Hi there,
I have a problem with collision detection. If an objects collides with a
series of other objects,
only the first collision gets reported.
For example:
object X hits A --> WakeupOnCollisionEntry A
hits B while still intersecting A --> nothing happens
leaves A while still intersecting
Hello,
I have got a strange problem with my 3D
objects appearance: several parts of the shape seem to miss and these parts are
not the same when I rotate this object. This is worse when the shape 3d is
double sided (see picture).
I don't guess it is a Z-buffer problem ( I tried to set the Fro
Title: RE: [JAVA3D] Java 3D 1.3 Beta2
We seem to have a slight problem with Java3D 1.3 beta2.
What happens is the following:
When I put a window on top of the window containing the Canvas3D and then bring the frame with the canvas to top again by clicking on on the window title bar, I get
I've seen the same behavior (rarely though, not
reproducable in any way), where geometry seems to change, different shapes are
replaced by other shapes.
One time a tree trunk appeared as an avatar's
head. Those objects aren't even in the same shape or
branchgroup. I haven't tested to
The geometry does not change, but some
parts are not rendered (I can see the bottom of the shape through these "holes"
when it is double sided).
- Original Message -
From:
Scott
To: [EMAIL PROTECTED]
Sent: Thursday, May 02, 2002 1:49
PM
Subject: Re: [JAVA3D]
Olivier Tassy wrote:
> Hello,
>
> I have got a strange problem with my 3D objects appearance: several
> parts of the shape seem to miss and these parts are not the same when I
> rotate this object. This is worse when the shape 3d is double sided (see
> picture).
It looks exactly like problem with
Hi,
all my objects' PolygonAttributes are already in CULL_NONE mode.
When these object are double sided and transparent, the problem does not
occur (with a blender only). but I need some opaque shapes too.
- Original Message -
From: "Artur Biesiadowski" <[EMAIL PROTECTED]>
To: <[EMAIL
Title: RE: [JAVA3D] bad striped appearance--where's W-Buffering?
Classic z-buffer problem. A few things to do. The post about the clipping plane was right--the narrower your clipping plane, the more precise z-buffering will be. Increase your near plane, decrease your far plane.
The actually
Title: RE: [JAVA3D] bad striped appearance--where's W-Buffering?
-Original Message-From: Discussion list for Java 3D
API [mailto:[EMAIL PROTECTED]]On Behalf Of Smith,
DanielSent: Thursday, May 02, 2002 8:18 AMTo:
[EMAIL PROTECTED]Subject: Re: [JAVA3D] bad striped
appearanc
hi all,
can I apply two differents textures on the both sides
of a shape 3D?
does I need to make two shapes and place them back to
back?
or anyone have a better solution ?
Thanking you in advance for your help.
Renaud
___
Do You Yahoo!?
Hi all,
i'm collecting the inconsistencies that happened during migrating my app
from 1.2.1_03 to 1.3 beta2.
1) sometimes i get the message
resetCachedTargets: unmatched length!1 0
can somebody tell me what this message could be related to;
it happens during my Shape3D cleanup and i'
Olivier,
Are you using j3d1.3beta2 ? If yes, this is regression bug ?
It looks more like an winding order problem, but we're happy to look into
it if you've a test program for us.
thanks,
Chien Yang.
Java 3D Team.
> Date: Thu, 02 May 2002 15:00:09 +0200
> From: Olivie
Karsten,
Thanks for the valuable feedback. We'll go thro. the list and get
back to you ASAP.
It is a short beta. We would like to have all feedback incorporated
within the next four weeks, so that we may quickly move to FCS. Any test
program that reproduce bug is greatly appreicate
Hi Olivier:
I encountered similiar Appearance problem with the
latest j3d1.3beta2 (OpenGL) version.
However, if you download the DirectX version of Beta2,
the problem will go away.
If you can pay attension to these "missing" surfaces, they
are not really missing, they ar
Until you fix your FAQ, can you tell us what Z-buffer tearing is?
Thanks.
> > What is the cause? And what is the best way to insure it
> doesn't happen?
>
> Classic case of Z-buffer tearing.
>
> I thought I had a question about this in the FAQ, but can't
> seem to find
> it. Must fix
>
There was movement at the station
for the word had got around
that the colt from Old Regret had got away
That's the situation we find ourselves in now with Xj3D. J3D 1.3
contains way too many fixes for issues that we were running into. We're
at the point of having to require a beta version of the
FYI,
This ParserDB has just been updated to match the Java3D 1.3 beta 2 API.
Rgds
Paul
>Hi Sharon,
>
>The code completion Parser database for the Forte and Netbeans IDE is available
>at http://java3d.netbeans.org/source/browse/java3d/release/system/ParserDB/
>
>Rgds
>
>Paul
>
>
Mike,
Basically it's two surfaces close to each other and the z-buffer not
having enough resolution to properly determine which surface should be
visible.
There are three ways (that I know of) to address this:
1) Make sure all of your objects have a reasonable amount of distance
between them (th
I want to draw on the canvas3D (ovelay information,
hopefully semitransparent) I did a lot of research on this a while ago,
and everything I tried dropped my framerate from ~70 to ~15. I ended up
making floating JWindows above the frame with the Canvas, but I don't really
like this approac
Hi,
FYI bug 4678251 - Texture Transform fail under OrderedGroup
is filed for this.
Thanks for the test program.
- Kelvin
Java 3D Team
Sun Microsystems Inc.
