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Active Body Solver
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Fluid Density Multiplier | interaction_mult – Allows you to override the density of the simulated liquid. By default, 1.0 is considered 1000 kilograms per cubic meter (the density of water). Increasing this value will cause the Active Bodies to appear lighter and sink less inside the fluid simulation, and vice versa.
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On Earth, an object floats above water because of two forces: Gravity pulling it down, and the Buoyancy of the liquid pushing it up. Depending on the densities of the liquid and the floating object, those forces balance out and the object either sinks (if denser than the liquid its it is submerged in) or floats. |
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Sim. Air Drag | simulate_air_drag – Applies a simple Drag force to slow down the translation and rotation of the Active Body. This option helps stabilize the motion of objects in the simulation.
Scene Interaction
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Interaction Set | interactionSet – Determines which objects will be processed by the simulation. By default, all objects in the set will be treated as Active Bodies. Scene geometry not preset in the Interaction Set will be ignored by the Active Bodies Solver. Enable the Exclude List option to reverse this behavior.
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