This is the first public release of a Syphon enabled application, that takes Resolume Arena’s output and converts it to DMX. This way you can play low resolution video on DMX enabled LED strips, via an Enttec USB Pro dongle.
- Enable Syphon in the video tab of the Arena prefs.
- Enter the Advanced Output of Arena
- Create a new screen and set it to Syphon.
- Rename the display to ‘LED’
This is important and lets Syphon distinguish this output from Arena’s main composition output.
- Change the display width and height to match your LED strips.
In this example I’m using 8 strips of 16 LEDs, combined in two stacks, so the total output is 32×4 pixels. Note that you can still send your output to a projector or other screen as well, just create another screen for it.
- Connect the Enttec dongle.
- Launch the app.
Everything should set itself up automatically and you should see a pixelated version of your output in the app and on your LEDs. Arena takes care of the scaling, by default it takes the entire comp output and scales it down to the LED resolution. By using the Input Selection you could have a 1:1 pixel output as well, or something in between those extremes.
SyphonToLED 0.1, tested on OSX Lion and Mountain Lion, with the Enttec USB Pro dongle.
SyphonToLED 0.2, version 0.2, adds brighness control and gamma correction. Quickly tested on Lion, but not tested in a live environment yet.
This app assumes you’re using RGB LEDs and Resolume Arena. It can be adapted for other sorts of LED and applications, but let’s see if this picks up first.
For the nerds that are interested in this sort of thing: this app was made in openFrameworks 0074. It uses ofxSyphon by the Syphon gang and ofxDmx by Kyle MacDonald.