Will,
Re the precision problem I was not able to run your applet from the link, maybe it was
the firewall.
Can you please try using doubles not floats for your
calculations and transforms and let me know how it goes. Single precision floats
only give you 'reasonable' accuracy for 6-9 decimal digits. Typically I have found
(with VRML) the limits are sometimes even less before you get jitter.
Chris
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