usdz object is not moving while loaded with SCNReferenceNode - swift

Question

I was following Apple Documentation and example project to load 3d Object using .SCN file with Virtual Object (subclass of SCNReferenceNode) class but suddenly i needed to change the model from .scn to usdz . Now my usdz object is loading successfully but it is not on surface (midway in the air) and i can't interact with it like (tap , pan , rotate) ... Is there any other way to get interaction with usdz object and how can I place it on the surface like I was doing it before with .scn file
For getting model URL (downloaded from server)
static let loadDownloadedModel : VirtualObject = {
let downloadedScenePath = getDocumentsDirectory().appendingPathComponent("\(Api.Params.inputModelName).usdz")
return VirtualObject(url: downloadedScenePath)!
}()
Loading it from URL
func loadVirtualObject(_ object: VirtualObject, loadedHandler: #escaping (VirtualObject) -> Void) {
isLoading = true
loadedObjects.append(object)
// Load the content asynchronously.
DispatchQueue.global(qos: .userInitiated).async {
object.reset()
object.load()
self.isLoading = false
loadedHandler(object)
}
}
Placing in the scene
func placeObjectOnFocusSquare() {
virtualObjectLoader.loadVirtualObject(VirtualObject.loadDownloadedModel) { (loadedObject) in
DispatchQueue.main.async {
self.placeVirtualObject(loadedObject)
self.setupBottomButtons(isSelected: true)
}
}
}
func placeVirtualObject(_ virtualObject: VirtualObject) {
guard let cameraTransform = session.currentFrame?.camera.transform,
let focusSquarePosition = focusSquare.lastPosition else {
statusViewController.showMessage("CANNOT PLACE OBJECT\nTry moving left or right.")
return
}
Api.Params.selectedModel = virtualObject
virtualObject.name = String(Api.Params.inputPreviewId)
virtualObject.scale = SCNVector3(Api.Params.modelXAxis, Api.Params.modelYAxis, Api.Params.modelZAxis)
virtualObject.setPosition(focusSquarePosition, relativeTo: cameraTransform, smoothMovement: false)
updateQueue.async {
self.sceneView.scene.rootNode.addChildNode(virtualObject)
}
}
.usdz object in sceneview

Answer 1

After so many tries , finally i found out that dynamic scaling of the model causing problem , Reference to this
iOS ARKit: Large size object always appears to move with the change in the position of the device camera
I scaled the object to 0.01 for all the axis (x,y and z)
virtualObject.scale = SCNVector3Make(0.01, 0.01, 0.01)