by Ralph Grabowski, Sr Editor, TenLinks
VANCOUVER, British Columbia (SIGGRAPH) - Pufferfish is an interactive 3D viewer that looks like a fortune teller's crystal ball. It consists of a sphere about 1.5 feet in diameter that sits on a mammoth computer case. Its surface is touch sensitive; projectors inside the sphere project 3D images; infra-red sensors (made by Viecon) are mounted high on walls and sense motion; and you wear Viecon's 3D glasses with small white balls that the sensors track.
You put on the polarizing glasses to see the model in 3D; nothing new there. As you touch the surface, however, you manipulate the 3D model (rotating and zooming it). As you walk around the sphere, the model rotates with you. A larger version is available as an inflatable ball. The multi-user version dispenses with the touch interface; users wear the goggles and walk around the sphere. The system needed two computers (or was it three?) to generate the imagery and control the cameras.