graphics - What does uv.zw mean in HLSL? -


I am trying to use HLSL code as the basis for an experiment, but I do not know the UV . It shows:

  float4 uv0: TEXCOORD0 ... uv0.zw;   

UV is not just 2? I know UVAVE 3 supports, but what is the fourth component? Alpha?

In online examples, I used to only TEXCOORD0 float2 values, float4 was not found.



Comments

Popular posts from this blog

excel vba - How to delete Solver(SOLVER.XLAM) code -

github - Teamcity & Git - PR merge builds - anyway to get HEAD commit hash? -

ios - Replace text in UITextView run slowly -