Re: [JAVA3D] Manipulation of live scenegraph

ya, adding a branch group is possible but my problem still remains I do not want to keep on creating new BranchGroups Is it not possible to directly add a new TransformGroup to live Branchgroup saurabh - Original Message - From: Paraskevas Orfanides <[EMAIL PROTECTED]> To: <[EMAIL PROT

[JAVA3D] lightwave exporter for max

Is there an exporter (shareware) for max available? Thanks === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECT

Re: [JAVA3D] Manipulation of live scenegraph

Just create a new Branchgroup. Add your TransformGroup or Shape3D as a child to the Branchgroup. Then add the branchgroup to the Scene. I hope this helps, Paraskevas --- Saurabh Akhauri <[EMAIL PROTECTED]> wrote: > I was experimenting with manipulation of > live scenegraph and came across this

Re: [JAVA3D] About vectors

The starting point is (0,0,0). The parameters are the end point. --- "Jonathan Albert C. Vallar" <[EMAIL PROTECTED]> wrote: > Hi! Sorry, I was talking about the vector3d objects or any vector objects > for that matter. > > I would like to ask if the parameters in the vector object will be the >

[JAVA3D] Manipulation of live scenegraph

 I was experimenting with manipulation of live scenegraph and came across this problem   even after setting the capabilities addition of a TransformGroup or Shape3D object to live scenegraph was not possible   every time the exception thrown is " only a Branchgroup object can be added "  

Re: [JAVA3D] About vectors

Hi! Sorry, I was talking about the vector3d objects or any vector objects for that matter. I would like to ask if the parameters in the vector object will be the starting point for the vector and what direction will that vector point to? Thanks! Sorry for the inconvenience!

[JAVA3D] Looking for VR Halden Person

Sorry for the public announcement here. I was chatting with a guy from the Halden VR centre in Norway last week at the Web3D conference in relation to code for j3d.org. I was given a website address that is not working. Unfortunately all my business cards got mixed up on the flight on the way hom

Re: [JAVA3D] Java 3D's Collision Detection

on 2/27/01 12:56, John Wright at [EMAIL PROTECTED] wrote: > forthright with you. It's not surprising though as Java 3D "feels" just > as you described... it's an aquired skill... you either bash your own > way through it or pray you have a more experienced person to help show > you the ropes. I

Re: [JAVA3D] Stereo rendering on a PC...

> MIME-Version: 1.0 > Date: Tue, 27 Feb 2001 15:41:02 -0500 > From: "Kelly, Jonathan" <[EMAIL PROTECTED]> > Subject: [JAVA3D] Stereo rendering on a PC... > To: [EMAIL PROTECTED] > > Hi everyone, > > Can anyone tell me if Java 3D v. 1.2 supports stereo rendering on a PC? I > know that v. 1.1 of th

Re: [JAVA3D] Java 3D's Collision Detection

Justin Couch wrote: > > > Ah, but this demonstrates my point. Are you using WakeUpOnCollisionEntry > events for your terrain following? Using pick utils for your own custom > collision detection is not the same thing. Using PickUtils is very > different to using the behaviour system, which is sup

Re: [JAVA3D] Java 3D's Collision Detection

I might as well throw in a few more things... :-) Java3D is a Real-Time 3D Graphics Scene Graph API. Most problems I see out there fall into several categories 1) The developers are not familiar with 3D Graphics Scene Graph systems. Andrew Barras and myself came to Java3D from SGI Performer-lan

Re: [JAVA3D] Java 3D's Collision Detection

John Wright wrote: > Java 3D does suffer from an incredible lack of documentation (I'd say > the same thing about Java in general). For general Java, I would say that it is less widespread. For example, most people will understand basic swing, awt or sockets. Ask them how URL content handlers wo

Re: [JAVA3D] Java 3D's Collision Detection

Shawn Kendall wrote: > > > Yes, you and everyone else. For all intents and purposes, J3D's > > collision detection system is useless. > > I have to disagree with this one. > We use the PickUtils with great success. > We just resently showed 3 different demos here, as of which used the > PickUtil b

[JAVA3D] Stereo rendering on a PC...

