Hi,
I need some help with the osg::Operation.
What I'm trying to achieve seems relatively simple. After loading a
model, I want some background operation to visit with an intersections
visitor.
Pseudo code:
Load Node
Create osg::Operation-derived ref_ptr and do
mThreadedOperations->add(operation);
viewer->addUpdateOperation(operation);
during runtime (e.g. before viewer.frame())
Unfortunately I'm experiencing crashes (vector iterator not
dereferenceable etc) in the intersection visitor ( to be more exact: in
the node->accept(*mIntersectionVisitor))
It works flawlessly if I let the body of the operation execute blocking
after loading.
In my osg::Operation::operator()(osg::Object*) implementation I'm using
the following scheme:
osgViewer::Viewer* viewer = dynamic_cast<osgViewer::Viewer*>(callingObject);
if (viewer)
{
return;
}
else
{
runTheIntersectionVisitor(); ...
}
Is there anything else I need to know? Examples for the osg::Operation
are rare and I don't see from the given implementation if I need to lock
anything.
Can someone give some insight on this?
Cheers
Sebastian
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