table of contents
| 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
| 05/21/2015 | [FIXME: source] |