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 conveniently add support for uploading sub ranges. So far I've avoiding tackling this as the API for is potentially quite cumbersome. Robert. On Sun, May 2, 2010 at 1:59 PM, Glenn Waldron <[email protected]> wrote: > 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 entire > array. > > > Glenn Waldron : Pelican Mapping > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
