#Bubble3D specs.
Bubble3D can take its material from two sources:
1) from the bounding box hosting Bubble3D, so any material you can
design will show up.
2) from the source object to be used as the bubbles, so the
bubbles can have more than one material if you desire.
I guess either case would be user-definable. 🙂 I've never tried to
simulate a column of black smoke (been spoiled by the Yost group's
smoke) but I guess it could be done: a large number of bubbles, large
sized bubbles, fed in from bottom, w/ transparent material applied.