Search public documentation:


Interested in the Unreal Engine?
Visit the Unreal Technology site.

Looking for jobs and company info?
Check out the Epic games site.

Questions about support via UDN?
Contact the UDN Staff

UE3 Home > Particle & Effects > Particles Systems

Particles Systems


In the most general sense, a particle is a object which has a location and can be assigned any number of properties to determine its look and behavior. In order to create interesting and complex effects, particles are spawned from one or more emitters, each emitting particles which all have similar characteristics. In Unreal Engine 3, groups of emitters can be created and stored in a single asset that all combine to create a single effect. These assets are called Particle Systems.

Particle Systems are used to create all sorts of effects used within games. The most common use is probably to create volumetric-type effects such as fire, smoke, steam, explosions, etc. Particles can also be used to create projectiles to be fired from weapons, falling leaves from a tree, birds flying in the sky, or any number of other effects.

General Topics

Content Creation Topics

Related Topics