Hi, Leigh Wanstead wrote:
I don't understand what you said. I thought that nvidia cg offers frame buffer object to read data back from graphics card.
You are correct Cg and BrookGPU both use the GPU as extra processing unit. But you should wonder a few things: is floating point what you want for calculations, if so what would be faster GPU/CPU and what would be more compatible.
It is nice to code for an Ati or nVidia chipset. But you tighten yourself to those implementations. It isn't strange if it only works with close source drivers. Other users can benefit more from MMX/SSE/etc.
I think if someone created proof-of-concept plugins using the GPU it would be good to compare. When I was working on BrookGPU for benchmarking a libm on GPU we found out that a lot of time was spend in actually transferring the data from and to the graphics card. The GPU is a great 'reduction' machine. Maybe stuff changed :)
Stefan _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
