How to detect vertical planes in ARKit?

Question

How is it possible to implement a vertical plane detection (i.e. for walls)?

let configuration = ARWorldTrackingSessionConfiguration()
configuration.planeDet         


        

Answer 1

In ARKit 1.0 there was just .horizontal enum's case for detecting horizontal surfaces like a table or a floor. In ARKit 1.5 and higher there are .horizontal and .vertical type properties of a PlaneDetection struct that conforms to OptionSet protocol.

To implement a vertical plane detection in ARKit 2.0 use the following code:

configuration.planeDetection = ARWorldTrackingConfiguration.PlaneDetection.vertical

Or you can use detection for both types of planes:

private func configureSceneView(_ sceneView: ARSCNView) {

    let configuration = ARWorldTrackingConfiguration()
    configuration.planeDetection = [.horizontal, .vertical]    //BOTH TYPES
    configuration.isLightEstimationEnabled = true
    sceneView.session.run(configuration)
}

Also you can add an extension to ARSceneManager to handle the delegate calls:

extension ARSceneManager: ARSCNViewDelegate {

    func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) {
        guard let planeAnchor = anchor as? ARPlaneAnchor else { 
            return 
        }
        print("Found plane: \(planeAnchor)")
    }
}