thanks

give me some time 

Well, you can't render Swing or AWT components on top of a native OpenGL output. You can try to use FrameBuffer.enableGLCanvasRenderer() (don't forget to disable the software renderer in addition), which will return a Canvas. This (heavyweight) Canvas can be combined with Swing/AWT components to a degree. You should find some information about this when searching the forums.

well,as you say ,I get a AWTGLCanvas which i can put this canvas into a JFrame,but the KeyMapper is wrong, i implements a KeyListener(java.awt.event.KeyListener;),but it seemes not work

my code such as
public class Test implements KeyListener {
        frame = new JFrame("test");
        panel = new JPanel();
        frame.setLayout(new GridLayout(1,1));
   frame.setSize(width, height);
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   frame.add(panel);
        frame.setVisible(true);
   buffer = new FrameBuffer(panel.getWidth(),panel.getHeight(),FrameBuffer.SAMPLINGMODE_HARDWARE_ONLY);
   buffer.disableRenderer(IRenderer.RENDERER_SOFTWARE);
   //buffer.enableRenderer(IRenderer.RENDERER_OPENGL, IRenderer.MODE_OPENGL);
   canvas = buffer.enableGLCanvasRenderer();
   panel.add(canvas,new GridLayout(1,1));
   canvas.addKeyListener(this);
   frame.addKeyListener(this);
}

public void keyTyped(KeyEvent e){
   System.out.println("ley d");
}
public void keyPressed(KeyEvent e){
   System.out.println("ley d");
}
public void keyReleased(KeyEvent e){
   System.out.println("ley d");
}

the game loop is
buffer.clear();
theWorld.renderScene(buffer);
theWorld.draw(buffer);
buffer.update();
buffer.displayGLOnly();
canvas.repaint();

Is there something I can change to allow the mapper to be correctly ?

use hardware accelerated rendering using OpenGL,maybe i need to use software?

Thanks!
Useful info!

you are right,i want to get the car's coordinates.

now i'm writing a network demo for interests based on JPCT Car,I write a method to send local client's coordinates to srever.

car.getTranslation() or car.getTransformedCenter() ...........let me try

If we want to add an object3D into world we can do this :

World world = new World();
Object3D model1 = ...
Object3D model2 = ...

world.addObject(model1);
world.addObject(model2);

now,if we wang to remove model2 from world , how can we do?