Unfortunately, getting that sort of effect at home would cost a pretty penny, but MIT researchers have created a cheaper alternative: a 3D projector made from off-the-shelf parts that doesnt require glasses.

When you see a 3D movie, youre viewing stereoscopic 3D technology, which means that when viewing the film from multiple angles, you still always see the same thing. MITs projector, however, works with multiperspective. This means that if you move around the 3D image being displayed, you see it from different angles, much like you would a hologram. This new system uses two liquid crystal modulators, similar to LCDs in many TV's, that angle the way light comes into and out of the projector.