1uniform half unknownInput; // 1 2 3half4 main(float2 coords) { 4 int i = int(unknownInput); 5 int4 i4 = i.xxxx; 6 i4 = i.xx01; 7 i4 = i.0x10; 8 i4 = i.0x0x; 9 10 return half4(i4); 11} 12