1uniform float unknownInput; 2 3void main() { 4 half value = 0.0; 5 switch (0) { 6 case 0: 7 value = 0.0; 8 if (unknownInput == 2) break; 9 case 1: 10 value = 1.0; 11 } 12 sk_FragColor = value.xxxx; 13} 14