>Date: Tue, 30 Apr 2002 13:20:04 -0600
>From: Raj Vaidya <[EMAIL PROTECTED]>
>Subject: [JAVA3D] J2SDK1.4.0 & Java3D1.3
I just downloaded Java3D Beta2 and this bug is still appearing in my application. Will
this be fixed in the next release?
Sean
> -Original Message-
> From: Kelvin Chung [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, February 28, 2002 7:02 PM
> To: Sean Sylvis
> Cc: [EMAIL PROTECTED]
> Su
I would like to "record" the canvas while my application is running. So, in the
postSwap method of my subclassed Canvas3D class, I read the raster from the graphics
context, then get the buffered image from the raster (Raster.getImage().getImage()). I
then store this BufferedImage in an array s
Hi Olivier,
I try the test program if I do
app0.setTransparencyAttributes( new TransparencyAttributes(
TransparencyAttributes.BLENDED,
0.7f));
the program works fine but if I do
app0.setTransparencyAttributes( new Transpare
Hi Peter,
This is the current collision behavior that we implement.
Since we must get a collision entry event in order to get a collision
exit event form the same target. Also in current implementation
WakeupOnCollisionEntry will not get another event until it
exit from collison state.
Yes it
Please dont send 300kb files to the entire list, only send it to those
people who
are interested in it. Don't assume that your file is so special we all need
to have
it in our mailbox.
- Original Message -
From: "Olivier Tassy" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday,
Hi GB,
>
>Thank you for your instruction. I checked the PureImmediateStereo.java file
>and found that the line:
>public static String defaultSharedStereoZbuffer = Boolean.TRUE.toString();
>
>is there correctly.
Please also try setting defaultSharedStereoZbuffer to FALSE
if your card did support
Hi Scott,
Your program set point antialiasing to true
even though only surface is drawn
pointAttrib.setPointAntialiasingEnable( true );
APP_SURFACE.setPointAttributes( pointAttrib );
In v1.3 beta2 we have bug which classify the
surface as transparency and render in the
transpare
Hi,
>
> For what it's worth, I reinstalled Java 1.3.1_03 and J3D 1.2.1_04 (OpenGL)
> and the JVM "cores" when the stereo mode is enabled with my GeForce4 Ti
> 4400.
>
> I know that those of you at Sun are unlikely to spend any time with
> J3D+nVidia stereo compatibility, but thought a "core dump"
Hi everyone
My app throws the exception below, apparently for no obvious reason. Sometimes I get
this exception right after changing View transformations, but other times I don't even
touch transformations and exceptions arise the same way.
My scene graph has lots of Views and usually I'm using
Hi Sean,
I just double check and the fix is integrated. We are using
our internal J3DGraphics2D test program with GL_EXT_abg disable.
The bug appear in v1.3 beta1 using texture mapping
(i.e. -Dj3d.g2ddrawpixel=false which is default under windows)
but not in v1.3 beta2.
I've a few questio
Hi,
Seem to me the swing fail to deliver "paint()" event to the
heavyweight Canvas3D. Mixing heavy and light weight component
in Java is known to be problematic.
Try to use the switch
java -Dsun.java2d.noddraw=true yourApps
(which is required to use JDK1.4 fullscreen API with
DirectX version
Hi,
during the last few weeks I tried to use Java3D to create stereo vision
3D applications on various platforms. This posting summarizes my experiences
and
I hope they are useful to others.
Ciao,
Carsten
Setting 1:
* Intel Pentium,
* Asus V8200 (Geforce 3 T5)
* Windows 2000,
* JDK 1.4.0,
* Ja
> Date: Fri, 3 May 2002 10:19:05 +1000
> From: Carsten Friedrich <[EMAIL PROTECTED]>
>
> during the last few weeks I tried to use Java3D to create stereo vision 3D
> applications on various platforms. This posting summarizes my experiences and
> I hope they are useful to others.
> [...]
>
Hi,
My volume rendering code that uses Texture3D class works with Java 3D 1.3
beta 1 but not beta 2. The output of the console is attached. Any tips?
Kovalan
wglCreateContext Failed: The handle is invalid.
wglMakeCurrent Failed: The handle is invalid.
extensionStr == null
wglCreateContext Faile
Hi Kovalan,
Can you run HelloUniverse in your machine ?
If you using multiple monitor, try disable the other one.
(No such problem using DirectX version of Java3D)
Make sure you are using v1.2 beta2 since I know this
happen with the combination of Java3D v1.2.1 and JDK1.3.1.
Also please tel
Hi Kelvin:
Thank you for your instructions.
>Please also try setting defaultSharedStereoZbuffer to FALSE if your card
did support separate z buffer for stereo.
I did it and did not find any improvement.
> Seems like the eye glass did not sync well in PureImmedate mode.
I don't think it is t
Hi list members,
From: "Mark Hood" <[EMAIL PROTECTED]>
> From the nVidia web site, it appears that the way the stereo driver works is
> that it recognizes the application being run and configures itself to that
> application. The driver apparently has an application database ...
> ... Most of
Hi,
I experienced exactly the same thing using beta1.
My problem was that I was using the javaw command
instead of the java command.
Please test the program running both the javaw and
the java command, to see if it is truly the same problem.
Look in the 'Bug in Java 3D' mailing from 2nd of apr
Ahm, what is the difference between these parsers DB and those I can create
myself with NetBeans by selecting the jar and then Tools->UpdateParserDB??
- J
> This ParserDB has just been updated to match the Java3D 1.3 beta 2 API.
>
> >Hi Sharon,
> >
> >The code completion Parser database for the
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