---
title: exposureDuration
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/arcamera/exposureduration
---

# exposureDuration

A value you use to effect motion blur when rendering your app’s virtual content.

## Declaration

```swift
var exposureDuration: TimeInterval { get }
```

## Discussion

Discussion If you display an AR experience using a custom Metal renderer, use this value to determine how much motion blur to apply to your virtual content. If ARSCNView is your renderer, SceneKit automatically applies motion blur to your virtual content. For more information, see rendersMotionBlur.