Hi there! Im quite new to Houdini, and encountered a little problem. Im trying to achieve a smoke sim inside of a “glass” sphere. Now, it took me around 2-3 Hours to Cache the sim, and i see lots of smoke coming out of the Sphere containing the Emitter.


https://imgur.com/a/8YdWnsA [imgur.com]

I have the Collison Volume Divisions at 230. They look quite dense. Not dense enough? Could it be that my Substeps are not high enough in the Pyro solver? I havent tried that yet, since it takes so much time to cache.
Any ideas? And any tips on how i could reduce the Cache time?

I have the hiplc file attached, and a Video showing the Sim:

https://youtu.be/6yDXXJxN3oY [youtu.be]


Thanks for your help! Its very much appreciated.

Don't merge the StaticObject with the SmokeObject. The SmokeObject connects to the pyrosolver and the StaticOBject is merged in after that.

Enivob
Don't merge the StaticObject with the SmokeObject. The SmokeObject connects to the pyrosolver and the StaticOBject is merged in after that.

This actually worked really well. Thanks so much for your help!