Yes, I think you are right, it's something in that vein. I can trick it into returning the correct result by scaling the input (normalized) coordinates to compensate for the change in the viewport aspect ratio. So that implies that somewhere, old values are still lurking around.
Thanks again for your thoughts on this - I will revisit the issue when time allows :) Glenn On Tue, Mar 25, 2008 at 12:56 AM, Guy <[EMAIL PROTECTED]> wrote: > Hello, > I'm not sure about the problem you are talking about, but just give a > suggestion that might help. > Maybe the slave camera cache its size, the cache does not update with > the > Viewport change, and then the intersection takes the data from the > cache? > You could try to clear the cache and see if the problem continues. > And of course maybe it has nothing to do with it, and then I apologize > for wasting your time. > > Guy. > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Jean-S?bastien Guay > Sent: Monday, March 24, 2008 10:03 PM > To: OpenSceneGraph Users > Subject: Re: [osg-users] osgViewer::View::getCameraContainingPosition() > returns weird results when using slave cameras > > Hi Glenn, > > > In a nutshell, I am using a single slave camera (in order to embed my > > OSG surface in a .NET control). If I resize the viewport after > creation, > > computeIntersections() no longer returns correct results -- the Y > value > > is incorrectly scaled. It only works correctly if I resize the window > > back to its original aspect ratio. > > Yes, that sounds like a different problem. In my case, I was not getting > > correct results from computeIntersections() whenever CompositeViewer was > > using a single view with slave cameras - no resizing at all involved, > just using setUpViewAcrossAllScreens(). > > You'll have to dig further. I suggest you try starting with a breakpoint > > in Viewer/CompositeViewer::eventTraversal() (depending on the viewer > type you use) and compare the behavior before and after resizing the > viewport. > > Good luck, > > J-S > -- > ______________________________________________________ > Jean-Sebastien Guay [EMAIL PROTECTED] > http://www.cm-labs.com/ > http://whitestar02.webhop.org/ > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or > g<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 > -- Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : 703-652-4791
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