Re: [JAVA3D] Collision Detection in J3D 1.2.1 beta2

What I see is: The object did not collide and the collision detection(entry) is already triggered. By the way, I am using vrml loader. All my objects are loaded from the vrml file. Do you think that is the problem? > Current specification will not do collison avoidance, > so you may see the obj

Re: [JAVA3D] Collision Detection in J3D 1.2.1 beta2

Hi Siau, > >But I have 1 more problem. >How do I adjust the accurary of the collision detection? >I have tried using using the speedhint="USE_GEOMETRY" and hi-res coord >but both doesn't seem to improve the accurary. > >Is there other thing I could try? speedhint "USE_GEOMETRY" should do the tr

[JAVA3D] mouse and scene movement amounts not in sync

Hi: I have a set of objects in my scene and able to rotate, zoom, and move the objects using the mouse. However, the problem is that when I move the mouse by a large amount, the amount of zoom or movement in the scene is very small. What I want is a large mouse movement to correspond wit

[JAVA3D] Ack

In wrestling with the problem I posted below... I broke something and can't figure out what I did. For some reason the canvas3d is now painting over any system window that occludes it. This is true of any window, even if it is not owned by the application. How is this possible? Any clues? Dav

Re: [JAVA3D] VRML Browser programs

Thanks for your reply!I went to the metrolink webpage and downloaded the applet and a java code. Sir,how do I install this applet as part of the JDKpackage and JAVA3D API package.There's a makefile included that I do not know where to use.Thanks! Jonathan Discussion list for Java 3D API wrote

Re: [JAVA3D] Ack

Rebooting solved the problem Very wierd. The only thing I can think of is that I was experimenting with running in a JFrame instead of a JWindow, and when I changed it to go back to JWindow the problem surfaced. Mind you those were completely different runs. Dave - Original Message --

Re: [JAVA3D] Ack

Are you mixing heavy and lightweight components? Kyle Wayne Kelly Computer Science Student University of New Orleans http://www.cs.uno.edu/~kkelly - Original Message - From: "David" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, February 21, 2001 8:26 PM Subject: [JAVA3D] Ac

[JAVA3D] ToolTip on Canvas3D

Hi, Has anyone have implemented a tooltip (help bubbles) on a Canvas3D? Thanks, Kovalan === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general hel

Re: [JAVA3D] Java 3D - VRML - PHIGS

Bonjour. At first glance: Both Java 3D and PHIGS are programming interfaces for 3D graphics. PHIGS is more procedure-oriented: write really long programs using existing structs, then run them. Java 3D is more object-oriented: build lots of reusable objects on top of provided classes, writ

[JAVA3D] Sound Example

Hi All,     Has anybody got an example on using sounds in java3d.I refered java3d's SimpleSounds example..But they are using Behaviors for Sound...Is it necessary to use Behaviors for Sound.   So i created a behavior class & in that behavior...i'm getting the reference of this sound object &

Re: [JAVA3D] Swing and Java3d thread priority conflicts

Dave, For what it's worth, my application originally used several separate JFrames (two contained Canvas3D's and the others contained Swing components). WindowsNT and Windows98 OS were so terrible at managing the update of the various windows (multiple flashings, unnecessary updates, very sluggis

Re: [JAVA3D] Exception with intersect

Rob, The code segment looks fine. Have you tried without compiling the scene graph ? If the problem goes away, then it might be a j3d compile bug. We would be happy to look at your test program, if you've one. thanks, - Chien Yang Java 3D Team. > X-Sent: 21 Feb 2001 13:35:37 GMT > MIM

Re: [JAVA3D] 2D to 3D

Usually this is called "Raster to Vector" conversion and is non-trivial. There are several packages out there that can do it, for a cost Usually, they are for converting 2D drafting documents to CAD formats, like dxf. Kasparian, Raffi J. wrote: > If you find an algorithm for converting a bitmap

Re: [JAVA3D] 2D to 3D

Hi all. One such package for the graphic design market is Adobe Streamline. It is most often used for posterizing images (involves reducing the number of colours) but the latest version can try to use unlimited colours when vectorizing. You should look it up on the Adobe site for details about

