In the “Liquid – Hybrido” shelf you can find two tools for synchronizing your foam simulations with the core fluid's displacement (“Ocean Statistical Spectrum”), and the Hybrido mesh. When we talk about “foam” here, the following HySPH emitters are concerned: “Foam”, “Splash & Foam”, “Bubbles”, “Wet & Foam”, “Waterline”. In the combined emitters, only the foam particles are affected by these tools. They replace the graphs which have been used in previous version, although these graphs are still available under RealFlow's “Demo scenes”.
The idea behind these tools is that the basic secondary simulations do not take the core fluid's displacement into account and you will see an offset between the HySPH particles and the fluid's surface respectively the Hybrid mesh. To close this gap, the tools evaluate the displacement structure and reposition the particles to match the surface waves. This is a non-destructive process where the original files will be kept and not overwritten.
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