void main() { float4 c0 = Sample(); float red = 0.0; float blue = 0.0; if (c0.r > 0.15 && c0.b > 0.15) { blue = 0.5; red = 0.5; } float green = max(c0.r + c0.b, c0.g); SetOutput(float4(red, green, blue, 1.0)); }