fearing@qucis.queensu.ca (Paul Fearing) (05/24/91)
Does anyone know how to get a Silicon Graphics machine to
drive two seperate TV screens at once? Ideally, we'd like to
have a different window connected to each screen.
This allows us better resolution than using a single screen
and using mirrors/prisms, etc. to divide it in half.
Are there any "super" genlock boards that are able to
pump out more than one image?
We would be most grateful for any help!
Paul Fearing
fearing@qucis.QueensU.cachrise@cs.washington.edu (ChrisEsposito) (05/29/91)
In article <1991May24.161108.16393@milton.u.washington.edu> fearing@qucis.queensu.ca (Paul Fearing) writes: > Does anyone know how to get a Silicon Graphics machine to >drive two seperate TV screens at once? Ideally, we'd like to >have a different window connected to each screen. >This allows us better resolution than using a single screen >and using mirrors/prisms, etc. to divide it in half. >Are there any "super" genlock boards that are able to >pump out more than one image? If you really mean TV screens rather than hi-res color monitors that normally serve as SGI console displays, then the SGI Video Splitter may do what you want. According to the manual (SGI Document #007-5352-010) this board allows you to split the console screen into up to 4 lower-resolution video outputs that grab their image from windows on the screen. The video outputs are frame synchronous since they share the same video timing and output clock rates. A quick scan through the manual reveals that you have a choice as to what the pixel clock rate will be, output format (VGA, RS170A, 625), whether to genlock all outputs to the genlock input source, and a few other things. I haven't had much of a chance to play with one yet, so I have little real experience to pass on. I believe the board is fairly expensive ($15-20K). I don't know of anything else that can do what it claims to do, but then I'm no video expert. Chris Esposito -- "Anybody want to trade heads?" -- Eric Haines, Ray Tracing News, Vol. 4, No. 1 ------------------------------------------------------------------------------- Chris Esposito | Internet: chrise@atc.boeing.com Boeing Research & Technology, Comp. Sci. | uucp: ...!uw-june!bcsaic!chrise
lmeyer@uunet.UU.NET (lhary meyer) (05/30/91)
You might speak to RGB Technology in Berkeley, CA. I don't really understand from your posting what you are attempting, but they have the most interesting Genlock box for SGI...PS it isn't cheap!!