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.

翻译：随着虚拟现实在日常生活中的普及，开发者关注用户与虚拟世界的交互变得至关重要。目前，部分选择与导航技术仍存在尚未完全克服的限制。我们专注于改进射线投射技术，提出了一种先进的折叠射线技术，该技术允许在无需额外物理导航虚拟环境的情况下选择被遮挡的目标。通过改进现有方法，该技术利用可在用户指定点弯曲的射线，无需操作虚拟环境本身即可选择这些目标。凭借其与虚拟导航技术（如瞬移）结合使用的潜力，折叠射线可在多种场景中应用，以增强用户在虚拟环境中的交互体验。