[pixel shader] float4 main(uniform float4 u) : sv_target { return round(u); } [test] uniform 0 float4 -0.4 -6.6 7.6 3.4 draw quad probe all rgba (0.0, -7.0, 8.0, 3.0) 4 [pixel shader] float4 main(uniform float4 u) : sv_target { float a = round(u.r); int2 b = round(u.gb); float4 res = float4(b, a, u.a); return round(res); } [test] uniform 0 float4 -0.4 -6.6 7.6 3.4 draw quad probe all rgba (-7.0, 8.0, 0.0, 3.0) 4 [pixel shader] float4 main(uniform float4 u) : sv_target { int4 i = u; return round(i); } [test] uniform 0 float4 -1 0 2 10 draw quad probe all rgba (-1.0, 0.0, 2.0, 10.0) 4