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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