| uniform half4 N, I, NRef; |
| uniform half4 colorGreen, colorRed; |
| |
| half4 main(float2 xy) { |
| |
| const half4 constN = half4(1, 2, 3, 4); |
| const half4 constI = half4(1, 1, -100, 1); |
| const half4 constNRef = half4(1); |
| |
| half4 expectedPos = half4(1, 2, 3, 4); |
| half4 expectedNeg = -half4(1, 2, 3, 4); |
| |
| return (faceforward(N.x, I.x, NRef.x ) == expectedNeg.x && |
| faceforward(N.xy, I.xy, NRef.xy ) == expectedNeg.xy && |
| faceforward(N.xyz, I.xyz, NRef.xyz ) == expectedPos.xyz && |
| faceforward(N.xyzw, I.xyzw, NRef.xyzw ) == expectedPos.xyzw && |
| faceforward(constN.x, constI.x, constNRef.x ) == expectedNeg.x && |
| faceforward(constN.xy, constI.xy, constNRef.xy ) == expectedNeg.xy && |
| faceforward(constN.xyz, constI.xyz, constNRef.xyz ) == expectedPos.xyz && |
| faceforward(constN.xyzw, constI.xyzw, constNRef.xyzw) == expectedPos.xyzw) ? colorGreen |
| : colorRed; |
| } |