Re: [JAVA3D] multiple view question

2000-11-30 Thread Wim Snoep
Doug, Thanks for your help but what do you mean with sharing of geometry references ? You mean working with the shared group - nodes ? And then creating different universes with links to the subgraphs I want per view ? Thanks in advance, Wim [EMAIL PROTECTED]@[EMAIL PROTECTED] on 11/29

Re: [JAVA3D] Again releasing memory problem

2000-11-30 Thread Ingo Brunberg
Hi Ruopeng, this was discussed on this list about two weeks ago. I promised to summarize my experiences, so here is what you probably shoul do. First of all, you should use Java 3D 1.2.1b1. Unfortunately this means you are restricted to Windows and Solaris platforms for now. Then you should use t

[JAVA3D] dowloading java3d

2000-11-30 Thread Abdelkader Dendane
Downloading java3d-1_2-win-openlg_sdk.exe from the internet. I have downloaded java3d-1_2-win-openlg_sdk.exe fron the internet at work to put it in my computer (at home, window 95) that has jdk1.3 . When trying to run the exe file , it gives the following error message: "PackageForTheWeb Error"

Re: [JAVA3D] dowloading java3d

2000-11-30 Thread Víctor
It may be corrupt, but anyway be carefull is a typical error when you are infected by a virus, too. Víctor Abdelkader Dendane wrote: > Downloading java3d-1_2-win-openlg_sdk.exe from the internet. > > I have downloaded java3d-1_2-win-openlg_sdk.exe fron the internet at > work to put it in my c

Re: [JAVA3D] Newbie

2000-11-30 Thread Dev Nisar
Hi Paul, Thanks for your link and advice.  I know that 12 days is really less, but I belive where there is a will there is a way.  And with advices pouring in, I am finding myself more enthusiastic and directed. Dev.  >From: "Dipl. Ing. Paul Szawlowski"<[EMAIL PROTECTED]> >Reply-To: Discussion li

Re: [JAVA3D] Newbie

2000-11-30 Thread Dev Nisar
John, Thanks for your advice.  Dev. >From: John Wright<[EMAIL PROTECTED]> >Reply-To: Discussion list for Java 3D API<[EMAIL PROTECTED]> >To: [EMAIL PROTECTED] >Subject: Re: [JAVA3D] Newbie >Date: Wed, 29 Nov 2000 16:32:16 -0600 > >Dev, > >If you have a hard deadline of 12 days I'd say forget Ja

[JAVA3D] BSP, Switches, Memory and Performance

2000-11-30 Thread Yazel, David J.
We are starting to get to the point where our scenes are complex enough that we are seeing poor framerates even on top end cards. Since our scenes can have an almost arbitrary complexity we need to be "smart" about what we show the user and what we don't. Java3d currently does view fulst

Re: [JAVA3D] Memory Leak?

2000-11-30 Thread McCall, Jonathon D
More information: It appears that this NOT a problem under the DirectX version of Java3D. -Original Message- From: McCall, Jonathon D Sent: Wednesday, November 29, 2000 9:28 AM To: [EMAIL PROTECTED] Subject:Memory Leak? I'

Re: [JAVA3D] BSP, Switches, Memory and Performance

2000-11-30 Thread Mark Ferneau
David, We are using switch nodes in our application, though I can't say what the performance impact has been between using them and not using them. In our application we have a variety of locations in which certain collections of objects in the scene will not be scene. We have created a list of

[JAVA3D] Compressed geometry problems.

2000-11-30 Thread Adam Tegen
Hello-   I'm trying to use compressed geometry for J3d.  On some of the input, it works just find, and on some of it, it dies.  I have reduced the problem to the following piece of code:   save(GeometryInfo geomInfo){     try    {     GeometryInfo[] geomInfos = new GeometryInfo[1];

Re: [JAVA3D] BSP, Switches, Memory and Performance

2000-11-30 Thread Paul Byrne
HI Dave, I've written an example app which uses Switch nodes in the way you describe. My motivation was to render a set of geometry with more triangles than the hardware could cope with and maintain a reasonable frame rate. I broke the geometry up into a set of tiles, each under a Switch node. I

[JAVA3D] Table data autometic scrolling ticker applets..

