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# session(_:didUpdate:)

Provides a newly captured camera image and accompanying AR information to the delegate.

```
optional func session(_ session: ARSession, didUpdate frame: ARFrame)
```

## Parameters

`session`

The session providing information.

`frame`

An object containing the new camera image and AR information.

## Discussion

Implement this method if you provide your own display for rendering an AR experience. The provided [`ARFrame`](/documentation/ARKit/ARFrame) object contains the latest image captured from the device camera, which you can render as a scene background, as well as information about camera parameters and anchor transforms you can use for rendering virtual content on top of the camera image.

---

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