BaryCoordNoPerspAMD(3)

Name

BaryCoordNoPerspAMD - Barycentric coordinates of a fragment center in screen-space

Description

BaryCoordNoPerspAMD

The BaryCoordNoPerspAMD 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 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-BaryCoordNoPerspAMD-BaryCoordNoPerspAMD-04157
    The BaryCoordNoPerspAMD decoration must be used only within the Fragment Execution Model

  • VUID-BaryCoordNoPerspAMD-BaryCoordNoPerspAMD-04158
    The variable decorated with BaryCoordNoPerspAMD must be declared using the Input Storage Class

  • VUID-BaryCoordNoPerspAMD-BaryCoordNoPerspAMD-04159
    The variable decorated with BaryCoordNoPerspAMD must be declared as a two-component vector of 32-bit floating-point values

See Also

No cross-references are available

Document Notes

For more information, see the Vulkan Specification (NOTE: cannot determine Specification page containing this refpage).

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.