Complex VEs on All-In-One VR Headsets Through Continuous From-Segment Visibility Computation

All-in-one VR headsets have limited rendering power which limits the complexity of the virtual environments (VEs) that can be used in VR applications. This paper describes a novel visibility algorithm for making complex VEs tractable on all-in-one VR headsets. Given a view segment, the algorithm finds the set of triangles visible as a camera translates on the view segment. When run on the perimeter of a user view region, the algorithm provides a quality approximation of the visible set from inside the view region. The visibility algorithm supports static and dynamic VEs, and it solves visibility with either triangle, particle, or object granularity. The visible sets yield output frames that are virtually indistinguishable from ground truth frames rendered from the original VEs.