Hi Shayne We too have had some problems with the terrain, but at the moment it seams to work fine. I have rearly seen any problems with osgviewer but in my actual application i have had studders etc.
What sort of hardware are you using, I have a 40 gig 12 level database that renders perfectly on xp. But it seams that the threading scheme chosen on osgviewer makes a big difference on the timings that can be visualized in osgviewer as well. Cull pr. camera draw pr. context seams to work the best, but I guess that depends on the actual setup. At the moment we are not adding altitude data to the terrain, this has made a significant difference previously. Switching from a dual core to a quad core seamed to make a difference as well, on the dual core we were able to load both cores to 100% this does not happen on the quad? Hope some of this helps. Brgs. Ralf Stokholm Arenalogic 2008/8/14 Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC < [EMAIL PROTECTED]> > I would like to get some feedback from users that might be rendering OSG > terrain built with osgdem on Windows XP. Based on previous discussions, I > understand that the terrain rendering on Windows does not have as good of > performance as on Linux, however, I'm seeing abysmal frame rates when I'm > rendering terrain on Windows. The paging performance is horrible. Perhaps > it's the way I'm constructing my terrain or the setup in my OSG app…I'm not > sure. > > > > While I don't understand the algorithm that is being used for OSG terrain, > I would expect it to perform as good or somewhat close to other Windows > based earth viewers such as NASA's WorldWind which seems to run just fine on > Windows with large databases. > > > > For the record, here's the osgdem command I'm using to build the terrain… > > > > osgdem –TERRAIN –PagedLOD –geocentric –t dted –d texture –l 10 –o > terrain/wasatch_utm.ive > > > > Any input on the matter would be appreciated… > > -Shayne > > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
_______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
