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  ATI 5.7 & 5.8 driver troubles  (Read 754 times)
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Offline Riven
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Hand over your head.


« Posted 2005-09-13 13:27:20 »

1. Reading back from any buffer (framebuffer / FBO) with RGBA will
   get you RGBA2 instead of RGBA8 by default. You have to
   explicitly pass RGBA8 as argument. Shocked



2. Compare these two:

1  
2  
3  
Geometry geom = ...;

geom.render(); // works fine!


1  
2  
3  
4  
Geometry geom = ...;

if(geom != null)
   geom.render(); // VM crashes in ATI library...


So checking for a null-reference causes EXCEPTION_ACCESS_VIOLATION in the next rendering-operation.
This happens only when render() does vertex-array rendering or VBO rendering. DisplayLists always work.
It almost seems like a timing-error, but I'm only using 1 thread. It just makes no sense.



I'm about to pull my hairs out! One by one!  Angry

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