[Tom Gerhardt] has made this very interesting mud interface for a computer. Follow the link to see a video of it in action. It appears as though he’s using a laser grid of some kind to establish elevation. We might be way off on that though, there aren’t any details on the construction. He does mention that it is an open source hardware and software project, so maybe the details are available on request. In the video you can see it running as a projection surface where people are interacting with items directly on the mud. You can also see it being used as an external input device. People play Tetris using 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. Despite the sparse grid, [Tom] says he gets good resolution by interpolating between sensors; it can detect a resting hand pivoting on the surface.
For those of you who don’t recall, the Wiremap is a 3d volumetric display built from hundreds of tiny strands. An image is projected onto the strands to achieve 3d effects. [phedhex] has posted an in depth instructable on how to build a wiremap. He covers the construction with lots of good tips as well as giving links to the software for Windows, Mac, and Linux. Check out the video after te break to see some fairly impressive 3d patterns.
ArtFall allows you to draw on a whiteboard, then have small geometric shapes interact with your drawing like a barrier. Imagine a pachinko machine where you have to draw the pegs in. Not only can you draw barriers, but you can change the direction of gravity with either an iPhone or a Wiimote. The footage also shows some sound interaction as the pieces seem to bounce with the bass from some music. The effect is quite nice and somewhat reminiscent of the whiteboard pong we saw recently.
It seems like there is a pre requisite that any technology demo should include pong. It may not be new tech, but we’ve never seen pong played like this. It seems like it could get pretty hectic if it were to be sped up.
Want to get a bigger tv but can’t afford it? If you Have a rear projection TV, why not just get a bigger screen? That’s exactly what was done here. They dismantled the old TV, mounted it and enclosed it theater style, with curtains. They then mounted a new screen in front of it and voala, bigger TV. He doesn’t talk about how much brightness was lost, but there had to be some. The final picture looks great.
Bubbloo is an interactive display at the Denver Art Museum. They appear to be embracing a more interactive approach to displaying some of their art and information. One of their displays, shown above, features a pair of projection systems working together to make a game. As you pop the bubbles, the artwork is displayed. You can see it definitely helps keep the kids amused.
While the technology used isn’texactlynew, its a good example of how effective interactive displays can be. Even if they are just there to distract the kids so the parents can look at art.
The floor projection systems don’t seem as though they would be that difficult to make. We’ve seen interactive projection displays using Wiimotes made in peoples homes, but what about one of these? How would you handle the input without an accessory like a light pen or reflective tape? The Wisdom Well uses Frustrated Total Internal Reflection and rear projection. Reactrix, a manufacturer of these systems uses infrared sensors as well as some kind of floor sensor. [Lawrence Lau] has made one, but didn’t post any information. If you make one and let us know.