Hello,
Does anyone know how to get rid of this grid artifact when using pyro and collision object?


I've tried using more substeps, changing the advection method, adding more resolucion to the collision vdb and nothing seems to help. I've tried using the shelf tool (to add collision object) and also creating the vdb myself but the problem is still there.
I've seen the same problem with flips in other threads but the solution doesn't apply with pyro effects.

And here's a test scene (the problem is more noticeable in rounded surfaces).

thanks!

I came across this thread a while ago about how to make a pyro sim less mushroom cloud like. Perhaps there is some information there that might help refine your sim?
http://forums.odforce.net/topic/18397-get-rid-of-mushroom-effect-in-explosion-and-add-details-in-the-opening/?page=1 [forums.odforce.net]

Hello! Just wondering if you ever managed to find a fix for this problem?

I am not sure, but try to use more substeps.
Hope it helps.