Colliders

Colliders are nodes particles collide with. When hitting a collider, particles bounce off its surface. You can add colliders using the object browser.

Note

Alternatively, hold Ctrl and left-click on the scene view. You can then set the new collider’s vertices with additional clicks.

Types

Line collider

Line colliders combine several collision segments together and are defined by a set of points at the vertices of the line segments. They are only available for 2D effects.

Plane collider

Collider consisting of a single line (2D) or plane (3D) particles collide with.

Properties

The following properties can be adjusted in the property window to change the behavior of a collider.

General

Property	Description
Exclusion list	List of particle types not affected by the collider. Add and remove particle types via the context menu (right-click).
[Line collider] Vertices	List of vertices that form the connected line segments of the collider. You can add and remove vertices using the context menu (right-click).
Kill on contact	Whether to kill particles on contact with the collider.

Physics

Property	Description
Bounce	How strongly particles bounce off the collider after a collision.
Friction	How much particles are slowed down when sliding down the collider.