I just started using OSG and have never used ref_ptr's before, though I've read
the "A Short Introduction to the Basic Principles of the Open Scene Graph" and
belive I understand the concept. But I wonder if you have any advice on the use
of ref_ptr's on OSG objects, and If you use them in some standard way.
I recon all the objects that inherits from "Referenced" should use ref_ptr for
safer memory alloction/deleting, but I guess it's just a subjective choice.
The tutorials though use "dumb" pointers as in the Basic Geometry example:
"
...
int main()
{
...
osg::Group* root = new osg::Group();
osg::Geode* pyramidGeode = new osg::Geode();
osg::Geometry* pyramidGeometry = new osg::Geometry();
"
but i guess it's just for simplicity.
In the guide "A Short Introduction to the Basic Principles of the Open Scene
Graph" on the use of ref_ptr, they first create a node using ref pointer, then
they add a node using new, and say:
"
Line 25 does more or less the same thing as the previous case. The
difference is that the geode is allocated with new and added as group's
child in a single line of code. This is quite safe, too, because there are
not many bad things that can happen in between (after all, there is no
in between.)
"
that may be a little missleading since it's not a smart pointer, and needs to
be deleted explicitly.
Erlend
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