I fixed the problem I was having embedding an osgViewer in a gui. osg
apparently does not save and restore the OpenGL context when it does its
drawing, but rather assumes it is in its default state. It does restore the
state to the default except that (as far as I could tell) the OpenGL matrices
are not restored to the default. I added a beginExternalDraw() and
endExternalDraw() to bracket the call to osgViewer::frame() which fixes things.
Gerald
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