World

The world classes are the centre of the engine, where the fluid gets animated.

Velocity Field

The velocity field is field where each entry gives the current speed of the fluid and its direction. This field is used to evolve the fluid, which means that additional velocity can be added (or substracted) to it.

Smoke World

This is a type of fluid simulation where the fluid area doesn’t move.

Water World

This is a classical water type of fluid simulation.