InvocationsPerPixelNV

InvocationsPerPixelNV

Decorating a variable with the InvocationsPerPixelNV built-in decoration will make that variable contain the maximum number of fragment shader invocations per pixel, as derived from the effective shading rate for the fragment. If a primitive does not fully cover a pixel, the number of fragment shader invocations for that pixel may be less than the value of InvocationsPerPixelNV. If the shading rate indicates a fragment covering multiple pixels, then InvocationsPerPixelNV will be one.