jogl sample

SimpleScene.java

// Modified from
// JOGL Tutorial 3 - Creating a Render Loop - Justin's Home
// https://sites.google.com/site/justinscsstuff/jogl-tutorial-3
// for jogl-1.1.1

import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.media.opengl.*;
//import javax.media.opengl.awt.GLCanvas;
//import com.jogamp.opengl.util.*;

import com.sun.opengl.util.Animator;
import com.sun.opengl.util.FPSAnimator;

public class SimpleScene implements GLEventListener {
  private double theta = 0;
  private double s = 0;
  private double c = 0;

  public static void main(String[] args) {
    //GLProfile glp = GLProfile.getDefault();
    GLCapabilities caps = new GLCapabilities(/*glp*/);
    GLCanvas canvas = new GLCanvas(caps);

    Frame frame = new Frame("AWT Window Test");
    frame.setSize(300, 300);
    frame.add(canvas);
    frame.setVisible(true);

    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });

    canvas.addGLEventListener(new SimpleScene());

    Animator animator = new FPSAnimator(canvas, 60);
    animator.add(canvas);
    animator.start();
  }

  @Override public void display(GLAutoDrawable drawable) {
    update();
    render(drawable);
  }

  //@Override public void dispose(GLAutoDrawable drawable) {
  //}

  @Override public void init(GLAutoDrawable drawable) {
  }

  @Override public void reshape(GLAutoDrawable drawable, int x, int y, int w, int h) {
  }

  @Override public void displayChanged(GLAutoDrawable arg0, boolean arg1, boolean arg2) {
    // TODO Auto-generated method stub
  }

  private void update() {
    theta += 0.01;
    s = Math.sin(theta);
    c = Math.cos(theta);
  }

  private void render(GLAutoDrawable drawable) {
    //GL2 gl = drawable.getGL().getGL2();
    GL gl = drawable.getGL();

    gl.glClear(GL.GL_COLOR_BUFFER_BIT);

    // draw a triangle filling the window
    gl.glBegin(GL.GL_TRIANGLES);
    gl.glColor3f(1, 0, 0);
    gl.glVertex2d(-c, -c);
    gl.glColor3f(0, 1, 0);
    gl.glVertex2d(0, c);
    gl.glColor3f(0, 0, 1);
    gl.glVertex2d(s, -s);
    gl.glEnd();
  }
}