Re: [JAVA3D] Smoke

2000-02-13 Thread Casteel, Don
I would think 10,000 is a good start. You may want to try random pointSizes as well. If the rendering of the particles is suficently fuzzy, fewer larger particles should be required. If the particles are more defined, you'll need a lot more of them and they'll have to be smaller. I've done some

Re: [JAVA3D] Normals?

2000-02-13 Thread Gernot Veith
Hi Thomas, a normal is a vector perpenticular to the pane built by three points of the triangle in question. It is needed to calculate lighting and visibility of surfaces. If you go counterclockwise thru all 3 points (a, b, c) of a triangle using the fingers of your right hand, the normal vecto

Re: [JAVA3D] Normals?

2000-02-13 Thread The Casteels
A normal (as I understand it) is a vector at a point on a surface which is exactly perpendicular to the surface. In most cases you will only be dealing with normals which are located at a corner vertex of a triangle or polygon. By knowing the vector which is perpendicular, you can calculate the

Re: [JAVA3D] Normals?

2000-02-13 Thread Gary L. Graf
Hi, Consider a normal as an arrow pointing directly away from a surface. For your desktop the normal would be straight up. For an infitessimally thin object, like most computer shapes, it is important to decide which side of the object is "out" because we want all our normals to point "out" w

Re: [JAVA3D] Freeze under Windows98

2000-02-13 Thread Malguy, Eric G.
We've had the same problem and no solution! -Original Message-From: kwc [mailto:[EMAIL PROTECTED]]Sent: Thursday, February 10, 2000 10:09 PMTo: [EMAIL PROTECTED]Subject: [JAVA3D] Freeze under Windows98 I'm getting a freeze on my Windows98 system.  The first time I run any Ja

Re: [JAVA3D] Normals?

2000-02-13 Thread Eric Arnold
a normal to a surface is a vector that is perpendicular to it. For a the simple example of a plane, it comes out of the center and would point along the y axis if the plane is in the x-z plane. Hope this helps Eric > What exactly are Normals? (I know there used to calculate which face gets > l

Re: [JAVA3D] file permissions

2000-02-13 Thread Daniel Selman
Eric, If you are loading the file in your own code make sure you are using a URL object to describe the path to the file and that you use the getCodeBase() method to specify the root of the URL. If you are loading it as a Texture image use the TextureLoader class, I think it takes care of all th

Re: [JAVA3D] Normals?

2000-02-13 Thread Daniel Selman
Thomas, Normals are "normal vectors". Normal is a mathematical way of saying "perpendicular to". A Normal is therefore a vector that is perpendicular to the plane that describes a surface. The easiest way to generate Normals in Java 3D is to use the NormalGenerator utility class (part of the com

Re: [JAVA3D] Freeze under Windows98

2000-02-13 Thread Jay Scherer
I've had similar problems with basically the same configuration, but not using DirectX.  This might sound crazy, but I've found that if I hit ctrl-alt-del and click the right mouse button a bunch of times around the toolbar, it works.  Don't laugh, it works Jay kwc wrote:  I'm getting a free

Re: [JAVA3D] Once again what are the best graphic cards for j3d??

2000-02-13 Thread Bob Gray
You asked: "Are you sure you are using the directX version of java3d???" I am not sure of **anything**. How can I tell I thought I was using OpenGL, but when I installed the card, non of the Java3D stuff worked. After calling support and doing some tests, it was found that I didn't have d

[JAVA3D] Source-codes of the Java3D API

2000-02-13 Thread Claude Schwab
Hi there, Who could give me the URL to find the source-codes of the Java3D API ? Thanks a lot. C S === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For

[JAVA3D] Flickering at 50 fps?

2000-02-13 Thread Patrick Roemer
Hallo, I am trying to do a little game in which one moves around on a 2D plane inside a wall system loaded from a 3DS file. A very basic native joystick controller class is used with a behavior that wakes up on elapsed time and polls the joystick. There is no 'real' collision detection involved;

Re: [JAVA3D] Freeze under Windows98

2000-02-13 Thread kwc
I did install the latest drivers.  No effect. I'm using the DirectX version under 98.  At some lull in my coding I'm going to try the OpenGL version under 98.   My suspicion is that there's some problem with the DirectX version of the java3d dll that only exhibits itself with certain hardwa

Re: [JAVA3D] Freeze under Windows98

2000-02-13 Thread Richard Kutzky
I'm not sure if this catches the core of your problem, but I experienced similar problems with my early java3d-proggies. My application worked only for the first time, the second attempt gave me only a white frame and freezed the system, requiring a hard system reset. It vanished after I added a

[JAVA3D] How can I make terrain?

2000-02-13 Thread Ian Phillips
Can someone please let me use some source code that will tell me how to make terrain? I want some terrain that will be wireframe if it is possible. Thanks, Ian __ Get Your Private, Free Email at http://www.hotmail.com ==

[JAVA3D] Normals?

2000-02-13 Thread Thomas M Clarke
What exactly are Normals? (I know there used to calculate which face gets lighting) And How do I define normals for example for the following TriangleArray: private static final float[] verts = { -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.5f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.

[JAVA3D] file permissions

2000-02-13 Thread Eric Arnold
when I try running my applet on my site I get this "exception: access denied (java.io.FilePermission sparty.jpg read) but I know that the right file permisions are set for the image file and it is in the same directory as my program... I used the HTML converter to create the page. Can anyone hel

[JAVA3D] collision between vrml objects (worlds)

2000-02-13 Thread HAroldo Pereira
Hi I have one problem. I read the TickTockCollision on sample of java3D. I don't know how to detect collision between 2 objects (the TickTockCollision sample is about Shape3D) as geometry of files vrml (BranchGroup) . This code works if shape is of the type Shape3D. I want that shape is o

Re: [JAVA3D] Freeze under Windows98

2000-02-13 Thread Evan Drumwright
kwc,   I'd recommend reinstalling or updating your video drivers.  Another possibility is to try the different flavors of Java 3D (Open GL and Direct X)- if you're currently using the Open GL version, try the Direct X and vice versa.  Note that the new version of Java 3D (1.2) supports only