----- Original Message -----
Sent: Monday, April 01, 2002 8:40
PM
Subject: Re: [JAVA3D] Geometry
Update
Ooh
this is a good one!
Since it is considered illegal to update the vertices
of by-ref geometry outside of a geometry updater it would be "bad" to do as
you have suggested. However, I am not sure if it would actually be a
problem if you do this from a behavior since I would expect that both geometry
array's would already be winging their way to the card. But if you
wanted to play it safe, try making a dummy updator that does nothing but
invoke the other updater on the other geometry array. This should lock
both at the same time. You could even build a generic class that could
manage "shared by-ref geometry" to provide this locking.
Dave
Yazel
hello everyone,
I have an question concerning geometry-update,
with shared vertices:
Two (Indexed)GeometryArrays (BY_REFERENCE)
share the same vertices (with different indices), because some parts have
different Materials.
I decided to put the same cordinate/normal
arrays in both and I update one with a GeometryUpdater,
and both were updated correct. :-)
But I am wondering if this legal, because the
second one has no GeometryUpdater ? do I have to put an dummy
updater for the second one ?
greetings
-Michael Nischt
btw. a Test application is attached for better
understanding
