[osg-users] Bug in 3.4.0 when exporting .osgx file?

[Werner Modenbach]

Hi Robert,

I think I catched another problem in version 3.4.0.
I try exporting my scene as .osgx file.
But except the xml header nothing is written.
I debuged it and found the following sequence of calls:


osg::ref_ptr<osgDB::ReaderWriter>rw=osgDB::Registry::instance()->getReaderWriterForExtension( 


osgDB::getLowerCaseFileExtension(_filename.toStdString()));

if(!rw.valid())

returnfalse;

osgDB::ReaderWriter::WriteResultresult=rw->writeNode(_node,_filename.toStdString());

-> ReaderWriterOSG2::writeNode(...)
result=writeNode(node,fout,local_opt.get());

-> ReaderWriterOSG2::writeNode(...) os.writeObject(&node);CATCH_EXCEPTION(os);

->OutputStream::writeObject(...)

if(newID)
{
writeObjectFields(obj);
}

->OutputStream::writeObjectFields(...)

ObjectWrapper*wrapper=Registry::instance()->getObjectWrapperManager()->findWrapper(name);
if(!wrapper)
{
OSG_WARN<<"OutputStream::writeObject():Unsupportedwrapperclass"
<<name<<std::endl;
return;
}

->OutputStream::writeObjectFields(...)

ObjectWrapper*wrapper=Registry::instance()->getObjectWrapperManager()->findWrapper(name);
if(!wrapper)
{
OSG_WARN<<"OutputStream::writeObject():Unsupportedwrapperclass"
<<name<<std::endl;
return;
}
->ObjectWrapperManager::findWrapper(...)

pluginLib=osgDB::Registry::instance()->createLibraryNameForExtension(libName);
if(osgDB::Registry::instance()->loadLibrary(pluginLib)==osgDB::Registry::LOADED)
returnfindWrapper(name);
}
returnNULL;

The loadLibrary(...) method returns "PREVIOUSLY_LOADED" and so NULL is returned and nothing gets written.

I think that should be different. Am I right?

- Werner -


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