Waterline

Starting point for splashes is always an existing Hybrido core fluid simulation. Here it is a simple water basin with an animated object.

Scene Setup

• Set the domain's simulation state to → “Cache” (“yellow rocket”).
• Other, already simulated Hybrido secondary fluids emitters have be set to “Cache” as well.
• Add a “Waterline” emitter from the “Hybrido” shelf.
• Reset the scene.

What you see now is a cross in the viewport's centre, indicating that the emitter is not bounded. You can prevent the particles from leaving the domain:

• Add/reuse a → “k Volume” daemon and adjust it to the scene with the R key.
• Or make sure that the particles will be enclosed inside a container or a cube.

Open the emitter's → “Waterline Creation” panel:

• Choose the object(s) which should create the waterline particles.
• Adjust the waterline's “Width” and keep the value in mind, e.g. 0.2 m.
• Be careful with “Emission rate”, because the amount of particle can grow quickly.

If you want to dissolve the foam, for example to create a nice foam trail behind an object follow these steps:

• Open the → “Waterline Dynamics” panel.
• Set “Min lifetime” to a smaller value, e.g. 2.5 seconds.
• Set “Max lifetime” to 3.0 seconds.

Finally you have to adjust the waterline object:

• Object > Node Params > Volume

• Go to the → “Domain offset” parameter and enter the “Width” value from “Waterline Creation”.

• In this example it is 0.2.

Simulate.