(G,)f(B,)h(or)g(A)p 2201 2661 V 2227 2597 a(4.2.2)p |
| 2336 2661 V 62 w(color-bu\013er)p 2621 2661 V 595 2663 |
| 2027 2 v 594 2763 2 100 v 659 2698 a Fe(DEPTH)p 768 2698 |
| 10 2 v 11 w(WRITEMASK)p 1021 2763 2 100 v 1029 2763 V |
| 132 w Fh(B)p 1210 2763 V 101 w Fk(GetBo)q(olean)o(v)p |
| 1529 2763 V 82 w Fb(T)m(rue)p 1732 2763 V 82 w Fm(Depth)h(bu\013er)f |
| (enabled)1757 2748 y(for)g(writing)p 2201 2763 V 2227 |
| 2698 a(4.2.2)p 2336 2763 V 54 w(depth-bu\013er)p 2621 |
| 2763 V 595 2764 2027 2 v 594 2864 2 100 v 646 2799 a |
| Fe(STENCIL)p 781 2799 10 2 v 11 w(WRITEMASK)p 1021 2864 |
| 2 100 v 1029 2864 V 107 w Fh(Z)1122 2784 y Fd(+)p 1210 |
| 2864 V 1244 2799 a Fk(GetIn)o(tegerv)p 1529 2864 V 108 |
| w Fm(1's)p 1732 2864 V 101 w(Stencil)g(bu\013er)1757 |
| 2849 y(writemask)p 2201 2864 V 2227 2799 a(4.2.2)p 2336 |
| 2864 V 48 w(stencil-bu\013er)p 2621 2864 V 595 2866 2027 |
| 2 v 594 2965 2 100 v 646 2900 a Fe(COLOR)p 757 2900 10 |
| 2 v 11 w(CLEAR)p 873 2900 V 11 w(V)m(ALUE)p 1021 2965 |
| 2 100 v 1029 2965 V 120 w Fh(C)p 1210 2965 V 130 w Fk(GetFloatv)p |
| 1529 2965 V 94 w Fm(0,0,0,0)p 1732 2965 V 65 w(Color)f(bu\013er)i |
| (clear)1757 2950 y(v)n(alue)e(\(R)o(GBA)h(mo)q(de\))p |
| 2201 2965 V 2227 2900 a(4.2.3)p 2336 2965 V 62 w(color-bu\013er)p |
| 2621 2965 V 595 2967 2027 2 v 594 3067 2 100 v 651 3002 |
| a Fe(INDEX)p 751 3002 10 2 v 12 w(CLEAR)p 868 3002 V |
| 11 w(V)m(ALUE)p 1021 3067 2 100 v 1029 3067 V 114 w Fh(C)s(I)p |
| 1210 3067 V 120 w Fk(GetFloatv)p 1529 3067 V 143 w Fm(0)p |
| 1732 3067 V 115 w(Color)e(bu\013er)h(clear)g(v)n(alue)1757 |
| 3052 y(\(color)h(index)g(mo)q(de\))p 2201 3067 V 2227 |
| 3002 a(4.2.3)p 2336 3067 V 62 w(color-bu\013er)p 2621 |
| 3067 V 595 3068 2027 2 v 594 3168 2 100 v 647 3103 a |
| Fe(DEPTH)p 756 3103 10 2 v 11 w(CLEAR)p 872 3103 V 11 |
| w(V)m(ALUE)p 1021 3168 2 100 v 1029 3168 V 107 w Fh(R)1122 |
| 3088 y Fd(+)p 1210 3168 V 1244 3103 a Fk(GetIn)o(tegerv)p |
| 1529 3168 V 122 w Fm(1)p 1732 3168 V 115 w(Depth)h(bu\013er)f(clear) |
| 1757 3153 y(v)n(alue)p 2201 3168 V 2227 3103 a(4.2.3)p |
| 2336 3168 V 54 w(depth-bu\013er)p 2621 3168 V 595 3169 |
| 2027 2 v 594 3219 2 50 v 634 3204 a Fe(STENCIL)p 769 |
| 3204 10 2 v 11 w(CLEAR)p 885 3204 V 11 w(V)m(ALUE)p 1021 |
| 3219 2 50 v 1029 3219 V 95 w Fh(Z)1122 3189 y Fd(+)p |
| 1210 3219 V 1244 3204 a Fk(GetIn)o(tegerv)p 1529 3219 |
| V 122 w Fm(0)p 1732 3219 V 115 w(Stencil)g(clear)h(v)n(alue)p |
| 2201 3219 V 140 w(4.2.3)p 2336 3219 V 48 w(stencil-bu\013er)p |
| 2621 3219 V 595 3221 2027 2 v 594 3321 2 100 v 643 3256 |
| a Fe(A)o(CCUM)p 759 3256 10 2 v 11 w(CLEAR)p 875 3256 |
| V 12 w(V)m(ALUE)p 1021 3321 2 100 v 1029 3321 V 68 w |
| Fm(4)9 b Fc(\002)g Fh(R)1158 3241 y Fd(+)p 1210 3321 |
| V 1264 3256 a Fk(GetFloatv)p 1529 3321 V 143 w Fm(0)p |
| 1732 3321 V 115 w(Accum)o(ulation)j(bu\013er)1757 3306 |
| y(clear)j(v)n(alue)p 2201 3321 V 2227 3256 a(4.2.3)p |
| 2336 3321 V 48 w(accum-bu\013er)p 2621 3321 V 595 3322 |
| 2027 2 v 1577 2326 a |
| currentpoint grestore moveto |
| 1577 2326 a 734 2486 a FF(T)l(able)h(6.14.)22 |
| b(F)l(ramebu\013er)15 b(Con)o(trol)p eop |
| %%Page: 163 172 |
| 163 171 bop 1547 137 a FC(163)219 2252 y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 219 2252 a 358 |
| 2318 a Fm(Get)14 b(v)n(alue)150 b(T)o(yp)q(e)906 2281 |
| y(Get)906 2318 y(Cmnd)1146 2281 y(Initial)1146 2318 y(V)m(alue)164 |
| b(Description)156 b(Sec.)59 b(A)o(ttribute)p 232 2334 |
| 1878 2 v 231 2434 2 100 v 278 2369 a Fe(UNP)n(A)o(CK)p |
| 408 2369 10 2 v 12 w(SW)m(AP)p 506 2369 V 12 w(BYTES)p |
| 649 2434 2 100 v 657 2434 V 95 w Fh(B)p 801 2434 V 82 |
| w Fk(GetBo)q(olean)o(v)p 1120 2434 V 57 w Fb(F)m(alse)p |
| 1280 2434 V 58 w Fm(V)m(alue)14 b(of)1305 2419 y Fr(UNPACK)p |
| 1440 2419 14 2 v 15 w(SWAP)p 1543 2419 V 15 w(BYTES)p |
| 1749 2434 2 100 v 1784 2369 a Fm(4.3)p 1871 2434 V 58 |
| w(pixel-store)p 2109 2434 V 232 2436 1878 2 v 231 2535 |
| 2 100 v 299 2471 a Fe(UNP)n(A)o(CK)p 429 2471 10 2 v |
| 12 w(LSB)p 498 2471 V 10 w(FIRST)p 649 2535 2 100 v 657 |
| 2535 V 115 w Fh(B)p 801 2535 V 82 w Fk(GetBo)q(olean)o(v)p |
| 1120 2535 V 57 w Fb(F)m(alse)p 1280 2535 V 58 w Fm(V)m(alue)g(of)1305 |
| 2520 y Fr(UNPACK)p 1440 2520 14 2 v 15 w(LSB)p 1521 2520 |
| V 15 w(FIRST)p 1749 2535 2 100 v 1784 2471 a Fm(4.3)p |
| 1871 2535 V 58 w(pixel-store)p 2109 2535 V 232 2537 1878 |
| 2 v 231 2637 2 100 v 271 2572 a Fe(UNP)n(A)o(CK)p 401 |
| 2572 10 2 v 12 w(R)o(O)o(W)p 486 2572 V 12 w(LENGTH)p |
| 649 2637 2 100 v 657 2637 V 76 w Fh(Z)731 2557 y Fd(+)p |
| 801 2637 V 835 2572 a Fk(GetIn)o(tegerv)p 1120 2637 V |
| 100 w Fm(0)p 1280 2637 V 94 w(V)m(alue)g(of)1305 2622 |
| y Fr(UNPACK)p 1440 2622 14 2 v 15 w(ROW)p 1521 2622 V |
| 15 w(LENGTH)p 1749 2637 2 100 v 1784 2572 a Fm(4.3)p |
| 1871 2637 V 58 w(pixel-store)p 2109 2637 V 232 2638 1878 |
| 2 v 231 2738 2 100 v 292 2673 a Fe(UNP)n(A)o(CK)p 422 |
| 2673 10 2 v 11 w(SKIP)p 504 2673 V 12 w(R)o(O)o(WS)p |
| 649 2738 2 100 v 657 2738 V 96 w Fh(Z)731 2658 y Fd(+)p |
| 801 2738 V 835 2673 a Fk(GetIn)o(tegerv)p 1120 2738 V |
| 100 w Fm(0)p 1280 2738 V 94 w(V)m(alue)g(of)1305 2723 |
| y Fr(UNPACK)p 1440 2723 14 2 v 15 w(SKIP)p 1543 2723 |
| V 15 w(ROWS)p 1749 2738 2 100 v 1784 2673 a Fm(4.3)p |
| 1871 2738 V 58 w(pixel-store)p 2109 2738 V 232 2740 1878 |
| 2 v 231 2839 2 100 v 282 2774 a Fe(UNP)n(A)o(CK)p 412 |
| 2774 10 2 v 12 w(SKIP)p 495 2774 V 11 w(PIXELS)p 649 |
| 2839 2 100 v 657 2839 V 87 w Fh(Z)731 2759 y Fd(+)p 801 |
| 2839 V 835 2774 a Fk(GetIn)o(tegerv)p 1120 2839 V 100 |
| w Fm(0)p 1280 2839 V 94 w(V)m(alue)g(of)1305 2824 y Fr(UNPACK)p |
| 1440 2824 14 2 v 15 w(SKIP)p 1543 2824 V 15 w(PIXELS)p |
| 1749 2839 2 100 v 1784 2774 a Fm(4.3)p 1871 2839 V 58 |
| w(pixel-store)p 2109 2839 V 232 2841 1878 2 v 231 2940 |
| 2 100 v 283 2876 a Fe(UNP)n(A)o(CK)p 413 2876 10 2 v |
| 12 w(ALIGNMENT)p 649 2940 2 100 v 657 2940 V 89 w Fh(Z)731 |
| 2861 y Fd(+)p 801 2940 V 835 2876 a Fk(GetIn)o(tegerv)p |
| 1120 2940 V 100 w Fm(4)p 1280 2940 V 94 w(V)m(alue)g(of)1305 |
| 2926 y Fr(UNPACK)p 1440 2926 14 2 v 15 w(ALIGNMENT)p |
| 1749 2940 2 100 v 1784 2876 a Fm(4.3)p 1871 2940 V 58 |
| w(pixel-store)p 2109 2940 V 232 2942 1878 2 v 231 3042 |
| 2 100 v 300 2977 a Fe(P)n(A)o(CK)p 386 2977 10 2 v 12 |
| w(SW)m(AP)p 484 2977 V 11 w(BYTES)p 649 3042 2 100 v |
| 657 3042 V 118 w Fh(B)p 801 3042 V 82 w Fk(GetBo)q(olean)o(v)p |
| 1120 3042 V 57 w Fb(F)m(alse)p 1280 3042 V 58 w Fm(V)m(alue)g(of)1305 |
| 3027 y Fr(PACK)p 1396 3027 14 2 v 15 w(SWAP)p 1499 3027 |
