Re: [JAVA3D] Developing the Imposter

2002-01-08 Thread Chris Thorne
Hi Alex, sorry I did not see your original post. As Justin says I make available an open source terrain translator/generator in java. I am still at the stage of developing it into a general framework - getting the interfaces and design patterns sorted out - there will be an update this weekend (

Re: [JAVA3D] Developing the Imposter

2002-01-08 Thread Justin Couch
Alex Terrazas wrote: > I never heard back from anyone regarding > collaborating on some of these imposter > methods. Well, as always, I'm interested. If I have the time I'd be able to help out, but it just depends on other projects etc. In particular, if the code is headed in the direction of t

Re: [JAVA3D] Is it possible to show only outlines in wireframe mode?

2002-01-08 Thread Daniel Selman
Richard, I think the general answer for Java 3D is no. I believe there are hacks using Polygon offsets and duplicating your geometry (one wireframe, one solid rendered) and rendering both (you move the wireframe version a little closer to the viewer), but this is unlikely to be suitable for all c

Re: [JAVA3D] Particle systems are in

2002-01-08 Thread Daniel Selman
Justin, Ah yes. I forgot that one. I hard-coded the names for testing. I meant the texture name to be passed in through the environment Map: public ParticleSystem( int systemType, Map environment ) Create the Map key for the texture file name as a public static final in the ParticleSystem clas

Re: [JAVA3D] Is it possible to show only outlines in wireframe mode?

2002-01-08 Thread Richard Bragg
Does anyone know how I could get just the lines along the outermost outline of the entire polyhedron? For instance, consider a vertical cylinder. The approach described below would show the outline of the two circular faces, but there would be no vertical edges representing the body of the cy

[JAVA3D] Particle systems are in

2002-01-08 Thread Justin Couch
Folks, Just added Daniel's particle system code to the repository. Should mainly work, but a few minor things need cleaning up first (the basic geometry stuff uses explicit file name textures is the main one ATM). I'm working on getting examples and documentation up onto the site now. Javadoc sh

Re: [JAVA3D] Java 3D and Augmented Reality

2002-01-08 Thread Jack Gundrum
There was a AR demo at Siggraph last year using Java3D that was very impressive, see http://www.cs.columbia.edu/~blaine/ At 08:51 PM 1/8/2002 +0100, you wrote: >hi, > >augmented reality is a really cool topic of virtual >reality. here is a link to some info. hope it helps. > >http://www.cs.rit.

Re: [JAVA3D] Java 3D and Augmented Reality

2002-01-08 Thread Michael Knezevic
hi, augmented reality is a really cool topic of virtual reality. here is a link to some info. hope it helps. http://www.cs.rit.edu/~jrv/research/ar/ cu --- Raúl <[EMAIL PROTECTED]> schrieb: > Hello. I have no idea what Augmented Reality is. Can > you explain or > reference to me to this. Than

Re: [JAVA3D] Java 3D and Augmented Reality

2002-01-08 Thread Justin Couch
I wrote: > I don't know of anyone using it (at least none of the sites that I have > links to use it). The closest I've seen is the Flipcode work, but that > is still not AR (http://www.flipcode.com). err... oops. Getting brain messed up. (need morning coffee). Digiloop: http://www.hci.oulu.

Re: [JAVA3D] Java3D & Terrain (Was [JAVA3D] Developing the Imposter)

2002-01-08 Thread Justin Couch
Paul Byrne wrote: > Both my City demo and my implementation of ROAM a very early prototype code, > but if there is enough interest from the list I'll look into releasing the > source to j3d.org. Let me know if your interested.. I'd be happy to take it, on the condition that I can license i

Re: [JAVA3D] Java 3D and Augmented Reality

2002-01-08 Thread Justin Couch
Alex Terrazas wrote: > The more I think about it, the more it > seems that the Java 3D view model could > be very nice in augmented reality. I don't know of anyone using it (at least none of the sites that I have links to use it). The closest I've seen is the Flipcode work, but that is still no

Re: [JAVA3D] Raster objects problems

2002-01-08 Thread Kasparian, Raffi J.
Hi, Jorge,   Just a quick stab at the problem: in Graphics.drawString( String string , int x, int y ), y is the baseline of the text. You need to increase y by the height of your font.   Raffi   -Original Message-From: Jorge Guerra [mailto:[EMAIL PROTECTED]]Sent: Tuesday, January 08

Re: [JAVA3D] Java3D & Terrain (Was [JAVA3D] Developing the Imposter)

2002-01-08 Thread Alex Terrazas
Paul- I am definitely interested in seeing the code. Would you be willing to release it sooner rather than later. Maybe we can take a collective look at it. Thanks again-- Alex -Original Message- From: Discussion list for Java 3D API [mailto:[EMAIL PROTECTED]]On Behalf Of Paul Byrne S

Re: [JAVA3D] problem with getPixelLocationFromImagePlate()

2002-01-08 Thread Kelvin Chung
>Delivered-To: [EMAIL PROTECTED] >MIME-Version: 1.0 >Content-Transfer-Encoding: 8bit >Date: Tue, 8 Jan 2002 14:49:19 +0100 >From: Marco Fiocca <[EMAIL PROTECTED]> >Subject: [JAVA3D] problem with getPixelLocationFromImagePlate() >To: [EMAIL PROTECTED] > >Hello everybody, > >I have a problem with th

Re: [JAVA3D] Java 3D and Augmented Reality

2002-01-08 Thread Raúl
Thanks to you, Alex. - Original Message - From: "Alex Terrazas" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, January 08, 2002 8:53 PM Subject: Re: [JAVA3D] Java 3D and Augmented Reality > Augemented reality is a way of adding computer generated > elements over reality. M

