I was fortunate to work on that piece of animation too. It was very fun cause i have change to participate on the creation process of it. The look of the "light path" was developed and animated by me. The Camera and the "Growing Tree" too.
The overall design was made with my friend Chico Jofilsan (vimeo.com/user1701592), and i've workd with Renato Ferro, Victor Hugo, Kleber Bertoldo.
I've worked on part of the composition job too.