TessCoord(3)

Name

TessCoord - Barycentric coordinate of a tessellated vertex within a patch

Description

TessCoord

Decorating a variable with the TessCoord built-in decoration will make that variable contain the three-dimensional (u,v,w) barycentric coordinate of the tessellated vertex within the patch. u, v, and w are in the range [0,1] and vary linearly across the primitive being subdivided. For the tessellation modes of Quads or IsoLines, the third component is always zero.

Valid Usage

  • VUID-TessCoord-TessCoord-04387
    The TessCoord decoration must be used only within the TessellationEvaluation Execution Model

  • VUID-TessCoord-TessCoord-04388
    The variable decorated with TessCoord must be declared using the Input Storage Class

  • VUID-TessCoord-TessCoord-04389
    The variable decorated with TessCoord must be declared as a three-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.