 	import aerys.minko.type.IVersionnable;
 	
 	import flash.display.DisplayObject;
+	import flash.display.Graphics;
+	import flash.display.Shape;
 	import flash.display.Sprite;
 	import flash.display.Stage3D;
 	import flash.display.StageAlign;

			return _visitors;
		}
		
		/**
		 * Creates a new Viewport object.
		 *

		
		private function addedToStageHandler(event : Event) : void
		{
			var stageId	: int	= 0;
			
			_stage3d = stage.stage3Ds[stageId];
			
