Ejemplo n.º 1
0
  public void displayInit(Point pickPoint) {
    gl.glShadeModel(GL.GL_SMOOTH);

    gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);

    gl.glMatrixMode(GL.GL_PROJECTION);
    gl.glLoadIdentity();

    if (pickPoint != null) {
      int[] vp = new int[4];
      gl.glGetIntegerv(GL.GL_VIEWPORT, vp, 0);
      GLU glu = new GLU();
      int px = (int) pickPoint.getX();
      int py = (int) (vp[3] - pickPoint.getY());
      glu.gluPickMatrix(px, py, 1e-2, 1e-2, vp, 0);
    }

    gl.glOrtho(0, bounds.getWidth(), 0, bounds.getHeight(), .1, depth);

    gl.glMatrixMode(GL.GL_MODELVIEW);
    gl.glLoadIdentity();

    glu.gluLookAt(0, 0, depth - 0.1, 0, 0, 0, 0, 1, 0);

    gl.glInitNames();
    gl.glPushName(-1);
  }
Ejemplo n.º 2
0
 public void prepare(GL2 gl, GLU glu, GLUT glut) {
   if (DEBUG) {
     System.out.println("Eye:    " + eyeX + ", " + eyeY + ", " + eyeZ);
     System.out.println("Center: " + centerX + ", " + centerY + ", " + centerZ);
     System.out.println("ViewUp: " + viewUpX + ", " + viewUpY + ", " + viewUpZ);
   }
   glu.gluLookAt(eyeX, eyeY, eyeZ, centerX, centerY, centerZ, viewUpX, viewUpY, viewUpZ);
 }
Ejemplo n.º 3
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  @Override
  public void display(GLAutoDrawable dr) {
    GL2 gl = dr.getGL().getGL2();
    // Очиска экрана
    gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
    // Загрузка единичной матрицы
    gl.glLoadIdentity();
    // Определение точки и направления взгляда
    glu.gluLookAt(0f, 0f, 2f, 0f, 0f, -100f, 0f, 1f, 0f);

    renderer.render(gl, model);
  }
Ejemplo n.º 4
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 public void setup(GL gl, GLU glu) {
   glu.gluLookAt(
       location.getX(),
       location.getY(),
       location.getZ(),
       target.getX(),
       target.getY(),
       target.getZ(),
       0.0f,
       1.0f,
       0.0f);
 }
Ejemplo n.º 5
0
  public void eertLookAt(GL gl) {

    GLU glu = new GLU();
    this.loc = this.engine.camMove.pos;
    glu.gluLookAt(
        this.engine.camMove.pos.x,
        this.engine.camMove.pos.y,
        this.engine.camMove.pos.z,
        this.engine.camMove.lookAt.x,
        this.engine.camMove.lookAt.y,
        this.engine.camMove.lookAt.z,
        0f,
        1f,
        0f);
  }
Ejemplo n.º 6
0
 @Override
 public void display(GLAutoDrawable dr) {
   GL2 gl = dr.getGL().getGL2();
   // Очиска экрана
   gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
   // Загрузка единичной матрицы
   gl.glLoadIdentity();
   // Определение точки и направления взгляда
   glu.gluLookAt(0f, 0f, 10f, 0f, 0f, -100f, 0f, 1f, 0f);
   // Загрузка текстуры в графическую память
   this.texture.bind(gl);
   GLUquadric ground = glu.gluNewQuadric();
   // enabling texturing on the quadric
   glu.gluQuadricTexture(ground, true);
   glu.gluSphere(ground, 1, 64, 64);
   glu.gluDeleteQuadric(ground);
 }
Ejemplo n.º 7
0
  /** performs the gl camera transformations for the right eye */
  public void translateRightEye(GL gl, GLU glu, GLUT glut) {
    // calculate the right vector
    Vector3d right = new Vector3d();
    Vector3d temp1 = (Vector3d) cameraTarget.clone();
    temp1.scale(-1);
    Vector3d temp2 = (Vector3d) cameraPosition.clone();

    temp2.add(temp1);
    right.cross(cameraUp, temp2);

    right.normalize();
    right.scale(eyespread / 2.);
    glu.gluLookAt(
        right.x + cameraPosition.x,
        right.y + cameraPosition.y,
        right.z + cameraPosition.z,
        right.x + cameraTarget.x,
        right.y + cameraTarget.y,
        right.z + cameraTarget.z,
        cameraUp.x,
        cameraUp.y,
        cameraUp.z);
  }
Ejemplo n.º 8
0
  @Override
  public void display(GLAutoDrawable drawable) {

    gl = drawable.getGL().getGL2();
    gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
    gl.glMatrixMode(GL2.GL_MODELVIEW);
    gl.glLoadIdentity();

