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  "title" : "CollideTrigger"
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# CollideTrigger

A trigger that activates when specified objects collide.

## Discussion

The runtime fires this trigger when any of the prims in the list of [affectedObjects](/documentation/USD/affectedobjects) collide with any of the prims in [colliders](/documentation/USD/colliders).

If all objects can collide with each other, define [affectedObjects](/documentation/USD/affectedobjects) and [colliders](/documentation/USD/colliders) as the same list.

### Declaration

```other
class Preliminary_Trigger "CollideTrigger"
```

## Topics

### Properties

[info:id](/documentation/USD/info-id)

The action’s unique identifier.

[affectedObjects](/documentation/USD/affectedobjects)

A list of prims that respond to the notification.

[colliders](/documentation/USD/colliders)

A list of prims that interact with objects to create a collision.


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