栗まんじゅう問題を体感するアプリを作って入門した ARKit + SceneKit

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    let configuration = ARWorldTrackingConfiguration() configuration.planeDetection = [.horizontal, .vertical] sceneView.session.run(configuration) // MARK: - ARSCNViewDelegate func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) { guard let planeAnchor = anchor as? ARPlaneAnchor else { fatalError() } import UIKit import SceneKit import ARKit class ViewController: UIViewController, ARSCNViewDelegate { @IBOutlet var sceneView: ARSCNView!
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    w ࠓճ͸܀·Μ͡Ύ͏Λޙ΄Ͳ૿৩ͤ͞ΔͨΊʹɺ༻ҙ͓͍ͯͨ͠܀·Μ͡Ύ͏ϊʔυΛΫϩʔϯͯ͠௥Ճ͢Δ let gesture = UITapGestureRecognizer(target: self, action: #selector(onTapSceneView)) sceneView.addGestureRecognizer(gesture) @objc func onTapSceneView(sender: UITapGestureRecognizer) { let location = sender.location(in: sceneView) let hitTestResult = sceneView.hitTest(location, types: .existingPlaneUsingExtent) if let result = hitTestResult.first { let node = kuriNode.clone() node.position = SCNVector3( result.worldTransform.columns.3.x, result.worldTransform.columns.3.y, result.worldTransform.columns.3.z ) sceneView.scene.rootNode.addChildNode(node) } }
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    let position = SCNVector3(result.worldTransform.columns.3.x, result.worldTransform.columns.3.y + 0.05, result.worldTransform.columns.3.z) let wait = SCNAction.wait(duration: 5) let add = SCNAction.run { (node) in if self.count > 0 { for _ in 0..<self.count { self.addKuriNode(parentNode: node, position: position) } self.count += self.count } else { self.addKuriNode(parentNode: node, position: position) self.count += 1 } } let repeatForever = SCNAction.repeatForever(SCNAction.sequence([add, wait])) sceneView.scene.rootNode.runAction(repeatForever)
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