[Tom Gerhardt] has made this extremely fascinating mud interface for a computer. comply with the link to see a video of it in action. It appears as though he’s utilizing a laser grid of some kind to establish elevation. We may be method off on that though, there aren’t any type of details on the construction. He does mention that it is an open source hardware as well as software application project, so perhaps the details are offered on request. In the video you can see it running as a projection surface where people are interacting with products directly on the mud. You can likewise see it being utilized as an outside input device. people play Tetris utilizing it in that example.
UPDATE: [Moon] reports from the ITP show that the tub has a 16×12 grid of generic pressurs sensors on the bottom. These feed into a MacBook pro which is projecting on the surface. in spite of the sparse grid, [Tom] states he gets great resolution by interpolating between sensors; it can spot a resting hand pivoting on the surface.