    // desenha ou nao a bounding sphere de cada objeto
    if (InputHandler.getInstance().isKeyPressed(KeyEvent.VK_B)) { // tecla B
      BoundingVolume.isVisible = !BoundingVolume.isVisible;
    }
    // habilita ou nao fog
    if (InputHandler.getInstance().isKeyPressed(KeyEvent.VK_F)) { // tecla F
      fogEnabled = !fogEnabled;
      if (fogEnabled) gl.glEnable(GL2.GL_FOG);
      else gl.glDisable(GL2.GL_FOG);
    }

    // atualiza camera
    camera.update();
    // atualiza objetos
    {
      Iterator<SceneObject> it = Scene.getInstance().getSceneObjectsIterator();
      while (it.hasNext()) {
        SceneObject so = it.next();
        // animacao da porta
        if (so.getName().contains("door")) {
          if (Collision.collide(
              camera.getSceneObject().getBoundingSphere(), so.getBoundingSphere()))
            so.setAnimating(true);
          else so.setAnimating(false);
        }

        so.update();
      }
    }

    glu.gluLookAt(
        FPCamera.position.x,
        FPCamera.position.y,
        FPCamera.position.z,
        FPCamera.position.x + FPCamera.look.x,
        FPCamera.position.y + FPCamera.look.y,
        FPCamera.position.z + FPCamera.look.z,
        FPCamera.up.x,
        FPCamera.up.y,
        FPCamera.up.z);

    if (FPCamera.changed) { // se direcao da camera mudar
      FPCamera.changed = false;

      frustum.generate(drawable); // gera o frustum

      Scene.getInstance().clearVisibleObjectsList();

      Iterator<SceneObject> it = Scene.getInstance().getSceneObjectsIterator();
      while (it.hasNext()) {
        SceneObject so = it.next();
        if (frustum.sphereInFrustum(so.getBoundingSphere()))
          Scene.getInstance().addVisibleObject(so);
      }

      //            System.out.println("Renderable objects: "+ Scene.getInstance().getSize());
      //            System.out.println(FPCamera.position);
    }

    // desenha objetos
    {
      Iterator<SceneObject> it = Scene.getInstance().getVisibleObjectsIterator();
      SceneObject so;
      while (it.hasNext()) {
        so = it.next();

        if (so.getName().contains("lake")) {
          gl.glPushAttrib(GL2.GL_ENABLE_BIT);
          gl.glEnable(GL.GL_BLEND);
          gl.glBlendFunc(GL.GL_ONE, GL.GL_ONE);
          so.draw(drawable);
          gl.glPopAttrib();
          continue;
        }
        so.draw(drawable);
      }
    }

    //        int e = gl.glGetError();
    //        if(e != GL.GL_NO_ERROR) {
    //            System.err.println("Erro: "+ gl.glGetString(e));
    //        }
    // calculo do fps
    ++frame;
    long time = System.currentTimeMillis();
    elapsed = time - timebase;
    if (elapsed > 1000) {
      long fps = frame * 1000 / (time - timebase);
      timebase = time;
      frame = 0;

      String str = "FPS: " + fps;
      mainFrame.setTitle(str);
    }

    // gl.glFlush();
  }
Ejemplo n.º 9
0
  /*
      public void makeBoundingSphere() {
          float x = (float) (Math.sin(this.pitch) * Math.cos(this.heading));
          float y = (float) (Math.sin(this.pitch) * Math.sin(this.heading));
          float z = (float) Math.cos(this.pitch);

          this.dirVector = new Vector(x, y, z);
          this.dirVector.normalize();

          this.frustMiddle = VectorUtil.add(this.loc, VectorUtil.mult(this.dirVector, this.zHalf + this.nearPlane));

          float viewLength = this.farPlane - this.nearPlane;
          float heightWidth = (float) (viewLength * Math.tan(this.viewAngle * 0.5f));

          Vector farUpCorner = new Vector(heightWidth, heightWidth, viewLength);

          this.frustRadius = (float) Math.sqrt(Math.pow((this.frustMiddle.x - farUpCorner.x), 2) +
                  Math.pow((this.frustMiddle.y - farUpCorner.y), 2) +
                  Math.pow((this.frustMiddle.z - farUpCorner.z), 2));


