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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