Fog Discrepency between ATI and Nvidia 3dmark05?

Excuse my ignorance... but in game test frame 1410?!

The test only go to frame ~1100.

where can we configure to go further?

 

GT3 Canyon flight consists 2280 frames. You can chose a frame in the Pro version under the "image quality" button.

 

Not in the free version that the majority of people will be using.

 

Here i provide the image taken with the CPU test, maybe this can help solving this issue? (or maybe we get a CPU war now? )

 

It's not a bug, it's just "different". I took a look at this issue with 3DMark05 and it is the same issue as was seen in Aquamark 3.

The R3xx/4xx chips do blending math slightly differently than refrast. The difference is at most 1 LSB which is not normally visible. However, when you combine many layers of blending, the errors can accumulate and then you can get a visible difference.

 

Thanks OpenGL Guy as that makes sense considering we saw the same type of effect back on Aquamark.

 

Since ATI's method can in fact cause visible differences when many layers are used, wouldn't it be worth fixing? Can it be fixed via drivers?

Mario64