gl_PatchVerticesIn — contains the number of vertices in the current patch
in int gl_PatchVerticesIn;
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.
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 | Version 4.20 | Version 4.30 |
---|---|---|---|---|---|---|---|---|---|---|
gl_PatchVerticesIn | - | - | - | - | - | - | Y | Y | Y | Y |
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