Flash Interactive Vector Based 3D: FIVe3D
Posted on 16 April 2008.
The FIVe3D initiative is an open source code for the conception of interactive vector- based 3D animations. The classes originally written in Actionscript 2.0 and based on the Actionscript 3.0 structure are now ported in Actionscript 3.0. The FIVe3D system provides extra 2D functionalities.
This is huge for the Flash industry as FIVe3D always provided exceptional 3D support within the Flash environment. FIVe3D now joins other big 3D engines by switching it’s platform to Actionscript 3.0. Online documentation will be available soon at FIVe3D’s home site. Below are a few examples of FIVe3D.
Examples of FIVe3D at work
Elements Menu

Fake Equalizer
Famous Quote
Source: FIVe3D

This is a great engine. If anyone’s looking for more examples of what it can do, you can take a look at these:
1930s logo
Text cloud
I’ve also found it much easier to work with than Papervision (which seems to be somewhat of a standard at the moment), but that’s just my opinion.
i am really eager to get the documentation cos i need the documentation to learn five3d. when it will come out?