/** * GLTest.java */ import java.awt.*; import java.awt.event.*; import net.java.games.jogl.*; public class GLTest { static Animator animator = null; static class Renderer implements GLEventListener, KeyListener { private float rquad = 0.0f; private float rtri = 0.0f; /** Called by the drawable to initiate OpenGL rendering by the client. * After all GLEventListeners have been notified of a display event, the * drawable will swap its buffers if necessary. * @param gLDrawable The GLDrawable object. */ public void display(GLDrawable gLDrawable) { final GL gl = gLDrawable.getGL(); gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT); gl.glLoadIdentity(); gl.glTranslatef(-1.5f, 0.0f, -6.0f); gl.glRotatef(rtri, 0.0f, 1.0f, 0.0f); gl.glBegin(GL.GL_TRIANGLES); // Drawing Using Triangles gl.glColor3f(1.0f,0.0f,0.0f); // Red gl.glVertex3f( 0.0f, 1.0f, 0.0f); // Top Of Triangle (Front) gl.glColor3f(0.0f,1.0f,0.0f); // Green gl.glVertex3f(-1.0f,-1.0f, 1.0f); // Left Of Triangle (Front) gl.glColor3f(0.0f,0.0f,1.0f); // Blue gl.glVertex3f( 1.0f,-1.0f, 1.0f); // Right Of Triangle (Front) gl.glColor3f(1.0f,0.0f,0.0f); // Red gl.glVertex3f( 0.0f, 1.0f, 0.0f); // Top Of Triangle (Right) gl.glColor3f(0.0f,0.0f,1.0f); // Blue gl.glVertex3f( 1.0f,-1.0f, 1.0f); // Left Of Triangle (Right) gl.glColor3f(0.0f,1.0f,0.0f); // Green gl.glVertex3f( 1.0f,-1.0f, -1.0f); // Right Of Triangle (Right) gl.glColor3f(1.0f,0.0f,0.0f); // Red gl.glVertex3f( 0.0f, 1.0f, 0.0f); // Top Of Triangle (Back) gl.glColor3f(0.0f,1.0f,0.0f); // Green gl.glVertex3f( 1.0f,-1.0f, -1.0f); // Left Of Triangle (Back) gl.glColor3f(0.0f,0.0f,1.0f); // Blue gl.glVertex3f(-1.0f,-1.0f, -1.0f); // Right Of Triangle (Back) gl.glColor3f(1.0f,0.0f,0.0f); // Red gl.glVertex3f( 0.0f, 1.0f, 0.0f); // Top Of Triangle (Left) gl.glColor3f(0.0f,0.0f,1.0f); // Blue gl.glVertex3f(-1.0f,-1.0f,-1.0f); // Left Of Triangle (Left) gl.glColor3f(0.0f,1.0f,0.0f); // Green gl.glVertex3f(-1.0f,-1.0f, 1.0f); // Right Of Triangle (Left) gl.glEnd(); // Finished Drawing The Triangle gl.glLoadIdentity(); gl.glTranslatef(1.5f, 0.0f, -6.0f); gl.glRotatef(rquad, 1.0f, 1.0f, 1.0f); gl.glBegin(GL.GL_QUADS); // Draw A Quad gl.glColor3f(0.0f,1.0f,0.0f); // Set The Color To Green gl.glVertex3f( 1.0f, 1.0f,-1.0f); // Top Right Of The Quad (Top) gl.glVertex3f(-1.0f, 1.0f,-1.0f); // Top Left Of The Quad (Top) gl.glVertex3f(-1.0f, 1.0f, 1.0f); // Bottom Left Of The Quad (Top) gl.glVertex3f( 1.0f, 1.0f, 1.0f); // Bottom Right Of The Quad (Top) gl.glColor3f(1.0f,0.5f,0.0f); // Set The Color To Orange gl.glVertex3f( 1.0f,-1.0f, 1.0f); // Top Right Of The Quad (Bottom) gl.glVertex3f(-1.0f,-1.0f, 1.0f); // Top Left Of The Quad (Bottom) gl.glVertex3f(-1.0f,-1.0f,-1.0f); // Bottom Left Of The Quad (Bottom) gl.glVertex3f( 1.0f,-1.0f,-1.0f); // Bottom Right Of The Quad (Bottom) gl.glColor3f(1.0f,0.0f,0.0f); // Set The Color To Red gl.glVertex3f( 1.0f, 1.0f, 1.0f); // Top Right Of The Quad (Front) gl.glVertex3f(-1.0f, 1.0f, 1.0f); // Top Left Of The Quad (Front) gl.glVertex3f(-1.0f,-1.0f, 1.0f); // Bottom Left Of The Quad (Front) gl.glVertex3f( 1.0f,-1.0f, 1.0f); // Bottom Right Of The Quad (Front) gl.glColor3f(1.0f,1.0f,0.0f); // Set The Color To Yellow gl.glVertex3f( 1.0f,-1.0f,-1.0f); // Bottom Left Of The Quad (Back) gl.glVertex3f(-1.0f,-1.0f,-1.0f); // Bottom Right Of The Quad (Back) gl.glVertex3f(-1.0f, 1.0f,-1.0f); // Top Right Of The Quad (Back) gl.glVertex3f( 1.0f, 1.0f,-1.0f); // Top Left Of The Quad (Back) gl.glColor3f(0.0f,0.0f,1.0f); // Set The Color To Blue gl.glVertex3f(-1.0f, 1.0f, 1.0f); // Top