Hi!

There seem to be numerous issues regarding the latest ATI driver (8.1, 
tested on Windows XP):

The osgshadow sample complains about the vertex shader missing. If I 
recompile the sample with a dummy shader, the sample displays the 
geometry, but all in black. I didn't investigate further yet.


In my program, I use perspective shadow maps, rendering to a depth 
texture using setRenderTargetImplementation(FRAME_BUFFER_OBJECT). This 
works perfectly with driver version 7.9. In 8.1 however, it appears that 
the frame buffer image is flipped upside down for some reason. If I 
invert the y-coordinate for shadow texture lookup, everything works fine 
again for this driver version.

Can anybody confirm these issues? I'm afraid now I'll have to implement 
a test of whether the frame buffer is flipped to maintain compatibility 
with the screwed-up ATI driver... I hope this is not the case...

regards
cm

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