Re: [JAVA3D] Java 3D and Augmented Reality

2002-01-08 Thread Alex Terrazas
Augemented reality is a way of adding computer generated elements over reality. Many people think of this in terms of vision but others do research in olfactory, sound, etc. For the visual domain, one can use see through glasses that have a layer of graphics over it. Boeing did an early demonst

[JAVA3D] Raster objects problems

2002-01-08 Thread Jorge Guerra
here's a picture of what I'm trying to do... I want to have the flat little boxes by the geometry entities display numbers. I'm trying to use Raster obects to accomplish this however I can't seem to understand the way in which I can draw to these Rasters There's a connection with drawing Imag

Re: [JAVA3D] Java 3D and Augmented Reality

2002-01-08 Thread Raúl
Hello. I have no idea what Augmented Reality is. Can you explain or reference to me to this. Thanks. Im so curious :-). and its sounds well. - Original Message - From: "Alex Terrazas" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, January 08, 2002 3:49 PM Subject: [JAVA3D] Jav

Re: [JAVA3D] rotate canvas3D (part 3)

2002-01-08 Thread Raúl
Can you be more explicite? (Detail your problem a bit more, thanks. and please you should include the latest post in the new in order to keep time searching it.) Regards. - Original Message - From: "SUBSCRIBE JAVA3D-INTEREST Anonymous" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Mon

[JAVA3D] Java3D & Terrain (Was [JAVA3D] Developing the Imposter)

2002-01-08 Thread Paul Byrne
Hi Alex, I've done some experimentation with terrains and Java3D. There are two areas you will need to consider for rendering a large terrain. 1) Reducing the number of triangles in the terrain to a level where the terrain looks correct (to some level of acccuracy) and

[JAVA3D] ParticleSystem progress 3

2002-01-08 Thread Daniel Selman
All, I'm just about to send the particle system code to Justin for inclusion on www.j3d.org. I think it's about at the Alpha/Beta stage and could use some testing and comments. I've attached another screen shot. In the screenshot you can see 3 particle systems interacting. The blue one is using

[JAVA3D] Locale.pickAllSorted

2002-01-08 Thread Denis Troller
I've been trying to have my objects seeing each other using the Locale.pickAllSorted method with a coneSegment objects, but it seems the objects are seen from too far away. It is as if my coneSegment had a greater height than what I want ( and the cone I give to the method has the correct pr

Re: [JAVA3D] Developing the Imposter

2002-01-08 Thread Daniel Selman
Alex, I would take a look at something like the ROAM algorithm to dynamically tessellate the landscape based on viewer position and performance. I don't know of anyone who has done this within Java 3D yet, so a good deal of prototyping may be in order. A friend of mine did use it using GL4Java ho

Re: [JAVA3D] Extensibility of Scene Graph IO API

2002-01-08 Thread Paul Byrne
Hi Jan, It sounds like you are taking the correct approach. If you can send me some sample code I'll take a look. Rgds Paul -- Paul Byrne Email : [EMAIL PROTECTED] Sun MicrosystemsPhone : (650) 786 99

Re: [JAVA3D] Developing the Imposter

2002-01-08 Thread Artur Biesiadowski
Todd J. wrote: > I seem to remember a Sun demo program (JCanyon?) that showed how to > handle extrememly large terrain maps using the NIO. It didn't come with > Java3D, but was released/demonstrated at SIGGRAPH maybe? I think that > would be a great place to get strategies for handling the larg

[JAVA3D] Java 3D and Augmented Reality

2002-01-08 Thread Alex Terrazas
The more I think about it, the more it seems that the Java 3D view model could be very nice in augmented reality. Still I haven't seen more than a few references to AR with Java 3D. Is anyone doing anything in this area? Let me know who's doing what in this area. Thanks-- Alex ==

Re: [JAVA3D] Developing the Imposter

2002-01-08 Thread Todd J.
I seem to remember a Sun demo program (JCanyon?) that showed how to handle extrememly large terrain maps using the NIO. It didn't come with Java3D, but was released/demonstrated at SIGGRAPH maybe? I think that would be a great place to get strategies for handling the large campus map. Maybe som

[JAVA3D] problem with getPixelLocationFromImagePlate()

2002-01-08 Thread Marco Fiocca
Hello everybody, I have a problem with this method. I want to have the projection of a Point3d from ImagePlate to java.awt coordinates, but I can't do this. I use an offscreen canvas and perhaps this is the problem; When I run this piece of code the result in p1out is (Nan,Nan) while I would expe

[JAVA3D] Developing the Imposter

2002-01-08 Thread Alex Terrazas
Hey- I never heard back from anyone regarding collaborating on some of these imposter methods. Anyway, I am prepared to go on and I hope others will join me or at least correct me when I am wrong. There is some possibility of making small academic money for helping with this. A little backgrou

[JAVA3D] Extensibility of Scene Graph IO API

2002-01-08 Thread Jan Becicka
Hi, I have question relative to extensibility of Scene Graph IO API. I'd like to use this API for scene graphs with my own SceneGraphObjects. I've created state objects for my SceneGraphObjects, but they are not used, although they are in proper package. I only get message: Could not find ...io.st

Re: [JAVA3D] Question concerning Dot3 Texturecombiner

2002-01-08 Thread Joachim Diepstraten
Hi Charmaine > > You mean I can't use TEXTURE_COLOR and PREVIOUS_TEXTURE_UNIT_STATE in one > > COMBINE? Or do I misunderstand something here? > > You can use TEXTURE_COLOR and PREVIOUS_TEXTURE_UNIT_STATE in one > combine. But you cannot use results from two texture unit states >