This video created a lot of buzz lately, but after researching a bit I came to conclusion that it's not fake. In 1972 Ed Catmull (founder of Pixar) and his workfellows produced the world's first 3-D rendered animation (demo real of cutting-edge computer animation), an recreated digital version of Ed's left hand. You are able to see some "making of" footage (around 1:30) and another early on tries out.
The first Pixar animation
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