1uniform half4 colorGreen, colorRed; 2 3bool switch_fallthrough(int value) { 4 bool ok = false; 5 switch (value) { 6 case 2: break; 7 case 1: 8 case 0: ok = true; break; 9 default: break; 10 } 11 return ok; 12} 13 14bool switch_fallthrough_twice(int value) { 15 bool ok = false; 16 switch (value) { 17 case 0: break; 18 case 1: 19 case 2: 20 case 3: ok = true; break; 21 default: break; 22 } 23 return ok; 24} 25 26half4 main(float2 coords) { 27 int x = int(colorGreen.g); 28 return (switch_fallthrough(x) && switch_fallthrough_twice(x)) ? colorGreen : colorRed; 29} 30