1uniform half4 I, N; 2uniform half4 colorGreen, colorRed; 3 4half4 main(float2 xy) { 5 const half4 constI = half4(1, -2, 3, -4); 6 const half4 constN = half4(-5, 6, -7, 8); 7 8 half expectedX = half (-49); 9 half2 expectedXY = half2(-169, 202); 10 half3 expectedXYZ = half3(-379, 454, -529); 11 half4 expectedXYZW = half4(-699, 838, -977, 1116); 12 13 return (reflect(I.x, N.x ) == expectedX && 14 reflect(I.xy, N.xy ) == expectedXY && 15 reflect(I.xyz, N.xyz ) == expectedXYZ && 16 reflect(I.xyzw, N.xyzw ) == expectedXYZW && 17 reflect(constI.x, constN.x ) == expectedX && 18 reflect(constI.xy, constN.xy ) == expectedXY && 19 reflect(constI.xyz, constN.xyz ) == expectedXYZ && 20 reflect(constI.xyzw, constN.xyzw) == expectedXYZW) ? colorGreen 21 : colorRed; 22} 23