With so few online resources readily available for creating crowds, the ability to do just that in Houdini 20 was exciting for me. A crowd system is made up of characters that have a set of rules to define their appearance, animations and interactions. Such crowds are essentially animated characters attached to particles, with the movement of those characters, commonly called agents, in a crowd simulation based on an underlying particle simulation in DOPs.

Before you get stuck in, check out our Houdini guide for everything you need to know before using the industry-standard VFX package and for some detailed insight, check out our Houdini 20 review.