[Bf-cycles] Proposal for Compute Device Selection from Blender

[Brecht Van Lommel]

On Sat, Nov 5, 2016 at 4:10 AM, Lukas Stockner
<lukas.stockner at freenet.de> wrote:
>> The CUDA / OpenCL choice seems like a per system choice rather than a
>> per scene choice. If you save a .blend file on a computer with an
>> NVidia GPU, I want to be able to open and render it on a computer with
>> an AMD GPU, without having to make any scene changes every time we
>> exchange .blends.
> Yes, that makes sense. In that case, though, I'd turn it into a pure GPU type selection and get rid of the CPU option.

The reason for the CPU option is to say: never use my GPU, even if
it's enabled in the scene (e.g. because it's too weak). If each GPU
gets a toggle to turn it on/off the CPU option indeed is not needed
anymore.

What we could have is an option to toggle usage of the CPU in addition
to the GPUs, but that will some deeper internal changes before it
works.