Providing a clear signal for when we should call initiateRoomCapture #40
Description
Having the ability to request room capture from the application is definitely useful, but currently there doesn't seem to be a straightforward way to determine whether it's necessary or not. It seems like currently the best way to check would be to wait for a certain amount of frames where detectedPlanes remained empty, but the fact that there's an uncertain amount of dead time before room capture would be called feels less than ideal.
If there's a way that the browser could surface this (either through a property on XRSystem or on XRSession perhaps) in a way that one could immediately check it'd definitely be more convenient.