Raspberry Pi 3 Interactive Led Strip Wall

At the moment we're working on an interactive led screen wall for the entrance hall of our new studio. I've setup the following frame (http://i66.tinypic.com/33ll30j.jpg)  with 17meters of WS2812B addressable led strips.We're using the Neopixel library for rasp (https://github.com/jgarff/rpi_ws281x) and it works like a charm with the rasp 3. Anyway they next step is to control these ledstrips so they work as one big display. I had a look on the internet and a lot of people advices to work with the FadeCandy from Adafruits but I want to know if there are other solutions using only Python and write software to control the ledstrips. The purpose is to use the rasp's camera module like this guy did http://andydoro.com/ledmirror/images/stills/ledmirror01.jpg so when someone is entering the room, his reflection appears on the wall...

Any information / tips / other solutions about how to achieve what I described above are welcome.


Adafruit has this tutorial using a controller https://learn.adafruit.com/adafruit-diy-led-video-... They have other video display/OLED/TFT smaller LED matrix projects so maybe you can glean the display manipulation techniques/mapping an image from them. I think the Fadecandy is used to smooth out colors and dithering but for your basic Jumbotron image you should be able to come up with something. Since the neopixels are individually addressable, depending on how you wired them up, they will need to be in some organized matrix. Things will get messy in coding if you can't map it array style. Good luck.