I use ai Volume to render a smoke of Houdini with VDB, but it appears artefact
I change step size of AiVolume, and the artefact change, so I assume that's the problem, but even I use 0.001 step size, I can still see the artefact, how can I fix this?...
Thanks in advance
StepSize 0.1
StepSize 100
Update:
In the scene there are two AiVolume, but we can't see the other AiVolume through camera.
I really don't think the quality is the problem, it looks like this when I render without the other AiVolume, (the black part inside the smoke is the shadow of environment)
With Environment
Without Environment
So maybe there is some parameters I have to set to avoid the artefect influenced by the shadow of the other AiVolume?