Hi Pankaj, This could be a driver issue, a Qt issue or something else entirely. There really isn't much we can say about such novel combinations of hardware and software. Perhaps Qt forums might help, or WorldViz's Vizard support.
My general advice would be when doing high end projeciton systems I'd recommend avoiding using GUI libraries, they aren't at all well designed for multi-context, multi-threaded graphics applications. The OSG's osgViewer is designed specifically to handle this high end usage so I'd recommend keeping things simple and not mixing 3D windows with the GUI elements. Robert. On 8 June 2013 15:07, Pankaj Bansal <[email protected]> wrote: > Hi, > First I want to explain a bit the system we are using. > We have 8 projector rear projection system with projection arranged in 2X4 > grid like this > > P P P P > P P P P > > Top row is handled by one QuadroPlex 7000 and second row by other QuadroPlex > 7000. > > 1. Low FPS with QT-> I am using Qt with worldviz vizard (Third party library > based on OSG. you can see that on worldviz website) . I have created a > QmainWindow and created a new widget and set the vizard graphics context > between that new widget and set that widget as central widget of QMainWidget. > > When I am running the application in fullscreen mode, the FPS in 2D is 15 and > in 3D is 30. Thing is if I resize the window so that the window is only in > top projectors region ie. I decrease the height and take window in upper > projector row region, the FPS is 60. Also lets say window is partially in > upper row and partially in bottom row then also FPS is 15 and 30. In short, > if any part of window is visible in bottom row projectors FPS decrease to 15 > and 30 else it stays 60. > > Also if I run the vizard without Qt, everything runs fine. > > Also, If I remove all the menus and dockWidgets from the Qt (vizard is set to > centralWidget of QmainWindow), It runs fine. So when the Qt is visible, the > FPS goes down but we have another application using OSG and Qt, it runs fine. > I have tried that. > So problem is when I run my vizard application with QT on multiple display > system. > > Any help.. > > Thank you! > > Cheers, > pankaj > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=54498#54498 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
