Here is the 24 x 24 matrix I’ve been working on since the beginning of the year. Most of the patterns are pretty basic (except for the ones I’ve gotten from the generous people here 
) but I’m learning. The FastLED library made the entire process MUCH easier!
This project certainly doesn’t compare to some of the other amazing projects that have been posted, but everyone has to start somewhere. By the way, almost all of the patterns (actually, all but one, I think) are computed on-the-fly.
Given that I just started learning C++ late last year, and I’ve never done any kind of graphic or image programming (plus the fact that I’m math challenged 
), I feel I’m making reasonable progress. The good news is that I now have a great platform for new patterns as I learn more.
The video starts with a front and back view, and then shows a selection of some of the patterns. It’s dark by choice because if I had it brighter, the colors were getting washed-out.
The colors are regularly shuffled (typically before every pattern starts) to add variety. The patterns are also shuffled, but such that each one plays once (but only once) in a random order and then they are shuffled again. The transitions are also randomized in the same manner as the patterns.
I’ll post some sample code later this evening when I have more time.
http://youtu.be/arQ7V8jQeos
