[Bf-committers] Blender and OpenCL

[Ralph Giles]

2010/8/25 Arturo José Pérez Verdú <arturjosep at gmail.com>:

> When you are talking about the fallback to normal CPU execution you are talking about an optimized CPU execution? I mean, as I understand OpenCL, there's always at least one OpenCL capable device, the CPU.

This depends on the implementation. OpenCL code *can* be compiled to
run on the CPU, and for example Apple's implementation supports this,
but I believe some of the GPU vendor's implementations do not; that
is, they can only compile targetting the GPU, not the CPU.

But as Jeroen points out, OpenCL itself may not be available, so
separate fallback code is necessary regardless.

 -r