[Bug 23865] pixel shaders are reporting inverted values

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23865


Maciej Cencora <m.cencora at gmail.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED




--- Comment #5 from Maciej Cencora <m.cencora at gmail.com>  2009-09-23 14:29:47 PST ---
(In reply to comment #4)
> (In reply to comment #3)
> > Is this a regression?  If so, can you bisect mesa to see when it broke?
> > 
> 
> Hi alex, its not a regression because WoW wasn't since the dri2/kms migration
> from the old code. only today i figured i could give another go, and behold it
> worked, but with this bug i reported. 
> 
> i believe that wine + wow exposes a pixel shader bug that didn' show up before
> because maybe no one was looking/using it?
> 
> is there any mesa test apps i could run to confirm the inverted shader problem?
> 

I can reproduce this problem on my RV535 card.

As a temporary solution disable "Full screen glow effect" in game options.
I believe the problems is with inverted coordinates when rendering to texture
with FBOs. I hope to get it fixed before mesa 7.6 release.


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