Re: Visual Workstation

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Tom Flynn (thomas.a.flynn++at++boeing.com)
Fri, 08 Jan 1999 13:38:07 -0500

True. You can buy commercial X-Servers for Linux from Xi graphics
(www.xigraphics.com) and MetroLink (www.metrolink.com) and maybe a few
others. Both of which have hardware 3d acceleration from vendors such
as Number Nine, Evans & Sutherland, and Intergraph. Probably wouldn't
be a bad idea if SGI joined that list :).

Angus Dorbie wrote:
>
> There are loads of drivers for HW if you are prepared to pas a couple of
> hundred bucks for an X server which supports GLX & a reasonable set of
> graphics cards.
>
> If you just want to stick with Xfree86 then you have Mesa (OpenGL 1.2),
> no GLX but GLX emulation in MESA, HW acceleration for X on most cards
> and HW OpenGL acceleration for 3Dfx cards via Glide.
>
> Cheers,Angus.
>
> Philippe Poutignat wrote:
> >
> > Yes.
> > But the problem becomes to find appropriate drivers for the graphic card
> > that you want to use.
> > Only 3Dfx gives drivers for Linux at this time I think ...
> >
> > --
> > Philippe Poutignat
> > Thomson Training & Simulation
> > 1 rue du General de Gaulle
> > 95523 Cergy Pontoise
> > FRANCE
> >
> > "Wilson, Mark A" wrote:
> > >
> > > You can always go to Linux RT. It's no R10K but performance looks pretty
> > > reasonable for a PC.
> > >
> > > > -----Original Message-----
> > > > From: Angus Dorbie [SMTP:dorbie++at++sgi.com]
> > > > Sent: Thursday, January 07, 1999 4:06 PM
> > > > To: Alejandro Saez
> > > > Cc: info-performer++at++sgi.com
> > > > Subject: Re: Visual Workstation
> > > >
> > > > Alejandro Saez wrote:
> > > > >
> > > > > Thers is something I've been wondering about, and since I've haven't
> > > > seen the
> > > > > Vega NT wrapper and it is somehow related to this... well here it goes:
> > > > >
> > > > > How does NT handle the real-time aspects of demanding visual
> > > > simulations? I
> > > > > mean I've used NT and Win95 and the OS's scheduling is pretty lame, even
> > > > for
> > > > > productivity applications. Open a file, and there goes
> > > > interactivity...so
> > > > > although this issue has to do with the OS rather than Performer or some
> > > > other
> > > > > API, it still puzzles me how can such an OS do real-time sim. This is
> > > > not a
> > > > > critic, it is a question.
> > > > >
> > > >
> > > > It doesn't. Even Microsofts claims of Real-Time for pending Windows CE
> > > > releases (for embedded systems) are largely greeted with ultra
> > > > skepticism in those markets. It's not really relevant to talk about what
> > > > happens when you read a big file from disk on a single CPU desktop.
> > > >
> > > > The idea will be that you can do some form of 'soft' real-time on
> > > > windows, ie it get's you there most of the time but don't bet your life
> > > > on it. Stuff like interrupt response times and jitter in really fast or
> > > > accurate timing loops will ofcourse blow chunks. Heck there isn't even
> > > > processor lockdown there. The windows cupboard is pretty bare when it
> > > > comes to Real-Time. That might improve but you'll want to look at 3rd
> > > > party tools for NT.
> > > >
> > > > Cheers,Angus.
> > > >
> > > > --
> > > > "Only the mediocre are always at their best." -- Jean Giraudoux
> > > >
> > > > For advanced 3D graphics Performer + OpenGL based examples and tutors:
> > > > http://www.dorbie.com/
> > > > =======================================================================
> > > > List Archives, FAQ, FTP: http://www.sgi.com/software/performer/
> > > > Submissions: info-performer++at++sgi.com
> > > > Admin. requests: info-performer-request++at++sgi.com
> > > =======================================================================
> > > List Archives, FAQ, FTP: http://www.sgi.com/software/performer/
> > > Submissions: info-performer++at++sgi.com
> > > Admin. requests: info-performer-request++at++sgi.com
> > =======================================================================
> > List Archives, FAQ, FTP: http://www.sgi.com/software/performer/
> > Submissions: info-performer++at++sgi.com
> > Admin. requests: info-performer-request++at++sgi.com
>
> --
> "Only the mediocre are always at their best." -- Jean Giraudoux
>
> For advanced 3D graphics Performer + OpenGL based examples and tutors:
> http://www.dorbie.com/
> =======================================================================
> List Archives, FAQ, FTP: http://www.sgi.com/software/performer/
> Submissions: info-performer++at++sgi.com
> Admin. requests: info-performer-request++at++sgi.com

-- 
Tom Flynn

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