Hi everyone, Can anyone tell me if Java 3D v. 1.2 supports stereo rendering on a PC? I know that v. 1.1 of the API only supported stereo on Sun machines, but I'm unsure about v. 1.2. Thanks. > Jonathan Kelly > > === To un

Re: [JAVA3D] Java 3D's Collision Detection

I believe that many of us greatly appreciate what Sun has provided in Java 3D. I don't think Justin, myself or any of the other "veterans" mean any disrespect for the Sun engineers. The Sun engineers have been helpful and provide the best support I've seen for a product (I'd prefer to hear "that

Re: [JAVA3D] Java 3D's Collision Detection

> Yes, you and everyone else. For all intents and purposes, J3D's > collision detection system is useless. I have to disagree with this one. We use the PickUtils with great success. We just resently showed 3 different demos here, as of which used the PickUtil based collision. One of those includ

Re: [JAVA3D] Swing and Java3d thread priority conflicts

Great, thanks! -Original Message- From: Doug Twilleager [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 27, 2001 3:07 PM To: [EMAIL PROTECTED] Subject: Re: [JAVA3D] Swing and Java3d thread priority conflicts Effectively, it is when any Java 3D object is created. We are using a stati

Re: [JAVA3D] Java 3D's Collision Detection

Doug Twilleager wrote: > > We would love to supply lots of documentation for all things > related to Java 3D (internal or external), but there are only > so many hours in the day. What, I thought Henry had changed the laws of physics for you guys? :) > has been working on Java 3D since 1.0. So,

Re: [JAVA3D] Swing and Java3d thread priority conflicts

Effectively, it is when any Java 3D object is created. We are using a static constructor on our thread scheduler to get the default value. To be safe, set it yourself. When you set it, it should take effect immediately on all Java 3D threads. Doug. >MIME-Version: 1.0 >Subject: Re: [JAVA3D] S

Re: [JAVA3D] Swing and Java3d thread priority conflicts

>From VirtualUniverse.setJ3DThreadPriority(): Sets the priority of all Java 3D threads to the specified value. The default value is the priority of the thread that started Java 3D. Doug. >X-Accept-Language: en >MIME-Version: 1.0 >Content-Transfer-Encoding: 7bit >Subject: Re: [J

Re: [JAVA3D] Java 3D's Collision Detection

Doug Twilleager wrote: > > The API for Java 3D Collision support is mostly found in the behavior > wakeup condition documentation. The collision support in Java 3D was [here's another page for j3d.org ] :) Boy, this is a fulltime job keeping up.. -- Justin Couch

Re: [JAVA3D] Java 3D's Collision Dectection

Hi, >Where could I find some sample source of Collision Detection Algorithm with >picking system? Current implementation use each Shape3D bounds to build an hierachical tree. So the default USE_BOUNDS intersection should be quick. You can also set your own Collision Bounds instead of Java3D aut

[JAVA3D] Canvas 3D changes

I all, I have an application which i run using java3d and 1.2 jdk1.3, i have a Canvas3D put in a JinternalFrame. How can I implement changes in Canvas 3D from a button of other Jframe (addChild for example)? Please help. Thanks. ===

Re: [JAVA3D] Java 3D's Collision Detection

We would love to supply lots of documentation for all things related to Java 3D (internal or external), but there are only so many hours in the day. I think many people would agree that the feature set and quality of Java 3D has increased dramatically over the past 2 years. As for our software e

Re: [JAVA3D] Swing and Java3d thread priority conflicts

"Yazel, David J." wrote: > > Thanks Doug.. another good one for the FAQ (hint Justin) [*sigh*] You like keeping me busy don't you Dave... :) Actually, there is already a question in there very closely related on the speed issues page: 7. How can I stop 100% CPU utilisation? It doesn't include

