#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) IBOutlet ARSCNView *sceneView;@end? ? @implementation ViewController- (void)viewDidLoad {? ? [super viewDidLoad];? ? // Set the view's delegate? ? self.sceneView.delegate = self;? ? ? ? // Show statistics such as fps and timing information? ? self.sceneView.showsStatistics = YES;? ? ? ? // Create a new scene? ? SCNScene *scene = [SCNScene sceneNamed:@"art.scnassets/ship.scn"];? ? ? ? // Set the scene to the view? ? self.sceneView.scene = scene;}- (void)viewWillAppear:(BOOL)animated {? ? [super viewWillAppear:animated];? ? ? ? // Create a session configuration? ? ARWorldTrackingSessionConfiguration *configuration = [ARWorldTrackingSessionConfiguration new];? ? ? ? // Run the view's session? ? [self.sceneView.session runWithConfiguration:configuration];}- (void)viewWillDisappear:(BOOL)animated {? ? [super viewWillDisappear:animated];? ? ? ? // Pause the view's session? ? [self.sceneView.session pause];}- (void)didReceiveMemoryWarning {? ? [super didReceiveMemoryWarning];? ? // Release any cached data, images, etc that aren't in use.}#pragma mark - ARSCNViewDelegate/*// Override to create and configure nodes for anchors added to the view's session.- (SCNNode *)renderer:(id)renderer nodeForAnchor:(ARAnchor *)anchor {
SCNNode *node = [SCNNode new];
// Add geometry to the node...
return node;
}
*/
- (void)session:(ARSession *)session didFailWithError:(NSError *)error {
// Present an error message to the user
}
- (void)sessionWasInterrupted:(ARSession *)session {
// Inform the user that the session has been interrupted, for example, by presenting an overlay
}
- (void)sessionInterruptionEnded:(ARSession *)session {
// Reset tracking and/or remove existing anchors if consistent tracking is required
}
@end
