nxFluids

nxFluids enables you to setup fluid simulations with a choice of solvers: PBD (position-based dynamics) and SPH (Smoothed-Particle Hydrodynamics).

Both solvers are fast, accurate and provide realistic fluid motion.

This can make it difficult to decide which solver to choose.

Generally speaking, SPH should be the choice for mid to large scale scenes, where realism is key.

Also, SPH is able to solve granular simulations for snow and sand scenes.

PBD is better suited to small to mid-scale scenes.

It also works very well alongside nxConstraints and modifiers, to create stylized simulations that push the boundaries of what is physically accurate.

nxFluids - PBD solver parameters

nxFluids - SPH solver parameters

Groups Affected tab

Groups

To specify the group, drag and drop the desired Group object into this field.

This setting is useful if you want to ensure that the spawned particles are, or are not, affected by nxFluids.

Mapping tab

The modifier’s settings can be mapped to particle data.

Use the dedicated manual page, below, for instructions on how this works.

Mapping

Fields tab

You can use the Fields options to control where nxFluids operates.

nxFluids tags enable you to individually set the fluid properties per emitter, to give individual emitters their own liquid settings.

This enables the mixing of different fluid types like oil and water.

nxFluids - Emitter tags