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FadeInOutPlaneNode
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| private let device = MTLCreateSystemDefaultDevice()! | |
| private var fadingNode: SCNNode? | |
| extension ViewController: ARSCNViewDelegate { | |
| func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) { | |
| guard let planeAnchor = anchor as? ARPlaneAnchor else { | |
| return | |
| } | |
| // アニメーション用のPlaneNode | |
| if #available(iOS 11.3, *) { | |
| let planeGeometry = ARSCNPlaneGeometry(device: device)! | |
| planeGeometry.update(from: planeAnchor.geometry) | |
| planeGeometry.firstMaterial?.diffuse.contents = #imageLiteral(resourceName: "camera_surface_2") | |
| planeGeometry.firstMaterial?.diffuse.contentsTransform = SCNMatrix4MakeScale(2, 2, 0) | |
| planeGeometry.firstMaterial?.diffuse.wrapS = .repeat | |
| planeGeometry.firstMaterial?.diffuse.wrapT = .repeat | |
| let planeNode = SCNNode(geometry: planeGeometry) | |
| planeNode.castsShadow = false | |
| planeNode.position.y = planeNode.position.y + 0.001 // ちょっと浮かす | |
| planeNode.opacity = 0.0 | |
| planeNode.renderingOrder = 9 | |
| node.addChildNode(planeNode) | |
| } | |
| let extent = planeAnchor.extent | |
| let plane = SCNPlane(width: CGFloat(extent.x), height: CGFloat(extent.z)) | |
| let planeNode = SCNNode(geometry: plane) | |
| planeNode.eulerAngles.x = -.pi/2 | |
| planeNode.renderingOrder = 10 | |
| switch planeAnchor.alignment { | |
| case .horizontal: | |
| planeNode.name = "horizontalPlane" | |
| case .vertical: | |
| planeNode.name = "veriticalPlane" | |
| } | |
| node.addChildNode(planeNode) | |
| } | |
| func renderer(_ renderer: SCNSceneRenderer, didUpdate node: SCNNode, for anchor: ARAnchor) { | |
| guard let planeAnchor = anchor as? ARPlaneAnchor else { | |
| return | |
| } | |
| let extent = planeAnchor.extent | |
| // アニメーション用のPlaneNode | |
| if #available(iOS 11.3, *), let planeNode = findShapedPlaneNode(on: node), | |
| let geometry = planeNode.geometry as? ARSCNPlaneGeometry { | |
| geometry.update(from: planeAnchor.geometry) | |
| fadeNode(node: planeNode) | |
| } | |
| if let planeNode = node.childNode(withName: "horizontalPlane", recursively: false) { | |
| let plane = SCNPlane(width: CGFloat(extent.x), | |
| height: CGFloat(extent.z)) | |
| plane.firstMaterial?.colorBufferWriteMask = [] | |
| planeNode.geometry = plane | |
| planeNode.castsShadow = false | |
| let center = planeAnchor.center | |
| planeNode.position = SCNVector3Make(center.x, 0, center.z) | |
| } | |
| if let vrticalPlaneNode = node.childNode(withName: "veriticalPlane", recursively: false) { | |
| let plane = SCNPlane(width: CGFloat(extent.x), | |
| height: CGFloat(extent.z)) | |
| plane.firstMaterial?.colorBufferWriteMask = [] | |
| vrticalPlaneNode.geometry = plane | |
| vrticalPlaneNode.castsShadow = false | |
| let center = planeAnchor.center | |
| vrticalPlaneNode.position = SCNVector3Make(center.x, center.y, center.z) | |
| } | |
| } | |
| @available(iOS 11.3, *) | |
| private func findShapedPlaneNode(on node: SCNNode) -> SCNNode? { | |
| for childNode in node.childNodes { | |
| if childNode.geometry as? ARSCNPlaneGeometry != nil { | |
| return childNode | |
| } | |
| } | |
| return nil | |
| } | |
| private func fadeNode(node: SCNNode){ | |
| if node == fadingNode { | |
| return | |
| } | |
| let fadeIn = SCNAction.fadeOpacity(to: 0.3, duration: 1) | |
| let fadeOut = SCNAction.fadeOut(duration: 4) | |
| let group = SCNAction.sequence([fadeIn, fadeOut]) | |
| node.runAction(group, completionHandler: { | |
| node.removeFromParentNode() | |
| self.fadingNode = nil | |
| }) | |
| fadingNode = node | |
| } | |
| } | |
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この平面にhitetest result取ろうとするとBAD REQUESTでクラッシュする