[page:Object3D] →

# [name]

A class for displaying particles in the form of variable size points. For example, if using the [page:WebGLRenderer], the particles are displayed using GL_POINTS.

## Constructor

### [name]( [page:Geometry geometry], [page:Material material] )

geometry — An instance of [page:Geometry].
material — An instance of [page:Material] (optional).

## Properties

### .[page:Geometry geometry]

An instance of [page:Geometry], where each vertex designates the position of a particle in the system.

### .[page:Material material]

An instance of [page:Material], defining the object's appearance. Default is a [page:ParticleBasicMaterial] with randomised colour.

### .[page:Boolean frustrumCulled]

Specifies whether the particle system will be culled if it's outside the camera's frustum. By default this is set to false.

## Source

[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]