It's not bad. I have it on an Indy, which is where I played it originally (wasting time at the Salk Institute as an undergrad -- we used the SGIs for visualization of X-ray crystallography). There is also a decent SGI port of Quake.
When I worked at NASA they had a copy of Cave Quake. It could run on SGI Onyx2 (16 processor full rack with 4 graphics outputs.) The graphics outputs hit fiber converters that fed the video downstairs to 4 fiber receivers, then into 4 Electrohome CRT projectors. Left front and right walls were rear projected, 4th projector was overhead hitting bounce mirror then floor. It was running 120hz I believe, 60hz per eye with IR xmitters for crystal eyes LCD shutter glasses. The CRT projectors were special with fast phosphor CRTs.
There was some sorta spatial tracked controller as well -- it was tethered by cable as I recall. It was kind of neat but the game showed weakness since you could look to the right and see the monsters walking towards you but caught on the edge of the wall -- had to advance a bit then they would come for you. I remember it was strange seeing the medical kit clipping through my leg.
-- Ethan O'Toole
