public void display(GLAutoDrawable drawable) {
   GL gl = drawable.getGL();
   synchronized (this._camera) {
     try {
       gl.glClear(
           GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT); // Clear the buffers for new frame.
       NyARGLDrawUtil.drawBackGround(gl, this._camera.getSourceImage(), 1.0);
       this._nyar.update(this._camera);
       if (this._nyar.isExistMarker(this.ids[0])) {
         gl.glMatrixMode(GL.GL_MODELVIEW);
         gl.glPushMatrix();
         gl.glLoadMatrixd(this._nyar.getGlMarkerMatrix(this.ids[0]), 0);
         NyARGLDrawUtil.drawColorCube(gl, 40);
         gl.glPopMatrix();
       }
       if (this._nyar.isExistMarker(this.ids[1])) {
         gl.glMatrixMode(GL.GL_MODELVIEW);
         gl.glPushMatrix();
         gl.glLoadMatrixd(this._nyar.getGlMarkerMatrix(this.ids[1]), 0);
         NyARGLDrawUtil.drawColorCube(gl, 40);
         gl.glPopMatrix();
       }
       Thread.sleep(1);
     } catch (Exception e) {
       e.printStackTrace();
     }
   }
 }
 public void init(GLAutoDrawable drawable) {
   GL gl = drawable.getGL();
   gl.glMatrixMode(GL.GL_PROJECTION);
   gl.glLoadMatrixd(this._nyar.getGlProjectionMatrix(), 0);
   gl.glEnable(GL.GL_DEPTH_TEST);
   gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
   Animator animator = new Animator(drawable);
   animator.start();
   return;
 }
  public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {

    _gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
    _gl.glViewport(0, 0, width, height);

    // 視体積の設定
    _gl.glMatrixMode(GL.GL_PROJECTION);
    _gl.glLoadIdentity();
    // 見る位置
    _gl.glMatrixMode(GL.GL_MODELVIEW);
    _gl.glLoadIdentity();
  }
 public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
   GL gl = drawable.getGL();
   gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
   gl.glViewport(0, 0, width, height);
   return;
 }