      }

      public void updateFrustMiddle() {
          float x = (float) (Math.sin(this.pitch) * Math.cos(this.heading));
          float y = (float) (Math.sin(this.pitch) * Math.sin(this.heading));
          float z = (float) Math.cos(this.pitch);

          this.dirVector = new Vector(x, y, z);
          this.dirVector.normalize();

          this.frustMiddle = VectorUtil.add(this.loc, VectorUtil.mult(this.dirVector, this.zHalf + this.nearPlane));

      }
  */
  public void drawCam() {
    GLU glu = new GLU();
    glu.gluLookAt(
        this.loc.x, this.loc.y, this.loc.z, this.ori.x, this.ori.y, this.ori.z, 0.0f, 1.0f, 0.0f);
  }
Ejemplo n.º 10
0
  // display callback function
  public void display(final GLAutoDrawable drawable) {

    final GL gl = drawable.getGL();

    // The usual OpenGL stuff to clear the screen and set up viewing.
    gl.glClearColor(.25f, .25f, .25f, 1.0f);
    gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);

    gl.glMatrixMode(GL.GL_PROJECTION);
    gl.glLoadIdentity();
    glu.gluPerspective(30.0f, 1.0f, .1f, 100);

    gl.glMatrixMode(GL.GL_MODELVIEW);
    gl.glLoadIdentity();
    glu.gluLookAt(4, 4, -4, 0, 0, 0, 0, 1, 0);

    // Make the object rotate a bit each time the display function
    // is called
    gl.glRotatef(curTime, 0, 1, 0);

    // Now make sure that the vertex and fragment programs, loaded
    // in LoadCgPrograms() are bound.
    CgGL.cgGLBindProgram(vertexProgram);
    CgGL.cgGLBindProgram(fragmentProgram);

    // Bind uniform parameters to vertex shader
    CgGL.cgGLSetStateMatrixParameter(
        CgGL.cgGetNamedParameter(vertexProgram, "ModelViewProj"),
        CgGL.CG_GL_MODELVIEW_PROJECTION_MATRIX,
        CgGL.CG_GL_MATRIX_IDENTITY);
    CgGL.cgGLSetStateMatrixParameter(
        CgGL.cgGetNamedParameter(vertexProgram, "ModelView"),
        CgGL.CG_GL_MODELVIEW_MATRIX,
        CgGL.CG_GL_MATRIX_IDENTITY);
    CgGL.cgGLSetStateMatrixParameter(
        CgGL.cgGetNamedParameter(vertexProgram, "ModelViewIT"),
        CgGL.CG_GL_MODELVIEW_MATRIX,
        CgGL.CG_GL_MATRIX_INVERSE_TRANSPOSE);

    // We can also go ahead and bind varying parameters to vertex shader
    // that we just want to have the same value for all vertices. The
    // vertex shader could be modified so that these were uniform for
    // better efficiency, but this gives us flexibility for the future.
    final float Kd[] = {.7f, .2f, .2f}, Ks[] = {.9f, .9f, .9f};
    CgGL.cgGLSetParameter3fv(CgGL.cgGetNamedParameter(vertexProgram, "diffuse"), Kd, 0);
    CgGL.cgGLSetParameter3fv(CgGL.cgGetNamedParameter(vertexProgram, "specular"), Ks, 0);

    // Now bind uniform parameters to fragment shader
    final float lightPos[] = {3, 2, -3};
    CgGL.cgGLSetParameter3fv(CgGL.cgGetNamedParameter(fragmentProgram, "Plight"), lightPos, 0);
    final float lightColor[] = {1, 1, 1};
    CgGL.cgGLSetParameter3fv(
        CgGL.cgGetNamedParameter(fragmentProgram, "lightColor"), lightColor, 0);
    CgGL.cgGLSetParameter1f(CgGL.cgGetNamedParameter(fragmentProgram, "shininess"), 40);

    // And finally, enable the approprate texture for fragment shader; the
    // texture was originally set up in LoadTextures().
    CgGL.cgGLEnableTextureParameter(CgGL.cgGetNamedParameter(fragmentProgram, "diffuseMap"));
    // And go ahead and draw the scene geometry
    DrawGeometry(gl);

