- Interesting video demonstrating a 3D interactive system, whereby presenters can move light objects around a table, from table to screen, or person-to-person utilising infrared sensors Aka an interactive surface. I think we may have borrowed some ideas from external folk, because I have seen something similar using a reverse engineered Wii remote and a wearable interactive projection system. Cool tech though. Look’s like you need a steady hand to not drop the ball