| XXX - Not complete yet!!! |
| |
| Name |
| |
| SGIX_line_quality_hint |
| |
| Name Strings |
| |
| GL_SGIX_line_quality_hint |
| |
| Contact |
| |
| Terrence Crane, SGI (tcrane 'at' sgi.com) |
| |
| Status |
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| XXX - Not complete yet!!! |
| |
| Version |
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| $Date$ |
| |
| Number |
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| XXX TBD |
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| Dependencies |
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| None |
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| Overview |
| |
| On VPro graphics systems, rendering very short lines sometimes |
| causes pixel dropouts. This hint works around the hardware issue by |
| dropping back to a software line rasterization path. |
| |
| New Procedures and Functions |
| |
| None |
| |
| New Tokens |
| |
| Accepted by the <target> parameter of glHint and by the <pname> |
| parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev: |
| |
| LINE_QUALITY_HINT_SGIX 0x835B |
| |
| Additions to Chapter 2 of the 1.1 Specification (OpenGL Operation) |
| |
| None |
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| Additions to Chapter 3 of the 1.1 Specification (Rasterization) |
| |
| None |
| |
| Additions to Chapter 4 of the 1.1 Specification (Fragments and the |
| Frame Buffer) |
| |
| None |
| |
| Additions to Chapter 5 of the 1.1 Specification (Special Functions) |
| |
| Add to section 5.6 ("Hints"): |
| |
| If the <target> argument of Hint is specified as |
| LINE_QUALITY_HINT_SGIX, then the <hint> argument indicates the |
| desired quality of line rasterization. The NICEST hint trades off |
| performance for increased pixel accuracy. |
| |
| Additions to Chapter 6 of the 1.1 Specification (State and State Requests) |
| |
| None |
| |
| Additions to the GLX Specification |
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| None |
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| GLX Protocol |
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| None |
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| Errors |
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| None |
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| New State |
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| Get Value Get Command Type Value Attrib |
| --------- ----------- ---- ------- ------ |
| LINE_QUALITY_HINT_SGIX GetIntegerv Z3 DONT_CARE hint |
| |
| New Implementation Dependent State |
| |
| None |