| V 15 w(BYTES)p 1749 3042 2 100 v 1784 2977 a Fm(4.3)p |
| 1871 3042 V 58 w(pixel-store)p 2109 3042 V 232 3043 1878 |
| 2 v 231 3143 2 100 v 321 3078 a Fe(P)n(A)o(CK)p 407 3078 |
| 10 2 v 11 w(LSB)p 475 3078 V 11 w(FIRST)p 649 3143 2 |
| 100 v 657 3143 V 137 w Fh(B)p 801 3143 V 82 w Fk(GetBo)q(olean)o(v)p |
| 1120 3143 V 57 w Fb(F)m(alse)p 1280 3143 V 58 w Fm(V)m(alue)g(of)1305 |
| 3128 y Fr(PACK)p 1396 3128 14 2 v 15 w(LSB)p 1477 3128 |
| V 15 w(FIRST)p 1749 3143 2 100 v 1784 3078 a Fm(4.3)p |
| 1871 3143 V 58 w(pixel-store)p 2109 3143 V 232 3145 1878 |
| 2 v 231 3244 2 100 v 293 3180 a Fe(P)n(A)o(CK)p 379 3180 |
| 10 2 v 12 w(R)o(O)o(W)p 464 3180 V 12 w(LENGTH)p 649 |
| 3244 2 100 v 657 3244 V 98 w Fh(Z)731 3165 y Fd(+)p 801 |
| 3244 V 835 3180 a Fk(GetIn)o(tegerv)p 1120 3244 V 100 |
| w Fm(0)p 1280 3244 V 94 w(V)m(alue)g(of)1305 3229 y Fr(PACK)p |
| 1396 3229 14 2 v 15 w(ROW)p 1477 3229 V 15 w(LENGTH)p |
| 1749 3244 2 100 v 1784 3180 a Fm(4.3)p 1871 3244 V 58 |
| w(pixel-store)p 2109 3244 V 232 3246 1878 2 v 231 3346 |
| 2 100 v 314 3281 a Fe(P)n(A)o(CK)p 400 3281 10 2 v 11 |
| w(SKIP)p 482 3281 V 11 w(R)o(O)o(WS)p 649 3346 2 100 |
| v 657 3346 V 119 w Fh(Z)731 3266 y Fd(+)p 801 3346 V |
| 835 3281 a Fk(GetIn)o(tegerv)p 1120 3346 V 100 w Fm(0)p |
| 1280 3346 V 94 w(V)m(alue)g(of)1305 3331 y Fr(PACK)p |
| 1396 3331 14 2 v 15 w(SKIP)p 1499 3331 V 15 w(ROWS)p |
| 1749 3346 2 100 v 1784 3281 a Fm(4.3)p 1871 3346 V 58 |
| w(pixel-store)p 2109 3346 V 232 3347 1878 2 v 231 3447 |
| 2 100 v 304 3382 a Fe(P)n(A)o(CK)p 390 3382 10 2 v 12 |
| w(SKIP)p 473 3382 V 11 w(PIXELS)p 649 3447 2 100 v 657 |
| 3447 V 109 w Fh(Z)731 3367 y Fd(+)p 801 3447 V 835 3382 |
| a Fk(GetIn)o(tegerv)p 1120 3447 V 100 w Fm(0)p 1280 3447 |
| V 94 w(V)m(alue)g(of)1305 3432 y Fr(PACK)p 1396 3432 |
| 14 2 v 15 w(SKIP)p 1499 3432 V 15 w(PIXELS)p 1749 3447 |
| 2 100 v 1784 3382 a Fm(4.3)p 1871 3447 V 58 w(pixel-store)p |
| 2109 3447 V 232 3449 1878 2 v 231 3548 2 100 v 306 3483 |
| a Fe(P)n(A)o(CK)p 392 3483 10 2 v 11 w(ALIGNMENT)p 649 |
| 3548 2 100 v 657 3548 V 111 w Fh(Z)731 3468 y Fd(+)p |
| 801 3548 V 835 3483 a Fk(GetIn)o(tegerv)p 1120 3548 V |
| 100 w Fm(4)p 1280 3548 V 94 w(V)m(alue)g(of)1305 3533 |
| y Fr(PACK)p 1396 3533 14 2 v 15 w(ALIGNMENT)p 1749 3548 |
| 2 100 v 1784 3483 a Fm(4.3)p 1871 3548 V 58 w(pixel-store)p |
| 2109 3548 V 232 3550 1878 2 v 1517 2252 a |
| currentpoint grestore moveto |
| 1517 2252 a |
| 676 2411 a FF(T)l(able)i(6.15.)22 b(Pixels)p eop |
| %%Page: 164 173 |
| 164 172 bop 332 137 a FC(164)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)430 2262 |
| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 430 2262 a 508 2328 a Fm(Get)f(v)n(alue)151 b(T)o(yp)q(e)1123 |
| 2291 y(Get)1123 2328 y(Cmnd)1389 2291 y(Initial)1389 |
| 2328 y(V)m(alue)185 b(Description)156 b(Sec.)51 b(A)o(ttribute)p |
| 444 2344 1913 2 v 443 2444 2 100 v 504 2379 a Fe(MAP)p |
| 575 2379 10 2 v 11 w(COLOR)p 738 2444 2 100 v 746 2444 |
| V 171 w Fh(B)p 1013 2444 V 148 w Fk(GetBo)q(olean)o(v)p |
| 1342 2444 V 83 w Fb(F)m(alse)p 1544 2444 V 80 w Fm(T)m(rue)14 |
| b(if)f(colors)h(are)1570 2429 y(mapp)q(ed)p 2014 2444 |
| V 2049 2379 a(4.3)p 2135 2444 V 100 w(pixel)p 2356 2444 |
| V 444 2446 1913 2 v 443 2545 2 100 v 492 2481 a Fe(MAP)p |
| 563 2481 10 2 v 12 w(STENCIL)p 738 2545 2 100 v 746 2545 |
| V 158 w Fh(B)p 1013 2545 V 148 w Fk(GetBo)q(olean)o(v)p |
| 1342 2545 V 83 w Fb(F)m(alse)p 1544 2545 V 80 w Fm(T)m(rue)g(if)f |
| (stencil)h(v)n(alues)1570 2530 y(are)g(mapp)q(ed)p 2014 |
| 2545 V 2049 2481 a(4.3)p 2135 2545 V 100 w(pixel)p 2356 |
| 2545 V 444 2547 1913 2 v 443 2597 2 50 v 498 2582 a Fe(INDEX)p |
| 598 2582 10 2 v 12 w(SHIFT)p 738 2597 2 50 v 746 2597 |
| V 165 w Fh(Z)p 1013 2597 V 159 w Fk(GetIn)o(tegerv)p |
| 1342 2597 V 126 w Fm(0)p 1544 2597 V 116 w(V)m(alue)f(of)g |
| Fr(INDEX)p 1845 2582 14 2 v 15 w(SHIFT)p 2014 2597 2 |
| 50 v 82 w Fm(4.3)p 2135 2597 V 100 w(pixel)p 2356 2597 |
| V 444 2598 1913 2 v 443 2648 2 50 v 483 2633 a Fe(INDEX)p |
| 583 2633 10 2 v 12 w(OFFSET)p 738 2648 2 50 v 746 2648 |
| V 150 w Fh(Z)p 1013 2648 V 159 w Fk(GetIn)o(tegerv)p |
| 1342 2648 V 126 w Fm(0)p 1544 2648 V 116 w(V)m(alue)g(of)g |
| Fr(INDEX)p 1845 2633 14 2 v 15 w(OFFSET)p 2014 2648 2 |
| 50 v 60 w Fm(4.3)p 2135 2648 V 100 w(pixel)p 2356 2648 |
| V 444 2650 1913 2 v 443 2799 2 150 v 534 2685 a Fg(x)p |
| 553 2685 10 2 v 12 w Fe(SCALE)p 738 2799 2 150 v 746 |
| 2799 V 201 w Fh(R)p 1013 2799 V 176 w Fk(GetFloatv)p |
| 1342 2799 V 147 w Fm(1)p 1544 2799 V 116 w(V)m(alue)g(of)g |
| Fh(x)p 1759 2685 14 2 v 16 w Fr(SCALE)p Fm(;)f Fh(x)i |
| Fm(is)1570 2735 y Fr(RED)p Fm(,)e Fr(GREEN)p Fm(,)h Fr(BLUE)p |
| Fm(,)1570 2784 y Fr(ALPHA)p Fm(,)f(or)i Fr(DEPTH)p 2014 |
| 2799 2 150 v 2049 2685 a Fm(4.3)p 2135 2799 V 100 w(pixel)p |
| 2356 2799 V 444 2801 1913 2 v 443 2950 2 150 v 549 2836 |
| a Fg(x)p 568 2836 10 2 v 11 w Fe(BIAS)p 738 2950 2 150 |
| v 746 2950 V 216 w Fh(R)p 1013 2950 V 176 w Fk(GetFloatv)p |
| 1342 2950 V 147 w Fm(0)p 1544 2950 V 116 w(V)m(alue)f(of)g |
| Fh(x)p 1759 2836 14 2 v 16 w Fr(BIAS)p Fm(;)f Fh(x)i |
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| %%Page: 165 174 |
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| eop |
| %%Page: 166 175 |
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| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
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| Fk(GetIn)o(tegerv)p 1941 2696 V 48 w Fm(DONT)p 2094 2681 |
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| 3062 2696 V 898 2698 2165 2 v 897 2748 2 50 v 1047 2733 |
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| 2748 V 166 w(5.6)p 2842 2748 V 108 w(hin)o(t)p 3062 2748 |
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| V 48 w Fm(DONT)p 2094 2784 13 2 v 15 w(CARE)p 2251 2799 |
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| V 99 w(5.6)p 2842 2799 V 108 w(hin)o(t)p 3062 2799 V |
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| V 267 w Fh(Z)1572 2842 y Fd(3)p 1639 2850 V 1664 2836 |
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| 2720 2850 V 327 w(5.6)p 2842 2850 V 108 w(hin)o(t)p 3062 |
| 2850 V 898 2852 2165 2 v 1274 2462 a |
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| 1274 2462 a 894 |
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| %%Page: 167 176 |
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| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 43 2482 a 285 |
