John D. Carmack II is an American computer programmer and video game developer. He co-founded the video game company id Software and was the lead programmer of its 1990s games Commander Keen, Wolfenstein 3D, Doom, Quake, and their sequels. Carmack made innovations in 3D computer graphics, such as his Carmack's Reverse algorithm for shadow volumes.
Carmack at the 2017 Game Developers Choice Awards
Carmack giving a speech after receiving the Lifetime Achievement Award during the 10th annual Game Developers Choice Awards ceremony on March 11, 2010
Carmack speaking about "The Dawn of Mobile VR" during the Game Developers Conference 2015
Carmack during the 2005 X PRIZE Cup in Las Cruces and Alamogordo, New Mexico
id Software LLC is an American video game developer based in Richardson, Texas. It was founded on February 1, 1991, by four members of the computer company Softdisk: programmers John Carmack and John Romero, game designer Tom Hall, and artist Adrian Carmack.
Co-founder John Carmack at the 2010 GDC