HomerSimpson wrote:
> My project is throwing an occasional "unhandled win32 exception" error and
> I've been trying to figure out why.
One thing you should check is if you have any raw C++ pointers pointing to
objects that are also pointed to by ref_ptr's. Accessing the object through the
raw pointer after that the ref_ptr's have gone out of scope is illegal since
the object is automaticly destroyed when the last ref_ptr goes out of scope.
Notice that since OSG uses ref_ptr's in most places any object that you add to
a scenegraph will most likely be referenced by a ref_ptr. You should therefore
try to avoid using raw pointers to such objects. It's safer to use ref_ptr's.
Example: the following will fail
Code:
osg::Node* myTransform = new osg::MatrixTransform();
{
osg::ref_ptr< osg::Group > myGroup = new osg::Group();
myGroup->addChild(myTransform);
}
myTransform->someMethod(); // Wrong. Object has been deleted.
In the example above replace the first line with:
Code:
osg::ref_ptr< osg::Node > myTransform = new osg::MatrixTransform();
and use myTransform.get() inside the addChild call.
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=23809#23809
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