HySF - Bubbles and Foam
"Bubbles & Foam" always requires an existing core fluid simulation.
When air mixes with water bubbles occur. These bubbles rise due to buoyancy force and burst when they reach the surface. In many cases the leave a foam trail. This emitter is capable of simulating these two phenomena in a single pass.
Although, there is only one common export resource for the “Bubbles & Foam” emitter, RealFlow writes individual cache files: the bubbles files carry a “_bubbles” suffix, the foam files the “_foam” extension.
For a workflow description visit the → "Bubbles and Foam" tutorial.