| uniform half4 colorGreen, colorRed; |
| |
| half4 main(float2 coords) { |
| float4 value = float4(2.5, -2.5, 8, -0.125); |
| const float4 expectedWhole = float4(2, -2, 8, 0); |
| const float4 expectedFraction = float4(0.5, -0.5, 0, -0.125); |
| bool4 ok = bool4(false); |
| float4 whole, fraction; |
| |
| fraction.x = modf(value.x, whole.x); |
| ok.x = whole.x == expectedWhole.x && fraction.x == expectedFraction.x; |
| fraction.xy = modf(value.xy, whole.xy); |
| ok.y = whole.xy == expectedWhole.xy && fraction.xy == expectedFraction.xy; |
| fraction.xyz = modf(value.xyz, whole.xyz); |
| ok.z = whole.xyz == expectedWhole.xyz && fraction.xyz == expectedFraction.xyz; |
| fraction.xyzw = modf(value.xyzw, whole.xyzw); |
| ok.w = whole.xyzw == expectedWhole.xyzw && fraction.xyzw == expectedFraction.xyzw; |
| |
| return all(ok) ? colorGreen : colorRed; |
| } |