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)
_______________________________________________
