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 (C) 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 (C) 2011-2014 Khronos Group

[FIXME: source]                   05/21/2022            GL_PATCHVERTICESIN(3G)