My aim was just animate flying insect with burning wing.
See “insect.png”
I found two problems with Mantaflow simulator in Blender
(tested in versions 3.3.1 and 3.4.1.).
- Adaptive Domain shrinks problem
- Adaptive Domain jumps problem
Adaptive Domain shrinks problem
Adaptive Domain ON & Noise ON & Dissolve Time (25) & Slow ON
Domain moves
Adaptive Domain is moving and due to Dissolve → ON the smoke is dissolving over time.
Adaptive Domain from time to time shrinks as intended,
but those shrinks are sometimes visible
which is noticeable for the viewer and not acceptable.
Lowering the Threshold → 0.001 → 0.0001 → 0.00001
does not solve the problem.
Increasing inflow Sampling Substeps → 3 → 10 → 50
does not solve the problem.
See “Adaptive Domain boundary shrinks.png”
See “Adaptive Domain problem.png” (in previous discussion)
Noise OFF
OK!
Adaptive Domain jumps problem
(even if Domain is static - must be much larger)
sometimes Adaptive Domain position
jumps between two consecutive frames
and smoke jumps too
which is noticeable for the viewer and not acceptable.
See “Adaptive Domain jump problem.png”
See “Adaptive Domain and Dissolve jump problem.png” or “Noise ON OFF.png”
… the camp fire simulation according to the book
“Learn Blender Simulations the Right Way”.
Noise OFF
OK!
Seems Noise OFF is solution to these problems
but then smoke does not look good.
Or Adaptive Domain OFF but then render time is soaring.
I am afraid that in my simulation parameters combination,
Mantaflow simulator is producing such erroneous results
and I can do nothing with this.