I’m looking for a way to improve quality of my smoke simulation done in Mantaflow. I’m novice at physics simulation so most of the progress is done by trial and error.
The scene I’m working on is done in real life scale - smoke domain, as the image captured in render is around 18 meters in width. I’ve experimented with Adaptive Domain, unfortunately the cache for it is not working very well. The baking times are long so I want to avoid unnecesarry work and ask here for some advice.
First issue - the smoke looks like its stretched in z-axis. I cannot figure why and all test bakes that I did before had the same problem. Could this be because of the collision object geometry? The smoke is colliding with the ground and trees. The trees are simple cylinders without any subdivision between top and bottom caps. All geometry has all transformation applied:
Second thing is related to smoke resolution. I struggle with the refinement of smoke detail without changing its general shape. I’m looking for an effect like this:
Or this, but without the fire:
Unfortunately after increasing resolution and adding some noise the smoke detail looks very uniform. Here is the render with increased density:
The rest of the parameters:
Smoke Emitter size: 16x2x2m (simple box, no subdivisions)
Smoke Domain size: x-19.5m y-18.9m z-5.8m
I’m using Blender 2.90
Thanks for any help.