public MySceneView (RectangleF frame) : base(frame)
{
	BackgroundColor = UIColor.Blue;
	this.Scene = new SCNScene ();

	var material = new SCNMaterial ();
	material.Diffuse.Contents = UIImage.FromFile("textureX.png");
	material.Specular.Contents = UIColor.Gray;
	material.LocksAmbientWithDiffuse = true;

	Scene.RootNode.Geometry = new SCNBox {
		Width = 1,
		Height = 1,
		Length = 1,
		ChamferRadius = 0.2f,
		FirstMaterial = material
	};

	Scene.RootNode.Light = new SCNLight {
		LightType = SCNLightType.Ambient,
		Color = UIColor.Gray,
	};

	var camera = new SCNCamera ();
	var cameraNode = new SCNNode () {
		Camera = camera,
		Position = new SCNVector3 (3, 3, 3),
		Constraints = new SCNConstraint[] { SCNLookAtConstraint.Create(Scene.RootNode) }
	};
	Scene.RootNode.AddChildNode (cameraNode);
}