Here you can define the conditions for the creation of foam particles based on various threshold parameters.
Bounded
By default, foam is created over the entire core fluid surface, but it is also possible to restrict this process to a given volume – a domain. When “Bounded” is set to “Yes”, a cube appears showing the domain's dimensions. This box can be scaled with the RealFlow's “Scale” tool (R key) or numerically with the “Scale” parameters under “Node”. A bounded foam domain is also needed when you want to simulate a scene via network with the help of IDOCs.
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With this parameter you can directly define the number of emitted particles per second per cubic metre. It replaces the emitter's “Resolution” parameter.
@ angle threshold
This parameter takes the fluid surface's main direction of motion into account. The particles themselves also have an individual direction of motion caused by their velocity. RealFlow measures the angle between these two directions, and when the angle is between 0° and the given threshold splash particles will be added. The value is measured in degrees [deg].
@ curvature threshold
The core fluid's surface has a certain amount of “roundness”, also called curvature. Particle emission can also be controlled with this value. It ranges from 0.0 to 1.0 and higher This parameter is dimensionless and any value greater than or equal to 0 can be used. Higher settings decrease the number of particles, because a stronger curvature is needed for areas where foam is generated.
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This value takes the grid fluid particles' speed into account. Particles with a speed smaller than the given value will be not be able to create foam. With 0.0, all particles can contribute to this process. Velocities are measured in metres per second [m/s].
@ vorticity threshold
Here, the grid fluid particles' vorticity is analysed. When the current vorticity is greater than the given value, the particle produces foam.
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Foam particles are always created within a certain distance around a source particle. With this parameter you can adjust this distance to avoid unwanted patterns. Higher values also increase the number of particles. This value uses metres [m].
Create particles from image...
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