Marc Hannah is an electrical engineer; however, he made significant contributions to the computer graphics world.
He co founded Silicon Graphics (SGI) with 6 other people, and turned it into a multibillion dollar computer hardware and software company. He was the company's principal scientist in 1986 for computer programming. Arguably, his most important project was creating computer programs like Indigo and Indy Graphics through the company, that were then used in movies for 3-D special effects. Movies that these programs were incorporated into include Terminator 2, Beauty and the Beast (1991), and Jurassic Park 3D. Outside of movies, the programs he created are also used today when designing cars, airplanes, in biotech engineering labs, when creating designer drugs, in the military, and in the process of researching gene sequences. He made the whole 3-D graphics industry much cheaper as well, lowering prices from $30,000-800,000 to $5,000-10,000.