    // Disable the texture now that we're done with it.
    CgGL.cgGLDisableTextureParameter(CgGL.cgGetNamedParameter(fragmentProgram, "diffuseMap"));

    ++curTime;
  }
Ejemplo n.º 11
0
 void setLookAt(GLU glu) {
   glu.gluLookAt(ex, ey, ez, cx, cy, cz, ux, uy, uz);
 }
Ejemplo n.º 12
0
  /**
   * Draws the five sides of the hemicube into the provided drawable
   *
   * @param drawable
   * @param which
   * @param near
   * @param far
   * @param bCollect
   */
  public void drawHemiCube(
      GLAutoDrawable drawable, int which, double near, double far, boolean bCollect) {

    // TODO - PART 1 - DRAW HEMICUBE!

    GL gl = drawable.getGL();
    GLU glu = new GLU();

    /* Return the face based on which parameter */
    int[] vertices = scene.getObject().getFace(which);

    /* Find the center of the face */
    /* Center of the face is the average of the three vertices */

    /* Using returned list of vertex indices, find the vertices
     * corresponding to a particular face */
    Vertex v1 = scene.getObject().vertexList.get(vertices[0]);
    Vertex v2 = scene.getObject().vertexList.get(vertices[1]);
    Vertex v3 = scene.getObject().vertexList.get(vertices[2]);

    /* Locate center of face */
    /* Average of three vertices */
    Point3d centerPoint = new Point3d();
    centerPoint = new Point3d(v1.p);
    centerPoint.add(v2.p);
    centerPoint.add(v3.p);
    centerPoint.scale(0.33333);

    /* Set up camera frame */

    /* --- Surface normal --- */
    /* Declare points of vertex for face */
    Point3d p1 = new Point3d(v1.p);
    Point3d p2 = new Point3d(v2.p);
    Point3d p3 = new Point3d(v3.p);

    /* Declare vector u as p2-p1 */
    Point3d uVec = new Point3d(p2);
    uVec.sub(p1);
    Vector3d u = new Vector3d(uVec);

    /* Declare vector v as p3-p1 */
    Point3d vVec = new Point3d(p3);
    vVec.sub(p1);
    Vector3d v = new Vector3d(vVec);

    /* Make normal vector */
    Vector3d norm = new Vector3d();
    norm.cross(u, v);

    /* --- Vectors Orthonormal to Normal --- */
    Point3d vec1pt = new Point3d(p1);
    vec1pt.sub(p2);
    Vector3d vec1 = new Vector3d(vec1pt);
    vec1.cross(vec1, norm); // Cross surface normal with vec1 to get orthogonal vector

    Vector3d vec2 = new Vector3d();
    vec2.cross(
        norm,
        vec1); // Cross product of surface normal with new vector vec1 to get 2nd orthogonal vector

    /* Make unit vectors */
    norm.normalize();
    vec1.normalize();
    vec2.normalize();

    /* Set up the five different frustums, and stitch together using viewPort */
    /* Viewport to set up the view of the scene */

    /* ----- FRONT FACE ----- */
    gl.glPushMatrix();
    gl.glViewport(0, 0, drawable.getWidth(), drawable.getHeight() / 3);

    /* Set up frustums for this face */

    gl.glMatrixMode(gl.GL_PROJECTION);
    gl.glLoadIdentity();
    gl.glFrustum(-near, near, -near, near, near, far);

    /* Position camera at center of specified patch (which) */
    gl.glMatrixMode(gl.GL_MODELVIEW);
    gl.glLoadIdentity();
    glu.gluLookAt(
        centerPoint.x,
        centerPoint.y,
        centerPoint.z,
        centerPoint.x + norm.x,
        centerPoint.y + norm.y,
        centerPoint.z + norm.z,
        centerPoint.x + vec1.x,
        centerPoint.y + vec1.y,
        centerPoint.z + vec1.z);

    /* Draw the frustum to screen */
    draw(drawable, scene.drawStyle.IDENT);
    gl.glPopMatrix();

    /* ----- BOTTOM FACE ----- */
    gl.glPushMatrix();
    gl.glViewport(0, drawable.getHeight() / 3, drawable.getWidth(), drawable.getHeight() / 6);

    gl.glMatrixMode(gl.GL_PROJECTION);
    gl.glLoadIdentity();
    gl.glFrustum(-near, near, 0, near, near, far);

