OpenCL support

Hello,

I think a lot of people would appreciate support for hardware other than nvidia cards through an open api, like opencl. I could use my intel integrated gpu, my AMD ether mining cards, and the RX Vega cards that we’re going to get at work. Vendor lock-in is always bad for competition and can massively increase prices.

Kristóf

i think it would be quite handy if you could run a draft alignment on laptop with just integrated intel gpu.

or running cuda on cpu would be just as useful.

its seems chaos group have gotten this working with vray RT now.