A Wacom might be a reasonable option because those tablets can tell when you’re hovering over them. So long as the user can find the pen on their desk, you woul

A Wacom might be a reasonable option because those tablets can tell when you’re hovering over them. So long as the user can find the pen on their desk, you wouldn’t need to track the pen location just from the VR cameras. You could use the tablet data stream directly.