91-11/Sega.info I called Sega USA tonite (1-800-USA-SEGA) and the guy I asked said that they would sell the 3D glasses by themselves, over the phone with a credit card or thru the mail by check. 34.95 3D glasses +2.80 postage & handling ATTN: Parts and Orders Dept. Sega America 3375 Arden Rd. Hayward, CA 94545 === I'm fortunate enough to have access to both, so I guess I'd better answer. Sega glasses contain two LCD shutters, one over each eye. One shutter is open at a time. By synchronising the shutters with two stereoscopic images on a screen, it is possible to give a good 3D effect. The Sega glasses are not *very* good -- the shutters are not completely opaque when they are shut. However, they are cheap, since they were designed for the Sega home entertainment system (similar to a Nintendo system). I have the glasses connected to a PC with a VGA screen (via the serial port, since the glasses need +/- 12V). I have generated several 3D images using PD raytracers (DBW_Render & DKB_Trace) -- each image is 320*400*256 colours. === If you are really interested in 3D, build yourself the Sega glasses interface and try the demo software (it's really easy to write your own software based on the demo sources). The sega glasses can be connected to almost any RS-232 or RS-422 serial port. The files are mainly for Macintosh use. To get the instructions and demo software: ftp sumex-aim.stanford.edu I think the files are in the C source code directory. or: ftp milton.u.washington.edu cd public/virtual-worlds/cheap-vr Chech out the SEGA files.