This paper presents PointShopVR, an immersive point cloud authoring system in Virtual Reality (VR) that enables intuitive creation, manipulation, and refinement of large 3D point clouds. To support real-time interaction with dense data, our system integrates a simple acceleration data structure and a continuous level-of-detail (CLOD) rendering, ensuring high frame rates in VR. PointShopVR provides a handful of authoring operations—including point addition, deletion, labeling, copy-paste, translation and deformation—each offering instant visual feedback for seamless editing. We evaluate PointShopVR through a user study in which users complete diverse editing tasks within minutes, demonstrating both the usability and effectiveness of immersive point cloud authoring. Compared to traditional desktop-based tools, PointShopVR offers enhanced accessibility, natural interaction, and immersive feedback, making it a powerful platform for large-scale 3D data exploration and creative editing in VR.

Teaching heterogeneous robotic cells is difficult and time-consuming. We present a context-aware robot teaching solution based on an open-source framework that decouples the task instruction from the task execution to simplify the teaching workflow significantly. To demonstrate the advantages of the solution, a human operator uses a VR headset and controllers to teach a virtual robot to perform a task, e.g., pick-and-place in a virtual world. The task is automatically adapted to different settings of operation cells and executed by physical robots located at different geographical locations.