In 1972 Ed Catmull (founder of Pixar) and his colleagues created the world's first 3D rendered movie, an animated version of Ed's left hand. This is the film that they produced. It includes some "making of" footage (around 1:30) and some other early experiments
Who am I kidding? This guy is a genius!
https://vimeo.com/16292363
don't miss that video.
even the blinking was slow and unrealistic.