Virtual reality
Around the same time, Douglas Engelbart used computer screens both as input and output devices. In 1968, Ivan Sutherland, with the help of many students including Bob Sproull, created what was widely considered to be the first head-mounted display (HMD) system for use in immersive simulation applications. It was primitive both in terms of user interface and realism, and the HMD to be worn by the user was so heavy that it had to be suspended from the ceiling. The graphics comprising the virtual environment were simple wire-frame model rooms. The formidable appearance of the device inspired its name, The Sword of Damocles.
Joel Breton
Joel Breton (born 1971) is an American video game producer, video game designer, film producer and entrepreneur. He has worked as a producer on multiple award-winning video games, including Unreal PC, Bomberman Live, and Pirates of the Caribbean. In 2016, Breton became the head of virtual reality content for HTC Vive, where he manages both internal and external content development for the HTC Vive virtual reality platform.. In October 2018, Breton premiered the world's first feature length VR film, "7 Miracles", at the Raindance Film Festival, where it won the VR Film of the Festival award.