Java-Gaming.org
Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars!
Featured games (78)
games approved by the League of Dukes
Games in Showcase (416)
games submitted by our members
Games in WIP (307)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
 
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  [ODEJava] TriMesh  (Read 825 times)
0 Members and 1 Guest are viewing this topic.
Offline raziel

Junior Newbie




Java games rock!


« Posted 2005-05-02 16:24:05 »

Hello everybody,

I'm tryng to create a simple body with a GeomTriMesh, but when I try I got the error "inertia must be positive definite" and the body doesn't collide with any other body.

The code for creating the vertices and indices of the GeomTriMesh should be correct because if used for the Java3D IndexedTriangleArray it works perfectly:
1  
2  
3  
4  
5  
6  
7  
8  
9  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
int numVertex = 4 * 3;
int indexCount = 12;
     
float[] vertices = new float[numVertex];
int[] indices = new int[indexCount];
float size = 1f;
   
vertices[0 * 3 + 0] = 0;
vertices[0 * 3 + 1] = 0;
vertices[0 * 3 + 2] = 0;
   
vertices[1 * 3 + 0] = size;
vertices[1 * 3 + 1] = 0;
vertices[1 * 3 + 2] = 0;
   
vertices[2 * 3 + 0] = 0;
vertices[2 * 3 + 1] = size;
vertices[2 * 3 + 2] = 0;
   
vertices[3 * 3 + 0] = 0;
vertices[3 * 3 + 1] = 0;
vertices[3 * 3 + 2] = size;
   
int j = 0;
indices[j++] = 1;
indices[j++] = 2;
indices[j++] = 3;
   
indices[j++] = 0;
indices[j++] = 2;
indices[j++] = 1;
   
indices[j++] = 2;
indices[j++] = 0;
indices[j++] = 3;
   
indices[j++] = 3;
indices[j++] = 0;
indices[j++] = 1;


Then I just add:
1  
Body body = new Body("pippo", world, new GeomTriMesh(vertices, indices));


And BOOM the error message appear on the screen.

Can anyone try to help me?
Offline ewills

Junior Member




Java skeletal animation systems rock!


« Reply #1 - Posted 2005-05-02 19:08:10 »

Are you using the latest CVS?
Offline raziel

Junior Newbie




Java games rock!


« Reply #2 - Posted 2005-05-03 06:28:37 »

I think so. I downloaded this two files:

odejava-2004-10-30_cvs.zip and
2004-10-30_windows.zip

but I didn't recompile anything. I there a problem?

The strange thing is that the other geometry works perfectly, only the TriMesh doesn't.

What can it be?
Games published by our own members! Check 'em out!
Legends of Yore - The Casual Retro Roguelike
Offline raziel

Junior Newbie




Java games rock!


« Reply #3 - Posted 2005-05-03 13:50:36 »

I'm a stupid! Embarrassed

It wasn't the last version! Now I downloaded the new one with WinCVS and it's working.

Anyway thanks for answer me.
Offline ewills

Junior Member




Java skeletal animation systems rock!


« Reply #4 - Posted 2005-05-03 16:07:16 »

No problem.  Glad to hear it's working!
Pages: [1]
  ignore  |  Print  
 
 
You cannot reply to this message, because it is very, very old.

Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars!
 
Browse for soundtracks for your game!

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

The invasion has landed! On Mars! And you're there to beat 'em!
mrbenebob (16 views)
2013-06-19 14:55:23

BrassApparatus (25 views)
2013-06-19 08:52:37

NegativeZero (28 views)
2013-06-19 03:31:52

NegativeZero (31 views)
2013-06-19 03:24:09

Jesse_Attard (34 views)
2013-06-18 22:03:02

HeroesGraveDev (71 views)
2013-06-15 23:35:23

Vermeer (71 views)
2013-06-14 20:08:06

davedes (72 views)
2013-06-14 16:03:55

alaslipknot (64 views)
2013-06-13 07:56:31

Roquen (88 views)
2013-06-12 04:12:32
Smoothing Algorithm Question
by UprightPath
2013-05-28 02:58:26

Smoothing Algorithm Question
by UprightPath
2013-05-28 02:57:33

Complex number cookbook
by Roquen
2013-04-24 12:47:31

2D Dynamic Lighting
by Oskuro
2013-04-17 16:46:12

2D Dynamic Lighting
by Oskuro
2013-04-17 16:45:57

2D Dynamic Lighting
by Oskuro
2013-04-17 16:23:20

Noise (bandpassed white)
by Roquen
2013-04-05 17:36:01

Noise (bandpassed white)
by Roquen
2013-04-03 16:17:38
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!