Re: [osg-users] Composite Viewer framerate multiple cameras on large data
Hi, I tracked this down to a driver issue, I think; I'm running on a laptop with Nvidia Optimus graphics using Ubuntu 12.04, and support for the dual-gpu is a little wonky. I reconfigured my drivers, xorg headers, and bumblebee optimus support, and got everything working happily. Thank you! Mods can close this thread, I guess. Cheers, Nick -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=58822#58822 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Composite Viewer framerate multiple cameras on large data
nsm4d wrote: > Hi, > > I pulled the osgviewerQt example code into my project, and built and ran > that. 3 out of 4 times, it runs fast (~60 fps), however, sometimes it runs > slowly (~7 fps). So I don't think that the problem is my dataset or viewer > setup. Attached are the stats when it runs fast vs. slow. > > Nothing about my system configuration changed between runs - I ran it once, > it was fast, I took the screenshot. I ran it and closed it a few more times, > and one of them was slow, I took another screenshot. I ran it again after > that, and it was fast. It looks like there is a big gap between the "Draw" > and the "GPU" when it is running slow. Driver issue? > > Thank you! > > Cheers, > Nick > > Fast > http://imgur.com/lZQkDIT > > Slow > http://imgur.com/ohuka2J Moderator blocked my post with attached images, so I edited and linked to them instead. -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=58795#58795 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Composite Viewer framerate multiple cameras on large data
HI Nick, What type of frame rate do you get when running on a single window vs multiple windows? What do the frame stats suggest for what is the bottleneck? Sharing context won't help as it'll force you to use single threaded viewer. There might be other routes though, so as just using one context with mulitple viewports on it so you can still have your multiple views. Robert. On 1 April 2014 19:05, Nick Modly wrote: > Hi, > > I have a scene graph set up with a large dataset ( A Geocentric Earth from > osgEarth). In my composite viewer, I want to have multiple viewpoints (with > separate camera manipulators/projection matrices; ie. an Orthographic, > perspective, etc) each within a QT widget. > > I got this set up the way I wanted it by following the osgViewerQt > example, using the CullDrawThreadPerContext threading model, but the > framerate is pretty low. > > Are there any tricks I can do to improve the performance? Sharing graphics > contexts, etc? > > > Thank you! > > Cheers, > Nick > > -- > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=58772#58772 > > > > > > ___ > 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