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| y(V)m(alue)229 b(Description)174 b(Sec.)68 b(A)o(ttribute)p |
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| Fk(GetIn)o(tegerv)p 1169 2664 V 124 w Fm(8)p 1394 2664 |
| V 127 w(Maxim)o(um)10 b(n)o(um)o(b)q(er)j(of)1420 2649 |
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| 1169 2968 V 124 w Fm(2)p 1394 2968 V 127 w(Maxim)o(um)c(pro)r(jection) |
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| 2969 2185 2 v 56 3119 2 150 v 142 3004 a Fe(MAX)p 215 |
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| 1169 3119 V 124 w Fm(2)p 1394 3119 V 127 w(Maxim)o(um)c(n)o(um)o(b)q |
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| 1864 3119 V 1890 3004 a(2.10.2)p 2020 3119 V 123 w({)p |
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| 1394 3270 V 127 w(Num)o(b)q(er)h(of)h(bits)f(of)1420 |
| 3205 y(subpixel)h(precision)g(in)f(x)1420 3255 y(&)h(y)p |
| 1864 3270 V 1932 3155 a(3)p 2020 3270 V 168 w({)p 2240 |
| 3270 V 57 3272 2185 2 v 56 3371 2 100 v 219 3306 a Fe(MAX)p |
| 292 3306 10 2 v 12 w(TEXTURE)p 454 3306 V 12 w(SIZE)p |
| 678 3371 2 100 v 687 3371 V 218 w Fh(Z)779 3291 y Fd(+)p |
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| 367 3408 V 12 w(MAP)p 448 3408 V 12 w(T)n(ABLE)p 678 |
| 3522 2 150 v 687 3522 V 188 w Fh(Z)779 3393 y Fd(+)p |
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| b(of)e(a)1420 3458 y Fk(PixelMap)f Fm(translation)1420 |
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| 3559 V 12 w(ST)n(A)o(CK)p 462 3559 V 11 w(DEPTH)p 678 |
| 3624 2 100 v 687 3624 V 170 w Fh(Z)779 3544 y Fd(+)p |
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| 3710 y(call)g(nesting)p 1864 3725 V 1916 3660 a(5.4)p |
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| 397 3761 V 12 w(ORDER)p 678 3826 2 100 v 687 3826 V 231 |
| w Fh(Z)779 3746 y Fd(+)p 867 3826 V 893 3761 a Fk(GetIn)o(tegerv)p |
| 1169 3826 V 124 w Fm(8)p 1394 3826 V 127 w(Maxim)o(um)d(ev)n(aluator) |
| 1420 3811 y(p)q(olynomial)g(order)p 1864 3826 V 1916 |
| 3761 a(5.1)p 2020 3826 V 151 w({)p 2240 3826 V 57 3828 |
| 2185 2 v 56 3927 2 100 v 205 3863 a Fe(MAX)p 278 3863 |
| 10 2 v 11 w(VIEWPOR)n(T)p 457 3863 V 12 w(DIMS)p 678 |
| 3927 2 100 v 687 3927 V 167 w Fm(2)f Fc(\002)h Fh(Z)815 |
| 3848 y Fd(+)p 867 3927 V 893 3863 a Fk(GetIn)o(tegerv)p |
| 1169 3927 V 48 w Fm(see)15 b(2.10.1)p 1394 3927 V 49 |
| w(Maxim)o(um)10 b(viewp)q(ort)1420 3912 y(dimensions)p |
| 1864 3927 V 1890 3863 a(2.10.1)p 2020 3927 V 123 w({)p |
| 2240 3927 V 57 3929 2185 2 v 56 4029 2 100 v 159 3964 |
| a Fe(MAX)p 232 3964 10 2 v 12 w(A)n(TTRIB)p 362 3964 |
| V 10 w(ST)n(A)o(CK)p 475 3964 V 10 w(DEPTH)p 678 4029 |
| 2 100 v 687 4029 V 158 w Fh(Z)779 3949 y Fd(+)p 867 4029 |
| V 893 3964 a Fk(GetIn)o(tegerv)p 1169 4029 V 114 w Fm(16)p |
| 1394 4029 V 116 w(Maxim)o(um)g(depth)15 b(of)e(the)1420 |
| 4014 y(serv)o(er)i(attribute)g(stac)o(k)p 1864 4029 V |
| 1932 3964 a(6)p 2020 4029 V 168 w({)p 2240 4029 V 57 |
| 4030 2185 2 v 56 4130 2 100 v 95 4065 a Fe(MAX)p 168 |
| 4065 10 2 v 12 w(CLIENT)p 296 4065 V 11 w(A)n(TTRIB)p |
| 425 4065 V 10 w(ST)n(A)o(CK)p 538 4065 V 11 w(DEPTH)p |
| 678 4130 2 100 v 687 4130 V 94 w Fh(Z)779 4050 y Fd(+)p |
| 867 4130 V 893 4065 a Fk(GetIn)o(tegerv)p 1169 4130 V |
| 114 w Fm(16)p 1394 4130 V 116 w(Maxim)o(um)10 b(depth)15 |
| b(of)e(the)1420 4115 y(clien)o(t)h(attribute)g(stac)o(k)p |
| 1864 4130 V 1932 4065 a(6)p 2020 4130 V 168 w({)p 2240 |
| 4130 V 57 4132 2185 2 v 1692 2482 a |
| currentpoint grestore moveto |
| 1692 2482 a 371 2641 |
| a FF(T)l(able)i(6.19.)22 b(Impleme)o(n)o(tation)14 b(Dep)q(enden)o(t)h |
| (V)l(alues)p eop |
| %%Page: 168 177 |
| 168 176 bop 332 137 a FC(168)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)582 2354 |
| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 582 2354 a 762 2419 a Fm(Get)f(v)n(alue)208 b(T)o(yp)q(e)1387 |
| 2382 y(Get)1387 2419 y(Cmnd)1627 2382 y(Minim)o(um)1627 |
| 2419 y(V)m(alue)229 b(Description)163 b(Sec.)58 b(A)o(ttribute)p |
| 596 2436 2057 2 v 595 2535 2 100 v 742 2470 a Fe(A)o(UX)p |
| 809 2470 10 2 v 12 w(BUFFERS)p 1092 2535 2 100 v 1101 |
| 2535 V 201 w Fh(Z)1193 2455 y Fd(+)p 1281 2535 V 1316 |
| 2470 a Fk(GetIn)o(tegerv)p 1601 2535 V 133 w Fm(0)p 1826 |
| 2535 V 127 w(Num)o(b)q(er)13 b(of)g(auxiliary)1852 2520 |
| y(bu\013ers)p 2296 2535 V 2321 2470 a(4.2.1)p 2431 2535 |
| V 124 w({)p 2651 2535 V 596 2537 2057 2 v 595 2637 2 |
| 100 v 755 2572 a Fe(R)o(GBA)p 844 2572 10 2 v 12 w(MODE)p |
| 1092 2637 2 100 v 1101 2637 V 228 w Fh(B)p 1281 2637 |
| V 101 w Fk(GetBo)q(olean)o(v)p 1601 2637 V 125 w Fm({)p |
| 1826 2637 V 127 w(T)m(rue)h(if)f(color)g(bu\013ers)1852 |
| 2622 y(store)h(rgba)p 2296 2637 V 2338 2572 a(2.7)p 2431 |
| 2637 V 140 w({)p 2651 2637 V 596 2638 2057 2 v 595 2738 |
| 2 100 v 750 2673 a Fe(INDEX)p 850 2673 10 2 v 12 w(MODE)p |
| 1092 2738 2 100 v 1101 2738 V 222 w Fh(B)p 1281 2738 |
| V 101 w Fk(GetBo)q(olean)o(v)p 1601 2738 V 125 w Fm({)p |
| 1826 2738 V 127 w(T)m(rue)g(if)f(color)g(bu\013ers)1852 |
| 2723 y(store)h(indexes)p 2296 2738 V 2338 2673 a(2.7)p |
| 2431 2738 V 140 w({)p 2651 2738 V 596 2739 2057 2 v 595 |
| 2839 2 100 v 725 2774 a Fe(DOUBLEBUFFER)p 1092 2839 V |
| 1101 2839 V 197 w Fh(B)p 1281 2839 V 101 w Fk(GetBo)q(olean)o(v)p |
| 1601 2839 V 125 w Fm({)p 1826 2839 V 127 w(T)m(rue)g(if)f(fron)o(t)g(&) |
| i(bac)o(k)1852 2824 y(bu\013ers)g(exist)p 2296 2839 V |
| 2321 2774 a(4.2.1)p 2431 2839 V 124 w({)p 2651 2839 V |
| 596 2841 2057 2 v 595 2940 2 100 v 789 2876 a Fe(STEREO)p |
| 1092 2940 V 1101 2940 V 262 w Fh(B)p 1281 2940 V 101 |
| w Fk(GetBo)q(olean)o(v)p 1601 2940 V 125 w Fm({)p 1826 |
| 2940 V 127 w(T)m(rue)f(if)f(left)g(&)i(righ)o(t)1852 |
| 2925 y(bu\013ers)g(exist)p 2296 2940 V 2354 2876 a(6)p |
| 2431 2940 V 157 w({)p 2651 2940 V 596 2942 2057 2 v 595 |
| 3042 2 100 v 703 2977 a Fe(POINT)p 803 2977 10 2 v 11 |
| w(SIZE)p 880 2977 V 12 w(RANGE)p 1092 3042 2 100 v 1101 |
| 3042 V 127 w Fm(2)9 b Fc(\002)h Fh(R)1230 2962 y Fd(+)p |
| 1281 3042 V 1336 2977 a Fk(GetFloatv)p 1601 3042 V 138 |
| w Fm(1,1)p 1826 3042 V 110 w(Range)j(\(lo)g(to)h(hi\))g(of)1852 |
| 3027 y(an)o(tialiased)e(p)q(oin)o(t)i(sizes)p 2296 3042 |
| V 2338 2977 a(3.3)p 2431 3042 V 140 w({)p 2651 3042 V |
| 596 3043 2057 2 v 595 3143 2 100 v 643 3078 a Fe(POINT)p |
| 743 3078 10 2 v 11 w(SIZE)p 820 3078 V 12 w(GRANULARITY)p |
| 1092 3143 2 100 v 1101 3143 V 103 w Fh(R)1194 3063 y |
| Fd(+)p 1281 3143 V 1336 3078 a Fk(GetFloatv)p 1601 3143 |
