Thankyou for this mine of information!!
Ive actually just discovered the error im making may not be associated with
the location of the portfolio.jar file.
At present Im just trying to load in any-old thing that ive got off of the
web just to see if i can do it. Ive changed the .wrl file and the error goes
away!! I thought it may have been something to do with the associated files
that need to be in the same directory as the .wrl file, however removing
these does not re-produce the error.
I do feel that the error message is a tad misleading if it is infact a
corrupt .wrl file thats to blame rather than java not finding classes. (as
the error message suggests....)
Ill move on from here.
Thanks for your help, Ill check out these other loaders you have suggested
as well....
and thanks heaps also to Gregory Pierce for your efforts.
Cheers
A
----- Original Message -----
From: "P. Flavin" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, August 09, 2001 1:38 PM
Subject: [JAVA3D] VRML & Java3d: ncsa.j3d.loaders.vrml97.VRML, Sun/Web3d
VRML Loader, New x3d Loaders
> Java3d Reads & Renders VRML animations ...
> Java programmers can extend VRML objects with
> Java Objects for games & networked programs
> in powerful ways that not readily available to the users
> of the old VRML plug-in Viewers.
>
> I've done it, you can too ...
>
> Greetings ...
>
> I've used NCSA loaders, and the old reliable VRML Loaders
> developed at Sun and donated to Web3d, and have found the
> Loaders from Sun to be most capable ... the NCSA loaders
> didn't support texture mapping images or animations if I recall,
> though I still use some code from NCSA to create ".mov"ies
> from the VRML / Java3d animations ... with the Java JMF
> ( Java Media Framework ... video & streaming objects ).
>
> Adrian Meekings wrote:
>
> > Hello folks
> >
> > Does anybody recognise the error message generated by forte when trying
to execute code containing NCSA provided code?
> >
> > Im trying to get my code to import VRML objects using NCSA Portfolio. I
can generate class files (compiles fine )but when I try to execute it this
message pops up.
> >
> > Ive included a CLASSPATH pointing to the portfolio.jar file as the
documentation suggests (in the ..jre.lib.ext) although Im not exactly shure
why I have to do this when nothing else to do with my java installation
required a CLASSPATH variable.
> >
> > I didnt have any trouble with importing and using the StarFireExt.jar
(for importing 3ds)
> >
> > Any ideas??
> >
> > Cheers in advance
> > Adrian
>
>
>
http://archives.java.sun.com/cgi-bin/wa?A2=ind0108&L=java3d-interest&P=18724
>
>
> >
>
> First, could you describe ( and even better place on the web ) the VRML
> you're going to load & render ...
>
> No point in using the NCSA loaders if they are not up to the task,
> the VRML Loaders from Sun may be the better way to go.
>
> There are also some new Loaders currently developement ( x3d )
> which may be good enough for what your needs.
>
> Here are some examples ( VRML, Movies ) ...
> in part just to let you know it can be done, and that
> I know of what I speak:
>
> VRML Animated with Java3d : Make Movies, Play Games
> ------------------------------------------------------------
> http://www.frontiernet.net/~imaging/java3d_and_vrml.html
>
>
http://www.frontiernet.net/~imaging/shout3d/models/H-Anim/darts_animation_VR
ML.wrl
> http://home.rochester.rr.com/javajava/media/darts_animation_movie.mov
>
> VRML with Nurbs & Nipples : LOD Modeling with Panties
> ------------------------------------------
> http://www.frontiernet.net/~imaging/nurbs.html
> http://www.frontiernet.net/~imaging/shout3d/models/femTorsoNurbsGrid.wrl
> http://home.rochester.rr.com/javajava/media/fem_torso_nurbs.mov
>
> You ~~ CAN ~~ load & render VRML with PROTOs, Sensors,
> Animations, Textures ... Web3d's H-Anim Avatars.
>
> Some books say you can't, you can.
>
> We've been plagued by bad book & bad information.
>
> We need & deserve better books, some books are
> seriously flawed and we should be avoided ...
>
> This book is inaccurate, misleading & should be avoided:
>
> " Core Web3d " from Prentice Hall by Aaron Walsh.
> ========== ------------------
>
> Prentice Hall & Aaron Walsh are aware of the problem
> and don't seem to respect Java & VRML developers and
> our needs ( and a copy of this is going to Prentice Hall ).
>
> Web3d's VRML based H-Anim Avatars can be animated
> with Java3d and the good old VRML Loaders from Sun
> and college teachers and students should look forward to
> doing Human Animation with Java3d ( and with Java 1.1 )
> on September 1, 2001.
>
> They can, They Should.
>
> The only problem is that Aaron Walsh & Prentice Hall
> say you can't ... it's not true ... they are not sources of
> reliable information.
>
> Microsoft has already been found guilty of ~~ illegally ~~~
> using it monopoly position to destroy competing companies
> and technologies ( including Java ) and is planning on
> excluding Java from Windows-XP scheduled for an
> Octobler release ...
