Abstract
Usability has become one of the key ingredients in making virtual reality (VR) systems work, and a big part of a usable VR system is in the design of effective interface/interaction schemes. We investigate in the usability of various menu presentation and multimodal selection schemes in immersive virtual environments. We have identified 5 major menu display and 13 possible menu selection methods; among them we have finished the usability testing for the first two (tracking/button and gesture/gesture) interaction methods (across the 5 display methods).