René Jodoin, who died last month, was a great pioneer of French language Canadian animation. He was hired by Norman McLaren in 1943 and worked for the National Film Board of Canada (NFB) on and off for decades. He helped to establish the NFB's international reputation as a model organization for aiding creative creation and his own films are experimental and geometric marvels.
Here's a geometric composition, created with algorithms on a computer, that manages to create a near-psychedelic trance state. Give yourself a few hours after watching this before you start driving or operating a crane.
The NFB site
is a bonanza of great short films and you can, and probably should spend hours on it.