> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Curtis L. Olson > Sent: Friday, January 21, 2005 11:54 AM > To: FlightGear user discussions > Subject: Re: [Flightgear-users] Let me try again... > {Multihead computer} > > > Bill Galbraith wrote: > > >>In that case it makes sense to have a single master copy of > >>FG running > >>on a single computer and driving all your cockpit displays. > >>2d cockpits > >>are probably the most appropriate (and easiest) for this sort of > >>application. I would suggest that you create a big giant > window that > >>covers all your cockpit displays. Then design a big giant > 2d cockpit > >>that matches the size of your big giant window. Your > >>cockpit will then > >>span your displays. Then it's a simple matter of arranging > >>your gauges > >>so that the right things go in the right place and show up on > >>the right > >>display. > >> > >> > > > > > >That is a GREAT idea, but it didn't work when I tried it. I have two > >video cards in one computer, and have told Windows to use > both for my > >desktop. Other applications allow me to expand across the > two screens, > >but not FlightGear. FG starting up in full-screen mode also didn't > >work. Am I missing something here? > > > > > > Ahh, ok, part of the problem with this discussion (and > supporting any of > this in code) is the great variety of possible configurations. > > I had assumed you were using a single multi-headed card rather than > multiple cards in a single machine. > > I'm am pretty sure that you cannot have an "opengl" application span > multiple video cards. There are a lot of internal issues > that make this > a potentially *very* difficult problem. If you want to have a single > opengl window span multiple displays, you really need a single > multiheaded video card. (The nitpickers among us should know > that I'm > specifically ignoring things like SLI here.) :-) > > If you are running multiple video cards in your machine, you > really need > to run multiple copies of flight gear where each one sit's on > it's own > display. However, even with that, some systems (all systems?) only > allow you to do accelerated opengl on the first video card. > > If you were buying hardware from scratch, I'd suggest a multi-headed > video card for all your cockpit displays. > (And I'd suggest buying from a vendor with a good return > policy becuase > I haven't actually tried any of this myself!) :-) >
Okay, well, that's the information that I needed. If I go ahead with this project, it would probably be a Matrox 4 headed card, and Matrox does support OpenGL. It's a $700 card, so it's not like I'm going to spring for that myself. Thanks for the GREAT information, Bill _______________________________________________ Flightgear-users mailing list [email protected] http://mail.flightgear.org/mailman/listinfo/flightgear-users 2f585eeea02e2c79d7b1d8c4963bae2d
