---
title: physics
framework: realitykit
role: symbol
role_heading: Type Property
path: realitykit/spatialtrackingsession/configuration/sceneunderstandingcapability/physics
---

# physics

The capability that allows the system to use scene-understanding data for physics simulation.

## Declaration

```swift
static let physics: SpatialTrackingSession.Configuration.SceneUnderstandingCapability
```

## Mentioned in

Implementing scene understanding and reconstruction in your RealityKit app