Re: Multiple windows on Linux

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Thomas Ruge (Thomas.Ruge++at++gmx.de)
Fri, 31 Dec 1999 00:33:05 +0100

georgewilliams wrote:

> Would it be possible to implement several Performer-Linux powered PCs in
> a loosely coupled
> configuration, using a fast network between machines? How would you
> synchronize the simulations
> across the machines? Is it possible to sync video cards ( like you
> would have to do with several
> IR pipes.)
>
> > Hello Frank,
> >
> > i am using a xig Multihead and OpenGL capable X-Server from xig. i am
> > using 3 old permedia cards with 3 CRT- projectors with a 180 degree
> > projection wall. As far as i know Performer 2.3 for Linux is not
> > multihead capable, but anyhow it should be possible to give to a
> > Performer window another Display #. I didn't try it now ( i am in
> > holidays ... ) , but i will try when i am back in the Lab.
> >
> > Thomas
> >
> > --
> > -------------------------------------------------------------------------
> > Thomas Ruge, Siemens Virtual Reality Center
> > private email: Thomas.Ruge++at++gmx.de
> >
> >
>
> -----------------------------------------------------------------------
> List Archives, FAQ, FTP: http://www.sgi.com/software/performer/
> Submissions: info-performer++at++sgi.com
> Admin. requests: info-performer-request++at++sgi.com

Hello Frank,

we are on the way to combine 2 PC's to get a solution for a passive stereo
presentation. The idea is to couple two PC`s over a 100 Mbit TCP/IP
connection, one PC is rendering the left eye view, the other PC does the same
for the right eye. 2 projectors with perpenticular oriented polarization
filters put the images on one projection wall. I think the biggest problem is
to get a good synchronization, so that the images of both eyes will be
rendered at the same time. But may be in such a scenario, where the output of
the images may not synchronized with active stereo glasses it works wihtout
genlocking. We will try to get some sort of framelocking by defining one PC as
a Master, which steers the other PC by rendering the others eye view. I think
one crucial thing is that both PC's should be quite similar to get a
calculatable latency time between PC #1 and #2.
To everybody: Any ideas or input about such an scenario ?

    Thomas

--
-------------------------------------------------------------------------
Thomas Ruge, Siemens Virtual Reality Center
private email: Thomas.Ruge++at++gmx.de










georgewilliams wrote:

Would it be possible to implement several Performer-Linux
powered PCs in

a loosely coupled

configuration, using a fast network between machines?  How would
you

synchronize the simulations

across the machines?  Is it possible to sync video cards ( like
you

would have to do with several

IR pipes.)

> Hello Frank,

>

> i am using a xig Multihead and OpenGL capable X-Server from xig.
i am

> using 3 old permedia cards with 3 CRT- projectors with a 180 degree

> projection wall. As far as i know Performer 2.3 for Linux is not

> multihead capable, but anyhow it should be possible to give to a

> Performer window another Display #. I didn't try it now ( i am in

> holidays ... ) , but i will try when i am back in the Lab.

>

>     Thomas

>

> --

> -------------------------------------------------------------------------

> Thomas Ruge, Siemens Virtual Reality Center

> private email: Thomas.Ruge++at++gmx.de

>

>

-----------------------------------------------------------------------

List Archives, FAQ, FTP:  http://www.sgi.com/software/performer/

           
Submissions:  info-performer++at++sgi.com

        Admin. requests:  info-performer-request++at++sgi.com

Hello Frank,

we are on the way to combine 2 PC's to get a solution for a passive
stereo presentation. The idea is to couple two PC`s over a 100 Mbit TCP/IP
connection, one PC is rendering the left eye view, the other PC does the
same for the right eye. 2 projectors with perpenticular oriented polarization
filters put the images on one projection wall. I think the biggest problem
is to get a good synchronization, so that the images of both eyes will
be rendered at the same time. But may be in such a scenario, where the
output of the images may not synchronized with active stereo glasses it
works wihtout genlocking. We will try to get some sort of framelocking
by defining one PC as a Master, which steers the other PC by rendering
the others eye view. I think one crucial thing is that both PC's should
be quite similar to get a calculatable latency time between PC #1 and #2.

To everybody: Any ideas or input about such an scenario ?

    Thomas

-- 
-------------------------------------------------------------------------
Thomas Ruge, Siemens Virtual Reality Center
private email: Thomas.Ruge++at++gmx.de

 

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