swift – 未检测到两个节点之间的冲突ARKit

概述我创建了两个节点：一个球体和一个盒子： var sphere = SCNNode(geometry: SCNSphere(radius: 0.005)) //I get the box node from scn file let boxScene = SCNScene(named: "art.scnassets/world.scn")! var boxNode: SCNN 我创建了两个节点：一个球体和一个盒子：

var sphere = SCNNode(geometry: SCNSphere(radius: 0.005))    //I get the Box node from scn file    let BoxScene = SCNScene(named: "art.scnassets/world.scn")!    var BoxNode: SCNNode?

我想要两个节点或physicsBody进行交互,所以我为categoryBitMask和contactTestBitMask创建了一个类别：

struct Collisioncategory: OptionSet {    let rawValue: Int    static let Box = Collisioncategory(rawValue: 1)    static let sphere = Collisioncategory(rawValue: 2)}

在这里,我将盒子节点设置为物理体：

self.BoxScene.rootNode.enumerateChildNodes { (node,_) in    if node.name == "Box" {        BoxNode = node        let BoxBodyShape = SCNPhysiCSShape(geometry: SCNBox(wIDth: 0.1,height: 0.1,length: 0.1,chamferRadius: 0.1),options: nil)        let physicsBody = SCNPhysicsBody(type: .static,shape: BoxBodyShape)        BoxNode!.physicsBody = physicsBody        BoxNode!.physicsBody?.categoryBitMask = Collisioncategory.Box.rawValue        BoxNode!.physicsBody?.contactTestBitMask = Collisioncategory.sphere.rawValue        BoxNode!.physicsBody?.collisionBitMask = BoxNode!.physicsBody!.contactTestBitMask    }}

在这里,我在渲染函数中设置了球体节点,您可以在视图中移动：

func setUpSphere() {         let sphereBodySphere = SCNPhysiCSShape(geometry: SCNSphere(radius: 0.005))         let physicsBody = SCNPhysicsBody(type: .kinematic,shape: sphereBodySphere)         sphere.physicsBody = physicsBody         sphere.physicsBody?.categoryBitMask = Collisioncategory.sphere.rawValue         sphere.physicsBody?.contactTestBitMask = Collisioncategory.Box.rawValue         sphere.geometry?.firstMaterial?.diffuse.contents = UIcolor.blue         sphere.physicsBody?.collisionBitMask = sphere.physicsBody!.contactTestBitMask         prevIoUsPoint = currentposition }///It Adds a sphere and changes his positionfunc renderer(_ renderer: SCNSceneRenderer,willRenderScene scene: SCNScene,atTime time: TimeInterval) {    guard let pointOfVIEw = sceneVIEw.pointOfVIEw else { return }    let mat = pointOfVIEw.transform    let dir = SCNVector3(-1 * mat.m31,-1 * mat.m32,-1 * mat.m33)    let currentposition = pointOfVIEw.position + (dir * 0.185)    if buttonpressed {        if let prevIoUsPoint = prevIoUsPoint {            sphere.position = currentposition            sceneVIEw.scene.rootNode.addChildNode(sphere)        }     }}

我将协议SCNPhysicsContactDelegate添加到VIEwController,
我在VIEwDIDLoad()中设置：

overrIDe func vIEwDIDLoad() {    super.vIEwDIDLoad()    sceneVIEw.delegate = self    sceneVIEw.scene.physicsWorld.contactDelegate = self    ///I correctly see the shapes of the sphere and the Box physics            bodIEs using    sceneVIEw.deBUGOptions = .showPhysiCSShapes    createBox()    setUpSphere()    sceneVIEw.scene = BoxScene    sceneVIEw.scene.physicsWorld.contactDelegate = self}

然后我添加了这个功能：

func physicsWorld(_ world: SCNPhysicsWorld,dIDEnd contact: SCNPhysicsContact) {        print("Collision!")}

这就是发生的事情.

当两个节点碰撞时没有任何反应,所以我不知道这两个物体是否在接触.问题可能是关于.kinematic,.static还是关于函数render()？
我在ARKit：Tutorial 1,Tutorial 2中逐步跟踪了有关碰撞的不同教程.
我不知道它为什么不像预期的那样工作.
我的代码中有什么问题吗？

下载文件代码链接：https://ufile.io/20sla

解决方法 每次渲染场景时,willRenderScene都会被称为uptown 60次.因为你每次重建物理体时都会重新发现物理引擎确定碰撞.

尝试将代码更改为仅在设置期间创建物理主体一次.

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