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CompositeViewer support: Difference between revisions
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=== DatabasePager === | === DatabasePager === | ||
* osgViewer is set up so that the Scene object manages the scene graph and the database pager assocaited with that scene graph. There is one Scene object per scene graph, and multiple views should share the same Scene instance if there share the same scene graph. Virtue of this sharing the Scene shouldn't go out of scope while at lest on View still references, and neither should its associated DatabasePager go out of scope either.<ref>https://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg04006.html</ref> | |||
* osgViewer::Viewer/CompositeViewer all have the DatabasePager built into them, and will automatically run the database pager thread on demand and take care of all the operations required to manage a paged database.<ref>https://groups.google.com/d/msg/osg-users/eMh8DfsKZhQ/F1V5BZS3hLEJ</ref> | * osgViewer::Viewer/CompositeViewer all have the DatabasePager built into them, and will automatically run the database pager thread on demand and take care of all the operations required to manage a paged database.<ref>https://groups.google.com/d/msg/osg-users/eMh8DfsKZhQ/F1V5BZS3hLEJ</ref> | ||
* it might just be far more productive to use the OSG's built in database paging support. All you need to do is decorate your subgraphs with a osg::PagedLOD or osg::ProxyNode, with osg::PagedLOD being the method of choice as it'll do load balancing for you - both loading new tiles on demand and deleting ones that are no longer required, all automatically done by osgDB::DatabasePager/osgViewer. <ref>https://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg12365.html</ref> | * it might just be far more productive to use the OSG's built in database paging support. All you need to do is decorate your subgraphs with a osg::PagedLOD or osg::ProxyNode, with osg::PagedLOD being the method of choice as it'll do load balancing for you - both loading new tiles on demand and deleting ones that are no longer required, all automatically done by osgDB::DatabasePager/osgViewer. <ref>https://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg12365.html</ref> | ||