Simulation and Evaluation of Three-User Redirected Walking Algorithm in Shared Physical Spaces

Shifting from single-person experiences to multi-user interactions is an inevitable trend of virtual reality technology. Existing methods primarily address the problem of one- or two-user redirected walking and do not respond to additional challenges related to potential collisions among three or more users who are moving both virtually and physically. To apply redirected walking to multiple users who are immersed in virtual reality experiences, we present a novel algorithm of three-user redirected walking in shared physical spaces. In addition, we present the steps to apply three-user redirected walking to multiplayer VR scene, where the users are divided into different groups based on the users' motion states. Therefore, this strategy can be applied to each group to address the challenges of redirected walking when there are more than three users. The results show that sharing a space using our three-user redirected walking algorithm is completely feasible.