Re: [JAVA3D] Java 3D's Collision Detection

You don't necessarily have to write your own collision detection stuff. There are many libraries that do this. Do a search in your favorite search engine for collision detection and possibly physics engines (the do this too). They may not be in Java and therefore you may end up having to use JNI

Re: [JAVA3D] Java 3D's Collision Detection

The API for Java 3D Collision support is mostly found in the behavior wakeup condition documentation. The collision support in Java 3D was intended to provide aynchronous notification of collision events. It can handle multiple collision "triggers" with multiple collision "reports". Inside Java

Re: [JAVA3D] Java 3D's Collision Detection

Ouch -Original Message- From: Justin Couch [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 27, 2001 2:22 PM To: [EMAIL PROTECTED] Subject: Re: [JAVA3D] Java 3D's Collision Detection Karen Dias wrote: > Can't a person get the source for Java 3D & if so, FAQ question #2 - simple answ

Re: [JAVA3D] Collision Detection in J3D 1.2.1 beta2

Hi Siau, We can reproduce this bug and Bug 4419555 - Collision detection for geometry is not accurate is submit for investigation. Thanks for your bug report. - Kelvin - Java 3D Team Sun Microsystems Inc. >X-Unix-From: [EMAIL PROTECTED] Fri Feb 23 21:47:12 2001 >X-Apparen

Re: [JAVA3D] Java 3D's Collision Detection

Karen Dias wrote: > Can't a person get the source for Java 3D & if so, FAQ question #2 - simple answer: no > what would be the > rational for hiding what the collision detection algorithm does? I'm a > robotics engineer and for my applications IT DOES MATTER what the collision > detection algo

Re: [JAVA3D] Swing and Java3d thread priority conflicts

Thanks Doug.. another good one for the FAQ (hint Justin) Well that makes me look at things differently. And to be clear, are we talking the creation of the Canvas3d, universe, or any Node? Its possible that I am setting the priority in the wrong place, as I think that method is in the universe.

Re: [JAVA3D] Swing and Java3d thread priority conflicts

The default thread priority for all Java 3D threads is the priority of the thread which "started Java 3D". What this means in reality, is that the priority is taken from the thread which creates the first Java 3D object. What you are probably seeing is different behavior based upon which of your

Re: [JAVA3D] Java 3D's Collision Dectection

Justin; Thanks for the info. I sent an email w.r.t this subject seconds before reading this, so if it sounds like I'm asking some of the questions you've answered, ignore them. Cheers, Karen Dias, ISE -Original Message- From: Justin Couch [mailto:[EMAIL PROTECTED]] Sent: Tuesday, Febru

Re: [JAVA3D] Java 3D's Collision Detection

Hi Justin & all others interested; Can't a person get the source for Java 3D & if so, what would be the rational for hiding what the collision detection algorithm does? I'm a robotics engineer and for my applications IT DOES MATTER what the collision detection algorithm does. At a given time I'

Re: [JAVA3D] Java 3D's Collision Dectection

Hi All, We are about to release a demo Java3D application "Sun Java3D(tm) Fly Through". This application allows users to load geometry from various formats (using some of the loaders available on www.j3d.org) and navigate around the model. The application includes an extensible view platform col

Re: [JAVA3D] JVM error/exception

Hi, One things to help us track down the problem beside a test case is using JDK1.3.1 beta instead of JDk1.3 to run Java3D. When there is problem in native code, jdk1.3.1 will print out detail stack trace and native call. Please send the information output by jdk1.3.1 to us if it happens. Curr

Re: [JAVA3D] Java 3D's Collision Dectection

"Illarramendi Amilibia, Aitor" wrote: > > Where could I find some sample source of Collision Detection Algorithm with > picking system? IIRC David Yazel and Shawn Kendall have both implemented this, so hopefully they might be able to help. I think they have been doing single body, not n-body work

