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Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 926527151c4..f3aebb3b317 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -2425,6 +2425,17 @@ contains the layer value to use for the color and depth/stencil surfaces. Only the X value is used. (Also known as rendertarget array index.) +TGSI_SEMANTIC_CULLDIST +"""""""""""""""""""""" + +Used as distance to plane for performing application-defined culling +of individual primitives against a plane. When components of vertex +elements are given this label, these values are assumed to be a +float32 signed distance to a plane. Primitives will be completely +discarded if the plane distance for all of the vertices in the +primitive are < 0. If a vertex has a cull distance of NaN, that +vertex counts as "out" (as if its < 0); + Declaration Interpolate ^^^^^^^^^^^^^^^^^^^^^^^ |