Betel is a physics and graphical engine for "paper puppet" animation - cut-out images can be assembled with pivot points, and then animated using the mouse or recorded movements.
This is an open source SWF authoring library with C++ class interface. Supports flash movies generation up to version 3.
The goal of this project is to enable World of Warcraft Machinima Creators to create more customized movies, by removing limitions using a Machinima Server and a Machinima GUI Add-on. THIS IS NOT A WOW SERVER EMULATOR.