Michel Dänzer wrote: > On Tue, 2002-07-16 at 20:17, Leif Delgass wrote: > >>On Tue, 16 Jul 2002, Keith Whitwell wrote: >> >> >>>>Well, it's not high on my list. I don't think flat-shading is used that >>>>often, and the changes don't have any effect on smooth shading. Actually, >>>>it _eliminates_ some saves/restores necessary for unfilled polygons with >>>>hardware flat-shading. >>>> >>>>Actually, I think the problem is larger than mach64. Rage128 has the same >>>>problem and it appears to have GL compliant flat-shading based on the >>>>primitive. The problem is that for clipped polygons, the primitive type >>>>changes, so flat-shading breaks down in that case (like with unfilled >>>>polygons). I think the templates would have to be changed to copy the >>>>provoking-vertex color of the polygon being clipped into the vertices of >>>>the triangles generated by clipping, rather than interpolating the color. >>>> >>>I'm surprised that this isn't working. Can you verify? I tested on the i810 >>>at the time & definitely got clipping working there... >>> >>Here's a couple screenshots with the r128 driver (20020629 build): >> >>http://www.retinalburn.net/linux/r128-unclipped-flat.png >>http://www.retinalburn.net/linux/r128-clipped-flat.png >> >>Allen's test program is attached. Maybe someone could check this on >>Radeon with software tcl as well? >> > > Broken, as expected. As we've both been reporting for some time, > software clipping is broken in the r128 and radeon drivers. I used to > suspect a Mesa problem, but the mga driver works. I wish I knew what to > look for about this problem...
Sorry, I hadn't noticed the bug reports... I imagine the r200 is doing the same thing, so I can look into it today. Keith ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