| V 154 w Fm({)p 1826 3143 V 127 w(An)o(tialiased)f(p)q(oin)o(t)g(size) |
| 1852 3128 y(gran)o(ularit)o(y)p 2296 3143 V 2338 3078 |
| a(3.3)p 2431 3143 V 140 w({)p 2651 3143 V 596 3145 2057 |
| 2 v 595 3244 2 100 v 695 3179 a Fe(LINE)p 769 3179 10 |
| 2 v 12 w(WIDTH)p 889 3179 V 11 w(RANGE)p 1092 3244 2 |
| 100 v 1101 3244 V 119 w Fm(2)c Fc(\002)h Fh(R)1230 3164 |
| y Fd(+)p 1281 3244 V 1336 3179 a Fk(GetFloatv)p 1601 |
| 3244 V 138 w Fm(1,1)p 1826 3244 V 110 w(Range)j(\(lo)g(to)h(hi\))g(of) |
| 1852 3229 y(an)o(tialiased)e(line)i(widths)p 2296 3244 |
| V 2338 3179 a(3.4)p 2431 3244 V 140 w({)p 2651 3244 V |
| 596 3246 2057 2 v 595 3346 2 100 v 635 3281 a Fe(LINE)p |
| 709 3281 10 2 v 11 w(WIDTH)p 828 3281 V 12 w(GRANULARITY)p |
| 1092 3346 2 100 v 1101 3346 V 95 w Fh(R)1194 3266 y Fd(+)p |
| 1281 3346 V 1336 3281 a Fk(GetFloatv)p 1601 3346 V 154 |
| w Fm({)p 1826 3346 V 127 w(An)o(tialiased)f(line)g(width)1852 |
| 3331 y(gran)o(ularit)o(y)p 2296 3346 V 2338 3281 a(3.4)p |
| 2431 3346 V 140 w({)p 2651 3346 V 596 3347 2057 2 v 1576 |
| 2354 a |
| currentpoint grestore moveto |
| 1576 2354 a 520 2513 a FF(T)l(able)j(6.20.)22 |
| b(More)16 b(Implem)o(en)o(tation)d(Dep)q(enden)o(t)j(V)l(alues)p |
| eop |
| %%Page: 169 178 |
| 169 177 bop 1547 137 a FC(169)20 2210 y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 20 2210 a 141 |
| 2276 a Fm(Get)14 b(v)n(alue)130 b(T)o(yp)q(e)660 2239 |
| y(Get)660 2276 y(Cmnd)892 2239 y(Initial)892 2276 y(V)m(alue)163 |
| b(Description)157 b(Sec.)50 b(A)o(ttribute)p 34 2293 |
| 1804 2 v 33 2442 2 150 v 157 2328 a Fe(RED)p 224 2328 |
| 10 2 v 11 w(BITS)p 412 2442 2 150 v 421 2442 V 160 w |
| Fh(Z)495 2313 y Fd(+)p 564 2442 V 590 2328 a Fk(GetIn)o(tegerv)p |
| 866 2442 V 95 w Fm(-)p 1025 2442 V 97 w(Num)o(b)q(er)14 |
| b(of)f(bits)h(p)q(er)g(red)1051 2378 y(comp)q(onen)o(t)f(in)h(color) |
| 1051 2427 y(bu\013ers)p 1495 2442 V 1546 2328 a(4)p 1616 |
| 2442 V 150 w({)p 1837 2442 V 34 2444 1804 2 v 33 2593 |
| 2 150 v 135 2479 a Fe(GREEN)p 244 2479 10 2 v 13 w(BITS)p |
| 412 2593 2 150 v 421 2593 V 138 w Fh(Z)495 2464 y Fd(+)p |
| 564 2593 V 590 2479 a Fk(GetIn)o(tegerv)p 866 2593 V |
| 95 w Fm(-)p 1025 2593 V 97 w(Num)o(b)q(er)g(of)f(bits)h(p)q(er)1051 |
| 2529 y(green)h(comp)q(onen)o(t)e(in)1051 2579 y(color)h(bu\013ers)p |
| 1495 2593 V 1546 2479 a(4)p 1616 2593 V 150 w({)p 1837 |
| 2593 V 34 2595 1804 2 v 33 2745 2 150 v 148 2630 a Fe(BLUE)p |
| 232 2630 10 2 v 12 w(BITS)p 412 2745 2 150 v 421 2745 |
| V 151 w Fh(Z)495 2615 y Fd(+)p 564 2745 V 590 2630 a |
| Fk(GetIn)o(tegerv)p 866 2745 V 95 w Fm(-)p 1025 2745 |
| V 97 w(Num)o(b)q(er)g(of)f(bits)h(p)q(er)1051 2680 y(blue)g(comp)q |
| (onen)o(t)f(in)1051 2730 y(color)h(bu\013ers)p 1495 2745 |
| V 1546 2630 a(4)p 1616 2745 V 150 w({)p 1837 2745 V 34 |
| 2746 1804 2 v 33 2896 2 150 v 137 2781 a Fe(ALPHA)p 244 |
| 2781 10 2 v 12 w(BITS)p 412 2896 2 150 v 421 2896 V 139 |
| w Fh(Z)495 2766 y Fd(+)p 564 2896 V 590 2781 a Fk(GetIn)o(tegerv)p |
| 866 2896 V 95 w Fm(-)p 1025 2896 V 97 w(Num)o(b)q(er)g(of)f(bits)h(p)q |
| (er)1051 2831 y(alpha)f(comp)q(onen)o(t)g(in)1051 2881 |
| y(color)h(bu\013ers)p 1495 2896 V 1546 2781 a(4)p 1616 |
| 2896 V 150 w({)p 1837 2896 V 34 2897 1804 2 v 33 2997 |
| 2 100 v 140 2932 a Fe(INDEX)p 240 2932 10 2 v 12 w(BITS)p |
| 412 2997 2 100 v 421 2997 V 143 w Fh(Z)495 2917 y Fd(+)p |
| 564 2997 V 590 2932 a Fk(GetIn)o(tegerv)p 866 2997 V |
| 95 w Fm(-)p 1025 2997 V 97 w(Num)o(b)q(er)g(of)f(bits)h(p)q(er)1051 |
| 2982 y(index)g(in)f(color)h(bu\013ers)p 1495 2997 V 1546 |
| 2932 a(4)p 1616 2997 V 150 w({)p 1837 2997 V 34 2999 |
| 1804 2 v 33 3098 2 100 v 136 3034 a Fe(DEPTH)p 245 3034 |
| 10 2 v 11 w(BITS)p 412 3098 2 100 v 421 3098 V 139 w |
| Fh(Z)495 3018 y Fd(+)p 564 3098 V 590 3034 a Fk(GetIn)o(tegerv)p |
| 866 3098 V 95 w Fm(-)p 1025 3098 V 97 w(Num)o(b)q(er)g(of)f(depth)1051 |
| 3083 y(bu\013er)i(planes)p 1495 3098 V 1546 3034 a(4)p |
| 1616 3098 V 150 w({)p 1837 3098 V 34 3100 1804 2 v 33 |
| 3200 2 100 v 123 3135 a Fe(STENCIL)p 258 3135 10 2 v |
| 11 w(BITS)p 412 3200 2 100 v 421 3200 V 126 w Fh(Z)495 |
| 3120 y Fd(+)p 564 3200 V 590 3135 a Fk(GetIn)o(tegerv)p |
| 866 3200 V 95 w Fm(-)p 1025 3200 V 97 w(Num)o(b)q(er)f(of)f(stencil) |
| 1051 3185 y(planes)p 1495 3200 V 1546 3135 a(4)p 1616 |
| 3200 V 150 w({)p 1837 3200 V 34 3201 1804 2 v 33 3351 |
| 2 150 v 94 3236 a Fe(A)o(CCUM)p 210 3236 10 2 v 12 w(RED)p |
| 287 3236 V 11 w(BITS)p 412 3351 2 150 v 421 3351 V 97 |
| w Fh(Z)495 3221 y Fd(+)p 564 3351 V 590 3236 a Fk(GetIn)o(tegerv)p |
| 866 3351 V 95 w Fm(-)p 1025 3351 V 97 w(Num)o(b)q(er)h(of)f(bits)h(p)q |
| (er)g(red)1051 3286 y(comp)q(onen)o(t)f(in)h(the)1051 |
| 3336 y(accum)o(ulation)e(bu\013er)p 1495 3351 V 1546 |
| 3236 a(4)p 1616 3351 V 150 w({)p 1837 3351 V 34 3352 |
| 1804 2 v 33 3552 2 200 v 73 3387 a Fe(A)o(CCUM)p 189 |
| 3387 10 2 v 11 w(GREEN)p 307 3387 V 13 w(BITS)p 412 3552 |
| 2 200 v 421 3552 V 75 w Fh(Z)495 3372 y Fd(+)p 564 3552 |
| V 590 3387 a Fk(GetIn)o(tegerv)p 866 3552 V 95 w Fm(-)p |
| 1025 3552 V 97 w(Num)o(b)q(er)i(of)f(bits)h(p)q(er)1051 |
| 3437 y(green)h(comp)q(onen)o(t)e(in)1051 3487 y(the)i(accum)o(ulation) |
| 1051 3537 y(bu\013er)p 1495 3552 V 1546 3387 a(4)p 1616 |
| 3552 V 150 w({)p 1837 3552 V 34 3553 1804 2 v 33 3703 |
| 2 150 v 86 3588 a Fe(A)o(CCUM)p 202 3588 10 2 v 11 w(BLUE)p |
| 295 3588 V 12 w(BITS)p 412 3703 2 150 v 421 3703 V 88 |
| w Fh(Z)495 3573 y Fd(+)p 564 3703 V 590 3588 a Fk(GetIn)o(tegerv)p |
| 866 3703 V 95 w Fm(-)p 1025 3703 V 97 w(Num)o(b)q(er)f(of)f(bits)h(p)q |
| (er)1051 3638 y(blue)g(comp)q(onen)o(t)f(in)h(the)1051 |
| 3688 y(accum)o(ulation)e(bu\013er)p 1495 3703 V 1546 |
| 3588 a(4)p 1616 3703 V 150 w({)p 1837 3703 V 34 3704 |
| 1804 2 v 33 3904 2 200 v 74 3739 a Fe(A)o(CCUM)p 190 |
| 3739 10 2 v 11 w(ALPHA)p 306 3739 V 12 w(BITS)p 412 3904 |
| 2 200 v 421 3904 V 77 w Fh(Z)495 3724 y Fd(+)p 564 3904 |
| V 590 3739 a Fk(GetIn)o(tegerv)p 866 3904 V 95 w Fm(-)p |
| 1025 3904 V 97 w(Num)o(b)q(er)i(of)f(bits)h(p)q(er)1051 |
| 3789 y(alpha)f(comp)q(onen)o(t)g(in)1051 3839 y(the)i(accum)o(ulation) |
| 1051 3889 y(bu\013er)p 1495 3904 V 1546 3739 a(4)p 1616 |
| 3904 V 150 w({)p 1837 3904 V 34 3905 1804 2 v 1715 2210 |
| a |
| currentpoint grestore moveto |
| 1715 2210 a 303 2370 a FF(T)l(able)h(6.21.)22 b(Implem)o(en)o(t)o |
| (ation)14 b(Dep)q(enden)o(t)i(Pixel)f(Depths)p eop |
| %%Page: 170 179 |
| 170 178 bop 332 137 a FC(170)417 b Fx(CHAPTER)16 b(6.)34 |
