[Bf-cycles] GPU future

[Brecht Van Lommel]

Hi,

On Sun, Dec 9, 2012 at 3:10 PM, Juan Pablo Scotto
<juanpscotto at hotmail.com> wrote:
> But is it posible to implement, one feature that gives you the posibility to
> choose what objects in a scene can be rendered in CPU or GPU?.
> For example if you are making a scene with grass with hair and other
> objects. You can render the grass with cpu and the other objects in GPU.
> That will be very usefull for the people that has a GPU with less Vram than
> RAM.
>
> I'ts just and opinion. What do you think about? Is it totally crazy the
> idea?

Hybrid rendering where you split shading and ray intersection can be
done as shown by Luxrender. Intersecting some objects and the GPU and
some on the CPU is possible in principle, but it gets tricky and I'm
not so sure about the advantages over just doing all intersections on
the CPU then, speed gains might be minimal.

For Cycles I don't see hybrid rendering as a priority, I think there's
many other optimizations that should be tackled first.

Brecht.