PlaneNode

PlaneNode.swift

import ARKit
import SceneKit

public class PlaneNode: SCNNode {

    // MARK: - Public functions

    public func update(from planeAnchor: ARPlaneAnchor) {
        // We need to create a new geometry each time because it does not seem to update correctly for physics
        guard let device = MTLCreateSystemDefaultDevice(),
            let geom = ARSCNPlaneGeometry(device: device) else {
                fatalError()
        }

        geom.firstMaterial?.diffuse.contents = UIColor.blue.withAlphaComponent(0.3)
        geom.update(from: planeAnchor.geometry)

        // We modify our plane geometry each time ARKit updates the shape of an existing plane
        geometry = geom
}