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GL_PATCHVERTICESIN(3G) [FIXME: manual] GL_PATCHVERTICESIN(3G)

NAME

gl_PatchVerticesIn - contains the number of vertices in the current patch

DECLARATION

in int gl_PatchVerticesIn ;.SH "DESCRIPTION"

Available only in the tessellation control and evaluation languages, gl_PatchVerticesIn contains the number of vertices in the input being processed by the shader. A single tessellation control or evaluation shader can read patches of differing sizes, and so th value of gl_PatchVertexIn may differ between patches.

VERSION SUPPORT

OpenGL Shading Language Version
Variable Name 1.10 1.20 1.30 1.40 1.50 3.30 4.00 4.10 4.20 4.30 4.40 4.50
gl_PatchVerticesIn - - - - - -

SEE ALSO

gl_TessLevelOuter(), gl_TessLevelInner(), gl_TessCoord()

COPYRIGHT

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. http://opencontent.org/openpub/.

COPYRIGHT

Copyright © 2011-2014 Khronos Group

08/09/2021 [FIXME: source]