Hi, On Thursday 23 April 2009 16:59, Paul Martz wrote: > But I'm interested in hearing other ideas on how to handle this issue. > Thanks in advance for any feedback.
That depends on what you need to do 'modify' in the scenegraph. In certain situations, like dynamic model view transform updates for a subraph (like in your autotransform/bilborad example), the Node::_cullCallback can apply some dynamic changes to the CullVisitor that is used to call the Cull callback. Also applying state attributes or modes as part of a dynamic created StateSet can be pushed/poped on the fly to the CullVisitor without disturbing the scenegraph as a whole. But keep in mind that you need seperate StateSets/StateAttributes for each CullVisitor. Either cache them per CullVisitor pointer or just allocate them on each frame if you do not need too much of them per frame. Greetings Mathias -- Dr. Mathias Fröhlich, science + computing ag, Software Solutions Hagellocher Weg 71-75, D-72070 Tuebingen, Germany Phone: +49 7071 9457-268, Fax: +49 7071 9457-511 -- Vorstand/Board of Management: Dr. Bernd Finkbeiner, Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech Vorsitzender des Aufsichtsrats/ Chairman of the Supervisory Board: Michel Lepert Sitz/Registered Office: Tuebingen Registergericht/Registration Court: Stuttgart Registernummer/Commercial Register No.: HRB 382196 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
