英文:
How to activate RealityKit gestures for Model entity?
问题
在下面的代码中，我创建了一个模型实体并加载了一个名为"stone"的3D模型。然后，我将generateCollisionShapes设置为true。然后，我应该能够将手势安装到视图中，但我收到一个错误，说我的模型实体不符合类型'HasCollision'。
我需要一些帮助让这个工作起来。任何反馈都将不胜感激。
import ARKit
import RealityKit
class Coordinator: NSObject {
weak var view: ARView?
@objc func handleTap(_ recognizer: UITapGestureRecognizer) {
guard let view = self.view else { return }
let tapLocation = recognizer.location(in: view)
let results = view.raycast(from: tapLocation,
allowing: .estimatedPlane,
alignment: .horizontal)
if let result = results.first {
let anchor = AnchorEntity(raycastResult: result)
guard let modelEntity = try? ModelEntity.load(named: "stone")
else {
print("没有找到模型")
return
}
modelEntity.generateCollisionShapes(recursive: true)
anchor.addChild(modelEntity)
view.scene.addAnchor(anchor)
view.installGestures(.all, for: modelEntity)
}
}
}
英文:
In the code below, I create a model entity and load a 3d model named "stone". I then set generateCollisionShapes to true. I should then be able to install gestures to the view but I'm getting an error saying my model entity doesn't conform to the type 'HasCollision'.
I need some help getting this to work. Any feedback is appreciated.
import ARKit
import RealityKit
class Coordinator: NSObject {
weak var view: ARView?
@objc func handleTap(_ recognizer: UITapGestureRecognizer) {
guard let view = self.view else { return }
let tapLocation = recognizer.location(in: view)
let results = view.raycast(from: tapLocation,
allowing: .estimatedPlane,
alignment: .horizontal)
if let result = results.first {
let anchor = AnchorEntity(raycastResult: result)
guard let modelEntity = try? ModelEntity.load(named: "stone")
else {
print("didn't find model")
return
}
modelEntity.generateCollisionShapes(recursive: true)
anchor.addChild(modelEntity)
view.scene.addAnchor(anchor)
view.installGestures(.all, for: modelEntity)
}
}
}
答案1
得分: 1
你应该使用 Entity.loadModel(...) 方法，而不是 ModelEntity.load(...)。
guard let modelEntity = try? Entity.loadModel(named: "stone") else { return }
modelEntity.generateCollisionShapes(recursive: true)
arView.installGestures([.all], for: modelEntity as Entity & HasCollision)
附注：
- 不建议将ARView对象声明为UIView的“view” - 声明为“arView”。
英文:
You should use Entity.loadModel(...) method instead of ModelEntity.load(...)
guard let modelEntity = try? Entity.loadModel(named: "stone") else { return }
modelEntity.generateCollisionShapes(recursive: true)
arView.installGestures([.all], for: modelEntity as Entity & HasCollision)
P. S.
- It's not good to declare an ARView object as UIView's
view– declare it asarView.
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