These displays drone light displays are incredible. Ive never seen one "live", just vids. But the coordination is amazing. Obviously computer controlled.
I have a Mavic drone, and I can say the stability of these drones is freaking incredible, as well as the instrumentation and photo and video quality. They use GPS and optics to maintain position and its steady as a rock. They display what in aircraft you would call a Attitude Indicator. High, gusty winds will show the drone rocking and rolling around in the wind. But the position is solid (as are the photos).
The reason I mention all that is they can hold a very precise position. Combine that with a computer figuring out all the 3D positions required, and you can do this. Its pretty cool.
Check this out:
https://en.hg-fly.com/cases/