ATI R600g Gains Mip-Map, Face Culling Support

[netkas Senior Member Find all posts View Profile Close netkas]

Well, found a bug, hope Glisse reads this thread sometimes

[nanonyme Senior Member Find all posts View Profile Close nanonyme]

Well, found a bug, hope Glisse reads this thread sometimes

Seems to be broken in classic Mesa as well. *Eek*

[bridgman AMD Linux Find all posts View Profile Close bridgman]

Yeah, right now I think something like 96% of the 3D driver is common Mesa code and 4% is classic HW driver for whatever HW you are running.

After the move to Gallium3D I guess that will become more like 98% common and 2% hardware-specific

[nanonyme Senior Member Find all posts View Profile Close nanonyme]

Actually it looks a bit odd with Software Rasterizer as well. Could someone check whether or not geartrain polygons are valid? (edges not allowed to intersect, region must be convex) If some are invalid, it would explain strange rendering. I'm not experienced enough to just see validity by scanning through the code.

[marek X.Org Developer Find all posts View Profile Close marek]

Well, found a bug, hope Glisse reads this thread sometimes

This is most probably not a driver bug. swrast, llvmpipe, softpipe, r300c, and r300g render it the same as is on your screenshot.

[nanonyme Senior Member Find all posts View Profile Close nanonyme]

This is most probably not a driver bug. swrast, llvmpipe, softpipe, r300c, and r300g render it the same as is on your screenshot.

My eyes claimed swrast rendering differed a bit but was still incorrect. Hence why I started wondering about invalid polygons since rendering is undefined there and might even be unexpected in a different way in all drivers.

[marek X.Org Developer Find all posts View Profile Close marek]

Yeah, we are damned lucky that the hardware doesn't lock up (that's what usually "undefined" means).

[netkas Senior Member Find all posts View Profile Close netkas]

somebody need to check it on nvidia linux drivers.

[nanonyme Senior Member Find all posts View Profile Close nanonyme]

somebody need to check it on nvidia linux drivers.

This would prove nothing. Someone (more competent in OpenGL than I) needs to read geartrain.c and check the vertices.

[nanonyme Senior Member Find all posts View Profile Close nanonyme]

(and otherwise too, vertices were just my first guess)
ps. I hate the one-minute edit window.