The “Sheeter” daemon's main purpose is to detect holes in particle fluids and fill them, but without increasing the emitter’s “Resolution” value. The result is a smooth stream of particles, perfectly suited for high-velocity and slow-motion simulations, or fluid-object collisions. For more information checkout → "Sheeter Daemon" in the "Important Workflows" section.
Linked Fluids
All fluid containers inside the drag-and-drop field will be affected by the daemon. The first fluid container in the scene is linked automatically, others have to be attached manually.
Min Cavity
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Size
Holes with a radius greater than the given value will not be filled. This parameter accepts positive values and is dimensionless. The daemon does have its limits, and there are situations where it is impossible to fill all holes. This, for example, can be the case when the fluid particles are very fast or when the holes are large. Good values range between 1.0 and 3.5, but this strongly depends on your simulation.
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Particle A is moving at a certain velocity which also determines its direction – this is the motion vector. Another vector points in the direction of particle B. The angle (α) between both vectors is compared against “Alignment Threshold”. If this angle is smaller than the given parameter value then a new particle will be created between A and B. The following illustration explains this concept:→ take image from http://support.nextlimit.com/display/rf2015docs/Daemons+-+Sheeter
Use Relative Speed
By taking the particles' speed into account you are able to do a lot of interesting things:
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Only particles with a velocity smaller than the given value will be taken into account for the hole-filling process. Please also read the descriptions under “Use Relative Speed”.
Use
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Age
This feature is used to break up the fluid at a certain point in time. Switch this option to “Yes” to make use of the associated “Max Age” value.
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