Hi,
This might be a total beginners question, but I didn't find any
sufficient information in the forum nor in the documentation.
Let's assume I have a scene composed of some models, let's say a
trees/houses which are the same model.
If I want to load the model once and use it multiple times
I does this:
const static osg::ref_ptr osg::Node staticNode =
osgDB::readNodeFile(Shapes/Shape.osg);
then for each required instance:
const static osg::ref_ptr osg::Node nodeCopy =
(osg::Node*)staticNode-clone(osg::CopyOp::DEEP_COPY_NODES);
--
Read this topic online here:
Hi Paul,
but isn't this just cloning? With other words: is there something that
is shared between the nodes?
Plus, i would favour something not involving static data ;-)
cheers
Sebastian
I does this:
const static osg::ref_ptr osg::Node staticNode =
osgDB::readNodeFile(Shapes/Shape.osg);
Is the only way i worked out that works, though i belive there is a tutorial in
the turorial section.
Got to ask though, whats wrong with using static?
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=12812#12812
.
From: osg-users-boun...@lists.openscenegraph.org on behalf of Sebastian
Messerschmidt
Sent: Sat 23/05/2009 14:42
To: OpenSceneGraph Users
Subject: [osg-users] Referencing loaded models
Hi,
This might be a total beginners question, but I didn't find any
sufficient information in the forum
The reason i chose static is so the model is loaded only once when the first
class instance is created.
You could however create this node non-static but you must make sure you load
it only once, like put it in another class and referance to it or something.
--
Read this topic
Kim C Bale wrote:
Hi Sebastian,
Unless you explicitly ask the osg to clone your model's geometry it will
share the geometry by default. It simply stores a pointer to the loaded
model's vertices etc. So the below code should work for you.
You can also set osgDB to cache the model in
:39
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] Referencing loaded models
Kim C Bale wrote:
Hi Sebastian,
Unless you explicitly ask the osg to clone your model's geometry it will
share the geometry by default. It simply stores a pointer to the loaded
model's vertices
Kim C Bale wrote:
Could you not check the name of parent node to identify the instance of the
child?
I might be wrong I haven't used the picking functionality for a while.
K.
Tried that but it always gives the parent node of the first instance.
--
Read this topic
.
From: osg-users-boun...@lists.openscenegraph.org on behalf of Paul Griffiths
Sent: Sat 23/05/2009 15:39
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] Referencing loaded models
Kim C Bale wrote:
Hi Sebastian,
Unless you explicitly ask
Then something else is wrong. The nodePath of your hits should be
accurate to the specific node that was picked.
This is pretty routine stuff as anyone using a scene graph is likely to
have nodes scattered in at least dozens of places around their scene graphs.
-Paul
Paul Griffiths wrote:
Hi Paul,
Tried that but it always gives the parent node of the first instance.
If that's the case, then you're probably using getParent(0) to go up in
the graph, instead of using the intersection's node path.
Remember, the model can have a whole hierarchy inside too, and the
intersection
Skylark wrote:
If that's the case, then you're probably using getParent(0) to go up in
the graph, instead of using the intersection's node path.
Yes, i am going
osg::Node* node = hitr-nodePath.back();
if (node node-getNumParents() 0)
{
node = node-getParent(0);
...
}
now im trying
Found the fault, forgot to add hitr-nodePath.pop_back() at the end of each
itteration
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=12825#12825
___
osg-users mailing list
Hi Paul,
Yes, i am going
osg::Node* node = hitr-nodePath.back();
if (node node-getNumParents() 0)
{
node = node-getParent(0);
...
}
Yes, well no wonder you're always getting the same parent... :-)
now im trying this but its crashing:
What you want to do is walk the path up from the
15 matches
Mail list logo