| b(ST)l(A)l(TE)16 b(AND)f(ST)l(A)l(TE)g(REQUESTS)402 2339 |
| y |
| gsave currentpoint currentpoint translate 270 rotate neg exch neg exch |
| translate |
| 402 2339 a 603 2405 a Fm(Get)f(v)n(alue)236 b(T)o(yp)q(e)1256 |
| 2367 y(Get)1256 2405 y(Cmnd)1500 2367 y(Initial)1500 |
| 2405 y(V)m(alue)175 b(Description)156 b(Sec.)50 b(A)o(ttribute)p |
| 416 2421 2042 2 v 415 2471 2 50 v 613 2456 a Fe(LIST)p |
| 684 2456 10 2 v 10 w(BASE)p 955 2471 2 50 v 963 2471 |
| V 260 w Fh(Z)1063 2441 y Fd(+)p 1157 2471 V 1185 2456 |
| a Fk(GetIn)o(tegerv)p 1464 2471 V 105 w Fm(0)p 1644 2471 |
| V 104 w(Setting)14 b(of)f Fk(ListBase)p 2114 2471 V 110 |
| w Fm(5.4)p 2236 2471 V 116 w(list)p 2456 2471 V 416 2473 |
| 2042 2 v 415 2622 2 150 v 604 2507 a Fe(LIST)p 675 2507 |
| 10 2 v 10 w(INDEX)p 955 2622 2 150 v 963 2622 V 251 w |
| Fh(Z)1063 2492 y Fd(+)p 1157 2622 V 1185 2507 a Fk(GetIn)o(tegerv)p |
| 1464 2622 V 105 w Fm(0)p 1644 2622 V 104 w(n)o(um)o(b)q(er)g(of)h |
| (displa)o(y)f(list)1670 2557 y(under)i(construction;)f(0)1670 |
| 2607 y(if)f(none)p 2114 2622 V 2149 2507 a(5.4)p 2236 |
| 2622 V 133 w({)p 2456 2622 V 416 2624 2042 2 v 415 2773 |
| 2 150 v 606 2659 a Fe(LIST)p 677 2659 10 2 v 11 w(MODE)p |
| 955 2773 2 150 v 963 2773 V 253 w Fh(Z)1063 2644 y Fd(+)p |
| 1157 2773 V 1185 2659 a Fk(GetIn)o(tegerv)p 1464 2773 |
| V 105 w Fm(0)p 1644 2773 V 104 w(Mo)q(de)i(of)e(displa)o(y)g(list)1670 |
| 2708 y(under)i(construction;)1670 2758 y(unde\014ned)g(if)e(none)p |
| 2114 2773 V 2149 2659 a(5.4)p 2236 2773 V 133 w({)p 2456 |
| 2773 V 416 2775 2042 2 v 415 2825 2 50 v 685 2810 a Fe({)p |
| 955 2825 V 963 2825 V 289 w Fm(16)c Fc(\003)g(\002)p |
| Fh(A)p 1157 2825 V 166 w Fk({)p 1464 2825 V 176 w Fm(empt)o(y)p |
| 1644 2825 V 57 w(Serv)o(er)15 b(attribute)g(stac)o(k)p |
| 2114 2825 V 100 w(6)p 2236 2825 V 150 w({)p 2456 2825 |
| V 416 2826 2042 2 v 415 2926 2 100 v 518 2861 a Fe(A)n(TTRIB)p |
| 638 2861 10 2 v 10 w(ST)n(A)o(CK)p 751 2861 V 11 w(DEPTH)p |
| 955 2926 2 100 v 963 2926 V 165 w Fh(Z)1063 2846 y Fd(+)p |
| 1157 2926 V 1185 2861 a Fk(GetIn)o(tegerv)p 1464 2926 |
| V 105 w Fm(0)p 1644 2926 V 104 w(Serv)o(er)g(attribute)g(stac)o(k)1670 |
| 2911 y(p)q(oin)o(ter)p 2114 2926 V 2165 2861 a(6)p 2236 |
| 2926 V 150 w({)p 2456 2926 V 416 2928 2042 2 v 415 2977 |
| 2 50 v 685 2962 a Fe({)p 955 2977 V 963 2977 V 289 w |
| Fm(16)9 b Fc(\003)g(\002)p Fh(A)p 1157 2977 V 166 w Fk({)p |
| 1464 2977 V 176 w Fm(empt)o(y)p 1644 2977 V 57 w(Clien)o(t)14 |
| b(attribute)g(stac)o(k)p 2114 2977 V 104 w(6)p 2236 2977 |
| V 150 w({)p 2456 2977 V 416 2979 2042 2 v 415 3079 2 |
| 100 v 455 3014 a Fe(CLIENT)p 573 3014 10 2 v 10 w(A)n(TTRIB)p |
| 701 3014 V 11 w(ST)n(A)o(CK)p 815 3014 V 10 w(DEPTH)p |
| 955 3079 2 100 v 963 3079 V 102 w Fh(Z)1063 2999 y Fd(+)p |
| 1157 3079 V 1185 3014 a Fk(GetIn)o(tegerv)p 1464 3079 |
| V 105 w Fm(0)p 1644 3079 V 104 w(Clien)o(t)g(attribute)g(stac)o(k)1670 |
| 3064 y(p)q(oin)o(ter)p 2114 3079 V 2165 3014 a(6)p 2236 |
| 3079 V 150 w({)p 2456 3079 V 416 3080 2042 2 v 415 3130 |
| 2 50 v 531 3115 a Fe(NAME)p 624 3115 10 2 v 12 w(ST)n(A)o(CK)p |
| 739 3115 V 10 w(DEPTH)p 955 3130 2 50 v 963 3130 V 178 |
| w Fh(Z)1063 3100 y Fd(+)p 1157 3130 V 1185 3115 a Fk(GetIn)o(tegerv)p |
| 1464 3130 V 105 w Fm(0)p 1644 3130 V 104 w(Name)f(stac)o(k)h(depth)p |
| 2114 3130 V 151 w(5.2)p 2236 3130 V 133 w({)p 2456 3130 |
| V 416 3132 2042 2 v 415 3182 2 50 v 575 3167 a Fe(RENDER)p |
| 706 3167 10 2 v 12 w(MODE)p 955 3182 2 50 v 963 3182 |
| V 229 w Fh(Z)1066 3173 y Fd(3)p 1157 3182 V 1185 3167 |
| a Fk(GetIn)o(tegerv)p 1464 3182 V 50 w Fr(RENDER)p 1644 |
| 3182 V 48 w Fk(RenderMo)q(de)e Fm(setting)p 2114 3182 |
| V 72 w(5.2)p 2236 3182 V 133 w({)p 2456 3182 V 416 3183 |
| 2042 2 v 415 3283 2 100 v 461 3218 a Fe(SELECTION)p 639 |
| 3218 10 2 v 11 w(BUFFER)p 775 3218 V 11 w(POINTER)p 955 |
| 3283 2 100 v 963 3283 V 120 w Fh(Y)p 1157 3283 V 115 |
| w Fk(GetP)o(oin)o(t)o(erv)p 1464 3283 V 102 w Fm(0)p |
| 1644 3283 V 104 w(Selection)i(bu\013er)1670 3268 y(p)q(oin)o(ter)p |
| 2114 3283 V 2149 3218 a(5.2)p 2236 3283 V 94 w(select)p |
| 2456 3283 V 416 3285 2042 2 v 415 3334 2 50 v 498 3319 |
| a Fe(SELECTION)p 676 3319 10 2 v 11 w(BUFFER)p 812 3319 |
| V 11 w(SIZE)p 955 3334 2 50 v 963 3334 V 145 w Fh(Z)1063 |
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| %%Page: 171 180 |
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| %%Page: 172 181 |
| 172 180 bop 332 137 a FC(172)792 b Fx(APPENDIX)15 b(A.)30 |
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| %%Page: 173 182 |
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| %%Page: 174 183 |
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| 1541 y(is)g(made)f(to)g(the)g(blending)i(parameters.)403 |
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| g(represen)o(ted)h(using)g(di\013eren)o(t)f(formats)332 |
| 1654 y(in)k(di\013eren)o(t)g(renderers)f(\(hardw)o(are)f(and)i(soft)o |
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| 1710 y(ma)o(y)i(c)o(hange)h(subtly)g(when)g(renderers)h(are)e(sw)o(app) |
| q(ed.)28 b(This)18 b(is)g(the)g(t)o(yp)q(e)g(of)f(state)332 |
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| (oid.)p 332 2445 598 2 v 383 2472 a Fp(\003)401 2488 |
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| (Consortium.)p eop |
| %%Page: 175 184 |
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| b(Absence)16 b(of)e(an)g(observ)m(ation)h(from)f(this)h(list)g(in)h(no) |
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| 1247 y(1.)22 b(The)28 b Fr(CURRENT)p 497 1247 14 2 v |
| 14 w(RASTER)p 643 1247 V 15 w(TEXTURE)p 812 1247 V 14 |
| w(COORDINATES)d FC(m)o(ust)j(b)q(e)g(main)o(tained)h(cor-)234 |
| 1304 y(rectly)22 b(at)g(all)h(times,)g(including)i(p)q(erio)q(ds)e |
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| b FC(or)g(the)g Fz(Finish)h FC(commands.)43 b(All)24 |
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| FC(,)d(all)j(of)f(the)g(p)q(oin)o(ts)g(or)f(lines)j(generated)e(b)o(y)g |
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| 1535 y(12.)22 b Fz(Material)15 b FC(and)f Fz(ColorMaterial)g |
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| %%Page: 178 187 |
| 178 186 bop 332 605 a Ft(App)s(endix)33 b(C)332 820 y |
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| %%Page: 179 188 |
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| b(Shifted)21 b(depth)f(v)m(alues)g(allo)o(w)g(copla-)120 |
