I'm currently in the process of building a Java 3D game environment with
a user interface that is similar to the Maxis game "The Sims". I'd like
to have the users character walk towards any point on the Canvas3D object
that is clicked, but I'm can't figure out how to implement it. Basically,
the
Maybe you an try this: Split the rotation/translations (TG1) and the
scaling(TG2) into two seperate TransformGroups.
TG1 --- TG2 --- Object
|
--Text
Brian Eppert schrieb:
> How can I negate the scaling of a node by it's TransformGroup
> parents? I'd like to add a Text2D at t
Hi, Donald.
You must use the class PickCanvas.
This class has a method setShapeLocation(x,y), where x, y are the pixel
coordinate where the user made pick.
After that, you must use the method pick(), or pickAll(), or pickAllSorted()
and you'll get an object PickResult. From this PickResult you'll
Hallo,
Is this a bug by transparent texture with 'REPLACE' mode in Java3D?
The attached vrml file was used to test the transparent texture behaviour.
When
the texture attribute was set to 'REPLACE' mode in my java3d program, it was
rendered wrong. The six faces of the box were sorted incorrect
Hi Brian,
I am not some of theses geniuses but thinking about Text2D for some days
now.
Basically I had the problem that I needed to enlarge my labels, thats why
I ended up scaling the Text2D anyway. Today I was thinking about adding a
scale for my hole scene, except for my labels.
I have
BG ro
Leyland Needham wrote:
> My other qestion is about Morphs. Is performance affected by the total amount
> of morph targets in a Morph, or by the number of morph targets that are
> weighted above 0.0? My old engine was optimized by skipping morph
> calculations when the target was weighted at 0.0.
An excellent book I have been working with is "3D User Interfaces in Java3D"
http://www.manning.com/Barrilleaux/index.html.
-Original Message-
From: Discussion list for Java 3D API
[mailto:[EMAIL PROTECTED]]On Behalf Of Artur Biesiadowski
Sent: Thursday, April 05, 2001 11:29 PM
To: [EMAI
Hey Donald,
Check out the Glymp3D game here
http://www.hta-bi.bfh.ch/~swc/DemoJ3D/Glymp3D/ which has an example of this
behaviour.
Other demos are available at http://www.hta-bi.bfh.ch/~swc/DemoJ3D/
Gotta say I'm impressed with the quality of these students work. The
methodology and presentation
Is that project still active? I have sent query e-mails to Gregor and
Christian since last July and have never received a return e-mail. I do see
that their site has been updated though and it looks like they have made
progress. Is this for degree work?
Funny, I always expect that people doing
- Original Message -
From: Artur Biesiadowski <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, April 05, 2001 10:26 AM
Subject: Re: [JAVA3D] 3 Axis
> >
> > Hi!!
> >
> > I'm working on a game in which the user needs to move an object around
> > a 3D "room", allowing 6 degrees
Perhaps if everyone stopped using Microsoft email clients we wouldn't have
this problem! Please don't ban/stop attachements, they're very useful
in this list.
-John-
Josh Richmond wrote:
Personally I think attachments
are useful in this type of forum. Especially when a jpg is worth a hundred
l
Nope. I don't think there is any easy solution.
1. You would need to be calculate for every line segment whether it should
be shown. If this is a hidden line removal algorthim then it will not be
fun.
2. On every frame you would need to update your geometry to make the change.
One way you coul
"Yazel, David J." wrote:
> Funny, I always expect that people doing Java3d work would participate in
> the interest list, but then I see projects like this that are developed by
> people you never see here.
This is not obvious that this list is a good place. Some people try web
forums at sun sit
Hey Gang-
I am interested in the potential interplay between Java3D texture
mapping and the Java Advanced Imaging API (which is, by the
way, very cool). I am on the JAI Expert Panel and I can assure
you that there are some really nice features--especially the
networked image rendering and the pul
Dear all,
I have a 3-axis (x,y,z) graph under a branchgroup, I added a MouseRotate to
this branchgroup so that user can rotate the whole graph by their mouse. Now
I want to have a button to reset the graph so that for example, the xy-plane
is perpendicular to the view. How can I do it?
Thank you
Question:
I am placing the texturedSphere and the lines on top in a Decal Group. I have
set the capabilites of the texture to DECAL. The only problem is that I can see
the back of the globe. Is there anyway that I can tell JAva3D just to show the
lines that are visible to the viewer?
