[問題]as3 Filter如何照Enterframe啟用?

[ADRIA (閉區裡)]

此為as3的loading效果
目的是想要達到loading完成>淡出+blur>轉換成下一場景
目前卡在blur濾鏡地方 blur數值要如何跟著enterframe跑?~~
希望有會的大哥能高抬貴手幫忙一下
小弟受教了
this.root.loaderInfo.addEventListener(ProgressEvent.PROGRESS, progessrun);
this.root.loaderInfo.addEventListener(Event.COMPLETE,nextpage);
function progessrun(event:ProgressEvent):void {
        var percent:Number = event.bytesLoaded / event.bytesTotal;
        loadObj.bar_mc.gotoAndPlay(Math.floor(percent * 100));
        loadObj.percent_txt.text="進度"+String(Math.floor(percent * 100))+"%";
        stop();
}
function nextpage(e:Event):void {
        loadObj.addEventListener(Event.ENTER_FRAME,removeHandler);
}


function removeHandler(e:Event) {

        loadObj.cacheAsBitmap = true;

------問題點在這------------------------------------------
        var blur:BlurFilter = new BlurFilter();
        blur.quality = BitmapFilterQuality.MEDIUM;
        loadObj.filters = [blur];
        blur.blurX +=1;
        blur.blurY +=1 ;
------------------------------------------------------------
        loadObj.alpha -= (1+loadObj.alpha)*0.01;
        trace(loadObj.alpha,blur.blurX ,blur.blurY );
        我trace了這三個值~為何blur不會跟著運算跑?這邊我想不通~

        if (loadObj.alpha <= 0) {
                loadObj.removeEventListener(Event.ENTER_FRAME, removeHandler);
                nextScene();
        }
}

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