Protocol

ARSCNViewDelegate

Methods you can implement to mediate the automatic synchronization of SceneKit content with an AR session.

Declaration

protocol ARSCNViewDelegate

Overview

Implement this protocol to provide SceneKit content corresponding to ARAnchor objects tracked by the view's AR session, or to manage the view's automatic updating of such content.

This protocol extends the ARSessionObserver protocol, so your session delegate can also implement those methods to respond to changes in session status.

Topics

Handling Content Updates

func renderer(SCNSceneRenderer, nodeFor: ARAnchor) -> SCNNode?

Asks the delegate to provide a SceneKit node corresponding to a newly added anchor.

func renderer(SCNSceneRenderer, didAdd: SCNNode, for: ARAnchor)

Tells the delegate that a SceneKit node corresponding to a new AR anchor has been added to the scene.

func renderer(SCNSceneRenderer, willUpdate: SCNNode, for: ARAnchor)

Tells the delegate that a SceneKit node's properties will be updated to match the current state of its corresponding anchor.

func renderer(SCNSceneRenderer, didUpdate: SCNNode, for: ARAnchor)

Tells the delegate that a SceneKit node's properties have been updated to match the current state of its corresponding anchor.

func renderer(SCNSceneRenderer, didRemove: SCNNode, for: ARAnchor)

Tells the delegate that the SceneKit node corresponding to a removed AR anchor has been removed from the scene.

Relationships

Inherits From

See Also

Responding to AR Updates

var delegate: ARSCNViewDelegate?

An object you provide to mediate synchronization of the view's AR scene information with SceneKit content.