On Mon, Feb 8, 2010 at 10:21 AM, Roland Scheidegger <srol...@vmware.com> wrote: > This branch removes point_size_min and point_size_max because most > hardware doesn't have any register to clamp this at rasterization time > (from all gallium drivers, only r300 had this), and the mesa state > tracker actually never used these field properly. The clamp to > implementation limits will now be done in the vertex shader instead. > Also, point_sprite enable is removed and replaced with a > point_quad_rasterization field. The reason for this is that OGL actually > has quite different rasterization rules for points and point sprites - > hence this indicates if points should be rasterized as points or > according to point sprite (which decomposes them into quads, basically) > rules. It is unclear to me if we'd actually really need to do something > different for these rules in the draw module or if hardware can do much > with this information, but if there's hardware which can well you can > use it. > The point sprite coord enable is no longer also indicating the sprite > coord origin, since there's no api interested in this per coord. > > Testing was done with softpipe, and actually pointblast doesn't work > (does not draw any points at all), neither does spriteblast (some points > have their size cut somewhere vertically so they are rectangles) > correctly. However, these bugs are not introduced by this branch, those > must be bugs in the draw module present before - I'm still trying to > figure out what goes wrong.
They're OK on master. I fixed some breakage in this area last week. See 54d7ec8e769b588ec93dea5bc04399e91737557e for example. -Brian ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