    /* Position camera at center of specified patch (which) */
    gl.glMatrixMode(gl.GL_MODELVIEW);
    gl.glLoadIdentity();
    glu.gluLookAt(
        centerPoint.x,
        centerPoint.y,
        centerPoint.z,
        centerPoint.x + (-vec1.x),
        centerPoint.y + (-vec1.y),
        centerPoint.z + (-vec1.z),
        centerPoint.x + norm.x,
        centerPoint.y + norm.y,
        centerPoint.z + norm.z);

    /* Draw the frustum to screen */
    draw(drawable, scene.drawStyle.IDENT);
    gl.glPopMatrix();

    /* ----- TOP FACE ----- */
    gl.glPushMatrix();
    gl.glViewport(
        0,
        (drawable.getHeight() / 3) + (drawable.getHeight() / 6),
        drawable.getWidth(),
        drawable.getHeight() / 6);

    gl.glMatrixMode(gl.GL_PROJECTION);
    gl.glLoadIdentity();
    gl.glFrustum(-near, near, -near, 0, near, far);

    /* Position camera at center of specified patch (which) */
    gl.glMatrixMode(gl.GL_MODELVIEW);
    gl.glLoadIdentity();
    glu.gluLookAt(
        centerPoint.x,
        centerPoint.y,
        centerPoint.z,
        centerPoint.x + vec1.x,
        centerPoint.y + vec1.y,
        centerPoint.z + vec1.z,
        centerPoint.x - norm.x,
        centerPoint.y - norm.y,
        centerPoint.z - norm.z);

    /* Draw the frustum to screen */
    draw(drawable, scene.drawStyle.IDENT);
    gl.glPopMatrix();

    /* ----- LEFT FACE ----- */
    gl.glPushMatrix();
    gl.glViewport(
        0,
        (drawable.getHeight() / 3) + 2 * (drawable.getHeight() / 6),
        drawable.getWidth(),
        drawable.getHeight() / 6);

    gl.glMatrixMode(gl.GL_PROJECTION);
    gl.glLoadIdentity();
    gl.glFrustum(0, near, -near, near, near, far);

    /* Position camera at center of specified patch (which) */
    gl.glMatrixMode(gl.GL_MODELVIEW);
    gl.glLoadIdentity();
    glu.gluLookAt(
        centerPoint.x,
        centerPoint.y,
        centerPoint.z,
        centerPoint.x + vec2.x,
        centerPoint.y + vec2.y,
        centerPoint.z + vec2.z,
        centerPoint.x + vec1.x,
        centerPoint.y + vec1.y,
        centerPoint.z + vec1.z);

    /* Draw the frustum to screen */
    draw(drawable, scene.drawStyle.IDENT);
    gl.glPopMatrix();

    /* ----- RIGHT FACE ----- */
    gl.glPushMatrix();
    gl.glViewport(
        0,
        (drawable.getHeight() / 3) + 3 * (drawable.getHeight() / 6),
        drawable.getWidth(),
        drawable.getHeight() / 6);

    gl.glMatrixMode(gl.GL_PROJECTION);
    gl.glLoadIdentity();
    gl.glFrustum(near, 0, -near, near, near, far);

    /* Position camera at center of specified patch (which) */
    gl.glMatrixMode(gl.GL_MODELVIEW);
    gl.glLoadIdentity();
    glu.gluLookAt(
        centerPoint.x,
        centerPoint.y,
        centerPoint.z,
        centerPoint.x + (-vec2.x),
        centerPoint.y + (-vec2.y),
        centerPoint.z + (-vec2.z),
        centerPoint.x + vec1.x,
        centerPoint.y + vec1.y,
        centerPoint.z + vec1.z);

    /* Draw the frustum to screen */
    draw(drawable, scene.drawStyle.IDENT);
    gl.glPopMatrix();

    /* ---- End Frustums ---- */

    // if collecting the form factors, then read back and process the data
    if (bCollect) {
      gl.glFlush();
      gl.glFinish();
      gl.glReadPixels(
          0, 0, divisions * 2, divisions * 6, GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, pixelDataBuffer);
      collectData(which);
    }
  }
Ejemplo n.º 13
0
  public void display(GLAutoDrawable gLDrawable) {
    key = Input.keysPressed();

    double dt = (System.currentTimeMillis() - dt_timer) / 1000.0;
    dt_timer = System.currentTimeMillis();

    // Start 3d Rendering
    GL gl = gLDrawable.getGL();

    gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);

    gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);

    gl.glLoadIdentity();

    GLU glu = new GLU();

