 		private static const CULLING_SPHERE		: uint				= 0x00000001;
 		private static const CULLING_BOX		: uint				= 0x00000002;
 
-		private static const SPANNING			: uint				= 0x0000000f;
-
 		private static const TMP_NUMBERS_1		: Vector.<Number>	= new <Number>[];
 		private static const TMP_VECTOR4		: Vector4			= new Vector4();
-
-		private static const THICKNESS			: Number			= 0.0001;
 
 		private var _points			: Vector.<Vector4>				= null;
 		private var _planes			: Vector.<Plane>				= new <Plane>[

			var radius	: Number	= sphere.radius;
			var result	: int		= 0;
			var p 		: Plane		= null;
			var d 		: Number	= 0.;

			if (!culling)
				return INSIDE;

			var radius		: Number			= boundingSphere.radius;
			var result		: int				= 0;
			var vertices	: Vector.<Number>	= boundingBox._vertices;

			if ((cullingMask & FrustumCulling.BOX) != 0 && transform != null)
			{