Thanks
Just make sure your virus
scanner is up to date (and I mean up to date as these days you need to
keep on top of it) and you should not have a problem. Norton picked up all
the current virus attachments from this list and I use outlook, which is an
incredibly useful PIM tool apart from just e
Alex Terrazas wrote:
> you that there are some really nice features--especially the
> networked image rendering and the pull imaging
> model that can be incorporated into Java3D.
Last time I looked at JAI (about 6 months ago) it still suffered from
the same underlying flaws that the core Java im
and then look what it does to these emails. That's impossible to read -
what font size are you using - 2 point? There's a really good reason why
HTML mail is really annoying (apart from the fact that I can't read it
in pine).
Virus scanning software is useless because you still have to download
t
Sorry-
Justin is correct. I meant to say that access to Java3D
from JAI would be through a RenderedImage and not
necessarily a BufferedImage. Sorry for the confusion.
The distinction is important.
Alex
Point taken...I actually meant to mention "common sense" as well, which sort of
dictates nowdays that you actually scrutinise the e-mails as well before opening
attachments.
Yes, Virus checkers are only as good as long as they are up to date. Fortunately
Nortan, Symantec etc are usually only 2
Hi Mike,
I use something like this for simple (non-behavior) animation:
public class Animator extends Applet implements ActionListener {
protected int counter = 0;
float z=0;
Timer timer = new Timer(100,this); //10 frames per second
public void actionPerformed(ActionEvent e ) {
counter++;
/
Oops. The whole point of DecalGroup is to disable depth buffering for
*coplanar* objects. Problem is that spheres are not planar to begin
with. That's a tough one. ;) In order to use DecalGroup you would have
to put each face of the sphere into it's own group, and split the lines
along those f
Thanks.
I need the polygons anyway. Well I'd like to be able to
turn them on and off - wireframe when rotating and dragging
on screen, etc. But both the lines representing the 'edges'
of the object, and the surfaces are supposed to be shown
in the 'normal'
Leyland,
The answer to your second question is j3d does skip over zero weight
morph targets in it computation.
- Chien Yang
Java 3D Team.
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Date: Thu, 5 Apr 2001 18:52:22 EDT
> From: Leyland Needham <[EMAIL PROTECTED]>
> Subject:
When I run my applet appear the error:
Verifier error .()V: Cannot find class
javax/media/j3d/Canvas3D
java.lang.VerifyError:
Thanks.
===
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the messag
Hi Chris,
The background problem should happen in OpenGL version only which
which glDrawPixels() (not accelerated by most PC hardware).
For directX version it is not a problem since we use
BltFast() to draw the surface (unless background image is change every frame)
To use Texture (instea
Hi Vahe,
From the line number, it seems you are still using Java3D v1.1.3
This bug ID 4403640 -
BoundingPolytope computeVertex() throws ArrayIndexOutOfBoundsException
is already fixed in v1.2.1 release.
Thanks.
- Kelvin
---
Java 3D Team
Sun Microsystems Inc.
>X-Unix-From: [EMAIL
> Thanks for the reply. What I would like to see is that when I select
> a new center of rotation, and then use the mouse to rotate,
> the view does not immediately re-center on (i.e., translate to) the
> new center of rotation.
> For example, consider points A and B shown in the view where A is
There's another method that might work but would not be very elegant. It's
possible to create a second decal from your original image that would have
the back-facing sections erased. This would require of course that you
update this modified decal when your world or viewpoint changed.
-Todd
--
Use the Project Properties menu choice (under the Project Menu),
click the Required Libraries tab, click Add, click New, name it
"java3d", click add (almost there...), navigate to your jdk (the one
where java3d is installed) select the jre/lib/ext directory and click
OK, click OK, click OK, and cl
Excuse my naivety here, but being a developer who's target audience will
be browser users, how would I set this property? Is it literally just a
system property of some sort? Do I do a setProperty("j3d.g2ddrawpixel",
"false") somewhere?
-Lee
> -Original Message-
> From: Kelvin Chung [m
Man this thing is amazing. so much work been done on Java3D in Europe and in schools
there. I dont know what Americans are doing? Drinking bud and partying? I have met so
many european students who are studying Java3D at there school. I dont know of any
Java3D class in state universities.
just
Has Sun (or anyone else) considered making an AudioDevice that uses
OpenAL? Or is OpenAL too beta for such an undertaking?
