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ATI R600g Gains Mip-Map, Face Culling Support

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  • btw, latest mesa borked q3

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    • geartrain with nvidia (mobile, Quadro NVS 145M, basically a 8xxxM):


      I demand that this bug gets fixed in r300g!

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      • Originally posted by rohcQaH View Post
        I demand that this bug gets fixed in r300g!
        *cough* There's a bug in that screenshot too.

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        • fixed with some reversed commit

          btw, q3 timedemo results:

          llvmpipe - 16.2 fps
          r600c - 62.7 fps
          r600g - 25.9 fps - doesnt seem to change with lower res/settings
          catalyst 10,7 was about 129 fps

          rhd4850 + [email protected]

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          • oww.. now my head hurts.

            geartrain.c appears to be a mess of poorly indented code, ripe with buffer overflows and undefined behaviour. The code intended for the beveled gears is chaotic and does produce wrong geometry.

            I'd blame geartrain.c. Not to say there is no driver-bug, but geartrain is in no shape to indicate one.

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            • My recollection from r600c development was that geartrain was one of the most problematic demos, and continued to give us grief long after most of the other demos were working.

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              • this looks more like it:




                Both geometry and normal vectors were plain wrong on those BEVEL gears.

                I'm not sure I got it right now, but at least it looks better.

                Patch as soon as I'm sure it actually does what it's supposed to do and doesn't just look good by accident. Where would I submit any patches?

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                • The mesa-dev mailing list is probably best.

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                  • Originally posted by rohcQaH View Post
                    this looks more like it:

                    HAHAHA! I laughed my fscking ass off! (almost)

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                    • Originally posted by bridgman View Post
                      My recollection from r600c development was that geartrain was one of the most problematic demos, and continued to give us grief long after most of the other demos were working.
                      Lucky it got fixed now. It's kinda unnerving if a driver gets a workaround for a demo bug. God knows how many other things that could influence...

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