Hi Danny, On Fri, Feb 12, 2010 at 10:30 AM, Danny Lesnik <[email protected]> wrote: > Can anybody help me how can I run osgDB::ReadNodeFile in separate Thread? I'm > loading huge 3ds model and I don't want to keep my window frozen till the > model is opened.
The OSG has in inbuilt DatabasePager that supports reading 3d models in one or more background threads. To use it you have to place a PagedLOD or ProxyNode in your scene graph, these contains the details of your external file request. Then in the cull traversal will automatically place the external file requests with the DatabasePager that will load them and merge them all with the scene graph automatically. In you case ProxyNode is probably the one you want to use. The other alternative is implement your own threading for it by using OpenThreads::Thread, or osg::OperationThread. It will require you to sync the main thread with your thread to make the request of the file load and to merge the the data. The osgterrain example has code that does this but it also does lots beside so would be rather an overkill example. Most likely just using ProxyNode will get you what you want. Just put one of these in your scene graph and specify the external reference. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