I would think OpenAL would be perfect for Java3D.
-Lee
J. Lee Dixon
SAIC - Celebration, FL
321-939-7917
[EMAIL PROTECTED]AOL: LeeOrlando
=
>MIME-Version: 1.0
>Date: Fri, 6 Apr 2001 14:56:14 -0400
>From: "J. Lee Dixon" <[EMAIL PROTECTED]>
>Subject: Re: [JAVA3D] DirectX problem??
>To: [EMAIL PROTECTED]
>
>Excuse my naivety here, but being a developer who's target audience will
>be browser users, how would I set this property? Is it li
At 12:23 PM -0700 4/6/01, Ahmed Shakil wrote:
>Man this thing is amazing. so much work been done on Java3D in Europe and in schools
>there. I dont know what Americans are doing? Drinking bud and partying? I have met so
>many european students who are studying Java3D at there school. I dont know
At 12:23 PM -0700 4/6/01, Ahmed Shakil wrote:
> Man this thing is amazing. so much work been done on Java3D in Europe
> and in schools there. I dont know what Americans are doing? Drinking
> bud and partying? I have met so many european students who are studying
> Java3D at there school. I dont k
I am in California, stuck in the primitive world of Autodesk, who hasnt yet figured
out which tool to use for developing platform independent software. Eventually the
answer is Java, but some people have the habbit of learning the hardway. And thats I
had my remarks about *Americans*; No Java3D
I've removed [EMAIL PROTECTED] from the alias, thus disallowing him
from posting any longer. If this was an innocent mistake, then that
should take care of it.
If he resubscribes and continue to send out viruses, I'll need to take
further action.
Rob Posadas
Manager, 3d Graphics Software
Sun
Although I did not answer your question, my ego enjoyed reading your
question. I just ignored the implicit sarcasm.
/**
* Kyle Wayne Kelly
* Computer Science Student
* University of New Orleans
* 504-391-3985
* http://www.cs.uno.edu/~kkelly
* Glory to God!
* El temor del hombre p
Hi--
I'm working on a 3D clickable interface, and I want to be able to create
spheres dynamically when the user clicks. Java3D doesn't let you add
children to live or compiled branchgroups. Is there some way around
this? Right now I have to create the spheres when I initialize the program
and
Hey folks, this question doesnt have to do anything with Java3D so far, but in future
it might. My company is deciding between Flash and Java. I need some strong facts to
prove that Flash is a bad decision and Java is the right tool. can someone help? I
dont know Flash so I cant even talk again
[EMAIL PROTECTED] writes:
>Hi--
>
>I'm working on a 3D clickable interface, and I want to be able to create
>spheres dynamically when the user clicks. Java3D doesn't let you add
>children to live or compiled branchgroups. Is there some way around
>this? Right now I have to create the spheres wh
Flash is supported in Macromedias Shockwave player, but Java also supports
flash, flash is more like a format (although I have heard people doing some
pretty extensive things in it, like making games).
Its like comparing VRML to Java3D, Java3D can load and use VRML data (with
the right loader), a
Hi Ahmed,
> Hey folks, this question doesnt have to do anything with
> Java3D so far, but in future it might. My company is
> deciding between Flash and Java. I need some strong facts
> to prove that Flash is a bad decision and Java is the right
> tool. can someone help? I dont know Flash so I c
Hi,
I used Java in the last 5 years and I just started learning Flash earlier
this year. IMHO,
It depends on what you want to do in your development. Java is a more
general
technology. You can do server side stuff, 3D, and other things. Flash is
more than
a file format. It is an ex
I don't know flash well either. There are certainly things one can do with
it that I have no knowledge about. But I've used it some and here what I
think:
Flash is faster and easy to implement, but it's limited. It offers some
interactivity (buttons, mouse_over, mouse_clicks, etc), but I doubt
I am currently developing some software with Java3D and want to use
trueSpace4.3 by Caligari for the content, but I need a content loader that
supports COB. The only one I know out there is NCSA Portfolio
http://www.ncsa.uiuc.edu/~srp/Java3D/portfolio/
However, this is not only a beta version it
Paul, I disagree.
Keeping your anti-virus software up to date will NOT protect you from
the worst virus problems. The viruses that have wreaked havoc across
the world have done so because they spread faster than the anti-virus
software could be updated.
Common sense is your BEST defense against
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