Hi Glenn,
Right now the OSG just supports updating an entire VBO when used via
the osg::Array class.
You could implement your own subrange copying by getting the VBO
handle yourself and then manually doing the copying that you need to
do.
The other alternative would be to look at how one might
Robert et al,
Does OSG have support for updating a sub-range in a VBO, as with
glBufferSubData? I see some hints of this in GLBufferObject:BufferEntry, but
not an obvious way to use it from the Geometry interface. My goal is to
update a subset of a large VBO without having to re-transmit the
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