Without changing any of the film’s action, Pixar’s 3-D specialists, or stereographers, returned to each frame of the film and virtually placed a second camera next to the original, creating left-eye and right-eye views of the scene. Then all of the scenes were re-rendered in the computer with this additional perspective.
The process of taking the original files from the first two movies and getting them to a place where they could be enhanced was one that Mr. Lasseter called “digital archaeology.” “We had to have some very, very smart people at Pixar go back in and write some software and figure out a way to make it so that those files would render on our current computers,” he said.
We will be going to see it tomorrow, and if Donald isn't misbehaving, I'll take him along. I wonder if I will have to pay full fare for him since he can sit on my lap?