function _updateSelector(_)
	{
//		_3dcamera.modelMatrix
		var m = _3dcamera.invModelMatrix;

		var zinv : Float = 1.0/999999.0;

		var xcenter : Float = (viewport.width / 2) - 0.5;
		var ycenter : Float = (viewport.height / 2) - 0.5;

		var xscale = viewport.width / Math.tan(_3dcamera.fov * MathUtils.TO_RADIAN);
		var yscale = viewport.height / Math.tan(_3dcamera.fov * MathUtils.TO_RADIAN);

		var vnear  = new Point3D((display.mouseX - xcenter) / xscale, (ycenter - display.mouseY) / yscale, 1);
		var vfar  = new Point3D((display.mouseX - xcenter) / (xscale * zinv), (ycenter - display.mouseY) / (yscale * zinv), 999999.0);

		trace(vnear.y);

		m.transform(vnear);
		m.transform(vfar);

//		var campos = new Point3D(0,0,128);

//		vnear.add(campos);
//		vfar.add(campos);

		var vfloor = new Point3D(0, 0, 1);

		var neardot = vnear.dot(vfloor);
		var fardot = vfar.dot(vfloor);

		trace(neardot + " " + fardot);

		if ((neardot > 0.0 && fardot < 0.0) || (neardot < 0.0 && fardot > 0.0))
		{
			var vray = vnear.clone();
			vray.sub(vfar);
			var dot = vray.dot(vfloor);
			trace(dot);
			if (dot != 0.0) {
				var rayscale = -neardot / dot;
				var vintersect = vray.clone();
				vintersect.scale(rayscale);
				vintersect.add(vnear);
				trace(vintersect);
				_selector.x = vintersect.x;
				_selector.y = vintersect.y;
				_scene.render();
			}
		}
	}