Re: [Mesa3d-dev] problem in Mesa-CVS version

[Brian P. <br...@va...>]

"Jacob (=Jouk) Jansen" wrote:
> 
> Hi all,
> 
> For some time I'm now struggleling with the stairs demo of xlockmore
> (see ftp://ftp.tux.org./pub/tux/bagleyd/xlockmore/). It occasionally crashes
> with the distribution of Mesa in CVS (main branche) and the bouncing balls
> shows a light band.
> 
> I just checked with Mesa3.4 and could not reproduce these problems. So the
> MesaCVS seems to be suspect for this program.
> 
> Note that all the other OpenGL demo's of xlockmore seem to work fine.
> 
> I'm running this on my OpenVMS 7.2-1 Box.

I can't reproduce the crash on my system.

I think there's a bug in the stairs code.  Texturing is always enabled
but the ball is drawn without specifying any texture coordinates.

Technically, the ball should be drawn using whatever texture coordinate
was last specified.  This would result in the same texel being used
over the whole object.  It appears this his happening with Mesa 3.4
but not with Mesa 3.5.  So, there's probably a bug in Mesa 3.5 too.

Keith, any ideas?

-Brian