RealityKit

Question

我一直在使用 Reality Composer 和 Frame Entity，方法是从库中下载。

我想访问对象的属性以编程方式提供要在框架中显示的图像。

在这里你可以看到有一个配置，我可以从我的画廊导入照片。但我想以编程方式进行。那就是我想访问框架对象的属性并以编程方式提供图像。

但是我做不到

do {
    let boxAnchor = try ImageFrame.loadScene()
        
    guard let imageFrame = boxAnchor.findEntity(named: "imageFrame")
    else { return }

    //how to access the property of imageFrame???
    arView.scene.anchors.append(boxAnchor)
} catch {
    print("error: \(error.localizedDescription)")
}

如何以编程方式提供图像？

Answer 1

当然需要在model的.

深处寻找需要的ModelEntity

使用这个 SwiftUI 解决方案：

struct ARViewContainer: UIViewRepresentable {
    
    func makeUIView(context: Context) -> ARView {
        
        let arView = ARView(frame: .zero)
        let pictureScene = try! Experience.loadPicture()
        pictureScene.children[0].scale *= 4
        
        print(pictureScene)
        
        let edgingModel = pictureScene.masterpiece?.children[0] as! ModelEntity

        edgingModel.model?.materials = [SimpleMaterial(color: .brown,
                                                  isMetallic: true)]
        
        var mat = SimpleMaterial()

        // Here's a great old approach for assigning a texture in iOS 14.5
        mat.baseColor = try! .texture(.load(named: "MonaLisa", in: nil))
        
        let imageModel = pictureScene.masterpiece?.children[0]
                                                  .children[0] as! ModelEntity
        imageModel.model?.materials = [mat]
        
        arView.scene.anchors.append(pictureScene)
        return arView
    }

    func updateUIView(_ uiView: ARView, context: Context) { }
}

RealityKit – 如何以编程方式访问场景中的属性？

RealityKit – How to access the property in a Scene programmatically?

augmented-reality

swift

swiftui

reality-composer