I just quote a screenshot from keyshot4 new features，you know，this function isn't unique to keyshot4.
It's a simple and useful function.
Would this be possible?

what a sharing!THX very much!

Am i dreaming?
you know ，some of the other GPU renders support both CUDA and OpenCL，but they are not powerful like octane。

I guess if opencl is supported，hd7970 probably could win gtx680 in rendering?