According Apple's docs, SCNMaterial.diffuse.contents can be a AVPlayer.
In this case material appear content of video.
Everything seems ok but I get several sceneKit error logs:
 [SceneKit] Error: Could not get pixel buffer (CVPixelBufferRef)
Below is my code. Move [_player play] to viewWillAppear does't help.
- (void)viewDidLoad {
    [super viewDidLoad];
    self.boxNode = [self.sceneView.scene.rootNode childNodeWithName:@"box" recursively:YES];
    NSString *path = [[[NSBundle mainBundle] resourcePath] stringByAppendingString:@"/VRF_SuLie.MP4"];
    AVURLAsset *asset = [AVURLAsset assetWithURL:[NSURL fileURLWithPath:path]];
    AVPlayerItem *item = [AVPlayerItem playerItemWithAsset:asset];
    _player = [AVPlayer playerWithPlayerItem:item];
    self.boxNode.geometry.firstMaterial.diffuse.contents = _player;
}
-(void)viewDidAppear:(BOOL)animated{
    [super viewDidAppear:animated];
    [_player play];
}
How to avoid this error?