diff options
| author | Ilia Mirkin <[email protected]> | 2014-07-01 20:54:01 -0400 |
|---|---|---|
| committer | Ilia Mirkin <[email protected]> | 2014-07-09 19:26:32 -0400 |
| commit | 4c97ed4411e3653a082875b79587fb308c284a99 (patch) | |
| tree | bc6f1666166da83a51525f6460d49c7d6d473166 /src/gallium/docs | |
| parent | e3b16294cb56bc0f3ee4a68a525884db0ce6806d (diff) | |
gallium: switch dedicated centroid field to interpolation location
The new location field can be either center, centroid, or sample, which
indicates the location that the shader should interpolate at.
Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
Diffstat (limited to 'src/gallium/docs')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 4213b4ac185..5571b758f4b 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -2735,6 +2735,11 @@ This token is only valid for fragment shader INPUT declarations. The Interpolate field specifes the way input is being interpolated by the rasteriser and is one of TGSI_INTERPOLATE_*. +The Location field specifies the location inside the pixel that the +interpolation should be done at, one of ``TGSI_INTERPOLATE_LOC_*``. Note that +when per-sample shading is enabled, the implementation may choose to +interpolate at the sample irrespective of the Location field. + The CylindricalWrap bitfield specifies which register components should be subject to cylindrical wrapping when interpolating by the rasteriser. If TGSI_CYLINDRICAL_WRAP_X is set to 1, the X component |