Controlled Discrete Streams
This document explains concepts and creation of procedural particle simulation in Houdini.
The examples demonstrate how the emission of particles can be controlled by using expressions or control objects.
Controlling the emission of particles is the fundamental tasks of any particle simulation. While one can visualise situations where there is a continuous – uncontrolled – particle emission, in most cases the emission is likely to be controlled by an artist. Therefore we need to supply tools and techniques that enable us to do so in an abstract – user friendly – way.