Re: [Dri-devel] R200 - what can I do to help?

[magenta <ma...@tr...>]

On Sun, Dec 29, 2002 at 12:07:40PM +0000, Keith Whitwell wrote:
> Mark wrote:
> > So i've been sitting on the sidelines waiting for a fix for the rendering bugs 
> > in the R200 driver, but it doesn't seem like anyone is tackling it. I'm 
> > running a Radeon Mobility 9000. RTCW is playable but with significant 
> > artifacts, half life has same. UT2003 looks totally insane, crazy polygons 
> > everywhere.
> > 
> > Has anyone looked at this? If someone could maybe point me at a troubled 
> > section of code, I could work on it. I would like to get the RTCW and 
> > Half-Life/Wine artifacts fixed at least.
> > 
> > If someone knows of a very simple program which generates these same errors 
> > please let me know, it will make it much easier to track down.
> 
> That might be a good place to start -- try and find or write (perhaps by 
> modifying the mesa demos) a piece of code that breaks the r200 driver.

I know that my engine Solace (http://www.cs.nmsu.edu/~joshagam/Solace/)
causes such artifacts... my guess is that it happens when playing back a
displaylist which was created using glArrayElement().  (I'm guessing that
the screenshot someone posted was using the default configurations, which
does that by default.)

Also, if whoever it was who posted that screenshot could change the Solace
setting of GL_draw_method to 0 (which switches to immediate mode rendering
rather than using vertex arrays) and see if that continues with the
funkiness, that would be another useful data point. :)

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