> r300g: hack around issue with doom3 and 0 stride > This is most likely a bug in the mesa state tracker, but do the quick hack > for now to avoid the divide by 0.
This is not a bug: stride 0 means that the vertex attribute is constant for all vertices. It is not a special value either: advancing the vertex attribute pointer by 0 will naturally result in always fetching the same value. Thus, the patch is not likely to be correct: you should instead either program stride 0 to the hardware if supported, or fetch the vertex attribute with the CPU (I think it is always in a user buffer, but not sure, maybe OpenGL allows explicitly specifying a VBO with stride 0) and use whatever means Radeon provides to set a constant vertex attribute (e.g. nVidia GPUs have a FIFO method exactly for that). ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
