Video Projector Effect, Advanced

This version handles arbitrary rotations, field of view / focal length, and uses correct math; the previous example faked it somewhat, doing everything basically with 2D math (but why admit to that? :). I found it twice as difficult getting to this point compared to the version posted a few days ago. It turns out that when you want to rotate more than 90 degrees around the x-axis, it’s good to make friends with quaternions, if only superficially.
And it’s interactive this time. By the way, is it not a royal pain to design an interface to control more than two axes in Flash for the web?
There’s still a lot that could be done right / better with this: backface culling (already tried and failed); frustrum culling; per-triangle alpha based on distance and angle to simulate light intensity; per-triangle focus/blur based on distance, maybe (but probably not); a more straightforward way to implement video; shadows… Basically, anything short of building a renderer-inside-a-renderer.
Bonus points for identifying the band to whom the set list pictured in the third image belongs.
Sorry, still no source.

Nice demo. btw, what physics engine are you using for the blocks?
JiglibFlash.
Any plans for releasing the code ?
Lee, Very Interesting Effect!
… we need sources for experiments :)
very cool indeed!