I have a problem with removing drawables from a geode. I created a class
which inherits from osg::Geode. In my class I overwrite the accept
method. The goal is to implement my own culling mechanism. So I check if
the node visitor is a cullvisitor. Then I want to remove all drawables
and add new ones, depending on the camera position.
The Code looks like this.
void WWOsgNode::accept(osg::NodeVisitor &nv)
{
if(nv.getVisitorType() == nv.CULL_VISITOR)
{
printf("I am a cull Vistor\n");
try {
this->removeDrawables(1,this->getNumDrawables());
}
catch(...)
{
printf("Something wrong while removing stuff\n");
}
printf("Number of drawables in Displaylist:
%d\n",this->getNumDrawables());
...
}
this crashes the program. The program runs when I remove the
removeDrawables call. I already tried to iterate over all drawables
removing everyone with removeDrawable. This causes the same problems. I
can provide a backtrace if this helps. My OpenSceneGraph version is 1.2
on Ubuntu Feisty compiled from source. I tried other version of
OpenSceneGraph so I guess I am doing something wrong.
What am I missing?
I hope somebody can help
Martin
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