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 modly.n...@gmail.com 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
[osg-users] Composite Viewer framerate multiple cameras on large data
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
