I have found a possable bug in the dri implementation of glPointSize() ... it doesn't seem to work at all. I'm using the radeon.o drm and the r200 mesa drivers.
https://sourceforge.net/tracker/?func=detail&atid=100387&aid=735997&group_id=387
There was a patch floating around somewhere, but it never got commited. Here's the thread:
http://marc.theaimsgroup.com/?l=dri-devel&m=105802966226221&w=2
The latest version of the patch that I can find (I don't know if this will still apply cleanly):
http://marc.theaimsgroup.com/?l=dri-devel&m=105862837814769&w=2
IIRC, there were still some open issues with the patch, and Dylan was working to resolve them. I haven't heard anything from him since early August. It sure would be nice to have this fixed for XFree86 4.4.0. I'm pretty sure it would count as a bug-fix.
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