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¶
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OpenGL Shading Language Version |
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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