Next GPU and Volume Grid VDB Artifacts?

V-Ray V-Ray for 3ds Max Issues
1

I’m doing some tests using the Disney cloud vdb sample and finding that when I create several copies of the same vray volume grid and rendering using Next GPU there are some strange artifacts. If I render via Next CPU it looks fine, but takes forever :slight_smile:

The error looks like squares patches where the illumination or showing isn’t correct. Any ideas?

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2

The artifact doesn’t show up during the lightcache phase, only during final render. The dark squares are also in the alpha.

3

In case you copied/offset them only XY axis, try to offset a bit in Z too, there was similar issue reported recently..

4

Boom! That was it. Thanks for the tip.