| 558 y(nar)14 b(geometry)l(,)g(esp)q(ecially)j(facet)d(outlines,)h(to)f |
| (b)q(e)h(rendered)g(without)g(depth)g(bu\013er)120 615 |
| y(artifacts.)k(They)d(ma)o(y)e(also)i(b)q(e)f(used)h(b)o(y)f(future)h |
| (shado)o(w)e(generation)i(algorithms.)191 671 y(The)11 |
| b(additions)h(matc)o(h)f(those)g(of)f(the)h Fr(EXT)p |
| 912 671 14 2 v 15 w(polygon)p 1081 671 V 15 w(offset)e |
| FC(extension,)k(with)e(t)o(w)o(o)120 728 y(exceptions.)23 |
| b(First,)15 b(the)h(o\013set)f(is)h(enabled)i(separately)e(for)f |
| Fr(POINT)p FC(,)f Fr(LINE)p FC(,)h(and)h Fr(FILL)120 |
| 784 y FC(rasterization)f(mo)q(des,)g(all)h(sharing)g(a)f(single)h |
| (a\016ne)f(function)h(de\014nition.)22 b(\(Shifting)120 |
| 841 y(the)12 b(depth)f(v)m(alues)i(of)d(the)h(outline)i(fragmen)o(ts,)d |
| (instead)i(of)f(the)g(\014ll)h(fragmen)o(ts,)f(allo)o(ws)120 |
| 897 y(the)19 b(con)o(ten)o(ts)f(of)g(the)h(depth)g(bu\013er)f(to)g(b)q |
| (e)h(main)o(tained)h(correctly)l(.\))30 b(Second,)20 |
| b(the)120 954 y(o\013set)14 b(bias)h(is)g(sp)q(eci\014ed)i(in)e(units)h |
| (of)e(depth)h(bu\013er)g(resolution,)g(rather)f(than)g(in)i(the)120 |
| 1010 y([0,1])e(depth)i(range.)120 1156 y Fs(C.3)67 b(Logical)23 |
| b(Op)r(eration)120 1258 y FC(F)l(ragmen)o(ts)18 b(generated)g(b)o(y)h |
| (R)o(GBA)f(rendering)i(ma)o(y)d(b)q(e)j(merged)e(in)o(to)h(the)f |
| (frame-)120 1315 y(bu\013er)j(using)h(a)e(logical)i(op)q(eration,)g |
| (just)e(as)h(color)f(index)i(fragmen)o(ts)e(are)g(in)i(GL)120 |
| 1371 y(v)o(ersion)17 b(1.0.)k(Blending)d(is)f(disabled)g(during)g(suc)o |
| (h)g(op)q(eration)f(b)q(ecause)h(it)f(is)h(rarely)120 |
| 1428 y(desired,)i(b)q(ecause)f(man)o(y)f(systems)g(could)h(not)f(supp)q |
| (ort)g(it,)h(and)f(to)g(matc)o(h)f(the)h(se-)120 1484 |
| y(man)o(tics)11 b(of)f(the)g Fr(EXT)p 473 1484 V 15 w(blend)p |
| 598 1484 V 15 w(logic)p 723 1484 V 14 w(op)g FC(extension,)i(on)e(whic) |
| o(h)i(this)e(addition)i(is)f(lo)q(osely)120 1540 y(based.)120 |
| 1686 y Fs(C.4)67 b(T)-6 b(exture)23 b(Image)e(F)-6 b(ormats)120 |
| 1789 y FC(Stored)17 b(texture)g(arra)o(ys)f(ha)o(v)o(e)h(a)g(format,)e |
| (kno)o(wn)i(as)g(the)g Fv(internal)g(format)p FC(,)h(rather)120 |
| 1845 y(than)f(a)g(simple)i(coun)o(t)e(of)g(comp)q(onen)o(ts.)26 |
| b(The)18 b(in)o(ternal)g(format)e(is)h(represen)o(ted)h(as)120 |
| 1901 y(a)i(single)h(en)o(umerated)g(v)m(alue,)h(indicating)g(b)q(oth)e |
| (the)g(organization)g(of)g(the)g(image)120 1958 y(data)13 |
| b(\()p Fr(LUMINANCE)p FC(,)e Fr(RGB)p FC(,)h(etc.\))19 |
| b(and)14 b(the)f(n)o(um)o(b)q(er)h(of)f(bits)h(of)f(storage)f(for)h |
| (eac)o(h)h(image)120 2014 y(comp)q(onen)o(t.)20 b(Clien)o(ts)c(can)f |
| (use)h(the)f(in)o(ternal)g(format)f(sp)q(eci\014cation)j(to)d(suggest)h |
| (the)120 2071 y(desired)20 b(storage)e(precision)i(of)e(texture)g |
| (images.)30 b(New)19 b Fv(b)n(ase)g(formats)p FC(,)g |
| Fr(ALPHA)f FC(and)120 2127 y Fr(INTENSITY)p FC(,)g(pro)o(vide)j(new)f |
| (texture)g(en)o(vironmen)o(t)g(op)q(erations.)34 b(These)21 |
| b(additions)120 2184 y(matc)o(h)15 b(those)g(of)g(a)g(subset)g(of)g |
| (the)g Fr(EXT)p 805 2184 V 15 w(texture)f FC(extension.)120 |
| 2329 y Fs(C.5)67 b(T)-6 b(exture)23 b(Replace)f(En)n(vironmen)n(t)120 |
| 2432 y FC(A)13 b(common)f(use)h(of)f(texture)g(mapping)h(is)g(to)f |
| (replace)h(the)g(color)f(v)m(alues)i(of)e(generated)120 |
| 2488 y(fragmen)o(ts)17 b(with)h(texture)g(color)g(data.)27 |
| b(This)19 b(could)g(b)q(e)f(sp)q(eci\014ed)i(only)f(indirectly)p |
| eop |
| %%Page: 180 189 |
| 180 188 bop 332 137 a FC(180)806 b Fx(APPENDIX)15 b(C.)30 |
| b(VERSION)16 b(1.1)332 286 y FC(in)22 b(GL)e(v)o(ersion)h(1.0,)g(whic)o |
| (h)h(required)g(that)e(clien)o(t)i(sp)q(eci\014ed)h(\\white")d |
| (geometry)332 343 y(b)q(e)e(mo)q(dulated)g(b)o(y)f(a)g(texture.)26 |
| b(GL)17 b(v)o(ersion)h(1.1)e(allo)o(ws)i(suc)o(h)f(replacemen)o(t)h(to) |
| f(b)q(e)332 399 y(sp)q(eci\014ed)e(explicitly)l(,)h(p)q(ossibly)f |
| (impro)o(ving)e(p)q(erformance.)20 b(These)13 b(additions)h(matc)o(h) |
| 332 456 y(those)h(of)g(a)g(subset)g(of)g(the)g Fr(EXT)p |
| 879 456 14 2 v 15 w(texture)f FC(extension.)332 627 y |
| Fs(C.6)66 b(T)-6 b(exture)24 b(Pro)n(xies)332 738 y FC(T)l(exture)14 |
| b(pro)o(xies)g(allo)o(w)g(a)g(GL)f(implemen)o(tation)i(to)f(adv)o |
| (ertise)f(di\013eren)o(t)i(maxim)o(um)332 795 y(texture)10 |
| b(image)h(sizes)g(as)f(a)h(function)g(of)f(some)g(other)g(texture)h |
| (parameters,)f(esp)q(ecially)332 851 y(of)16 b(the)h(in)o(ternal)g |
| (image)g(format.)23 b(Clien)o(ts)17 b(ma)o(y)f(use)h(the)g(pro)o(xy)f |
| (query)h(mec)o(hanism)332 907 y(to)g(tailor)g(their)g(use)h(of)f |
| (texture)g(resources)g(at)f(run)i(time.)26 b(The)17 b(pro)o(xy)g(in)o |
| (terface)g(is)332 964 y(designed)e(to)d(allo)o(w)h(suc)o(h)h(queries)g |
| (without)f(adding)h(new)f(routines)g(to)g(the)g(GL)g(in)o(ter-)332 |
| 1020 y(face.)20 b(These)15 b(additions)g(matc)o(h)f(those)g(of)g(a)h |
| (subset)f(of)g(the)h Fr(EXT)p 1449 1020 V 15 w(texture)e |
| FC(extension,)332 1077 y(except)18 b(that)f(implemen)o(tations)i |
| (return)f(allo)q(cation)g(information)g(consisten)o(t)g(with)332 |
| 1133 y(supp)q(ort)d(for)g(complete)h(mipmap)g(arra)o(ys.)332 |
| 1305 y Fs(C.7)66 b(Cop)n(y)23 b(T)-6 b(exture)23 b(and)g(Subtexture)332 |
| 1416 y FC(T)l(exture)d(arra)o(y)e(data)h(can)h(b)q(e)h(sp)q(eci\014ed)h |
| (from)c(framebu\013er)i(memory)l(,)g(as)f(w)o(ell)i(as)332 |
| 1472 y(from)f(clien)o(t)h(memory)l(,)g(and)f(rectangular)h(subregions)g |
| (of)e(texture)h(arra)o(ys)f(can)i(b)q(e)332 1528 y(rede\014ned)c |
| (either)f(from)f(clien)o(t)h(or)f(framebu\013er)g(memory)l(.)20 |
| b(These)c(additions)g(matc)o(h)332 1585 y(those)f(de\014ned)i(b)o(y)e |
| (the)g Fr(EXT)p 818 1585 V 15 w(copy)p 921 1585 V 15 |
| w(texture)f FC(and)h Fr(EXT)p 1258 1585 V 15 w(subtexture)e |
| FC(extensions.)332 1756 y Fs(C.8)66 b(T)-6 b(exture)24 |
| b(Ob)t(jects)332 1867 y FC(A)17 b(set)g(of)g(texture)g(arra)o(ys)f(and) |
| i(their)g(related)f(texture)g(state)g(can)g(b)q(e)h(treated)f(as)g(a) |
| 332 1924 y(single)i(ob)s(ject.)28 b(Suc)o(h)18 b(treatmen)o(t)f(allo)o |
| (ws)h(for)g(greater)f(implemen)o(tation)i(e\016ciency)332 |
| 1980 y(when)c(m)o(ultiple)i(arra)o(ys)c(are)i(used.)20 |
| b(In)15 b(conjunction)h(with)f(the)g(subtexture)g(capabil-)332 |
| 2037 y(it)o(y)l(,)f(it)g(also)g(allo)o(ws)f(clien)o(ts)i(to)e(mak)o(e)h |
| (gradual)f(c)o(hanges)h(to)f(existing)i(texture)e(arra)o(ys,)332 |
| 2093 y(rather)f(than)h(completely)i(rede\014ning)f(them.)19 |
| b(These)14 b(additions)g(matc)o(h)e(those)h(of)f(the)332 |
