We have a requirement that we need to place a model in the ar scene of RealityKit, and then click a button to trigger the photo function, so that the camera interface is fixed, but the model can be dragged and enlarged and rotated in the current screen. I tried to use arView's nonar mode to fix the interface, but I couldn't use a camera image as the background, because arView's sky box background requires pre-compiled images into the project, and the model can only be zoomed and rotated in nonAr mode, not dragged.