diff options
Diffstat (limited to 'src/gallium/docs/source/cso/rasterizer.rst')
| -rw-r--r-- | src/gallium/docs/source/cso/rasterizer.rst | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/gallium/docs/source/cso/rasterizer.rst b/src/gallium/docs/source/cso/rasterizer.rst index 721229d67d3..00d65fc598a 100644 --- a/src/gallium/docs/source/cso/rasterizer.rst +++ b/src/gallium/docs/source/cso/rasterizer.rst @@ -85,8 +85,10 @@ point_size 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. + point sprites are effectively disabled, though points may still be + rendered slightly different according to point_quad_rasterization. + If any coord is non-zero, point_smooth should be disabled, and + point_quad_rasterization enabled. If enabled, the four vertices of the resulting quad will be assigned texture coordinates, according to sprite_coord_mode. sprite_coord_mode @@ -103,6 +105,14 @@ sprite_coord_mode Note that when geometry shaders are available, this state could be removed. A special geometry shader defined by the state tracker could convert the incoming points into quads with the proper texture coords. +point_quad_rasterization + This determines if points should be rasterized as quads or points. + d3d always uses quad rasterization for points, regardless if point sprites + are enabled or not, but OGL has different rules. If point_quad_rasterization + is set, point_smooth should be disabled, and points will be rendered as + squares even if multisample is enabled. + sprite_coord_enable should be zero if point_quad_rasterization is not + enabled. scissor Whether the scissor test is enabled. |