package
{
	import flash.events.Event;
 
	import org.papervision3d.core.math.Number3D;
	import org.papervision3d.objects.DisplayObject3D;
	import org.papervision3d.objects.primitives.Sphere;
	import org.papervision3d.view.BasicView;
 
	[SWF(width="640", height="480", backgroundColor="#000000", frameRate="60")]
	public class DistanceFrom3DMouse extends BasicView
	{
		private var sphere:Sphere = new Sphere();
		private var mouseDO3D:DisplayObject3D = new Sphere();
 
		public function DistanceFrom3DMouse ()
		{
			sphere.x = -500;
			sphere.y = 200;
 
//			scene.addChild(mouseDO3D); uncomment to see mouse sphere
			scene.addChild(sphere);
 
			startRendering();
		}
 
		override protected function onRenderTick(event:Event=null):void
		{
			var ray:Number3D = camera.unproject(viewport.containerSprite.mouseX, viewport.containerSprite.mouseY);
			ray.normalize();
			ray.multiplyEq(sphere.distanceTo(camera));
			ray = Number3D.add(ray, camera.position);
 
			mouseDO3D.position = ray;
 
			var distance:Number = sphere.distanceTo(mouseDO3D);
 
			renderer.renderScene(scene, camera, viewport);
		}
	}
}