Virtual or Augmented Reality Aided 3D Visualization and Marking System

This invention describes a system for drawing or marking on 3D virtual objects. You use a physical stylus on a real-world surface, and a virtual or augmented reality display shows a 3D object and a virtual drawing plane corresponding to your physical surface. The system tracks the stylus's movement on the physical surface, projecting its actions onto the virtual 3D object, specifically using trackers on the stylus and surface.