---
title: sceneUnderstanding
framework: realitykit
role: symbol
role_heading: Type Property
path: realitykit/collisiongroup/sceneunderstanding
---

# sceneUnderstanding

The default collision group for scene-understanding meshes.

## Declaration

```swift
static let sceneUnderstanding: CollisionGroup
```

## Discussion

Discussion See Implementing scene understanding and reconstruction in your RealityKit app for usage and platform availability of SpatialTrackingSession.Configuration.SceneUnderstandingCapability and ARView.Environment.SceneUnderstanding. See Implementing scene understanding and reconstruction in your RealityKit app for a complete overview of scene-understanding functionality.

## See Also

### Standard collision groups

- [default](realitykit/collisiongroup/default.md)
- [all](realitykit/collisiongroup/all.md)