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I have these strange shadows emerging from a smoke simulation. I circled them with the red. They don't seem to be correlated with any actual density of smoke in the simulation. Placing a plane above the volume shows that there are no other objects accidentally casting them. They appear at random per frame and cause a messy vibrating shadow. I've been struggling with sourcing this issue and re-running the simulation did not solve the issue. They do decrease in size with higher resolution but there are more of them and they seem to disappear below a resolution of 200.rendered image of shadow issues Turning off Adaptive resolution did not solve the issue. All shaders have been disabled and I only have a principled volume plugged in currently.

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  • $\begingroup$ I also am having this issue $\endgroup$
    – Robbie
    Commented Nov 5, 2021 at 18:38

1 Answer 1

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I increased the samples for Render Properties > Light Paths > Transparency (using Cycles) and the weird shadow blocks disappeared.

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