import MTTransitions

let transition = MTBounceTransition()
transition.inputImage = <from Image>
transition.destImage = <to Image>

// animate progress from 0.0 to 1.0

imageView.image = transition.outputImage

let effect = MTPerlinTransition()

MTTransition.transition(with: view, effect: effect, animations: {
    // Do your animation to your view
}) { (_) in
    // Transition completed
}

class PushAViewController: UIViewController {

    private let transition = MTViewControllerTransition(transition: MTBurnTransition())
    
    // ...
}

extension PushAViewController: UINavigationControllerDelegate {
    
    func navigationController(_ navigationController: UINavigationController, animationControllerFor operation: UINavigationController.Operation, from fromVC: UIViewController, to toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        if operation == .push {
            return transition
        }
        return nil
    }
}

class PresentAViewController: UIViewController {

    // ...
    
    let vc = PresentBViewController()
    vc.modalPresentationStyle = .fullScreen
    vc.transitioningDelegate = self
    present(vc, animated: true, completion: nil)
}

extension PresentAViewController: UIViewControllerTransitioningDelegate {
    
    func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        return transtion
    }
    
    func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        return transtion
    }
}

// pick one transtion effect
let effect = MTTransition.Effect.wipeLeft
let duration = CMTimeMakeWithSeconds(2.0, preferredTimescale: 1000)
try? videoTransition.merge(clips,
                           effect: effect,
                           transitionDuration: duration) { [weak self] result in

    guard let self = self else { return }
    let playerItem = AVPlayerItem(asset: result.composition)
    playerItem.videoComposition = result.videoComposition
    
    self.player.seek(to: .zero)
    self.player.replaceCurrentItem(with: playerItem)
    self.player.play()
}

let fileURL = URL(fileURLWithPath: path)
movieMaker = MTMovieMaker(outputURL: fileURL)
do {
    try MTMovieMaker?.createVideo(with: images, effects: effects) { result in
        switch result {
        case .success(let url):
            print(url)
        case .failure(let error):
            print(error)
        }
    }
} catch {
    print(error)
}