Mist is a fog-like density field and hence completely different from splashes and foam. You will not find any particle-specific parameters. Since mist is a consequence of fragmented splash and/or wet particles, the presence of a splash or wet emitter is essential .
Quick Start
Starting point for mist is always an existing HyFLIP and splash/wet simulation. Here the simulations from → "HyFLIP - Quick Start" and → "HySPH - Splash" are used:
- Set the domain's and splash emitter's simulation state to → “Cache” (“yellow rocket”).
- Other, already simulated HySPH emitters have be set to “Cache” as well.
- Add a “Mist” node from the “Hybrido” shelf.
- Reset the scene.
What you can see now is a bounding box with a dimension of 10 m x 10 m x 10 m. The box can be positioned and scaled with the settings under Node Params > Node or the W and R keys. Mist is
- only created inside this box and it cannot leave its domain
- not affected by “k” daemons.
Open the → “Mist” parameter section for further adjustments:
- “Cell size” can be set independently from the domain's own → “Cell size” value.
- “Solver” should be “Fast” – the results will be good enough.
- “Radius threshold” is the most important parameter, because it controls the amount of foam (see below for more information).
The "Radius threshold" parameter depends on the splash particles' lifetime.
- When a splash particle is created its radius is 1. Depending on the lifetime settings, the particle's radius becomes smaller over time until it reaches 0.
- Lifetime is adjusted under → "Splash Dynamics" or → "Wet Dynamics".
- You have to decrease these parameters in most cases, e.g. to 1.5 s ("Splash | Wet min lifetime") and 2.0 s ("Splash | Wet max lifetime").
- Smaller thresholds will reduce the amount of mist.
Simulate.("Splash & Foam" and "Wet and Foam" emitters do not work!).
Quick Start
The image above is the result of quick start tutorial: