![]() See About nParticle internal ramps and per-particle attributes. If you want to use an expression with the per-particle attribute, you need to manually add them again. When off, the per-particle attributes are deleted. ![]() Increasing Substeps on the nucleus node magnifies the affect of Viscosity. You can use the Viscosity Scale ramp to set per-particle viscosity to nParticle properties such as Age to create the effects of liquid becoming more viscous as it ages. For more viscous liquids, use a value of 0.1.Īdds viscosity to the liquid making it appear thicker and more resistant to flow. For example, a value of 0.01 produces water-like liquids. When this value is small, the liquid flows more like water. When this value is high, the liquid flows like tar. Viscosity represents the resistance of the liquid to flow, or how thick, and non-liquid the material is. At values less than 0.1, nParticles may not overlap enough to create a continuous surface. For contained liquids, values greater than 1.0 may force particles out of the container, making your simulation unstable. Increasing Liquid Radius Scale increase the volume of the liquid. A value 0.5 provides good results for most liquids. Lower values increase overlap between nParticles. Specifies the amount of overlap of nParticles based on nParticle Radius. A value of 2.0 provides good results for most liquids. A Rest Density of 2 specifies that, when the nParticles are settled, on average, there would be 2 nParticles overlapping at any point. Sets the arrangement of nParticles in the liquid when the nParticle object is at rest. This means that you can set Incompressibility to higher values and your simulation still settles quickly and remains stable. Increasing Substeps on the nucleus node magnifies the affect of Incompressibility.Ĭontained liquids do not react as sensitively to Incompressibility as they do to Liquid Radius Scale. Specifies the amount liquid nParticles resist compression. This allows the nParticle to overlap, which forms the continuous surface of the liquid. When on, Liquid Simulation properties are added to the nParticle object.
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