Mercury won Revision 2014 64kb intro competition with this one, and rightfully so. I’ve seen them working on it at the party, however I just learned that they actually hardcoded the entire geometry and stuff by hand. Without any further visual assisting tool (okay, that’s sort of the way you do it most of the time with 4kb productions but those are way more random/abstract). Directly into the GLSL shader. For the sake of getting the performance. Sick shit. Furthermore, the music synth has also been fit for their productions. I’m seriously impressed.
If you’d rather watch the 64k in realtime (which you should), grab it from Pouet.