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It is also possible to use the underlying grid fluid speed for the splash creation process. If the fluid's velocity is below the adjusted threshold, no new splashes will be generated. “Speed threshold” is very easy and effective way to reduce the amount of splash particles. In RealFlow, velocities are measured in metres per second [m/s].
Vorticity threshold
"Vorticity" is a very interesting and important value that represents the strength of vortices that will arise in turbulent mediums like fluids or smoke. Using vorticity as a trigger can create very nice, natural results. This property can even be used when the Hybrido domain's “Vorticity” channel has not been activated.
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This parameter can also be used to effectively increase/decrease the number of splash particles, because Hybrido creates splashes within a certain radius (= the parameter's value) around the current grid fluid particle. If the value is high, you will see clouds around the particles. In this case you should choose a smaller value. The parameter uses RealFlow units (one RealFow unit equals one metre)metres [m].
Angle variation
Hybrido adds splashes within the given angle. Large values can create a torn and randomized look that is not always desired. With smaller settings it is possible to keep the splashes closer together. The parameter is related to “Angle threshold” and uses degrees, toouses degrees [deg].
Velocity variation
The last setting for avoiding regular patterns randomly modifies the original particle velocity, and uses the entered value as the maximum variation. The unit of this parameter is given in metres per second [m/s]. “Velocity variation” works well for core fluids with a rather uniform distribution of velocities and makes the splashes more vivid.
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