Tim Willits, id Software's Studio Director, made the following statement to IGN.
"John Carmack, who has become interested in focusing on things other than game development at id, has resigned from the studio. John’s work on id Tech 5 and the technology for the current development work at id is complete, and his departure will not affect any current projects. We are fortunate to have a brilliant group of programmers at id who worked with John and will carry on id’s tradition of making great games with cutting-edge technology. As colleagues of John for many years, we wish him well."
Carmack recently joined Oculus as CTO and will continue there with a continued focus on refining the virtual reality technology.
