example_augmentedOffice_startTracking.swift

override func viewWillAppear(_ animated: Bool) {
	super.viewWillAppear(animated)
	startTracking()
}

private func startTracking() {
	sceneView.debugOptions = [ARSCNDebugOptions.showFeaturePoints]
	let configuration = ARWorldTrackingConfiguration()
	configuration.planeDetection = [.vertical, .horizontal]
	sceneView.session.run(configuration, options: [.resetTracking, .removeExistingAnchors])
}