1uniform half4 colorGreen, colorRed;
2
3inline bool shouldLoop(half4 value) {
4 return value != colorGreen;
5}
6
7half4 main(float2 coords) {
8 half4 result = colorRed;
9 do {
10 result = colorGreen;
11 } while (shouldLoop(result));
12 return result;
13}
14