Saw this and it’s relevant for those interested in the tech side of things:
https://labs.chaosgroup.com/index.php/rendering-rd/v-ray-gpu-improvements-in-v-ray-3-5-for-3ds-max/
You can see they’ve begun applying the same codebase for VRay that can run on both CPU’s and GPU’s. While it makes for dramatic increases (up to 400% in some cases) still far away from real time. Of course GPU’s scale much better than CPU’s so I’m sure 3 years from now we’ll revisit this thread when a 200 GPU cluster can do real time VR raytracing @ 90 fps.