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3D glasses for an SGI


[Mark Hoekstra] is a true SGI enthusiast, and he proves it with these 3D glasses for an SGI. Taking advantage of the SGI’s stereo viewport, [Hoekstra] created a controller for a pair of CrystalEyes glasses that would allow them to be used with the SGI.

[Hoekstra] used the schematic from [M.C.D. Roos]‘s similar project, which used old Asus 3D VR glasses. This project can theoretically be done with any LCD-shutter glasses, the only important thing to know is the maximum shutter voltage the glasses will take. [Hoekstra] felt his way through building the board by common sense alone and somehow managed to avoid any shorts. The board only makes three connections to the glasses: an out to the left lens, one to the right, and a ground wire. After building the controller board out of an LM324 chip and a customized segment of perf board, he learned that he needed a monitor capable of displaying a relatively high bit depth at 100Hz, or 50Hz per eye. He tested the glasses with a game called Hacknoid after making a few last minute changes on the board (forgot the ground fuse), and he was soon making himself dizzy with his functioning 3D glasses.

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