It is unclear to me how the whole thing has to be implemented in SwiftUI. Currently: After an input (for example moving the camera) the renderer function is called correctly. Goal: The renderer function should also be called without needing input. Setup: struct ContentView: View {   @ObservedObject var gameData : GameViewModel       var body: some View {     SceneView(       scene: gameData.scene,       pointOfView: gameData.camera,       options: [         .allowsCameraControl       ],       delegate: gameData     )   } } class GameViewModel: NSObject, ObservableObject { ... } extension GameViewModel: SCNSceneRendererDelegate {   func renderer(_ renderer: SCNSceneRenderer, updateAtTime time: TimeInterval) { ... } }

Setup: For displaying 3D elements Scenekit is used. For 2D elements Spritekit. SceneView() is used to display a scene. An SCNScene and an SCNNode for the camera are given. Goal: Now I want to put a 2D overlay over the SCNScene. Previously this could be achieved using the overlaySKScene property of the SCNView. But now that in SwiftUI only the scene and camera are given I wonder how this can be achieved. Thanks already in advance.