---
title: SceneUpdateContext
framework: realitykit
role: symbol
role_heading: Structure
path: realitykit/sceneupdatecontext
---

# SceneUpdateContext

An object that contains information about the scene to update.

## Declaration

```swift
struct SceneUpdateContext
```

## Mentioned in

Passing Metal command objects around your application

## Overview

Overview RealityKit uses a SceneUpdateContext to pass information to a System about the scene it’s currently updating.

## Topics

### Updating a scene

- [scene](realitykit/sceneupdatecontext/scene.md)
- [deltaTime](realitykit/sceneupdatecontext/deltatime.md)

### Instance Methods

- [entities(matching:updatingSystemWhen:)](realitykit/sceneupdatecontext/entities(matching:updatingsystemwhen:).md)

## See Also

### System configuration

- [Implementing systems for entities in a scene](realitykit/implementing-systems-for-entities-in-a-scene.md)
- [Animating entity rotation with a system](realitykit/animated-rotation-with-a-system.md)
- [System](realitykit/system.md)
- [SystemUpdateCondition](realitykit/systemupdatecondition.md)