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Contains the coordinate of the vertex within the current patch.



Available only in the tessellation cevaluation language,gl_TessCoordspecifies 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[edit]

gl_TessCoord 4.0+

See Also[edit]

 gl_TessLevelOuter , gl_TessLevelInner , gl_PatchVerticesIn 


Copyright© 2011-2014 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.