Name

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

Declaration

in vec3 gl_TessCoord;

Description

Available only in the tessellation cevaluation 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

Variable Version 1.10 Version 1.20 Version 1.30 Version 1.40 Version 1.50 Version 3.30 Version 4.00 Version 4.10
gl_TessCoord - - - - - - Y Y

See Also

gl_TessLevelOuter, gl_TessLevelInner, gl_PatchVerticesIn

Copyright

Copyright © 2011 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/.