After a lot of prodding about under the hood of Acrobat 9 with a not-inconsiderably-small hammer, we've been able to post a free two-parter tutorial at AcrobatUsers.com, covering how to insert Flash SWF files into a 3D scene (inside a PDF document!) and use them as interactive, animated materials and textures.
Part 1 is here, a good place to start!
To build these types of PDF you need to be using Acrobat 9 Pro Extended, but you can open them in Reader 9 and any flavor of Acrobat 9. The possibilities for this as-yet-quite-secret ability of the rich media PDF extension system are enormous, as the SWF can do most of what a SWF can do on a web page: we can download assets from the Web, play videos, receive user input as text or drawings, and with some bleeding-edge undocumented techniques in Javascript we can even use the SWF as a "pattern factory" to generate bump maps, opacity maps or colors for other objects in the scene. WoW inside a PDF? Not quite yet, but very close!
