SPIR-V Built-In
BaryCoordSmoothCentroidAMD
Barycentric coordinates of a fragment centroid
BaryCoordSmoothCentroidAMD
The BaryCoordSmoothCentroidAMD 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 perspective interpolation at
the centroid.
The K coordinate of the barycentric coordinates can be derived given the
identity I + J + K = 1.0.
Valid Usage
VUID-BaryCoordSmoothCentroidAMD-BaryCoordSmoothCentroidAMD-04175
The BaryCoordSmoothCentroidAMD decoration must be used only within
the Fragment Execution Model
VUID-BaryCoordSmoothCentroidAMD-BaryCoordSmoothCentroidAMD-04176
The variable decorated with BaryCoordSmoothCentroidAMD must be
declared using the Input Storage Class
VUID-BaryCoordSmoothCentroidAMD-BaryCoordSmoothCentroidAMD-04177
The variable decorated with BaryCoordSmoothCentroidAMD must be
declared as a two-component vector of 32-bit floating-point values