2000-11-30 Thread fau k
Hi all, Please let me know any one have solution for this problem.. My problem is: 1) I want to take data from a table.. by use jsp... It's ok.. there is no problem.. 2) after that I want to display this information in Autometic virtical scrolling ticker applet .. with 4 rows at a

Re: [JAVA3D] BSP, Switches, Memory and Performance

2000-11-30 Thread Yazel, David J.
I currently do a "rough" culling at the terrain level, the specific situation I am talking about is in "town". It does not take many houses before the frame rates start to drop sharply. So my thought was to consider cities and towns to be special cases of a large, controlled static environment a

Re: [JAVA3D] BSP, Switches, Memory and Performance

2000-11-30 Thread Shawn Kendall
Sounds like some good stuff you working on! :-) One thing about the "per Shape3D culling in Java3D... In most Scene Graph API's and as I understand it in Java3D, it's not really per Shape3D, it's per BoundingBox or Sphere at the Group/Node level.  So if a particular Group that contains allot of no

[JAVA3D] 3D co-ordinates

2000-11-30 Thread Tina Manoharan Valappil
Hi all, When I move the mouse on my sceen I want to display the (x,y,z) co-ordinates on my scene on the status bar. I tried to do it this way, but it doesnt seem to give me the right position. Since my object is placed at (0.5, 0.0, 0.0), but then it gives

Re: [JAVA3D] multiple view question

2000-11-30 Thread Doug Twilleager
No, the Geometry object that is refered to by the Shape3D node may be refrenced from multiple Shape3D's and across universes. That is true of any NodeComponent object. So, even though you have duplicate scene graphs in each universe, the NodeComponent's (where most of the memory resides) may be

Re: [JAVA3D] Again releasing memory problem

2000-11-30 Thread Kelvin Chung
> >this was discussed on this list about two weeks ago. I promised to >summarize my experiences, so here is what you probably shoul do. >First of all, you should use Java 3D 1.2.1b1. Unfortunately this means >you are restricted to Windows and Solaris platforms for now. Then you >should use the rem

Re: [JAVA3D] Memory Leak?

2000-11-30 Thread Kelvin Chung
>MIME-version: 1.0 >Date: Thu, 30 Nov 2000 08:46:55 -0800 >From: "McCall, Jonathon D" <[EMAIL PROTECTED]> >Subject: Re: [JAVA3D] Memory Leak? >To: [EMAIL PROTECTED] > >More information: It appears that this NOT a problem under the DirectX version >of Java3D. > That good news. So it is the OpenGL

Re: [JAVA3D] BSP, Switches, Memory and Performance

2000-11-30 Thread Doug Twilleager
There have been a few good suggestions already, here are a few more. The application can always help Java 3D by doing some rough culling at the scene graph level. A while ago I wrote Quake2 and JediKnight loaders on top of Java 3D and used their extra visibility data structures to do some scene g

Re: [JAVA3D] dowloading java3d

2000-11-30 Thread Paul Pantera
> Date: Thu, 30 Nov 2000 14:40:56 +0300 > From: Abdelkader Dendane <[EMAIL PROTECTED]> > Subject: [JAVA3D] dowloading java3d > To: [EMAIL PROTECTED] > > Downloading java3d-1_2-win-openlg_sdk.exe from the internet. > > I have downloaded java3d-1_2-win-openlg_sdk.exe fron the internet at > work to p

[JAVA3D] CAVES & REALITY ROOMS

2000-11-30 Thread Giuseppe Conti
Hi Manuel, I'm a PhD at Strathclyde Uni, Glasgow. We don't have a CAVE but we have a Reality Room with 3 Barco projectors (http://www.vision.strath.ac.uk/vision/faci.html) so probably we might be sharing the same set of problems. We have installed j3d 1.1.3 and SDK v 1.2.2 (for SGI IRIX) on a 1

[JAVA3D] binary file format?

2000-11-30 Thread Thomas Bendig
Hi, I read somewhere, that there will be a first implementation of a binary Java3D file fomat in the actual beta, but until now i did not find something. Is something like that included? perhaps in a util class? If not, when will we see such things?   Thanks. Thomas.   [EMAIL PROTECTED] htt

[JAVA3D] Netscape Browsers

2000-11-30 Thread Ben Arbel
Hi J3D guys   my problem isn't related directly to J3D but I guess that this group knowledge base can help me, I have a J3D applet , the html file for this applet is attached. for some reason when I try to run it under Netscape it asks me to d/l the java plugin (I installed Netscape without

Re: [JAVA3D] binary file format?

2000-11-30 Thread Paul Byrne
Thomas, There is no Binary file format in Java3D 1.2.1 However we are working on a prototype binary opaque file format and API which will be released seperately (as a demo) from Java3D in the 1st quarter of 2001. The API will rely on Java3D 1.2.1 BUT is not part of the 1.2.1 release. Rgds Pau

Re: [JAVA3D] Compressed geometry problems. Puzzling...

