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Messages - gamerfan

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Support / Object rotation
« on: June 29, 2011, 11:44:23 am »
I was going through the CollisionDemoSoftware and trying to understand how it works.There I noticed one thing that the small cube has been placed on the plane.Here I need to rotate the small cube along X-axis to a certain degree.But when rotated the cube, the entire scene was away from the other objects along with small cube. (In fact, only the small cube is visible). What I want to achieve here is everything should be there as expected but the small cube should be rotated along x axis. This is the code I have used.
Code: [Select]
                cube = Primitives.getCube(2);
cube.translate(-50, -10, -50);
How to handle this? Thanks in advance.

Support / Re: loading .obj file
« on: June 29, 2011, 11:32:35 am »
Thanks for the reply.

Support / Re: loading .obj file
« on: June 22, 2011, 12:30:10 pm »
Quick Update. I changed the ambient  light to max like this:
World.setAmbientLight(255, 255, 255)
This time it loads!!.But no texture seems to be applied to the model.It displays a white object only.Is it because of the problem in the model file that I had used?

Support / Re: loading .obj file
« on: June 22, 2011, 09:08:45 am »
Thank you very much for the support.I have added your new jpct jar file and ran the same program.But this time I am not getting any error in the console.But nothing displays in the screen.Is it a problem with the code?

Let me ask you one more thing.Why cannot we have a method in jpct that will load the .blend file as well? or can we integrate the with some other programs that is already loading the .blend file?

Support / Re: loading .obj file
« on: June 21, 2011, 04:46:48 am »
Thanks for the reply.
Please find the original model files in blender and the exported models using latest version of the Blender and its textures

Please specify should I do any changes in the model files when exporting.I have only little knowledge in Blender.

Support / loading .obj file
« on: June 20, 2011, 07:37:56 pm »
I am new to jPCT and am using this framework to develop a sample game.I am trying yo load .obj file under 3ds folder.I have created .obj file from .blender file using its exporter.But when I run the following code I am getting this exception:

Text file 3ds\butterfly.obj loaded...287934 bytes
Processing object from OBJ-file: Cube_Cube.001
Object 'Cube_Cube.001_jPCT0' created using 12 polygons and 8 vertices.
Processing object from OBJ-file: Plane.001_Plane
Object 'Plane.001_Plane_jPCT1' created using 10368 polygons and 5329 vertices.
Processing object from OBJ-file: butterfly_logic
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -10000
        at com.threed.jpct.Loader.createOBJObject(Unknown Source)
        at com.threed.jpct.Loader.loadOBJ(Unknown Source)
        at com.threed.jpct.Loader.loadOBJ(Unknown Source)
        at jpctdemo.Main.<init>(
        at jpctdemo.Main.main(

Let me paste the code here.This sample I have taken from the forum only.

Code: [Select]
package jpctdemo;

import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
import com.threed.jpct.*;

class Main extends JFrame
   private FrameBuffer _buffer = null;
   private World _world = null;
   private TextureManager _texMgr = null;
   private Camera _camera = null;
   private int _width = 800;
   private int _height = 600;
   private Graphics _graphics = null;
   private int _titleBarHeight = 0;
   private int _leftBorderWidth = 0;
   private Object3D[] _model = null;
   private ClassLoader _classLoader = getClass().getClassLoader();

   public Main()
      super("jPCT " + Config.getVersion());
      Config.glFullscreen = false;
      Config.glMipmap = true;
      Config.glColorDepth = 16;
      Config.maxPolysVisible = 64000;
      Config.fadeoutLight = false;
      _world = new World();
      _world.setAmbientLight(25, 30, 30);
      _world.addLight(new SimpleVector(-1000, -150, 1000), 22, 5, 4);
      _world.addLight(new SimpleVector(1000, -150, -1000), 4, 2, 22);     

      _texMgr = TextureManager.getInstance();
   char c = File.separatorChar;
  _texMgr.addTexture("prop_butterfly_diff", new Texture("textures"+c+"prop_butterfly_diff.png"));
      _texMgr.addTexture("fx_sparkles", new Texture("textures"+c+"fx_sparkles.png"));

//      _texMgr.addTexture("tex", new Texture(_classLoader.getResourceAsStream("model/Mat.jpg")));

      _model = Loader.loadOBJ("3ds"+c+"butterfly.obj", "3ds"+c+"butterfly.mtl", 1f);
      for (int i = 0; i < _model.length; i++)
      _camera = _world.getCamera();
      _camera.setPosition(-12, 90, 0);  // ARGGGHH  how can I center the camera over the stick figure?


      Insets insets = getInsets();
      _titleBarHeight =;
      _leftBorderWidth = insets.left;
      setSize(_width + _leftBorderWidth + insets.right, _height + _titleBarHeight + insets.bottom);
      _graphics = getGraphics();

      addMouseMotionListener(new MouseDragListener());

      _buffer = new FrameBuffer(_width, _height, FrameBuffer.SAMPLINGMODE_NORMAL);

   public static void main(String[] args)
      new Main();

   private void drawWorld()
      _buffer.display(_graphics, _leftBorderWidth, _titleBarHeight);
   private class MouseDragListener implements MouseMotionListener
      final float speed = 0.05f;
      int lastX = 0;
      int lastY = 0;
      public void mouseDragged(MouseEvent me)
         int currentX = me.getX();
         int currentY = me.getY();
         if (currentX > lastX)
            // the mouse is going to the right
         else if (currentX < lastX)
            // the moust is going to the left
         if (currentY > lastY)
            // we are going down on the screen
         else if (currentY < lastY)
            // we are going up on the screen
         lastX = currentX;
         lastY = currentY;

      public void mouseMoved(MouseEvent arg0)

Can you please look into this issue and tell what I am doing wrong here.


Projects / Re: Started a new project, looking for some help....
« on: June 08, 2011, 10:21:00 am »
I am interested in this new idea.I have some programming experience in gaming field.I have used some framework before to just develop some sample demos(not having any demo with me).Even though jPCT is quite new to me , I can just lean this API and get going.


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