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- To link the "Fluid" node to a different scene tree dragging the appropriate "Scene" node to this field
- Furthermore you have direct access to the selected "Scene" tree's → "Solver", → "Cache", and → "Display" tabs. For descriptions of these parameters follow the links.
- Quick access to the "Solver" settings comes in handy when you work with Dyverso materials (granular, viscous, viscoelastic, rigid, elastic).
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There are six different types of fluids and materials - and they are able to interact. All types, except "Dumb", are → GPUare GPU-accelerated:
- "Dumb” particles are often used for spray or foam. These particles cannot react with each other and do not have the characteristic fluid properties, but they are simulated very fast.
- "Liquid - SPH" is a very accurate fluid solver.
- "Liquid - PBD" is a very fast fluid type (faster than “Liquid - SPH”).
- "Granular" is suitable for substances like sand or snow.
- "Viscous" fluids are suited for substances like caramel, yogurt, oil, or lava.
- "Viscoelastic" is the choice of materials such as rubber, caoutchouc, silicone, or "memory foam".
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This parameter tries to limit a fluid’s expansion tendency and can be compared to atmospheric pressure. Particles tend to "stick" together with higher values. The substeps and iterations settings in the "Scene" node's → "Solver" tab influence how this parameter acts on the fluid.
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- “Viscosity” ranges between 0 and 1 and can be animated.
- To get a more rigid behaviour increase the solver's → substeps s → substeps (10/10 is a good start) and → iterationsand → iterations.
Cohesion
"Cohesion" is a force of attraction between nearby particles. With particle streams you will get a look similar to toothpaste or thick paint coming out of a tube. Any value ≥ 0 is accepted. The substeps and iterations settings in RealFlow's → "Simulation Options" influence how this parameter acts on the particles.
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Initial states can be created and activated/deactivated individually for each "Fluid" node (also see → "Initial States"). When
- enabled the initial state will be used
- disabled the initial state will be deactivated temporarily.
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