Hi Jason, If you are sharing a database between multiple viewers that are created/deleted then you'll need to switch off the Texture::setUnrefImageAfterApply(bool) feature that is set to true by default for paged databases. The DatabasePager has a method for controlling this, but I'm afraid I can't recall this off the top of my head. It's a topic that's been covered and number of times on osg-users so have a poke through the archives.
Robert. On Wed, Oct 14, 2009 at 6:17 PM, Jason Beverage <[email protected]> wrote: > Hi all, > > I'm having an with creating and destroying multiple viewers that load a > paged database. I've put together a very simple example of this that > creates a viewer to display a model, waits for it to complete, then creates > another viewer. > > #include <osgDB/ReadFile> > #include <osgViewer/Viewer> > > int main(int argc, char** argv) > { > osg::ArgumentParser arguments(&argc,argv); > > osgViewer::Viewer* viewer = new osgViewer::Viewer(); > viewer->setUpViewInWindow(100,100,500,500); > osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments); > viewer->setSceneData( loadedModel.get() ); > viewer->run(); > delete viewer; //Comment out this line and things run fine. > > viewer = new osgViewer::Viewer(); > viewer->setUpViewInWindow(100,100,500,500); > loadedModel = osgDB::readNodeFiles(arguments); > viewer->setSceneData( loadedModel.get() ); > viewer->run(); > delete viewer; > } > > If I load a simple model like cow.osg, things are ok except for the fact > that the cow is white on the second run. If I run using a paged database > such as http://www.openscenegraph.org/data/earth_bayarea/earth.ive, the app > crashes. > > This happens in the SVN trunk of OSG as well as the 2.8.2 release. Is there > something special that I need to do with the viewers when dealing with paged > databases to clean things up correctly? > > Thanks, > > Jason > > _______________________________________________ > 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
