This is quite beautiful. The remarkable thing: This video contains No CGI.
“Cirque du Soleil, ETH Zurich, and Verity Studios have partnered to develop a short film featuring 10 quadcopters in a flying dance performance. The collaboration resulted in a unique, interactive choreography where humans and drones move in sync. Precise computer control allows for a large performance and movement vocabulary of the quadcopters and opens the door to many more applications in the future”.
—from the site.
And here’s a “Making of…” video that’s equally fascinating.