% The ternary operator works differently in sm6. % It now shortcuts, and is no longer per-component. [require] shader model >= 6.0 [pixel shader] uniform float4 x; float4 main() : sv_target { return x.x ? x : x - 1; } [test] uniform 0 float4 2.0 3.0 4.0 5.0 todo draw quad probe all rgba (2.0, 3.0, 4.0, 5.0) uniform 0 float4 0.0 10.0 11.0 12.0 todo draw quad probe all rgba (-1.0, 9.0, 10.0, 11.0) [pixel shader] float4 f; float4 main() : sv_target { float f1 = 0.1, f2 = 0.2, f3; f3 = f.x ? (f1 = 0.5) + 0.2 : (f2 = 0.6); return float4(f1, f2, f3, 0.0); } [test] uniform 0 float4 1.0 0.0 0.0 0.0 draw quad probe all rgba (0.5, 0.2, 0.7, 0.0) [pixel shader fail] float4 x, y, z; float4 main() : sv_target { return x ? y : z; }