Pixar forever changed animation in 1995 with "Toy Story," the first full-length computer-animated movie. With "Toy Story 4," it's proving that it's far from done changing the game. Between 1995 ...

Instead of animating each hair one by one, Pixar computer ... and video games, had been mapped with polygons. That made some characters come out looking patchy, like Andy in "Toy Story," whose ...