在ARKit中如何在没有物理交互的情况下检测渗透? [英] How to detect penetration without physical interaction in ARKit?

问题描述

我有一个固定的激光束SCNNode和一个安装在相机前面的检测球SCNNode.

I have a fixed laser beam SCNNode and a detecting sphere SCNNode attached in front of a camera.

如何在没有物理交互的情况下检测渗透?我还没有发现任何线索.

How to detect penetration without physical interaction? I have not found any clue..

-如以下maxxFrazer所建议，我实现了物理交互，并且如果我的激光束是.static且检测器是由摄像机设置的.kinematic移动的，则能够记录碰撞.

- as suggested below by maxxFrazer I implemented physical interaction and I'm able to register collision IF my laser beam is .static and detector moved by camera set .kinematic.

推荐答案

您似乎想使用一个SceneKit解决方案，而不是RealityKit.并且还想找到两个实际节点何时相交，而不是hitTest或raycast?如果是这样，我试图在下面解释如何设置它……

It looks like you want to use a SceneKit solution, not RealityKit. And also want to find when two actual nodes intersect rather than a hitTest or raycast? If so, I've attempted to explain how to set that up below…

首先将PhysicalBody和 categoryBitMask + contactTestBitMask .这两个基本上是在说SCNNode主体是什么类别，以及它可以与哪些类别发生冲突.

First add a physicsBody to the SCNNode, along with a categoryBitMask + contactTestBitMask. These two are basically saying what category your SCNNode body is, and what categories it can collide with.

然后，您还需要将SCNScene.physicsWorld.contactDelegate设置为符合的对象SCNPhysicsContactDelegate ，这样您就可以使用在此处找到的PhysicsWorld回调.

You then also need to set up your SCNScene.physicsWorld.contactDelegate to an object which conforms to SCNPhysicsContactDelegate, this is so you can use the physicsWorld callbacks found here.

关于堆栈溢出还有另一个问题，可能会帮助您完成这项工作:

There's another question on stack overflow which may help in making this work for you:

在SceneKit问题中检测冲突

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