example_augmentedOffice_nodeForAnchor.swift

func renderer(_ renderer: SCNSceneRenderer, nodeFor anchor: ARAnchor) -> SCNNode? {
	guard let plane = anchor as? ARPlaneAnchor,
		let device = renderer.device,
		let geometry = ARSCNPlaneGeometry(device: device)
		else { return nil }
	geometry.update(from: plane.geometry)
	let maskMaterial = SCNMaterial()
	maskMaterial.colorBufferWriteMask = []
	geometry.materials = [maskMaterial]
	let node = SCNNode(geometry: geometry)
	node.renderingOrder = -1
	return node
}