| |
| out vec4 sk_FragColor; |
| uniform vec4 colorGreen; |
| uniform vec4 colorRed; |
| vec4 main() { |
| vec4 value = colorGreen.yyyy * 2.5; |
| vec4 whole; |
| vec4 fraction; |
| bvec4 ok; |
| fraction.x = modf(value.x, whole.x); |
| ok.x = whole.x == 2.0 && fraction.x == 0.5; |
| fraction.xy = modf(value.xy, whole.xy); |
| ok.y = whole.y == 2.0 && fraction.y == 0.5; |
| fraction.xyz = modf(value.xyz, whole.xyz); |
| ok.z = whole.z == 2.0 && fraction.z == 0.5; |
| fraction = modf(value, whole); |
| ok.w = whole.w == 2.0 && fraction.w == 0.5; |
| return all(ok) ? colorGreen : colorRed; |
| } |