CRUNKATLANTA MAGAZINE
Marc Hannah ( 1956-Present)
What He Invented: 3-D Graphics Technology Used in Films.
Why It’s Important: Anyone awed by the special effects in the films Jurassic Park, Terminator 2 and The Abyss should thank Chicago-native Marc Hannah. The computer scientist is one of the founders, in 1982, of the software firm Silicon Graphics (now SGI), where the specialeffects genius developed 3-D graphics technology that would be used in many Hollywood movies.
source: theroot.com