GPU Shade Preview vs. Render

[alessandromastronardi]

Hello, I'm getting a different render of what I expect by the GPU preview. I think it's a setting I am missing somewhere more than a bug? I'm using Vray Next beta and latest Phoenix FD night build. Thanks

[Svetlin.Nikolov]

Yes, one of the most important reasons the gpu preview can work at real time is that it treats each light as a directional light, so domes, area lights or gi are gonna add up to a different render. In case you need to iterate not on the simulation shape a but the shading, please swith to vray ipr gpu.

Cheers!

[alessandromastronardi]

Hi Svetlin, thanks but actually I was referring to the smoke volume, see how it's reduced in the final render, while in the preview is much denser.

[Svetlin.Nikolov]

Ah, sorry - then it's the Minimum Visible Opacity option - for the GPU preview it's always at 0. Try reducing it further (don't set it to 0 or you will get a much much slower render). Sometimes it has to be as low as one ten-thousandth...

[alessandromastronardi]

Many thanks, found it and fixed!

[Svetlin.Nikolov]

Yay! Glad it's okay now