Yep, it's Whorld, and it's a real thing. The original software is a Windows app, but a feature-limited version of the code was ported to FFGL by my friend Dewb, so he could use it with Res on OSX.
We use an internal build of it at shows all the time, and it works a charm. You can see it in action here, running in Res: https://vimeo.com/82147880
It never really got to the point of a proper public release - the current version is only for OSX. Windows support was planned but never completed.
You can check out the source on the GitHub repo:
I have the .bundle file as well - I'll ask Dewb if it's OK to post it here.