As we strive for more immersive, cohesive shows, DMX is a great tool to have in our visualist kit. Whether a full theatre lighting rig or just a couple of dimmers and a strobe in a club, the ability to plug in and take control of an existing rig means that lighting can now work with your projections, not compete with them.

One very exciting piece of gear brought to Perth last year by artificialeyes was the uDMX USB DMX controller. The uDMX is exciting in a different way to gear such as the VJX16-4 or the VMS, rather than being a new and more VJ-friendly take on existing tech, it very common concept - the DMX controller - distilled down to its tiniest, purest form, and then open-sourced for good measure.

The Anyma guys have managed to fit all of the DMX control circuitry inside a regular XLR jack. This makes the uDMX about as compact as it’s possible for a DMX controller to be. As DMX uses regular 3- or 5-pin XLR jacks for cabling, you can literally grab the uDMX, some spare mic cable, an adapter or two, and then get your DMX on straight away! The uDMX-Midi Interface Software (Mac) is extremely simple, monitoring a MIDI input source and converting (scaling from 0-255 to 0-127) either Note-on or CC messages into DMX messages. These are sent through the uDMX on the same DMX channel as the MIDI message controller or note number. It also has the ability to offset messages, which gives a simple method of scanning around DMX channels to find out where lights and other gear are located without following cables or looking at jumpers. Anyma have also released a Max/MSP external (Mac, Linux and Windows), PD external, and a command line utility (Windows, Mac and Linux).

Lighting designers rely on DMX in a similar way that electronic musicians use MIDI; it’s the glue which binds their performance together. Many older (as in age, not experience) VJs I meet have come to live video performance through a profession in lighting. Younger visualists tend to have been attracted to the artform through work or study in film and TV, or a love of electronic music and culture. These people (like myself) may know that DMX exists, but have no real experience with the protocol, or the gear it controls.

So when artificialeyes demoed the VMS system for Peter and I at ByteMeFest in Perth last year, I was struck by how simple this step into the lighting world could be. Todd and Michael were using off-the-shelf VMS projection units and controlling them with a clever little open source USB DMX controller called the uDMX, which includes software to translate midi messages into DMX.

So when it came time to plan for the 2008 album launch tour with Bobby Flynn, my desire to expand the impact of our show (while keeping to an extremely restrictive budget and baggage allowance) put a moving video system right on top of my list of possibilities. In the end we didn’t have the cash to invest in VMS, but taking Peter’s previously tried route of mating an inexpensive Rosco iCue robotic mirror with the projectors we already had in our rig was a simple backup plan. For around AU$1000 each (around $600 in the US), plus a trip to the hardware store, we now have two functional (if currently rather ugly) DMX controllable video moving systems.