SPIR-V Built-In
BaryCoordSmoothAMD
Barycentric coordinates of a fragment center
BaryCoordSmoothAMD
The BaryCoordSmoothAMD 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 fragment’s center.
The K coordinate of the barycentric coordinates can be derived given the
identity I + J + K = 1.0.
Valid Usage
VUID-BaryCoordSmoothAMD-BaryCoordSmoothAMD-04172
The BaryCoordSmoothAMD decoration must be used only within the
Fragment Execution Model
VUID-BaryCoordSmoothAMD-BaryCoordSmoothAMD-04173
The variable decorated with BaryCoordSmoothAMD must be declared
using the Input Storage Class
VUID-BaryCoordSmoothAMD-BaryCoordSmoothAMD-04174
The variable decorated with BaryCoordSmoothAMD must be declared as
a two-component vector of 32-bit floating-point values