I have been having the same issue and I have done a lot of testing and tweaking... I could not solve the problem yet, but here's what I found:
After doing the following:
- Enter and start RoomPlan session with a custom
ARSession passed in the creation of the RoomCaptureView constructor. - Stop the RoomPlan session with the
captureSession.stop() (I do not continue the session) function and exit the view (or the tab: I use tabs) - Enter another view non-related to RoomPlan with a custom
ARSession to try to prevent ARSession conflict. I also set the ARWorldTrackingConfiguration. I also make sure the cameraMode to .ar in the ARView constructor for the second AR view:
let arView = ARView(frame: .zero, cameraMode: .ar, automaticallyConfigureSession: false) arView.session = ARViewRepresentable.sharedARSession
I make sure to start and stop the sessions of RoomPlan and the custom ARView so that they don't conflict.
However, the camera feed is not available when I go back to the ARView. However, if I start the app and go first in the custom ARView, the camera feed works, but as soon as I open the RoomPlan session, going back to the ARView "hijacks" the camera feed.
Please note that during my tests, I was able to dicern that only the camera feed seems to be missing because when I set the debugOptions of the arView to [.showSceneUnderstanding, .showWorldOrigin], I can see the origin of the session and move around it even though the screen background is black.
I would also point that Apple seems to want us to create an ARSession and pass it to the RoomPlan to continue a AR session.
From the RoomCaptureSession in the RoomPlan framework
/// Creates a room-capture session with the given AR session.
///
/// By providing your own <doc://com.apple.documentation/documentation/arkit/arsession> object, you can continue your app's existing AR experience by seamlessly transitioning into a room-scanning session with RoomPlan. In addition, continuing an `ARSession` across multiple room-capture sessions — specifically, different rooms in the same vicinity — enables you to merge multiple ``CapturedRoom`` objects into a single captured structure. For more information, see ``CapturedStructure``.
///
/// You can access the AR session at runtime with the ``RoomCaptureSession/arSession`` property.
///
/// - parameter arSession: A world-tracking session that your app creates and runs with an <doc://com.apple.documentation/documentation/arkit/arworldtrackingconfiguration> before calling this function. If you pass an `ARSession` instance, RoomPlan preserves all of the AR session's settings. If you leave the argument blank, RoomPlan creates its own `ARSession` instance.
@available(iOS 16.0, *)
public init()
