How do I create a looping video material in SceneKit on iOS in Swift 3?

Question

How do I create a material in SceneKit that plays a looping video?

Answer 1

Year 2019 solution:

let mat = SCNMaterial()
let videoUrl = Bundle.main.url(forResource: "YourVideo", withExtension: "mp4")!
let player = AVPlayer(url: videoUrl)
mat.diffuse.contents = player
player.actionAtItemEnd = .none
NotificationCenter.default.addObserver(self,
                                       selector: #selector(playerItemDidReachEnd(notification:)),
                                       name: .AVPlayerItemDidPlayToEndTime,
                                       object: player.currentItem)
player.play()

Code for method in selector:

@objc private func playerItemDidReachEnd(notification: Notification) {
    if let playerItem = notification.object as? AVPlayerItem {
        playerItem.seek(to: .zero, completionHandler: nil)
    }
}

Don't forget to remove your notification observer when the object is deallocated! Something like this:

NotificationCenter.default.removeObserver(self, name: .AVPlayerItemDidPlayToEndTime, object: player.currentItem)