Oliver Kreylos, PhD

Dr. Oliver Kreylos is a researcher with the W.M. Keck Center for Active Visualization in the Earth Sciences (KeckCAVES), in the UC Davis Department of Earth & Planetary Sciences. Oliver has been working in virtual reality since 1998, and is the primary developer of the open-source KeckCAVES VR and visualization software stack. In his copious free time, he tinkers with new VR hardware, roams the Internet as “Doc Ok,” blogs at, and tweets and uploads YouTube videos as “okreylos.”