In my experience, Transparency does not work correctly in Java 3D and hasn't
for well over a year.  Very frustrating to me since *most* of the things I
want to do involve surrounding one polyhedron with another with the outer
one partly transparent.   I've had to use "SCREENDOOR" type transparency
which is very unsatisfying.  I was told that transparency will work better
in the next release of Java 3D.

Bob Gray

-----Original Message-----
From: Damir Arh [mailto:[EMAIL PROTECTED]]
Sent: Thursday, October 12, 2000 5:05 AM
To: [EMAIL PROTECTED]
Subject: [JAVA3D] Transparency problems in Java3D 1.2


Hello!

Yesterday I decided to update my Java3D installation. I installed Java3D 1.2
and Java Plug-In 1.3 to be able to try out some of the new J3D applets I
found on the net.

I was really satisfied with what I saw until...

I tried out a small program I was writing. It's just a small transparent box
with one side moveable with a slider. Inside it there's a bunch of spheres
bouncing around. I use a MouseTranslate and a MouseZoom behavior to freely
rotate/zoom the view. Probably this program will demonstrate a gas at atomic
level in different conditions (pressure, volume etc.) when I finish it.
Well, this program worked just fine with Java3D 1.1 but once I installed the
1.3 version problems appeared. Some of the walls of the transparent box just
aren't visible from the inside from certain aspects of view but to make the
thing more interesting: as soon as I remove the spheres from the inside the
box is fine again.

Is this a bug in transparency functionality or am I really missing
something? I can send the code on request (not much - 5 classes).

Kind regards
--
Damir Arh
http://damir.gajba.net

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