Hi, I have a same problem for display 3D view in mxml.
my problem is display 3D stuff in popup window, and I have set backgroundAlpha=“0” for both Application and the popup window.
It is displaying the 3D stuff, but when I close the popup window, then there is a cache 3D image in the background, please see my attachment.
is there any way to clean it?
Application
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:local="*"
minWidth="955" minHeight="600" backgroundAlpha="0">
<fx:Script>
<![CDATA[
import mx.managers.PopUpManager;
private function openPopupWindow():void
{
var window:popupWindow = PopUpManager.createPopUp(this, popupWindow) as popupWindow;
PopUpManager.centerPopUp(window);
}
]]>
</fx:Script>
<mx:Button label="Open Widnow" click="openPopupWindow()" />
</mx:Application>
Popup Window
<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
xmlns:local="*"
title="Popup Window" backgroundAlpha="0"
layout="vertical" width="1024" height="768"
showCloseButton="true" close="PopUpManager.removePopUp(this)">
<fx:Script>
<![CDATA[
import mx.managers.PopUpManager;
]]>
</fx:Script>
<!-- 3D Viewer -->
<local:Viewer width="100%" height="100%" />
</mx:TitleWindow>
