Lighting Control on Non-Windows Systems?
fgodfrey asks: "Being a computer geek during the day and a theater geek at night, I'm looking to combine the two and turn a non-Windows computer into a theater lighting console. All the products out there that I've seen (such as Martin's 'Light Jockey' and Rosco's 'Horizon') only seem to support Windows. I'm looking for a solution that works on Linux, or preferably, Mac OS X. It also would require a DMX converter (DMX being the standard in dimmer control protocols) that could plug into the computer. I'm looking to be able to run an entire theater show directly from the computer. Has anyone out there tried such a thing? Before anyone suggests X10, it is not really acceptable for theater lighting as it doesn't respond 'instantly' to commands and would require a ton of X10 boxes."
Most of the professional level lighting controllers do not run windows. In fact, I'd wager that PC-based lighting control is in the severe minority.
Most lighting consoles use an embedded OS and proprietary software. Which is okay, because DMX lighting control takes very very little processing power. For those of you who don't know, DMX is the standardized interface/protocol for lighting control, and has been around for quite a while.
That being said, you don't really want something too complicated, as it adds too many points of failure. No matter what the OS you're running, you can't risk a crash/kernel panic before or during a show.
In addition, you don't NEED a sophisticated OS for lighting control. It's not rocket science, and even the weakest of computers can handle it without breaking a sweat.
The console I use probably has less power than an Apple ][. It has no hard drive, and the only moving part is the floppy drive which can be used to move configurations between consoles. Plus, it's completely silent (which is important in this business). Also, inputting commands with a mouse and QWERTY keyboard is absolutely inefficent for lighting control especially if you're mixing on the fly. Having specific buttons and sliders for certain common tasks is a necessity. We also have a submaster board which gives you 120 sliders (one for each light). It is incredibly convienent.
If you've got thousands of lights and don't change your performance often, a PC-based solution is for you. Otherwise, a pre-built, proprietary solution is for you. Open isn't important. You could easily hack together a solution in linux, as DMX is incredibly easy to control... the true cost always lies in the hardware. You'll end up spending more using a PC based solution than a dedicated console.
-- If you try to fail and succeed, which have you done? - Uli's moose