| 2149 y Fr(EXT)p 401 2149 V 15 w(texture)p 570 2149 V |
| 14 w(object)h FC(extension,)h(with)g(sligh)o(t)g(additions)g(to)f(the)h |
| (texture)f(residency)332 2206 y(seman)o(tics.)332 2377 |
| y Fs(C.9)66 b(Other)23 b(Changes)388 2488 y FC(1.)f(Color)15 |
| b(indices)i(ma)o(y)d(no)o(w)h(b)q(e)h(sp)q(eci\014ed)h(as)e(unsigned)i |
| (b)o(ytes.)p eop |
| %%Page: 181 190 |
| 181 189 bop 120 137 a Fx(C.10.)34 b(A)o(CKNO)o(WLEDGEMENTS)746 |
| b FC(181)176 286 y(2.)22 b(T)l(exture)11 b(co)q(ordinates)f |
| Fy(s)p FC(,)i Fy(t)p FC(,)f(and)g Fy(r)g FC(are)f(divided)i(b)o(y)f |
| Fy(q)h FC(during)f(the)g(rasterization)234 343 y(of)f(p)q(oin)o(ts,)i |
| (pixel)h(rectangles,)e(and)g(bitmaps.)19 b(This)11 b(division)i(w)o(as) |
| d(do)q(cumen)o(ted)234 399 y(only)16 b(for)e(lines)j(and)f(p)q(olygons) |
| f(in)h(the)f(1.0)g(v)o(ersion.)176 495 y(3.)22 b(The)15 |
| b(line)i(rasterization)f(algorithm)f(w)o(as)f(c)o(hanged)i(so)f(that)f |
| (v)o(ertical)i(lines)h(on)234 551 y(pixel)g(b)q(orders)e(rasterize)h |
| (correctly)l(.)176 647 y(4.)22 b(Separate)e(pixel)i(transfer)e |
| (discussions)i(in)f(c)o(hapter)f(3)g(and)h(c)o(hapter)f(4)g(w)o(ere)234 |
| 704 y(com)o(bined)c(in)o(to)f(a)g(single)i(discussion)g(in)f(c)o |
| (hapter)f(3.)176 799 y(5.)22 b(T)l(exture)17 b(alpha)h(v)m(alues)g(are) |
| f(returned)g(as)g(1.0)f(if)h(there)g(is)h(no)f(alpha)h(c)o(hannel)234 |
| 856 y(in)d(the)g(texture)f(arra)o(y)l(.)k(This)d(b)q(eha)o(vior)g(w)o |
| (as)f(unsp)q(eci\014ed)j(in)e(the)f(1.0)g(v)o(ersion,)234 |
| 912 y(and)h(w)o(as)g(incorrectly)h(do)q(cumen)o(ted)g(in)g(the)f |
| (reference)h(man)o(ual.)176 1008 y(6.)22 b(F)l(og)15 |
| b(start)e(and)j(end)g(v)m(alues)g(ma)o(y)f(no)o(w)f(b)q(e)i(negativ)o |
| (e.)176 1103 y(7.)22 b(Ev)m(aluated)15 b(color)f(v)m(alues)h(direct)f |
| (the)g(ev)m(aluation)h(of)f(the)g(ligh)o(ting)h(equation)f(if)234 |
| 1160 y Fz(ColorMaterial)j FC(is)e(enabled.)120 1306 y |
| Fs(C.10)66 b(Ac)n(kno)n(wledgemen)n(ts)120 1408 y FC(Op)q(enGL)17 |
| b(1.1)e(is)h(the)g(result)g(of)f(the)h(con)o(tributions)g(of)f(man)o(y) |
| g(p)q(eople,)i(represen)o(ting)120 1465 y(a)h(cross)f(section)i(of)e |
| (the)h(computer)g(industry)l(.)29 b(F)l(ollo)o(wing)19 |
| b(is)f(a)g(partial)g(list)h(of)f(the)120 1521 y(con)o(tributors,)i |
| (including)i(the)d(compan)o(y)g(that)g(they)g(represen)o(ted)h(at)e |
| (the)i(time)f(of)120 1578 y(their)d(con)o(tribution:)191 |
| 1634 y(Kurt)f(Ak)o(eley)l(,)h(Silicon)h(Graphics)191 |
| 1691 y(Bill)g(Armstrong,)d(Ev)m(ans)h(&)h(Sutherland)191 |
| 1748 y(Andy)g(Bigos,)f(3Dlabs)191 1805 y(P)o(at)f(Bro)o(wn,)h(IBM)191 |
| 1862 y(Jim)h(Cobb,)f(Ev)m(ans)g(&)h(Sutherland)191 1919 |
| y(Dic)o(k)f(Coulter,)g(Digital)h(Equipmen)o(t)191 1976 |
| y(Bruce)g(D'Amora,)d(GE)i(Medical)h(Systems)191 2033 |
| y(John)g(Dennis,)f(Digital)h(Equipmen)o(t)191 2090 y(F)l(red)f(Fisher,) |
| h(Accel)g(Graphics)191 2147 y(Chris)g(F)l(razier,)f(Silicon)i(Graphics) |
| 191 2204 y(T)l(o)q(dd)f(F)l(razier,)f(Ev)m(ans)g(&)h(Sutherland)191 |
| 2261 y(Tim)f(F)l(reese,)g(NCD)191 2317 y(Ken)h(Garnett,)e(NCD)191 |
| 2374 y(Mik)o(e)h(Hec)o(k,)g(T)l(emplate)h(Graphics)g(Soft)o(w)o(are)191 |
| 2431 y(Da)o(v)o(e)e(Higgins,)i(IBM)191 2488 y(Phil)h(Huxley)l(,)f |
| (3Dlabs)p eop |
| %%Page: 182 191 |
| 182 190 bop 332 137 a FC(182)806 b Fx(APPENDIX)15 b(C.)30 |
| b(VERSION)16 b(1.1)403 286 y FC(Dale)f(Kirkland,)h(In)o(tergraph)403 |
| 343 y(Ho)q(c)o(k)f(San)g(Lee,)h(Microsoft)403 399 y(Kevin)g(LeF)l(eb)o |
| (vre,)g(Hewlett)f(P)o(ac)o(k)m(ard)403 456 y(Jim)h(Miller,)g(IBM)403 |
| 512 y(Tim)f(Misner,)g(SunSoft)403 569 y(Jerem)o(y)g(Morris,)f(3Dlabs) |
| 403 625 y(Israel)i(Pink)m(as,)f(In)o(tel)403 682 y(Bimal)h(P)o(o)q |
| (ddar,)e(IBM)403 738 y(Lyle)i(Ramsha)o(w,)e(Digital)i(Equipmen)o(t)403 |
| 795 y(Randi)g(Rost,)f(Hewlett)g(P)o(ac)o(k)m(ard)403 |
| 851 y(John)g(Sc)o(himpf,)h(Silicon)i(Graphics)403 907 |
| y(Mark)c(Segal,)h(Silicon)j(Graphics)403 964 y(Igor)c(Sin)o(y)o(ak,)i |
| (In)o(tel)403 1020 y(Je\013)f(Stev)o(enson,)g(Hewlett)g(P)o(ac)o(k)m |
| (ard)403 1077 y(Bill)i(Sw)o(eeney)l(,)f(SunSoft)403 1133 |
| y(Kelvin)h(Thompson,)d(P)o(ortable)h(Graphics)403 1190 |
| y(Neil)h(T)l(rev)o(ett,)e(3Dlabs)403 1246 y(Linas)i(V)l(epstas,)f(IBM) |
| 403 1303 y(Andy)g(V)l(esp)q(er,)h(Digital)g(Equipmen)o(t)403 |
| 1359 y(Henri)g(W)l(arren,)e(Megatek)403 1416 y(P)o(aula)h(W)l(omac)o |
| (k,)f(Silicon)j(Graphics)403 1472 y(Mason)d(W)l(o)q(o,)h(Silicon)i |
| (Graphics)403 1528 y(Stev)o(e)e(W)l(righ)o(t,)f(Microsoft)p |
| eop |
| %%Page: 183 192 |
| 183 191 bop 120 520 a FA(Index)39 b(of)f(GL)h(calls)120 |
| 732 y FC(Accum,)16 b(120,)e(121)120 788 y(AlphaF)l(unc,)j(110)120 |
| 845 y(AreT)l(exturesResiden)o(t,)g(101,)d(142)120 901 |
| y(Arra)o(yElemen)o(t,)h(19,)f(23,)g(24,)h(140)120 989 |
| y(Begin,)23 b(13,)e(15{20,)f(23,)i(24,)f(27,)g(52,)286 |
| 1045 y(60,)h(63,)g(66,)g(69,)g(132,)g(133,)286 1102 y(138)120 |
| 1158 y(BindT)l(exture,)17 b(99,)d(100)120 1215 y(Bitmap,)i(83,)e(84)120 |
| 1271 y(BlendF)l(unc,)j(113)120 1359 y(CallList,)g(19,)d(141)120 |
| 1416 y(CallLists,)j(19,)d(141)120 1472 y(Clear,)h(119,)f(120)120 |
| 1528 y(ClearAccum,)i(119)120 1585 y(ClearColor,)f(119)120 |
| 1641 y(ClearDepth,)g(119)120 1698 y(ClearIndex,)h(119)120 |
| 1754 y(ClearStencil,)h(119)120 1811 y(ClipPlane,)g(37)120 |
| 1867 y(Color,)e(19,)f(20,)g(40,)h(53)120 1924 y(Color3,)g(20)120 |
| 1980 y(Color4,)g(20)120 2037 y(ColorMask,)f(118)120 2093 |
| y(ColorMaterial,)32 b(47,)g(49,)g(50,)f(131,)286 2149 |
| y(176,)14 b(181)120 2206 y(ColorP)o(oin)o(ter,)h(19,)f(21,)g(22,)g(26,) |
| g(142)120 2262 y(Colorub,)h(53)120 2319 y(Colorui,)h(53)120 |
| 2375 y(Colorus,)f(53)120 2432 y(Cop)o(yPixels,)24 b(71{74,)e(91,)h |
| (121,)f(126,)286 2488 y(127,)14 b(137)940 732 y(Cop)o(yT)l(exImage1D,)g |
| (91,)g(92)940 789 y(Cop)o(yT)l(exImage2D,)g(91,)g(92)940 |
| 846 y(Cop)o(yT)l(exSubImage1D,)h(92,)f(93)940 903 y(Cop)o(yT)l |
| (exSubImage2D,)h(92)940 960 y(CullF)l(ace,)h(66,)f(67)940 |
| 1070 y(DeleteLists,)h(142)940 1127 y(DeleteT)l(extures,)g(100,)e(142) |
| 940 1184 y(DepthF)l(unc,)i(112)940 1241 y(DepthMask,)e(118)940 |
| 1298 y(DepthRange,)h(29,)g(144,)f(148,)g(177)940 1356 |
| y(Disable,)j(33,)d(36,)h(37,)g(42,)f(47,)h(57,)g(60,)1106 |
| 1412 y(63,)27 b(66,)f(67,)h(69,)f(71,)h(102,)1106 1468 |
| y(105,)k(110{113,)e(115,)h(130,)1106 1525 y(131)940 1582 |
| y(DisableClien)o(tState,)14 b(19,)d(23,)h(26,)g(142)940 |
| 1639 y(Dra)o(wArra)o(ys,)h(23,)h(24,)g(140)940 1696 y(Dra)o(wBu\013er,) |
