I'm working on a system with several 100,000 separate items for rendering. So, they are being added to the scenegraph via PagedLOD's since each was originally created as a separate geometry file and later spatially partitioned at higher levels to reduce the number of actual distance evaluations. However, our system (using OSG 2.0) allows the user to dynamically alter the ranges within the LOD's children for each of the varying object types. For those nodes in memory, it's not a problem to adjust the ranges via a NodeVisitor traversal when the changes are activated. The problem is with the nodes that will later load.
Is there a way to either: 1) include a callback in a node when it's first written to disk so that it can be activated during its first traversal, get the updated range changes, and then remove the callback from the node? Or 2) externally tie into osgDB::readNodeFile() to dynamically add the callback after the actual load when the nodes are loaded in viewer? Once a node is updated, keeping the callbacks active serves no purpose and eats a lot of update time. Tom Appolloni, [EMAIL PROTECTED] Harris Corp (www.harris.com) _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