2000-11-30 Thread Adam Tegen
After hours of debugging I having quite figured it out yet.  However, if I call GeometryInfo.compact() I don't get the exceptions anymore.  The geometry seems VERY quantized to the point were the gaps between surfaces are very noticeable.  I tried turning the coordQuant to 16, but that made

Re: [JAVA3D] Compressed geometry problems. Puzzling...

2000-11-30 Thread Shawn Kendall
I have a quick question about Compress Geometry. In know that the memory/file footprint is reduce when using CompressedGoemetry. The question I have is, what is the performance effect?  Does it increase performance, because there is less to process, or does it reduce performance because it has to d

[JAVA3D] Multi-player net games -- 'Tank Maze' ?

2000-11-30 Thread Rohit Kumar Mehta
  Hi,  I have been working on a networked tank simulator game using Java3D for quite some time. I am hoping to complete the project before 2001, and I expect  to be finished with a basic functional view which processes updates through interpolators by Monday, 4th. I am not a Java3D master, and wa

Re: [JAVA3D] Compressed geometry problems. Puzzling...

2000-11-30 Thread Adam Tegen
I am using it to save to a file.  It does a LOT more than float conversion.  It quantizes positions, normals, and colors.  It performs connectivity compression.  Among other things.  I am using it to make a small file format.   Hope that clarifies.   Adam -Original Message-From:

[JAVA3D] Mouse-based rotation: different methods reviewed? Researched?

2000-11-30 Thread Randy Smith
We want the user to roll an object about its center using the mouse (no translation). There are many ways to do this (e.g., the Java3D utility class MouseRotate encodes one possible scheme.) For our application certain ways of mapping mouse motion to object orientation may be better than others.

Re: [JAVA3D] Compressed geometry problems. Puzzling...

2000-11-30 Thread Shawn Kendall
I realize it does more than float conversion! :-) Perhaps I should have tagged on an etc... Just didn't feel like typing much! So, any ideas on performance effects? Adam Tegen wrote: 00ff01c05b1e$712a06a0$[EMAIL PROTECTED]"> I am using it to save to a file.  It does a LOT more than float convers

Re: [JAVA3D] Again releasing memory problem

2000-11-30 Thread R Wang
Thank you guys for your reply. Unfortunately I'm not able to use 1.2.1beta (under linux). Does that mean I can't solve the problem at all? === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the mes

[JAVA3D] Why got these messages?

2000-11-30 Thread R Wang
Hello friends, I constructed lots of GeometryInfo object in my java3d program. When I run it, I got many of such kinda messages: Numerics.isConvexAngle: Not inPointsList -1 -1 -1 Numerics.isConvexAngle: Not inPointsList -1 -1 -1 Numerics.stableDet2D Not inPointsList 0 -1 -1 Numerics.stableDet2D N

Re: [JAVA3D] Why got these messages?

2000-11-30 Thread Kelvin Chung
Hi Ruopeng, This debug message is output from the utility package com/sun/j3d/utils/geometry/Numerics.java Bug 4394017 has been filed for this. Since the source code of utility package is availble in the SDK, you can temporary remove this by editing the above file and recompile the utili

Re: [JAVA3D] Compressed geometry problems. Puzzling...

2000-11-30 Thread Mark Hood
> Date: Thu, 30 Nov 2000 16:55:34 -0500 > From: Adam Tegen <[EMAIL PROTECTED]> > > After hours of debugging I having quite figured it out yet. However, if I > call GeometryInfo.compact() I don't get the exceptions anymore. The > geometry seems VERY quantized to the point were the gaps be

Re: [JAVA3D] Multi-player net games -- 'Tank Maze' ?

2000-11-30 Thread Mark Childs
Dear Mr. Mehta     I too am interested in a Java game on the premise of "Risk" called "Armageddon" complete with continents, countries, armies, tanks,air and Naval support and Politics whereupon the player can get an overview and/or play "fighter Pilot" ect. With 3D artists. I'm looking for

Re: [JAVA3D] Why got these messages?

2000-11-30 Thread Chien Yang
Ruopeng, Receiving this message signal that j3d utility isn't quite happy with the geometry. Can you send us a test program to reproduce it ? - Chien Yang Java 3D Team. > Date: Thu, 30 Nov 2000 15:57:28 -0800 > From: R Wang <[EMAIL PROTECTED]> > Subject: [JAVA3D] Why got these messages

Re: [JAVA3D] Compressed geometry problems. Puzzling...

2000-11-30 Thread Mark Hood
> Date: Thu, 30 Nov 2000 17:19:56 -0500 > From: Shawn Kendall <[EMAIL PROTECTED]> > > I have a quick question about Compress Geometry. In know that the > memory/file footprint is reduce when using CompressedGoemetry. > > The question I have is, what is the performance effect? Does it incr