---
title: CollisionFilter
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/collisionfilter
---

# CollisionFilter

A set of masks that determine whether entities can collide during simulations.

## Declaration

```swift
struct CollisionFilter
```

## Overview

Overview Use Collision filters in combination with collision groups to define which entities collide with which other entities in a scene. For more information on using collision filters, see CollisionGroup

## Topics

### Creating a collision filter

- [init(group:mask:)](realitykit/collisionfilter/init(group:mask:).md)
- [default](realitykit/collisionfilter/default.md)
- [sensor](realitykit/collisionfilter/sensor.md)

### Customizing groups

- [group](realitykit/collisionfilter/group.md)
- [mask](realitykit/collisionfilter/mask.md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)

## See Also

### Collision shapes and groups

- [Simulating physics with collisions in your visionOS app](realitykit/simulating-physics-with-collisions-in-your-visionos-app.md)
- [Configuring Collision in RealityKit](realitykit/configuring-collision-in-realitykit.md)
- [Creating an interactive 3D model in visionOS](visionos/creating-an-interactable-3d-model-in-visionos.md)
- [CollisionComponent](realitykit/collisioncomponent.md)
- [CollisionComponent.Mode](realitykit/collisioncomponent/mode-swift.enum.md)
- [ShapeResource](realitykit/shaperesource.md)
- [ShapeResourceError](realitykit/shaperesourceerror.md)
- [CollisionGroup](realitykit/collisiongroup.md)
- [TriggerVolume](realitykit/triggervolume.md)