Hi,

Is normal that the Y axis is positive goes downwards??
is this a bad configuration in the camera or is the engine coordinated system??
which is the coordinated system?
How can I configure to Y positive goes Up and X positive goes right??

Thanks a lot!!

Hi,

How can I resize FrameBuffer when the canvas get resized (or emulate this painting the Frame buffer in the whole resized canvas)??,

Im creating a thread per created panel to update the objects, I was thinking about:
1-Remove the canvas from the panel
2-Destroy the FrameBuffer,
3-Recreate the Frame buffer with the new size
4-add the canvas again to the panel.

I dont know how to paint it in the whole resized canvas, it is possible??

Here is the main parts of my Panel code:




public class PointCloudPanel extends javax.swing.JPanel {

    public void initCanvas()
    {
        world = new World();
        world.setAmbientLight(255, 255, 0);

TextureManager.getInstance().addTexture("box", new Texture("c:\\1191.jpg"));
        box = Primitives.getBox(13f, 2f);
        box.setTexture("box");
        box.setEnvmapped(Object3D.ENVMAP_ENABLED);
        box.build();
        world.addObject(box);
        world.getCamera().setPosition(50,50, 50);
        world.getCamera().lookAt(box.getTransformedCenter());

        this.setSize(320, 240);
        buffer = new FrameBuffer(this.getWidth(), this.getHeight(), FrameBuffer.SAMPLINGMODE_GL_AA_4X);
        canvas = buffer.enableGLCanvasRenderer();
        buffer.disableRenderer(IRenderer.RENDERER_SOFTWARE);
        this.add(canvas);

        IPaintListener listener = new IPaintListener() {
            public void finishedPainting() {}
        };


        buffer.setPaintListener(listener);
        canvas.addComponentListener(new ComponentAdapter() {
            @Override
            public void componentResized(ComponentEvent ce) {
                System.out.println("RESIZED");
            }
        });


        Thread thread = new LoopThread(this);
        thread.start();

       
    }

    public PointCloudPanel() {
        initComponents();
        initCanvas();     
    }

    class LoopThread extends Thread {


        LoopThread(PointCloudPanel jp) {
        }

        @Override
        public void run() {


            while (true) {
                box.rotateY(0.01f);
                world.getCamera().lookAt(box.getTransformedCenter());
                buffer.clear(java.awt.Color.GRAY);
                world.renderScene(buffer);
                world.draw(buffer);
                buffer.update();
                buffer.displayGLOnly();
                canvas.repaint();
                try {
                    LoopThread.sleep(10);
                    increment += 1;
                } catch (InterruptedException ex) {
                }
            }
        }
    }
           
    private World world;
    private FrameBuffer buffer;
    private Object3D box;
    private Canvas canvas;
    private float increment = 0;
}






Let me know if you know another method please.

Thanks for any help!

Hi,

I want to know how to use the world camera and projection matrix with the glBegin, glVertex3f, glEnd functions to render a list of points with GL_POINTS, but I want to use the same camera and projection of the world object.
Any idea of how to do this?

Thanks a lot for any help