  As Virtual Reality becomes commonplace in the world, it is important for
developers to focus on user interaction with the virtual world. Currently,
there are limitations to some selection and navigation techniques that have not
yet been completely overcome. Focusing specifically on enhancing ray-casting,
we present the advanced technique of folding rays which allows for the
selection of occluded targets without any unnecessary physical navigation
around a virtual environment. By improving upon current approaches, our
technique allows for the selection of these targets without any manipulation of
the virtual environment itself using rays that can bend at user-determined
points. With their potential to be used in conjunction with teleportation as a
virtual navigation technique, folding rays can be used in a variety of
scenarios to enhance a user's interactive experience in virtual environments.
