RealityKit Asynchronous Loading

loadEntityAsync.swift

import Combine
  
func loadEntityAsync() {
  // Create an world anchor at the origin and add it to the scene
  let anchor = AnchorEntity(world: [0,0,0])
  arView.scene.addAnchor(anchor)

  let usdzPath = "path/to/usdz/asset"
    
  // Load the asset asynchronously
  var cancellable: AnyCancellable? = nil
  cancellable = ModelEntity.loadModelAsync(named: usdzPath)
    .sink(receiveCompletion: { error in
      print("Unexpected error: \(error)")
      cancellable?.cancel()
    }, receiveValue: { entity in
      anchor.addChild(entity)
      cancellable?.cancel()
    })
}