Fluid simulation is a special section of visual effects. The simulation process has a large number of features.
The liquid has a number of properties that are not presented in other systems. And we have a deal with density, viscosity, pressure and even surface tension. All this greatly affects on the result. And if you also take into account the different scale of the simulations — from drops of dew on the leaf to the giant tsunami, it becomes clear — why it is so difficult to create such things in CG.
Some 3D packages have their own tools for fluid simulations Houdini — Fluid Solver, 3ds max — PhoenixFD plugin, Maya — Bifrost, Cinema4D — RealFlow plugin.
But, unlike them, RealFlow was created directly for this kind of simulation — liquid. From the first versions, it has a big changes and every time it becomes more interesting and diverse in terms of tools and opportunities.
In this package, using the example of various scenes, I’ll try to show you the possibilities of the program in different situations, using different particle systems, tools and scales.