[JAVA3D] Geometry Array - getColors(index, Color3f[ ])

Hi, I get a NullPointer Exception with the following code... What is going wrong. Color3f[] colorArray = new Color3f[2000]; //quadArray is in my Geometry, the number of vertices in the geometry is more than 2000. quadArray.getColors(0,colorArray) //similar problem with getCoordinates(..)

Re: [JAVA3D] UnsatisfiedLinkError - Anybody?

OK - I'm puzzled: 'javax.media.j3d.MasterControl.getNumberOfProcessor' javax.media.MasterControl doesn't seem to be documented. e.g. see: http://java.sun.com/products/java-media/3D/forDevelopers/J3D_1_2_API/j3dapi/index.html Is this an internal class ? getNumberOfProcessor sounds quite

Re: [JAVA3D] com.sun.j3d.utils.geometry.Box;

Here is enclosed the class I use to do what you want. Víctor "b. white" wrote: I want to use The wireFrame of the Box but when I set the appearance of the Box to have the PolygonAttribute PolyGon_Line the wireframe appears with a diagonal line from the bottom left corner to the top right

Re: [JAVA3D] Geometry Array - getColors(index, Color3f[ ])

You say there are more than 2000 vertices in the geometry, but you only make an array to hold 2000? That could be a problem, though I think the real problem is that you are not allocating the colors... int i; for(i=0; icolorArray.length; i++) colorArray[i] = new Color3f(); Same thing

Re: [JAVA3D] Geometry Array - getColors(index, Color3f[ ])

Hi Shravan, I experienced this problem in my first week working with Java3D. Maybe my workaround is incorrect, but I think you have to create the elements of your Color3f array and Point3f array individually first. The getCoordinates and getColors methods do not allocate, they only assign the

Re: [JAVA3D] Java compiling question

Jack, I think your getting the DEBUG variable mixed up with another option. I can't remember it name. But allows developers to add debugging statements during checkout and remove them for distribution. I can't recall the name now. -- From: Jack Pien[SMTP:[EMAIL PROTECTED]]

[JAVA3D] Background drastically slows down interaction

Hi there - i'm loading in a VRML file (130KB) which uses two jpg files (18 and 17KB) as texture maps - altering orientation and size with mouse is fine with just a plane colour background but with a jpg background (81KB) the movement is very slow and jumpy - does anyone know why this shoud be

Re: [JAVA3D] Background drastically slows down interaction

Matthew Cairns wrote: fine with just a plane colour background but with a jpg background (81KB) the movement is very slow and jumpy - does anyone know why this shoud be or how to solve the problem? Go back to plain colour. Images as backgrounds are very expensive to render as each frame you

Re: [JAVA3D] Java compiling question

The way this is written will indeed compile the code. Usually the optimizer will then remove the code as "dead" code, since it is impossible to actually execute the code. Dave Yazel -- From: Jack Pien[SMTP:[EMAIL PROTECTED]] Reply To: Discussion list for Java 3D API

Re: [JAVA3D] Background drastically slows down interaction

Hmm, I had hoped to implement clouds and other atmosphere effects with a sphere geometry with a rotation applied over time. Sounds like this will be an expensive solution. How have other people implemented clouds? Dave Yazel -- From: Justin Couch[SMTP:[EMAIL PROTECTED]]

[JAVA3D] [java3d]Problem

Problem 1: How can I transfer all the movement or update to the scene of the 3D objects and record it into a script for later use. problem 2: How to set limitation of movement on each individual object, so each object can move only at certain angle or distance relative to another object.

[JAVA3D] Collision Response Urgent Help required

Hello, I have just started learning java 3d and I have been struggling to come to terms with collision detection and response.What I want is a ball bouncing of a wall. I have looked at tick tock collision (in the demos) and managed to modify my code to detect collision (which is not always

Re: [JAVA3D] nt and java3d

I get this using Win2k running dual monitors and using J3D OpenGl. However, using J3D Direct X beta works. Jon -Original Message-From: Ben Arbel [mailto:[EMAIL PROTECTED]]Sent: Wednesday, August 02, 2000 4:07 PMTo: [EMAIL PROTECTED]Subject: [JAVA3D] nt and java3d hi all..

Re: [JAVA3D] UnsatisfiedLinkError - Anybody?

Rob, getNumberOfProcessor is a private method use only within Java 3D for performance scalability based upon the number of CPUs in the system. - Chien Yang Java 3D Team. MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Date: Thu, 3 Aug 2000 09:46:13 +0100 From: Rob Nugent [EMAIL

Re: [JAVA3D] Background drastically slows down interaction

Matthew Cairns wrote: fine with just a plane colour background but with a jpg background (81KB) the movement is very slow and jumpy - does anyone know why this shoud be or how to solve the problem? Go back to plain colour. Images as backgrounds are very expensive to render as each

Re: [JAVA3D] Collision Response Urgent Help required

Ipsi, Forget using Sun's "Collision Detection". I'd recommend you calculate the new position of the object (ball) and then use picking to see if it is about to collide with another object. This way you can stop the motion BEFORE it collides (rather than after). - John Wright Starfire Research

Re: [JAVA3D] UnsatisfiedLinkError - Anybody?

Hi Rob, Yes, MasterControl is an private class specific to current implementation. - Kelvin Java 3D team Sun Microsystems Inc. Date: Thu, 03 Aug 2000 09:46:13 +0100 From: Rob Nugent [EMAIL PROTECTED] MIME-Version: 1.0 To: Kelvin Chung [EMAIL PROTECTED] CC: [EMAIL PROTECTED]

Re: [JAVA3D] Background drastically slows down interaction

Hi Matt, Some graphics card don't accelerate OpenGL drawPixels() so draw background is slower. However if you are using Java3D v1.2 beta1 DirectX version, using background is not a problem since it can directly Blt the image to 3D surface very fast. Thanks. - Kelvin Java 3D

Re: [JAVA3D] UnsatisfiedLinkError - Anybody?

Hi folk, well so far I've learned that MasterControl is private class but that doesn't help me much since I cannot run even one j3d program ...and I've checked java3d.dll in /bin directories (been there all the time) ...any more suggestion what might be causing to throw this exception??? Peter

[JAVA3D] Auto-installing java3d on client browser

Hi All, I have trouble in getting a java3d applet work from a remote client browser. I used HTML converter to create the HTML page. When I access the applet from a browser with no swing and java3d installed, I get the prompt for installing java plug-in for swing. But the browser is not asking for

[JAVA3D] Two bugs in VRML browser and one solution

Hi, I've found the following two bugs in J3D VRML classes (downloaded from x3d's CVS repository): 1) IndexedLineSet is not colored if the color attribute is not specified but the appearance is. VRML97 specification says: If the color field is NULL and there is a Material defined for

[JAVA3D] Text2D by reference help

Hi, i'm having trouble tweaking the Text2D class to create its QuadArray with referenced vertices instead of by copying. I've essentially altered the setupGeometry function to do things by reference instead. Only when I use the altered class, the Text2D object doesn't appear anywhere. In the code

Re: [JAVA3D] UnsatisfiedLinkError - Anybody?

When you invoke javac on the .java file, add the -verbose switch. It will show you which directory the runtime engine (rt.jar) is running from. If this is a directory other than where you told the 3D engine to look for the JRE, I would be suspect. I had this error also, and had to modify some

Re: [JAVA3D] -verbose

It seems your j3d.dll is not being found. Most likely you need to update the JavaHome path in your registry. First do a search on j3d.dll and find out where it exist on your computer then run regedt32 and try changing your \HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.3 key