Re: [JAVA3D] Stereo problem

> MIME-Version: 1.0 > Content-Transfer-Encoding: 7bit > X-Priority: 3 (Normal) > X-MSMail-Priority: Normal > Importance: Normal > X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 > Date: Mon, 26 Feb 2001 11:42:22 -0500 > From: Yohan Baillot <[EMAIL PROTECTED]> > Subject: [JAVA3D] Stereo pr

[JAVA3D] STEREO AGAIN

Paul, I am afraid that the documentation is too incomplete to answer your question. Iam using quad buffering capabilities which produce a frame sequential stereo signal. Does anybody from Java3D wants to answer mine and Paul questions, please? Thanks Yohan -- Dat

Re: [JAVA3D] About vectors

Hi Jonathan, Sugestion: Look at the "Pure Java" discussion list. http://forum.java.sun.com/list/16788242?d=591 Other sites and Tutorials about java: http://java.sun.com/docs/books/tutorial/java/TOC.html#nutsandbolts http://java.sun.com/docs/books/jls/first_edition/html/index.html http://java.sun

[JAVA3D] About vectors

Sorry!Maybe this is too elementary but I still would like to post this question: Are the points specified by the Martix objects the starting point for the vector?Where do tey point to? Thanks for entertaining my question! Jonathan __ www.edsamail.com

Re: [JAVA3D] Networked 3D Games... Java/Linux/Java : No MS. No BS. No Crashes.

Amazing how this sounds like propaganda... ;) "Those who hate capitalism, competition, freedom, the US, or our court system please don't reply to this thread" I love competition... which is why Java3D is even here. ;) Instead of this propaganda type "bulk-mail-looking" email, it would be nic

Re: [JAVA3D] Java 3D's Collision Dectection

Where could I find some sample source of Collision Detection Algorithm with picking system? I already use the standard behavior, and I use one Java pattern (supervisor) notying other objects when a collision is detected so I disable theirs behaviors. Anyways the standard collision behavior doesn´

Re: [JAVA3D] JVM error/exception

I get these crashes every once in a while, and they've happened with every version of J3D. Not sure of the address, but the invalid page fault part is familiar, and I'm using the OpenGL version. -Original Message- From: Shaun Shepherd [mailto:[EMAIL PROTECTED]] Sent: Monday, February 26,

Re: [JAVA3D] LocalToVworld transform and deriving from Node

Daniel Selman wrote: > (and SUN). Even more worrying is that this was an InvocationTargetException, > thrown by the reflection API. I find it extremely troubling that Java 3D > (high performance?) should be using reflection to invoke methods... If you look at the stack trace, it seems that the c

Re: [JAVA3D] Java 3D's Collision Dectection

Karen Dias wrote: > detection for complex worlds. I briefly looked on the net trying to > determine exactly what Java 3D does, didn't find anything significant. > Which collision detection algorithm does it implement and where can I read > about it? Sun's standard answer to this, and many other

Re: [JAVA3D] Java 1.3.1beta

Matthew Flagg wrote: > > Which JRE is that? My IBM 1.3 doesn't have that. Is that something new in > 1.3.1 or something only in Sun's? [snip] > Make sure you run with the -Xincgc command-line option. The -X options are specific for a given VM provider. They also change between versions. It is

Re: [JAVA3D] Stereo problem

Hi Yohan ! Yohan Baillot schrieb: > Hello, > > I just got stereo working for all my application on a graphics card > supporting > DirectX using the Direct3D version of Java3D. What I would like to know is, what stereo formats (above-below, quadbuffer, interlaced) are supported by Java3D ? I wo

Re: [JAVA3D] Help!

Hi Jonathan ! > How will a point and a vector generate another vector with the statement: >lk_vector.sub(look_to, location); The sub method take objects of type Tuplexx, which is the supertype of Vectorxx and Pointxx. Therefore you can subtract a Point and a Vector. Whats actuall happening is: