还记得Jordan XX2吗？这个站点中一个令人叫绝的亮点——三维导航，就用到了Papervision3D这个引擎。搜索了一下，目前讨论这个引擎的文章挺多，看来还是相当流行的。有空要好好研究一下，不然就被淘汰啦。
SVN下载，目前还处于测试阶段，现在的版本是Revision 74，对比了一下之前的一些版本，改动还是挺大的。
一些资源：
updated: pv3d-examples
Aimed both for designers and advanced developers, the Tweener syntax is created with simplicity of use in mind, while still allowing access to more advanced features. Because of this, it follows a 'one-line' design mentality when creating new tweenings, with no instancing required (as it's a static Class) and a set of optional parameters. Also, there are no initialization methods required by Tweener, other than the mandatory 'import' command.
Its fluid syntax allows it to be used to tween any numeric property of any object of any class, so it is not tied to specific properties of built-in Classes such as MovieClips or TextFields. This flexibility grants a wider control on how transitions are performed, and makes creating complex sequential transitions on any kind of object easier.
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Tweener是又一个创建运动的类库，特点是“一行”调用，采用静态类设计，无需实例化，也不需要初始化。
[tags]tween, actionscript[/tags]
