Hi Nick, On 19 July 2013 17:11, Trajce Nikolov NICK <trajce.nikolov.n...@gmail.com>wrote:
> I am facing a problem maybe you give some hints. > > in pageable model (like TerraPage for example) I need to track a model > when it is loaded (paged in) and unloaded (paged out). For the first I can > make a NodeVisitor and run it in ReadFileCallback so I know when my > external referenced model was paged in. How to know when it gets out? The > goal is to keep a valid pointer over the "lifetime" of a part of the scene. > > Thanks for any hint or trick > > I'd look at recreate a osg::Observer subclass that you attach to the root of the subgraph that has been loaded via node->addObserver(), this observer will then get called via it's Observer::objectDeleted(void*) method. Robert.
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