Thank Gordon and Robert. I found that using viewer.setUpViewInWindow(x,y,width,height) was the most convenient way for me, because my program runs in multi-thread mode. Best regards, Dat
On Tue, Jun 23, 2009 at 3:28 AM, Robert Osfield<[email protected]> wrote: > Hi Dat, > > The various was that Gordon suggested will give you an few pointers on > how to tell an existing osgViewer based application such as osgviewer > to open up in different sizes. All of these options effectively give > the viewer the default settings to assume when creating the > GraphicsWindow. > > In your own applications the preferred route may well be to just set > up the windows programatically by using Traits by hand and specify the > window size you want that way (see the osgcamera or osgwindows > examples), or to use the viewer.setUpViewInWindow(x,y,width,height) > convenience method. > > Just making the window size smaller probably won't cut it though, and > you may well be forced to change the screen resolution of the display > to get the fill rate needs down to a value that your graphics hardware > can handle. To change the window resolution you'll need to use > WindowingSystemInterface to set the ScreenResolution. i.e. > > osg::GraphicsContext::WindowSystemInterface* wsi = > osg::GraphicsContext::getWindowingSystemInterface(); > wsi->setScreenResolution(osg::GraphicsContext::ScreenIdentifier(0), 480, 320); > > On exit form your app you'll need to restore the original screen > resolution using the above technique, as there isn't any automatic > scheme that does this for you. > > Robert. > > > > On Mon, Jun 22, 2009 at 10:42 PM, tien dat<[email protected]> wrote: >> Dear all, >> I need to run OpenSceneGraph on a hand-held device (a Viliv S5) and it >> has a integrated graphics card only. So I want to reduce the >> resolution of my application so that the frame rate can be higher >> (right now it renders images at 1024x600 and runs at 0.5 fps or less). >> Is there a way to tell viewer render pictures at a specified >> resolution (doesn't have to be full screen)? >> Thanks a lot, >> Dat >> ------------- >> Dat Tien Nguyen >> PhD student, Computer Science Department >> The University of Iowa, IA 52242 >> http://cs.uiowa.edu/~tinguyen >> > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > -- ------------- Dat Tien Nguyen PhD student, Computer Science Department The University of Iowa, IA 52242 http://cs.uiowa.edu/~tinguyen _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
