This demo with 1000 Billboards elements added to a Mesh (http:// webdemos.sourceforge.net./Away3DDemos/Billboards/BillboardDemo.swf) runs at a consistently higher frame rate than this demo with 1000 Sprite2Ds added directly to the scene (http:// webdemos.sourceforge.net./Away3DDemos/Billboards/Sprite2DDemo.swf).
So what lets Billboards be calculated faster than Sprite2Ds?
