I'm working on a new paradigm for creating generative content for 3D displays (at the moment with LEDs). I'm also working on real-time, single-angle virtual reconstruction and registration of 3D LED structures using computer vision techniques.
Fadecandy by Micah Scott: https://github.com/scanlime/fadecandy
LX and P3LX by Mark Slee: https://github.com/heronarts/LX
They both provide good starting points to working with LEDs arranged in arbitrary 2D and 3D configurations.
You can also check out the code for 2 different LED art projects I've worked on, both built on top of LX.
Tabula - https://github.com/squaredproject/Tabula LED fins on the side of a building in Palo Alto, visualizing earthquake data. Construction starts later this year
2Squared - https://github.com/squaredproject/2squared 50-ft LED trees created in 2014 for Burning Man and Coachella