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Diffstat (limited to 'src/gallium/docs/source/cso')
| -rw-r--r-- | src/gallium/docs/source/cso/rasterizer.rst | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/src/gallium/docs/source/cso/rasterizer.rst b/src/gallium/docs/source/cso/rasterizer.rst index 89c3c061f0d..721229d67d3 100644 --- a/src/gallium/docs/source/cso/rasterizer.rst +++ b/src/gallium/docs/source/cso/rasterizer.rst @@ -82,17 +82,18 @@ point_size_per_vertex Whether vertices have a point size element. point_size The size of points, if not specified per-vertex. -point_sprite - Whether points are drawn as sprites (textured quads). This is mutually - exclusive with point_smooth. Note that sprite_coord_mode set to - PIPE_SPRITE_COORD_NONE for all coords and point_sprite enabled is basically - equivalent to point_sprite disabled. +sprite_coord_enable + Specifies if a coord has its texture coordinates replaced or not. This + is a packed bitfield containing the enable for all coords - if all are 0 + point sprites are effectively disabled. If any coord is non-zero, + point_smooth should be disabled. + If enabled, the four vertices of the resulting quad will be assigned + texture coordinates, according to sprite_coord_mode. sprite_coord_mode Specifies how the value for each shader output should be computed when - drawing sprites. If PIPE_SPRITE_COORD_NONE, don't change the vertex - shader output. Otherwise, the four vertices of the resulting quad will - be assigned texture coordinates. For PIPE_SPRITE_COORD_LOWER_LEFT, the - lower left vertex will have coordinate (0,0,0,1). + drawing sprites, for each coord which has sprite_coord_enable set. + For PIPE_SPRITE_COORD_LOWER_LEFT, the lower left vertex will have + coordinate (0,0,0,1). For PIPE_SPRITE_COORD_UPPER_LEFT, the upper-left vertex will have coordinate (0,0,0,1). This state is needed by the 'draw' module because that's where each |