Andrew J. Hanson is a person who is very smart and knows a lot about things called computer graphics. You know when you watch a movie or play a video game and it looks really cool and realistic? That's because of computer graphics! Andrew J. Hanson helped make these things look even cooler and more realistic.
He figured out how to use math and computers to make pictures that look like they're popping out of the screen, like they're moving around, and even like they're filling up space.
So whenever you watch your favorite movies or play your favorite video games, you can remember that Andrew J. Hanson helped make them look so amazing!