// write as3 code here.. package{ import flash.display.*; import flash.events.*; public class NoiseTest extends MovieClip{ private var _bitmapdata:BitmapData; private var _bitmap:Bitmap; public function NoiseTest(){ _bitmapdata = new BitmapData(stage.stageWidth,stage.stageHeight,true); _bitmap = new Bitmap(_bitmapdata); addChild(_bitmap); addEventListener(Event.ENTER_FRAME,enterFrameHandler); } private function enterFrameHandler(e:Event):void{ var low:Number=Math.random()*64; var high:Number=Math.random()*128+128; _bitmapdata.noise(1,low,high,1|2|4,false); } } }