Hi Yuri,

  If you are using v1.2.1, please try v1.2.1_03 and v1.3 beta1.
If the problem still exists, send us a test program to
investigate.

Thanks.

- Kelvin
--------------
Java 3D Team
Sun Microsystems Inc.



>Delivered-To: [EMAIL PROTECTED]
>MIME-Version: 1.0
>Date: Tue, 15 Jan 2002 12:49:17 -0500
>From: Yuri Nikishkov <[EMAIL PROTECTED]>
>Subject: [JAVA3D] Transparency problem in 1.2.1
>To: [EMAIL PROTECTED]
>
Hi all,

I have a problem with transparent shapes in Java3D 1.2.1. It is not a sorting
problem, I'm aware that transparency sorting is not implemented in that version.
I have
a single transparent shape in my SG and the problem is that some of the opaque
shapes that has to be seen through the transparent shape are not shown. You can
still see some of the other opaque shapes, depending on the rendering order. As
far as I understand, transparency in Java3D 1.2.1 works like this: first, all
opaque
shapes are rendered, then, in the next pass, all transparent shapes are rendered
with depth buffer frozen. In my application, however, it looks like transparent
shape
is rendered together with the opaque shapes and depending on the rendering order
the transparent shape blends its color with previously rendered opaque shape or
it doesn't if the opaque shape is not yet rendered.

You can see the example picture in the attachement. The transparent shape is in
front, and you can see only one opaque shape and axis through it. Four other
shapes
that are partially behind the transparent shape are not there.

I have tried the AppearanceTest applet in Java3D demos, and it works correctly.
So it means that I have a problem in some of my SG settings. What are the
possible
reasons for transparent shapes not to be rendered in a separate pass?

Thanks,
Yuri.

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