Thank you for your answer.
I've tried everything you said, but the problem remains...
I went on with experiments and discovered that replacing
"osgViewer::Viewer"->setDone(
true);
with
"osgViewer::Viewer" -> setSceneData(0);
"osgViewer::Viewer" ->frame();
"osgViewer::Viewer"->setDone(true);
solves all discussed issues.
I'm not sure though that the call of setSceneData(0) is a correct
solution...
More over, textures on objects are good now, but textures on osgText
still have the same problems. On Widget destruction (in QT) and it's
recreation there are filled sqares insted of text (osgText)...
I wonder what else could be done?
Maxim Gammer
2009/10/29 Eric ZAREMBA <[email protected]>
> Hi,
>
>
>
> I experiment this. I used an already displayed scene in another viewer. (I
> think you do not reload your nodes).
>
> So, they are a marker in the osg::Texture which indicates to unref the
> image after apply.
>
> I thinks it a save memory trick.
>
> But in our case, the image does not exist anymore when the scene is set to
> the second view.
>
> So, I wrote a visitor which look into each node of my graph and check the
> stateset.
>
> I apply it just after loading before insert it in my scene.
>
>
>
> So, my code:
>
> // osg::StateSet* stateset = …
>
> osg::StateAttribute* attribute = NULL;
>
> while( (attribute = stateset->getTextureAttribute(i,
> osg::StateAttribute::TEXTURE)) )
>
> {
>
> ++i;
>
> osg::Texture* tex = dynamic_cast<osg::Texture*>(attribute);
>
> if( tex )
>
> tex->setUnRefImageDataAfterApply( false );
>
> }
>
>
>
> And all should work fine.
>
>
>
> Eric Z.
>
>
> ------------------------------
>
> *De :* [email protected] [mailto:
> [email protected]] *De la part de* Maxim Gammer
> *Envoyé :* jeudi 29 octobre 2009 12:41
> *À :* OpenSceneGraph Users
> *Objet :* [osg-users] OSG and QT problem
>
>
>
> Hello,
>
> There is one problem while using OSGViewer in QT:
> first run of Widget goes just fine (1.jpg). After I close it and then
> create it again there is an "incorrect" picture (2.jpg).
> There is a suspicious chancks in debug info (1.txt and 2.txt):
> ---- returning cached instanced of ----- tells us that an object wasn't
> deleted. I closed widget though.
>
> At the first run there are following strings in debug, but they dissapear
> at second run:
>
> ------------------
> RegisterWindowingSystemInterfa
>
> ceProxy()
> X11WindowingSystemInterface()
> GraphicsContext::setWindowingSystemInterface() 0x1b26f20 0x7f39a7ccc890
> -------------------
>
> The following strings appear at the moment when I delete OSGViewer:
>
> --------------------
> Warning: deleting still referenced object 0x6b8d378 of type
> 'PN3osg10ReferencedE'
> the final reference count was 2, memory corruption possible.
> --------------------
>
>
> OSG 2.8.2.
> QT 4.5.0
>
> Where to dig for a solution? Thanx in advance.
>
>
>
> --
> Maxim Gammer
>
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
>
--
Maxim Gammer
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