    // Code to adjust camera
    if (input.getKey(KeyEvent.VK_UP)) z -= .5 * dt;
    if (input.getKey(KeyEvent.VK_DOWN)) z += .5 * dt;

    if (input.getKey(KeyEvent.VK_LEFT)) y -= .5 * dt;
    if (input.getKey(KeyEvent.VK_RIGHT)) y += .5 * dt;
    if (input.getKey(KeyEvent.VK_SPACE)) System.out.println(y + " " + z);

    glu.gluLookAt(0, y, z, 0, 0, -3, 0, 1, 0);

    // orangeNote.drawBar(gLDrawable, zTest);
    // redNote.draw(gLDrawable, -3f, -4f, zTest);
    // yellowNote.draw(gLDrawable, -1.5f, -4f, zTest);
    // blueNote.draw(gLDrawable, 0f, -4f, zTest);
    // greenNote.draw(gLDrawable, 1.5f, -4f, zTest);
    zTest += 0.005f;
    if (zTest > -2f) zTest = -10f;

    gl.glPushMatrix();
    gl.glEnable(GL.GL_BLEND);
    // gl.glRotatef(70,1,-2,1);

    gl.glBegin(GL.GL_QUADS);
    // Draw the Board
    // x goes basically from -1 to 1(camera changed tho)
    // y stays same
    // board length is -z
    gl.glColor4f(40 / 256f, 100 / 256f, 150 / 256f, 1f); // R,G,B,A
    gl.glVertex3f(-3f, -4f, 0f); // x,y,z

    gl.glColor4f(40 / 256f, 100 / 256f, 150 / 256f, 1f);
    gl.glVertex3f(3f, -4f, 0f);

    gl.glColor4f(60 / 256f, 150 / 256f, 200 / 256f, 0f);
    gl.glVertex3f(3f, -4f, -10f);

    gl.glColor4f(60 / 256f, 150 / 256f, 200 / 256f, 0f);
    gl.glVertex3f(-3f, -4f, -10f);

    // All y values on top of the Board must have at least
    // 0.0001f added for some reason
    // Bottom bar - Orange
    gl.glColor4f(255 / 256f, 165 / 256f, 0 / 256f, 1f);
    gl.glVertex3f(-3f, -4f + .0001f, -2.15f); // close left
    gl.glVertex3f(3f, -4f + .0001f, -2.15f); // close right
    gl.glVertex3f(3f, -4f + .0001f, -2.85f); // far right
    gl.glVertex3f(-3f, -4f + .0001f, -2.85f); // far left
    // RedNote
    gl.glColor4f(1f, 0f, 0f, 1f);
    gl.glVertex3f(-3f, -4f + .001f, -2.25f);
    gl.glVertex3f(-1.5f, -4f + .001f, -2.25f);
    gl.glVertex3f(-1.5f, -4f + .001f, -2.75f);
    gl.glVertex3f(-3f, -4f + .001f, -2.75f);
    // YellowNote
    gl.glColor4f(1f, 1f, 0f, 1f);
    gl.glVertex3f(-1.5f, -4f + .001f, -2.25f);
    gl.glVertex3f(0f, -4f + .001f, -2.25f);
    gl.glVertex3f(0f, -4f + .001f, -2.75f);
    gl.glVertex3f(-1.5f, -4f + .001f, -2.75f);
    // BlueNote
    gl.glColor4f(0f, 0f, 1f, 1f);
    gl.glVertex3f(0f, -4f + .001f, -2.25f);
    gl.glVertex3f(1.5f, -4f + .001f, -2.25f);
    gl.glVertex3f(1.5f, -4f + .001f, -2.75f);
    gl.glVertex3f(0f, -4f + .001f, -2.75f);
    // GreenNote
    gl.glColor4f(0f, 1f, 0f, 1f);
    gl.glVertex3f(1.5f, -4f + .001f, -2.25f);
    gl.glVertex3f(3f, -4f + .001f, -2.25f);
    gl.glVertex3f(3f, -4f + .001f, -2.75f);
    gl.glVertex3f(1.5f, -4f + .001f, -2.75f);
    // End Bottom Bar

    this.renderNotes(gLDrawable, dt);

    /////////////////////////////////////
    gl.glEnd();

    gl.glDisable(GL.GL_BLEND);
    gl.glPopMatrix();

    try {
      Thread.sleep(1);
    } catch (Exception e) {
    }
  }