Some studies produced in quartz composer for one dot zero (last year), a fabulous group then doing visuals for Kasabian's world tour. They are really interested in real-time visuals and we tested out some midi control techniques, using a behringer bcf2000, to produce spirograph like harmonographic visuals. The qtz source files can be found at daisyrust.com. Not optimal, but I loved the patterns. Infinitely customisable.

Tools Quartz Composer 3.1
No plugins.
Some lovely music, not my own.