SPIR-V Built-In
BaryCoordNoPerspSampleAMD
Barycentric coordinates of a sample center in screen-space
BaryCoordNoPerspSampleAMD
The BaryCoordNoPerspSampleAMD decoration can be used to decorate a
fragment shader input variable.
This variable will contain the (I,J) pair of the barycentric coordinates
corresponding to the fragment evaluated using linear interpolation at each
covered sample.
The K coordinate of the barycentric coordinates can be derived given the
identity I + J + K = 1.0.
Valid Usage
VUID-BaryCoordNoPerspSampleAMD-BaryCoordNoPerspSampleAMD-04166
The BaryCoordNoPerspSampleAMD decoration must be used only within
the Fragment Execution Model
VUID-BaryCoordNoPerspSampleAMD-BaryCoordNoPerspSampleAMD-04167
The variable decorated with BaryCoordNoPerspSampleAMD must be
declared using the Input Storage Class
VUID-BaryCoordNoPerspSampleAMD-BaryCoordNoPerspSampleAMD-04168
The variable decorated with BaryCoordNoPerspSampleAMD must be
declared as a two-component vector of 32-bit floating-point values