Hi, I am new to OpenScenegraph and I am trying to use osgviewer in an MFC MDI application (something like osgviewerMFC example) for displaying entities obtained from an external application. I am using OpenScenegraph 2.2.0
The structure of the graph I am making is something like this: 1. osg::Group as the root node (RootNode) 2. osg::LightSource node (LightNode) as a child of RootNode 3. One osg::Geode node per entity (GeoNode) as a child of LightNode 4. One osg::Geometry node per entity (GeomNode) as a child of GeoNode (BIND_PER_PRIMITIVE_SET for normals and colors) 5. osg::DrawArrays added as primitive sets to GeomNode Using test data from the external application and saving the graph to osg files, I observed that their size is very big (88 MB in one case and 115 MB in another). Moreover the memory consumption is very high (about 130 MB in one case and 350 MB in another) and it will be a serious problem when trying to depict more than one sets of data (in different child windows of the MDI application) Are there any guidelines for reducing the memory usage? P.S:In addition I noticed that in some cases there is a performance gain when using setUseVertexBufferObjects(true). Could you please provide with an explanation of when something like this can happen? Thank you very much in advance ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=50582#50582 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