Re: [JAVA3D] Swing and Java3d thread priority conflicts

I think perhaps you are confusing window priority with thread priority. Swing has one or more threads managing N windows and it sets its own priorities, which I assume is "normal". It is very rare in Java to use anything other than NORMAL thread priority, but with Java3d it needs the higher prior

Re: [JAVA3D] 2D to 3D

If you find an algorithm for converting a bitmap to polygonal instructions, please share it with us. I would be interested in seeing it. Raffi -Original Message- From: Fabrizio Nunnari [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 20, 2001 10:03 AM To: [EMAIL PROTECTED] Subject: Re:

Re: [JAVA3D] Swing and Java3d thread priority conflicts

I don't know how to solve your problem, but just a thought: what is the priority level of the login window? Have you tried making it high as well? Also, if they are all of the same priority, wouldn't it make sense that java will have a default order set? I.e. every new window is "below" the old

[JAVA3D] Swing and Java3d thread priority conflicts

I have been recently encountering a problem in our application. Under certain conditions, the java3d threads "starve" the swing threads to the point where swing windows and components become sluggish to the point of uselessness. When we enter our program through one mechanism we do not get this

[JAVA3D] Exception with intersect

Hello all, With 1.2.1 beta 2 I'm sometimes getting exceptions like the following: at javax.media.j3d.Shape3DCompileRetained.intersect(Shape3DCompileRetained.java :453) at javax.media.j3d.Shape3D.intersect(Shape3D.java:456) at rob.ref.CameraBehaviour.permit(CameraBehaviour

Re: [JAVA3D] Memory leak with sun x server?

Andrew, Try Java3D 1.2.1 beta 2 - it appears much more reliable on memory usage. (or wait for 1.2.1 final release which as Sun has stated should be "soon"). We found going to JDK 1.3 helped "mask" the memory loss with the incremental garbage collection. JDK 1.3 is a nice improvement but it won'

Re: [JAVA3D] Collision Detection in J3D 1.2.1 beta2

Thanks. I got it working. But I have 1 more problem. How do I adjust the accurary of the collision detection? I have tried using using the speedhint="USE_GEOMETRY" and hi-res coord but both doesn't seem to improve the accurary. Is there other thing I could try? Thanks again. _

[JAVA3D] Picking/ Collision Detection

I hope this help|:0). http://java.sun.com/products/java-media/3D/collateral/class_notes/slides/mt0335.htm http://java.sun.com/products/java-media/3D/collateral/class_notes/slides/mt0333.htm http://developer.java.sun.com/developer/onlineTraining/java3d/ http://java.sun.com/products/java-medi

[JAVA3D] Memory leak with sun x server?

We are experiencing a memory leak with the following set up: Solaris 7 Sun x server Java3d 1.2 JDK1.2.2 Our code is performing off screen rendering of 3D scenes and sending the images back to a thin client. We have tested this on 3 platforms: Linux : there is a fault with the blackdown J3D text

[JAVA3D] RV: [JAVA3D] Picking/ Collision Detection

Hi again! I'm going on with the target`s function. I've had a lot of troubles with the picking and collision detection features of Java3D.   Can anyone suggest me an URL where I could examine some examples? The TickTopCollision example of the Java3D demo directory is too much simple. I want to

Re: [JAVA3D] Multiple Parent Exception

Karthik, This simply means that you've added this object to another parent already. For example, if you have: TransformGroup tgA = new TransformGroup(); BranchGroup bgA = new BranchGroup(); BranchGroup bgB = new BranchGroup(); bgA.addChild( tgA ); bg

[JAVA3D]

Hi All,        I have a createSceneGraph() method . In that method i build the whole structure. Inside that method i add a behavior object. This behavior is my own class which is a sub class of the Behaviour class. On click of some button I call this createSceneGraph() method again. So wat

[JAVA3D] Multiple Parent Exception

  Hi All,        I have a createSceneGraph() method . In that method i build the whole structure. Inside that method i add a behavior object. This behavior is my own class which is a sub class of the Behaviour class. On click of some button I call this createSceneGraph() method again. So wat