| uniform half4 colorGreen, colorRed; | |
| half4 main(float2) { | |
| float4 color; | |
| color = float4(colorGreen) * 0.5; // 0, 0.5, 0, 0.5 | |
| color.a = 2.0; // 0, 0.5, 0, 2 | |
| color.g /= 0.25; // 0, 2, 0, 2 | |
| color.gba *= float3(0.5); // 0, 1, 0, 1 | |
| color.bgar += float4(0.25, 0.0, 0.0, 0.75); // 0.75, 1, 0.25, 1 | |
| color.r += color.a <= 1.0 ? color.b : 0.0; // 1, 1, 0.25, 1 | |
| return (color == float4(1, 1, 0.25, 1)) ? colorGreen : colorRed; | |
| } |