>
> Java Developers should not delay, we should show
> what can do, now, and SIGGRAPH, and on September 1
> in schools and businesses and homes across the country ...
>
> and that inclueds VRML Human Animation with Web3d's
> H-Anim Avatars which we can do today ...
>
> despite the false statements from Aaron Walsh & the
> books from Prentice Hall.
>
> For SDK's I mostly use Symantec, and I have and
> sometimes use Forte & Borland, currently on Windows
> but I'm dual booting with Red Hat Linux 7 and plan to
> go Linux full time when AMD gets down to 13 Microns.
>
> - - - - -
>
> At long last ... the Advantages of Java and Networking
> are becoming realized by those zapped by viruses and the
> other problems of the old, tire, closed, tethered desktop.
>
> Now we can play games on the Web, like Chess & Darts,
> safely, in a browser, without plug-ins, on Macintosh & Linux
> and other OSes ... with Java & VRML.
>
> Web Games: Chess & Darts with H-Anim Avatars.
> -----------------------------
> http://www.frontiernet.net/~imaging/H-Anim_Avatars.html
> http://www.frontiernet.net/~imaging/avatar_builder.html
>
> False statements hurt us and should not be acceptable, that
> they are accepted by large universities, some publishers,
> and the National Science Foundation is a shame, and a travesty.
>
> We should not accept that, and I will not.
>
> File Loaders for Java3D: the old VRML Loaders from Sun vs. the 'new'
> xj3d Loaders
> ----------------------------
> http://www.web3d.org/WorkingGroups/web3d-mpeg/hypermail/2001/0159.html
>
> Moral Failures & the "Couch - Beitler Flame War" Harm Web3d & Java3d
> ----------------------------------------------------------
> http://www.web3d.org/WorkingGroups/web3d-mpeg/hypermail/2001/0175.html
>
> Aaron, you can ban me from the mpeg-4 group: you're still wrong.
>
> Publishing False Statements to techies in the internet era is bad
> business.
>
> Java Developers aren't limited to the desktop or by crappy books.
>
> -- Paul, Java Developer & Web Animator.
> -----------------------------------------------
> "Imaging the Imagined: Modeling with Math & a Keyboard"
>
>
> ~~~ Prentice Hall ~~~ Please Reply :
>
> You have already been non responsive to my
> phone calls that alerted you to this problem:
>
> Aaron Walsh gets it wrong ~~ AGAIN ~~
>
> The "Core Web3d" book from Prentice Hall
> appears to incorrectly state that the VRML Loaders
> developed at Sun and donated to Web3d fail:
>
> | The "Human.wrl" file uses the naming convention
> | of the H-Anim standard. However, it does _NOT_
> | use PROTOs from that specification.
> |
> | This is because of some limitations in the VRML-97
> | class library which causes the joint centers to be in the
> | wrong loncation.
> |
> | Future versions of the class libarary may correct this
> | problem ...
> |
> from the Prentice Hall book "Core Web3d" ( p.658 )
>
> You can animate Web3d's H-Anim Avatars with Java3d:
>
> The __ "Core Web3D" __ book is wrong, don't buy it:
>
> | Core Web3D [ from Prentice Hall books ] by
> | ========= Aaron E. Walsh, Boston, Massachusetts
> | --------------- Mikael Bourges-Sevenier, France
> |
> | About the CD-ROM
> |
> | If you've been feverishly looking for the CD-ROM
> | that came with this book you'll be relieved to find that no,
> | you're not going mad:
> |
> | A CD-ROM is not included with Core Web3D.
> |
> | Instead, the source code listings, hyperlinks, and examples
> | found in this book are available online, free of charge,
> | through the __ Core Web3D web __ site at
> |
> | http://www.CoreWeb3D.com/.
> |
> | This site was created for you, the Core Web3D reader, and
> |
> | is updated regularly as important Web3D innovations occur
> | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> | (such as the emergence of X3D from the development process,
> | or new versions of the Java 3D API are released by Sun, for example).
> |
> | Here you'll also find links to a wide variety of Web3D resources,
> | including an online discussion group where you can share your
> | thoughts, comments, and suggestions about Core Web3D with
> | your fellow readers.
> |
> http://vig.prenhall.com/catalog/academic/product/1,4096,0130857289,00.html
>
> Here's their Java3d code for Human Animation:
>
> http://www.coreweb3d.com/code/13/
> http://www.coreweb3d.com/code/13/
> Listing%2013.3%20VView%20(Example%202).java
>
> Please judge Mr. Walsh & Prentice Hall books by
> the accuracy of this statment:
>
> " updated regularly as important Web3D innovations occur "
>
> and these " Java 3d " resources ( Just Two ! ):
>
> | Java 3D Tools
> |
> | Anfy: http://www.anfyteam.com/indexen.html
> |
> | About Web3d: http://web3d.about.com/compute/web3d/cs/java3d/index.htm
> |
> http://www.web3dgallery.com/java3d/tools/
> http://www.coreweb3d.com/tools.htm
>
>
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