I just looked at the vanilla processing sketch, pretty cool. But in confirms I would have a problem on linux, similar to this one which runs on linux at full screen, but loses some of the effect when full screen. You may be able run it just as well on ruby as vanilla processing. PS: you will need to add back the rotation for your sketch to work.
yeah, it's pretty neat. i'm trying to get it running so i can create a projector visualization for a musician friend; a sound/music reactive kaleidoscope using the minim library .. and eventually have it also respond to midi triggers .. i just have to get past this first heheh
the java-processing code works ok when i comment out the rotation, should be the same for the ruby-processing
i've taken a step back to try and get a simpler sketch converted to ruby-processing ..