diff options
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index eceaa6d64f7..7fb963fde5a 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -3298,8 +3298,9 @@ TGSI_SEMANTIC_SAMPLEMASK """""""""""""""""""""""" For fragment shaders, this semantic label indicates that an output contains -the sample mask used to disable further sample processing -(i.e. gl_SampleMask). Only the X value is used, up to 32x MS. +the sample mask used to disable further sample processing. The output's +type is uint[4] but only the X component is used (i.e. gl_SampleMask[0]). +Each bit corresponds to one sample position (up to 32x MSAA is supported). TGSI_SEMANTIC_INVOCATIONID """""""""""""""""""""""""" |