Hi Marc
> What's the easiest way to load a greyscale texture and use it as a
> transparency map on a surface that has no inherent color?
Well I've got the same problem recently for other reasons. I wasn't sure
if LUMINANCE as Texture setting, CHANNEL_8 as ImageComponent2D setting
and GRAY_SCALE
> > What's the easiest way to load a greyscale texture and use it as a
> > transparency map on a surface that has no inherent color?
> Well I've got the same problem recently for other reasons. I wasn't sure
> if LUMINANCE as Texture setting, CHANNEL_8 as ImageComponent2D setting
> and GRAY_SCALE
I am finding the discussion on particle
systems useful. We are trying to develop
a particle system for a physics simulation
of MSU's special superconducting cyclotron.
It seems like we have two different situations-
one in which small quads are made with a
dynamic texture and the other in which
Well unless the spheres are being used in the 3 dimensional sense, you could
use a texture mapped quad with a sphere texture to give the illusion of
spheres. A 3d model of a sphere is usually pretty heavy on triangle count.
If you have a tremendous number of such spheres then using "imposters" li
Hi Alex
> but since we are just beginning with this, I was
> wondering whether the quad
> with texture approach being discussed would
> be better--or perhaps some combination
> with LOD.
Well a particle - speaking now in subatomic terms -
resambles rather a point than a sphere. So why not
use a
I have just tested j3d 1.3b1 with my Applet. There seems to be a new
bug concerning the operation of an OrientedShape3D attached to a
SharedGroup. Only the first Link node referring to the SharedGroup is
handled correctly, the other ones show no response to rotations of the
scene.
I am using jdk 1
Ingo,
Yes, we noticed this and reported it to Sun months ago with Java 3D
1.2.1 - we are still waiting for a fix.
- John Wright
Starfire Research
Ingo Brunberg wrote:
>
> I have just tested j3d 1.3b1 with my Applet. There seems to be a new
> bug concerning the operation of an OrientedShape3D at
Hi Todd and Fred and the Rest of the Thread Gurus:
Thanks very much for your ideas on this subject.
Todd ! The idea of throwing up a modal dialog to block
the user from doing anything while the system is busy
number crunching is appealing. In cases where the app.
is not MT safe, one could simply
Do you have a test program? A simple test shows that this works as
expected:
import javax.vecmath.*;
public class Normalize {
public static void main(String[] args) {
Vector3f vIn = new Vector3f(0.1f, 0.2f, 0.3f);
Vector3f vOut = new Vector3f();
vOut.normalize(vIn);
Hi Joachim,
This bug (common to both OGL & D3D version)
4599622 - QueryProperties always return textureUnitStateMax = 1
will be fixed in the next v1.3 beta2 release.
Thanks for your bug report.
- Kelvin
-
Java 3D Team
Sun Microsystems Inc.
>Delivered-To: [EMAIL PROTECTED
Hi Huang,
The latest v1.3 beta1 of Java3D using DirectX 8.0 API but
the previous version v1.2.1 using DirectX 7.0 API instead.
We also found that under some graphics card (in particular
neomagic card for laptop) the display mode that use to
work for 3D is no longer working under DirectX 8.0.
Happy New Year Everybody.
Kevin, I made proves under Java 1.3.1 (JAVA 1.4)and I obtained that
Fullscreen mode works only in the OpenGL version and not in the DirectX
version.
> AFAIK, under Java 1.3.1 or earlier, fullscreen exclusive mode is only
> available by using the DirectX version of
FWIW,
I have the DirectX version of 1.3 working at home with XP using an NVidia
based card.
It works very well.
There were some reports of 1.3 not working well with XP, but I think that
MAY be the OpenGL version as the DirextX one seems fine fro what I have done
so far.
Darrin
BTW, I'm glad S
Raul,
If you give me the code to try out full screen (I'm pretty new to Java 3D)
I'd like to try it using Windows XP (DirectX 8.0) and Java 3D 1.3.
Everything else I have tried works well with the DirectX version of Java 3D
1.3 and Windows XP.
Thanks.
Darrin
>From: Raúl <[EMAIL PROTECTED]>
>
VRML can be animated with native code players,
or with Java3d for portability to Linux & beyond.
Good, proper ( and portable ) VRML runs on multiple players.
New solutions include a new support from Korean companies
using Java3d and the code from the popular and still widely
used Cosmo P
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FILETIME=[DD213730:01
John and Ingo,
Did we get back to you with a bug id ? If no, can you provide
us with a test program ?
thanks,
Chien Yang
Java 3D Team.
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Hi Scott,
From the line number of stack trace you are using
Java3D v1.2.1_03 opengl version. Please try the
latest Java3D v1.3 beta1, if it still crash send
us the two VRML models for us to further investigate.
Thanks.
- Kelvin
-
Java 3D Team
Sun Microsystems Inc.
>X-Unix-From: [
Raj,
I think that you can do what you want to do in a Behavior.
The structure I proposed was a subclass of Behavior that
implemented the Listener for your Swing component(s).
In the Listener's action method, your class sends a PostId() to
itself.
Your class has been set to wakeup on PostId, an
Hi Kelvin,
Has a bug report been issued for any of the transparency problems I
demonstrate at
http://www.rwgrayprojects.com/Java3D/Transparency/trans01.html??
Toward the end of this web page shows the object as 3 different quadArrays,
and a very bad transparency problem. If you don't think this
Questions about texture-by-reference:
The attached reply answered some questions about when copies of the
image are and aren't made when applying a texture map onto geometry
for Windows/OpenGL and Solaris/OpenGL. Which of them, if any, holds
true for RedHat Linux 7.1 and up?
Also, when it refers
Hi Dave,
>
> It seems like the only way to do this would be with a 3rd texture unit. If
> we add a 3rd texture unit and the card only supports 2, then:
>
> 1. Will the geometry be rendered twice using multi-texture, and then a
> second pass for the 3rd texture unit?
In Java3D1.3, there will be t
Really good question. I also would like to know this.
Dave Yazel
- Original Message -
From: Mark Powell <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, January 02, 2002 7:31 PM
Subject: [JAVA3D] texture by reference on Linux
Questions about texture-by-reference:
The attac
Thank you for answering this question! I assume this is the only solution
to my problem? Is it possible to do it some other way? Like perhaps use
an ordered group and force the shadows to be drawn using alpha blending in a
second pass?
Dave Yazel
- Original Message -
From: Charmaine
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