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Diffstat (limited to 'src/gallium/docs')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 01e18f3084e..e7b0c2f6377 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -2941,6 +2941,14 @@ TGSI_SEMANTIC_VERTICESIN For tessellation evaluation/control shaders, this semantic label indicates the number of vertices provided in the input patch. Only the X value is defined. +TGSI_SEMANTIC_HELPER_INVOCATION +""""""""""""""""""""""""""""""" + +For fragment shaders, this semantic indicates whether the current +invocation is covered or not. Helper invocations are created in order +to properly compute derivatives, however it may be desirable to skip +some of the logic in those cases. See ``gl_HelperInvocation`` documentation. + Declaration Interpolate ^^^^^^^^^^^^^^^^^^^^^^^ |