Am 14.12.2010 08:53, schrieb oleg:
> Hi,
> Iam a newbee. A colleague asked me to do some research in using pov-ray and GPU.
> After reading your comments it seems not a good idea to render pictures with GPU
> power because of single precision. But what about the Nvidia Tesla and its high
> DP processing power? Are there any project in progress or does it make sense to
> think about using the Nvidia Tesla GPUs for rendering?

Those comments are outdated, as double precision does not seem a problem 
anymore on modern GPUs (at least the high-end ones, and GP-GPUs such as 
Tesla).

Fusing POV-Ray with GPU would be a challenging task, as POV-Ray's 
internal architecture relies on recursive function calls, which are 
still a problem with GPUs; also, POV-Ray does not provide any 
sophisticated mechanisms to "bundle" rays into batches to undergo 
simultaneous processing (which would be necessary to exploit the full 
power of a GPU); you would need some mechanism to identify "similar" 
rays ("coherence" would be a buzzword here, though not in the laser sense).

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