Decorative LED cube - GIF

[schuylergrace]

It has been a while since I last watched this video, so I forgot he was using addressable LEDs (WS2812s). There was another video like this one, where they guy was using common cathode (or anode--I forget which) RGB LEDs to do the same thing, but he had to address them by their matrix location, not their order in the chain. I hope he found a good source for bulk LEDs, though, because by my calculations, he has around $3,000 in LEDs, alone, in this project! Here's a link to LEDs like the ones he used:

https://www.sparkfun.com/products/12986