scanPassID

If captured with ObjectCaptureSession, this will contain the ID of the scan pass within the given sessionID in which this sample was captured. Each new scan pass within a specific sessionID will have a different scanPassID which can be used to differentiate any associated boundingBox data since a new bounding box may have been created after flipping an object and starting a new pass. Note that scanPassID can only be equated if the sessionID is the same – if the sessionID of two samples is different but the scanPassID is the same, these are semantically different coordinate systems and data between them is not commensurate. Note that for samples not captured with ObjectCaptureSession (where sessionID is nil), this scanPassID is also nil.

var scanPassID: Int? { get }