gl_TessCoord - OpenGL ES 3.2 Reference Pages

## Name

gl_TessCoord — contains the coordinate of the vertex within the current patch

## Declaration

`in highp vec3 gl_TessCoord ;`

## Description

Available only in the tessellation evaluation language, `gl_TessCoord` specifies the three component (u, v, w) vector identifying the position of the vertex being processed by the shader relative to the primitive being tessellated.

## Version Support

| OpenGL ES Shading Language Version
--- | ---
Function Name | 1.00 | 3.00 | 3.10 | 3.20
gl_TessCoord | - | - | - | ✔

## See Also

gl_TessLevelOuter, gl_TessLevelInner, gl_PatchVerticesIn

## Copyright

Copyright © 2011-2015 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.