Quartonian was the first mac os x vj mixer to fully use the power of core image tech that Apple introduced in Mac OS X 10.4 (Tiger). To this day Quartonian is still the fastest VJ mixer available for Mac OS X, mixing 720p or even 1080i HD video is possible on a Mac Book Pro. It is also the most flexible and customisable vj mixer available. Because it is written using Quartz Composer and the full composition is available you can rip it apart and build your own fx chains, your own screen layouts or even build a custom mixer to suit a large multiscreen installation or custom shaped screens. Eg see the screen shot below for an example hex layout for hexagonal screen clusters.
It’s fast and easy to adapt Quartonian to any custom screen layout, even multi screen layouts. This is difficult or impossible with most VJ programs.