saving/restoring views..

[Randy Heiland]

On this same thread, I'd like to also save the camera "zoom".  I save the
camera params as discussed previously, then I tried something like this:

va = ren.GetActiveCamera().GetViewAngle()
 then:
ren.GetActiveCamera().SetViewAngle(va)
...ViewingRaysModified()

but this doesn't seem to work for me, I seem to still need a ren.ResetCamera()
to get something displayed in the window - which undoes the ViewAngle.

Any ideas?

--Randy
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