Hi,
Some time ago we've made some tests using SLI on Linux and indeed
observed some performance improvement. It was, however, not possible
with ordinary 3D models. I had to create a model which has lots of
geometry and very thin hierarchy.
I have the results below. The 3D model I used consists of 40
cessna.osg's with display lists enabled.
FSAA MODE 5
SLI MODE | FPS
-----------------------
OFF | 146
|
SFR | 249
|
AFR | 289
|
SLIAA | 145
I guess, unless the application is fill or geometry limited SLI wouldn't
bring anything. Now that OSG can do parallel cull and draw maybe for
some of us the bottleneck moves towards Graphics Card and SLI might
bring some improvement.
tugkan
Hi Mathieu,
I tried it, and was severely disappointed. I didn't notice any noticeable
increase in frame rate either.
Zach
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mathieu MARACHE
Sent: Monday, March 05, 2007 08:17
To: osg users
Subject: [osg-users] SLI
Hi all,
I've looked throughout the mail archive for a explicit use of SLI (2 cards
for one output) and didn't find any, the only use found is 2 cards 2
outputs.
I did some testing under Windows and Linux and neither tests did have any
noticeable acceleration using any of the SLI modes (AFR or SFR)
Did anybody tried to use OSG in SLI mode and thus was able to have
noticeable acceleration or is this a 'feature' and OSG can't by design use
SLI configurations ?
--
Mathieu
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
--
Tugkan Calapoglu
-------------------------------------
VIRES Simulationstechnologie GmbH
Oberaustrasse 34
83026 Rosenheim
Germany
phone +49.8031.463640
fax +49.8031.463645
email [EMAIL PROTECTED]
internet www.vires.com
-------------------------------------
Sitz der Gesellschaft: Rosenheim
Handelsregister Traunstein HRB 10410
Geschaeftsfuehrer: Marius Dupuis
Wunibald Karl
-------------------------------------
_______________________________________________
osg-users mailing list
[email protected]
http://openscenegraph.net/mailman/listinfo/osg-users
http://www.openscenegraph.org/
