Adding Game Objects

Create a new setupGame function. We start adding game objects to the scene. To do this, add the following to the setupGame function.

Stop detecting planes

The first thing we do in the setupGame function is disable the checking of planes in the scene. Add the following code to change the configuration and run the new configuration:

configuration.planeDetection = ARWorldTrackingConfiguration.PlaneDetection(rawValue: 0)
sceneView.session.run(configuration)

Adding light source

Then we add a light source to the scene:

        let directionLight = SCNLight()
        directionLight.type = SCNLight.LightType.directional
        directionLight.castsShadow = true
        directionLight.shadowRadius = 200
        directionLight.shadowColor = UIColor(red: 0,
 								   green: 0,
 								   blue: 0,
 								   alpha: 0.3)
        directionLight.shadowMode = .deferred
        
        let directionLightNode = SCNNode()
        directionLightNode.light = directionLight
        directionLightNode...