Children not accessible after saving to/loading OSGb

[farshizzo]

There is an undocumented plugin that allows changing the name of underlying scene graph nodes. Here is sample code showing how to name groups nodes using it:

# Load extension
osg = viz.add('SceneGraphTools.dle')

# Set name of group node
group = viz.addGroup()
osg.getRootNode(group).setName('MyGroup')

Regarding saving out OSGB files with images, you can use the following options to have it save the images to file or reference existing image files:

"""
OSGB options:

WriteImageHint=<hint>
	IncludeData - embed image data
	IncludeFile - embed image file
	UseExternal - reference existing external file
	WriteOut -writes image to external file
"""
viz.res.setFileLoaderOption('WriteImageHint=IncludeData')
model.save('model.osgb')