Set yourself as the ARSession.delegate
. Than you can implement session(_:didUpdate:)
which will give you an ARFrame
for every frame processed in your session. The frame has an camera
property that holds information on the cameras transform, rotation and position.
func session(_ session: ARSession, didUpdate frame: ARFrame) {
// Do something with the new transform
let currentTransform = frame.camera.transform
doSomething(with: currentTransform)
}
As rickster pointed out you always can get the current ARFrame
and the camera position through it by calling session.currentFrame
.
This is useful if you need the position just once, eg to move a node where the camera has been but you should use the delegate
method if you want to get updates on the camera’s position.