[Bf-committers] GPU computing

[Shaul Kedem]

also, here is a set of great podcasts : http://www.macresearch.org/opencl


On Wed, Nov 25, 2009 at 4:07 AM, Damien Plisson <damien.plisson at yahoo.fr> wrote:
> Hi Ishan,
>
> That's a great project to look how to leverage the GPU for blender!
>
> Concerning the mac, only Snow Leopard provides openCL (with other parallel computing frameworks like grand central).
> What's funny is that Apple strongly promotes openCL, but has not yet released any SW that uses it (Aperture/Final Cut would be good candidates ...)
>
> I looked at this topic some time ago, and here are the info I gathered (you may have already got some):
>
> Apple openCL doc & examples :
> http://developer.apple.com/mac/library/documentation/Performance/Conceptual/OpenCL_MacProgGuide/Introduction/Introduction.html
> examples:
> Julia quaternion raytraced : http://developer.apple.com/mac/library/samplecode/OpenCL_RayTraced_Quaternion_Julia-Set_Example/
> Procedural grass & terrain: http://developer.apple.com/mac/library/samplecode/OpenCL_Procedural_Grass_and_Terrain_Example/
> ...
>
> There is also a paper from a nvidia guy on raytracing optimization through openCL. It presents well what impacts performance: data transfer bottleneck, and load balancing among the gpu cores:
> http://www.nvidia.com/object/nvidia_research_pub_011.html
>
> I don't know the internals of blender renderer, but if you need help on the Mac (and/or ghost topics) parts, feel free to ask ;)
>
> Good luck with openCL!
> Damien
>
> Le 25 nov. 2009 à 04:28, Ishan Arora a écrit :
>
>>> That is, unless you're feeling ambitious. ^_^;
>> Not very ambitious right now :)
>>
>>> Btw, let me know if you create a proper SVN fork and I can try to help with Mac compiling, Snow Leopard only.
>> Thanks for the offer. Mac would benefit the most from OpenCL.
>> I am new here. One the first thing that confused me was the number of
>> forks around. I was hoping to be able to submitting patches to the
>> trunk. I am not really sure how things move around here.
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