| g(116,)g(117)940 1753 y(Dra)o(wElemen)o(ts,)g(24,)g(25,)h(140)940 |
| 1811 y(Dra)o(wPixels,)h(68,)e(71{79,)g(81,)h(84,)g(85,)1106 |
| 1867 y(121,)f(123,)g(125,)g(126,)g(137)940 1977 y(EdgeFlag,)h(18,)f(19) |
| 940 2034 y(EdgeFlagP)o(oin)o(ter,)h(19,)f(21,)g(22,)g(142)940 |
| 2091 y(EdgeFlagv,)h(18)940 2148 y(Enable,)j(33,)e(36,)g(37,)g(42,)g |
| (47,)g(57,)g(60,)1106 2205 y(63,)27 b(66,)f(67,)h(69,)f(71,)h(102,)1106 |
| 2261 y(105,)k(110{113,)e(115,)h(130,)1106 2317 y(131,)14 |
| b(144)940 2375 y(EnableClien)o(tState,)i(19,)e(23,)g(26,)g(142)940 |
| 2432 y(End,)h(13,)g(15{20,)e(23,)h(24,)g(27,)h(52,)f(60,)1106 |
| 2488 y(66,)h(69,)f(132,)g(133,)g(138)833 2613 y(183)p |
| eop |
| %%Page: 184 193 |
| 184 192 bop 332 137 a FC(184)1275 b Fx(INDEX)332 286 |
| y FC(EndList,)16 b(140)332 343 y(Ev)m(alCo)q(ord,)f(19,)f(130,)g(131) |
| 332 400 y(Ev)m(alCo)q(ord1,)h(131{133)332 457 y(Ev)m(alCo)q(ord1d,)g |
| (132)332 514 y(Ev)m(alCo)q(ord1f,)g(132)332 571 y(Ev)m(alCo)q(ord2,)g |
| (131,)f(133,)g(134)332 628 y(Ev)m(alMesh1,)h(132)332 |
| 685 y(Ev)m(alMesh2,)g(132,)f(133)332 741 y(Ev)m(alP)o(oin)o(t,)h(19)332 |
| 798 y(Ev)m(alP)o(oin)o(t1,)g(133)332 855 y(Ev)m(alP)o(oin)o(t2,)g(133) |
| 332 961 y(F)l(eedbac)o(kBu\013er,)g(137,)f(142)332 1018 |
| y(Finish,)i(142,)e(143,)g(175)332 1074 y(Flush,)i(142,)e(143,)g(175)332 |
| 1131 y(F)l(og,)g(105,)g(106)332 1188 y(F)l(ron)o(tF)l(ace,)g(46,)g(66) |
| 332 1245 y(F)l(rustum,)h(30,)f(31,)g(176)332 1351 y(GenLists,)i(142)332 |
| 1407 y(GenT)l(extures,)f(100,)f(142,)g(147)332 1464 y(Get,)g(29,)h |
| (142,)f(144)332 1521 y(GetBo)q(olean)o(v,)h(144,)f(148)332 |
| 1578 y(GetClipPlane,)i(145)332 1635 y(GetDoublev,)f(144,)f(145,)g(148) |
| 332 1692 y(GetError,)f(11)332 1749 y(GetFloatv,)h(144,)g(148)332 |
| 1806 y(GetIn)o(tegerv,)g(144,)g(148)332 1862 y(GetLigh)o(t,)h(145)332 |
| 1919 y(GetMap,)f(145,)g(146)332 1976 y(GetMaterial,)g(145)332 |
| 2033 y(GetPixelMap,)h(145,)f(146)332 2090 y(GetP)o(oin)o(terv,)g(147) |
| 332 2147 y(GetP)o(olygonStipple,)i(147)332 2204 y(GetString,)f(147,)f |
| (148)332 2261 y(GetT)l(exEn)o(v,)h(145)332 2318 y(GetT)l(exGen,)g(145) |
| 332 2374 y(GetT)l(exImage,)g(146)332 2431 y(GetT)l(exLev)o(elP)o |
| (arameter,)g(145,)e(146)332 2488 y(GetT)l(exP)o(arameter,)g(145)1152 |
| 286 y(GetT)l(exP)o(arameterfv,)g(101)1152 343 y(GetT)l(exP)o |
| (arameteriv,)h(101)1152 437 y(Hin)o(t,)h(143)1152 531 |
| y(Index,)h(19,)e(21)1152 588 y(IndexMask,)h(118)1152 |
| 644 y(IndexP)o(oin)o(ter,)h(19,)e(22,)g(142)1152 700 |
| y(InitNames,)i(134,)d(135)1152 757 y(In)o(terlea)o(v)o(edArra)o(ys,)h |
| (19,)h(25,)f(142)1152 813 y(IsEnabled,)i(142,)e(144,)g(148)1152 |
| 870 y(IsList,)i(142)1152 926 y(IsT)l(exture,)f(142,)f(146,)g(147)1152 |
| 1020 y(Ligh)o(t,)h(46{48)1152 1077 y(Ligh)o(tMo)q(del,)h(46,)e(48)1152 |
| 1133 y(LineStipple,)k(63)1152 1190 y(LineWidth,)f(60)1152 |
| 1246 y(ListBase,)e(141,)f(143)1152 1303 y(LoadIden)o(tit)o(y)l(,)i(30) |
| 1152 1359 y(LoadMatrix,)e(30)1152 1416 y(LoadName,)h(134,)f(135)1152 |
| 1472 y(LogicOp,)i(115,)e(116)1152 1566 y(Map1,)g(129,)g(130,)g(148)1152 |
| 1623 y(Map2,)g(129,)g(130,)g(148)1152 1679 y(MapGrid1,)g(132)1152 |
| 1735 y(MapGrid2,)g(132)1152 1792 y(Material,)h(19,)f(46,)g(48,)g(51,)h |
| (176)1152 1848 y(MatrixMo)q(de,)f(30)1152 1905 y(MultMatrix,)g(30)1152 |
| 1999 y(NewList,)h(140,)f(141)1152 2055 y(Normal,)h(19,)f(20)1152 |
| 2112 y(Normal3,)g(8,)h(20,)f(33)1152 2168 y(Normal3d,)h(8)1152 |
| 2225 y(Normal3dv,)g(9)1152 2281 y(Normal3f,)f(8)1152 |
| 2338 y(Normal3fv,)g(9)1152 2394 y(NormalP)o(oin)o(ter,)g(19,)g(22,)h |
| (26,)f(142)1152 2488 y(Ortho,)h(30,)f(32,)g(176)p eop |
| %%Page: 185 194 |
| 185 193 bop 120 137 a Fx(INDEX)1277 b FC(185)120 286 |
| y(P)o(assThrough,)14 b(138)120 343 y(PixelMap,)i(72,)e(74,)h(127)120 |
| 399 y(PixelStore,)25 b(19,)f(72,)f(73,)h(123,)f(127,)286 |
| 456 y(142)120 512 y(PixelT)l(ransfer,)16 b(72,)e(73,)h(127)120 |
| 569 y(PixelZo)q(om,)h(81)120 625 y(P)o(oin)o(tSize,)g(57)120 |
| 682 y(P)o(olygonMo)q(de,)e(66,)g(69{71,)f(135,)g(137)120 |
| 738 y(P)o(olygonO\013set,)i(70)120 795 y(P)o(olygonStipple,)i(68)120 |
| 851 y(P)o(opA)o(ttrib,)e(148,)f(149,)g(177)120 907 y(P)o(opClien)o(tA)o |
| (ttrib,)g(19,)e(142,)g(148,)g(149)120 964 y(P)o(opMatrix,)i(33)120 |
| 1020 y(P)o(opName,)h(134,)f(135)120 1077 y(PrioritizeT)l(extures,)i |
| (101)120 1133 y(PushA)o(ttrib,)f(148,)f(149)120 1190 |
| y(PushClien)o(tA)o(ttrib,)34 b(19,)e(142,)g(148,)286 |
| 1246 y(149)120 1303 y(PushMatrix,)15 b(33)120 1359 y(PushName,)g(134,)f |
| (135)120 1453 y(RasterP)o(os,)g(39,)h(135,)e(176)120 |
| 1510 y(RasterP)o(os2,)h(39)120 1566 y(RasterP)o(os3,)g(39)120 |
| 1623 y(RasterP)o(os4,)g(39)120 1679 y(ReadBu\013er,)i(123,)e(127)120 |
| 1735 y(ReadPixels,)29 b(71{74,)d(77,)g(79,)g(121{)286 |
| 1792 y(126,)14 b(142,)g(146,)g(147)120 1848 y(Rect,)i(27,)e(66)120 |
| 1905 y(RenderMo)q(de,)i(135{138,)d(142)120 1961 y(Rotate,)i(30,)f(31,)g |
| (176)120 2055 y(Scale,)i(30,)e(31,)h(176)120 2112 y(Scissor,)h(110)120 |
| 2168 y(SelectBu\013er,)g(135,)e(136,)g(142)120 2225 y(ShadeMo)q(del,)j |
| (52)120 2281 y(StencilF)l(unc,)h(111,)c(175)120 2338 |
| y(StencilMask,)i(118,)e(121,)g(176)120 2394 y(StencilOp,)k(111,)c(112) |
| 120 2488 y(T)l(exCo)q(ord,)h(19,)f(20)940 286 y(T)l(exCo)q(ord1,)h(20) |
| 940 343 y(T)l(exCo)q(ord2,)g(20)940 399 y(T)l(exCo)q(ord3,)g(20)940 |
| 456 y(T)l(exCo)q(ord4,)g(20)940 512 y(T)l(exCo)q(ordP)o(oin)o(ter,)22 |
| b(19,)f(21,)g(22,)h(26,)1106 569 y(142)940 625 y(T)l(exEn)o(v,)15 |
| b(102)940 682 y(T)l(exGen,)g(35,)g(36)940 738 y(T)l(exImage,)g(92)940 |
| 795 y(T)l(exImage1D,)22 b(86,)i(89,)f(91,)h(92,)g(97,)1106 |
| 851 y(99,)15 b(142)940 907 y(T)l(exImage2D,)25 b(85{87,)i(89,)g(91,)h |
| (92,)1106 964 y(97,)15 b(99,)f(142)940 1020 y(T)l(exP)o(arameter,)g |
| (93,)g(94)940 1077 y(T)l(exP)o(arameterf,)g(101)940 1133 |
| y(T)l(exP)o(arameterfv,)g(101)940 1190 y(T)l(exP)o(arameteri,)h(101)940 |
| 1246 y(T)l(exP)o(arameteriv,)g(101)940 1303 y(T)l(exSubImage,)h(92)940 |
| 1359 y(T)l(exSubImage1D,)f(92,)g(93)940 1416 y(T)l(exSubImage2D,)g(92) |
| 940 1472 y(T)l(ranslate,)g(30,)f(31,)g(176)940 1570 y(V)l(ertex,)h(7,)g |
| (19,)f(20,)g(39,)g(131)940 1626 y(V)l(ertex2,)h(19,)f(27)940 |
| 1683 y(V)l(ertex2sv,)h(7)940 1739 y(V)l(ertex3,)g(19)940 |
| 1796 y(V)l(ertex3f,)g(7)940 1852 y(V)l(ertex4,)g(20)940 |
| 1909 y(V)l(ertexP)o(oin)o(ter,)g(19,)f(22,)g(26,)h(142)940 |
| 1965 y(Viewp)q(ort,)g(29)p eop |
| %%Trailer |
| end |
| userdict /end-hook known{end-hook}if |
| %%EOF |
