I have not an extremely deep knowledge of the intricacies of OSG code, but if there is something I can help with, let me know.
Anyway, is it OK to use osgDB::writeObjectFile on the osgViewer::Viewer object to create the config file? Best regards, Javier Taibo. On Thu, Oct 14, 2010 at 9:24 AM, Robert Osfield <[email protected]>wrote: > Hi Javier, > > Thanks for pointing these problems out, I hadn't tested the viewer > configuration plugin recently so hadn't spotted the regression. I > suspect the regression happened when we merged the new serialization > support. I'll put fix the viewer configuration on my TODO list for > the week. > > Cheers, > Robert. > > On Wed, Oct 13, 2010 at 10:27 PM, Javier Taibo <[email protected]> > wrote: > > Hi, > > > > I am trying to figure how to use config files for camera definition > with > > osgviewer. > > After some search in the list and browsing the code, it seems that camera > > config files > > can be passed to osgviewer in two ways: the environment variable > > OSG_CONFIG_FILE > > and the command-line option "-c". There are some examples in > > OpenSceneGraph-Data/Configuration (with .view extension), but they fail > in > > different ways: > > > > osgviewer -c Configuration/SingleScreen.view cow.osg > > > > Warning: Could not find plugin to read objects from file > > "Configuration/SingleScreen.view". > > > > OSG_CONFIG_FILE=Configuration/SingleScreen.view > > osgviewer cow.osg > > > > Warning: Could not find plugin to read objects from file > > "Configuration/SingleScreen.view". > > Viewer::realize() - failed to set up any windows > > Warning: Could not find plugin to read objects from file > > "Configuration/SingleScreen.view". > > Viewer::realize() - failed to set up any windows > > > > It seems that the program cannot find the plug-in to read ".view" > files. > > What plug-in is this? Isn't it "osgdb_osgviewer"? > > > > Anyway, after browsing the source and experimenting a little more, I > > managed to get it working > > with regular .osg files (instead of .view) that I created with > > osgDB::writeObjectFile from an > > osgViewer::Viewer with the desired configuration. It works with the > > command-line option: > > > > osgviewer -c mycamera.osg model.osg > > > > But using the environment variable OSG_CONFIG_FILE still does not work, > it > > keep showing > > the following messages: > > > > Viewer::realize() - failed to set up any windows > > Viewer::realize() - failed to set up any windows > > > > One last issue with camera config in the command-line option is that > even > > though it work > > for the projection matrix and other features, the initial view is reset > by > > osgviewer. To avoid > > this, I added this code to osgviewer.cpp after keyswitchManipulator > creation > > and configuration. > > > > if ( arguments.read("--noautohomeview") ) { > > osg::Vec3 eye, center, up; > > viewer.getCamera()->getViewMatrixAsLookAt( eye, center, up ); > > keyswitchManipulator->setHomePosition( eye, center, up ); > > } > > > > This way, the config file view matrix is set as home position for the > > manipulator, what > > prevents the manipulator to override it. It is activated with a > command-line > > option, to keep > > backwards compatibility. > > > > Btw, I am using OSG 2.9.9. > > > > My questions are: > > Is all this config file system deprecated? (the -c command-line option > is > > not shown in the > > osgviewer help) > > If it is not, what am I doing wrong? > > Is there any way to see the initial camera position defined in the > config > > file, > > without needing to modify the osgviewer code? > > > > Any help would be very appreciated. > > > > > > Best Regards, > > Javier Taibo. > > > > > > _______________________________________________ > > 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 >
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