/** * ... * @author Default * @version 0.1 */ package org.papervision3d.core.effects { import flash.filters.BitmapFilter; import org.papervision3d.view.layer.BitmapEffectLayer; public class AbstractEffect implements IEffect{ function AbstractEffect(){} public function attachEffect(layer:BitmapEffectLayer):void{} public function preRender():void{} public function postRender():void{} public function getEffect():BitmapFilter{ return null; } } }