[pixel shader] float4 main(uniform float4 u, uniform float4 v) : sv_target { float4 res = float4(0, 0, 0, 0); res.xyz = cross(u, v); return res; } [test] uniform 0 float4 1 -2 3 4 uniform 4 float4 10 100 1000 10000 draw quad probe all rgba (-2300, -970, 120, 0) [pixel shader] float4 main(uniform float4 u) : sv_target { float4 res = float4(0, 0, 0, 3.5); res.xyz = cross(u, 4); return res; } [test] uniform 0 float4 1 -2 3 4 draw quad probe all rgba (-20, 8, 12, 3.5)