Hi Everyone,
I have done some OSG testing with Vista 64 bit + 2 x GeForce 8800 GTS 320 MB +
3 monitors. I have attached only 3 monitors but I am sure 4 would work either.
Unfortunately results are mixed. I was able to start osgviewer and our demo app
on 3 monitors. I was able to get some visual but after few frames driver was
dying and after few moments Vista popped up with msgbox that graphics driver
failed but now it is ok (or something like this). I may not have the power
supply decent enough to provide the stable current so this crash could be power
related. I will try to arrange some heavy duty power supply and redo the tests
again later this week. Anyway it looks like at this stage results are more
promising than with XP and two different GeForces.
Cheers,
Wojtek
----- Original Message -----
From: Wojciech Lewandowski
To: OpenSceneGraph Users
Sent: Monday, June 30, 2008 10:34 AM
Subject: Re: [osg-users] Rendering to multiple graphics cards
Thanks, Bob.
This is a relief ;-). I don't have the acces to similar Vista setup yet.
Will try to grab two boards and do the checks this week.Will post a meesage
with results when I am done.
Thanks again.
Wojtek
----- Original Message -----
From: Bob Balfour
To: OpenSceneGraph Users
Sent: Sunday, June 29, 2008 2:32 AM
Subject: Re: [osg-users] Rendering to multiple graphics cards
I have two Nvidia 8800 cards on a Windows Vista platform (HP), and setting
traits->screenNum to 0 or 1 as Robert indicated does send the rendering to the
appropriate graphics cards. I used code very similar to the osgcamera example,
multipleWindowMultipleCameras method.
Does anyone have experience setting up a 4-monitor (each 1440x900) system
on Windows Vista? I have 2 osgcameras/contexts rendering left-half/right-half
of the scene. With 2 Nvidia graphics cards both in dual-head mode, if I render
each camera to a viewport 2880x900 I'm hoping that the scene will be spread
properly over the 4 monitors (will try it shortly once I round up four HD
monitors), without configuring the "extending the desktop" option in Windows,
which seems to take considerable resources in the dwm.exe task ("dynamic window
manager"), which appears to have an OSG rendering performance impact. Anyone
have similar experience here, or other configuration suggestions?
Thanks.
Bob.
--------------------------------------------------------------------------------------
Wojciech Lewandowski wrote:
Hi Bob,
Seems like you asked related question to mine. I would be very interested
in your results. I tried to run osgviewer on two graphics boards withour
success. But I was on XP and boards were different. I have not given up
completely, hoping that Vista or identical cards may work. Then I have read
your post and I see that you have exactly such setup. Does osgviewer outputs to
monitors cards attached to both cards ?
Cheers,
Wojtek
Hi Bob,
Using the screenNum set to 0 or 1 should select the appropriate card.
When you run osgviewer on your system it should open up two
windows/two slave cameras automatically, press 'f' to toggle off full
screen to see the actual windows.
Robert.
On Tue, Jun 24, 2008 at 8:56 PM, Bob Balfour <[EMAIL PROTECTED]> wrote:
I also have an HP Windows (Vista) box with 2 Nvidia graphics cards
(independent, not SLI-configured). In order to configure two
osg::cameras,
each one rendering to its own specific Nvidia card, how do you
specify a
camera graphics context for a specific graphics card. Is it simply
specifying the appropriate traits->screenNum, or does it take more
than
that? Has anyone done this in Windows Vista?
Thanks.
Bob.
--
Robert E. Balfour, Ph.D.
Exec. V.P. & CTO, BALFOUR Technologies LLC
960 So. Broadway, Suite 108, Hicksville NY 11801
Phone: (516)513-0030 Fax: (516)513-0027 email: [EMAIL PROTECTED]
"Solutions in four dimensions" with fourDscape(R)
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--
Robert E. Balfour, Ph.D.
Exec. V.P. & CTO, BALFOUR Technologies LLC
960 So. Broadway, Suite 108, Hicksville NY 11801
Phone: (516)513-0030 Fax: (516)513-0027 email: [EMAIL PROTECTED]
"Solutions in four dimensions" with fourDscape®
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