When i call queryDeviceAnchor in my Billboard system I get transform updates but I'm unsure how to process them (similar to the Diorama sample app).
Is it a bug that I recieve these updates? The documentation says that ARKit data is only provided in a full space so I would expect this not to work at all.
But if this is the case, why am I getting deviceAnchor values in this situation?
Did you ever get to the bottom of this? I'd really like to know the position of the device when in a volumetric window. It seems like this is not possible.
Hey, You can use the WorldProvider to do it:
public struct WorldDataProvider { private let arkitSession = ARKitSession() private let worldTrackingProvider = WorldTrackingProvider()
func setUpSession() {
Task {
do {
try await arkitSession.run([worldTrackingProvider])
} catch {
print("Error: \(error)")
}
}
}
func getDeviceTransform() -> Transform? {
guard let deviceAnchor =
worldTrackingProvider.queryDeviceAnchor(atTimestamp: CACurrentMediaTime())
else { return nil }
return Transform(matrix: deviceAnchor.originFromAnchorTransform)
}
With that you can get the DeviceAnchor and obtain orientation, position.... You need to start the session before try to get the device position.
More info: https://developer.apple.com/documentation/arkit/worldtrackingprovider
