Cloud Using VRayEnvironmentFog

[vlado]

Hope in near future Vray Team will make something like pixar Denoiser.
https://renderman.pixar.com/view/renderman20

No, we will not spend any time on that ourselves - there's enough work writing the renderer itself. However we might partner up with someone else on a denoising solution; there are a few different ways to go, including simply using the Pixar denoiser as a standalone tool.

Best regards,
Vlado