we are using Volumizer with the Inventor classes and have found problems
with the memory clean up.
Each time a voivGeometry and voivAppearance is deleted ~ 4 MB of memory
isn't cleaned up.
The destructor of voivGeometry and of voivAppearance miss code for
deleting the tetras, volumes, and bricks as well the voDrawActionCache
(primary problem!!!). I wrote a work around, which is sufficient for our
purposes and stable on O2, Indigo, Octane and Onyx, but perhaps some of
the experts can create a more professional patch similar to the clean up
routine provided for OpenGL Volumizer.