Right Of The Quad (Left) gl.glVertex3f(-1.0f, 1.0f,-1.0f); // Top Left Of The Quad (Left) gl.glVertex3f(-1.0f,-1.0f,-1.0f); // Bottom Left Of The Quad (Left) gl.glVertex3f(-1.0f,-1.0f, 1.0f); // Bottom Right Of The Quad (Left) gl.glColor3f(1.0f,0.0f,1.0f); // Set The Color To Violet gl.glVertex3f( 1.0f, 1.0f,-1.0f); // Top Right Of The Quad (Right) gl.glVertex3f( 1.0f, 1.0f, 1.0f); // Top Left Of The Quad (Right) gl.glVertex3f( 1.0f,-1.0f, 1.0f); // Bottom Left Of The Quad (Right) gl.glVertex3f( 1.0f,-1.0f,-1.0f); // Bottom Right Of The Quad (Right) gl.glEnd(); // Done Drawing The Quad gl.glFlush(); rtri += 0.2f; rquad += 0.15f; } /** Called when the display mode has been changed. !! CURRENTLY UNIMPLEMENTED IN JOGL !! * @param gLDrawable The GLDrawable object. * @param modeChanged Indicates if the video mode has changed. * @param deviceChanged Indicates if the video device has changed. */ public void displayChanged(GLDrawable gLDrawable, boolean modeChanged, boolean deviceChanged) { } /** Called by the drawable immediately after the OpenGL context is * initialized for the first time. Can be used to perform one-time OpenGL * initialization such as setup of lights and display lists. * @param gLDrawable The GLDrawable object. */ public void init(GLDrawable gLDrawable) { final GL gl = gLDrawable.getGL(); gl.glShadeModel(GL.GL_SMOOTH); // Enable Smooth Shading gl.glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background gl.glClearDepth(1.0f); // Depth Buffer Setup gl.glEnable(GL.GL_DEPTH_TEST); // Enables Depth Testing gl.glDepthFunc(GL.GL_LEQUAL); // The Type Of Depth Testing To Do gl.glHint(GL.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST); // Really Nice Perspective Calculations gLDrawable.addKeyListener(this); } /** Called by the drawable during the first repaint after the component has * been resized. The client can update the viewport and view volume of the * window appropriately, for example by a call to * GL.glViewport(int, int, int, int); note that for convenience the component * has already called GL.glViewport(int, int, int, int)(x, y, width, height) * when this method is called, so the client may not have to do anything in * this method. * @param gLDrawable The GLDrawable object. * @param x The X Coordinate of the viewport rectangle. * @param y The Y coordinate of the viewport rectanble. * @param width The new width of the window. * @param height The new height of the window. */ public void reshape(GLDrawable gLDrawable, int x, int y, int width, int height) { final GL gl = gLDrawable.getGL(); final GLU glu = gLDrawable.getGLU(); if (height <= 0) // avoid a divide by zero error! height = 1; final float h = (float)width / (float)height; gl.glViewport(0, 0, width, height); gl.glMatrixMode(GL.GL_PROJECTION); gl.glLoadIdentity(); glu.gluPerspective(45.0f, h, 1.0, 20.0); gl.glMatrixMode(GL.GL_MODELVIEW); gl.glLoadIdentity(); } /** Invoked when a key has been pressed. * See the class description for {@link KeyEvent} for a definition of * a key pressed event. * @param e The KeyEvent. */ public void keyPressed(KeyEvent e) { if (e.getKeyCode() == KeyEvent.VK_ESCAPE) { animator.stop(); System.exit(0); } } /** Invoked when a key has been released. * See the class description for {@link KeyEvent} for a definition of * a key released event. * @param e The KeyEvent. */ public void keyReleased(KeyEvent e) {} /** Invoked when a key has been typed. * See the class description for {@link KeyEvent} for a definition of * a key typed event. * @param e The KeyEvent. */ public void keyTyped(KeyEvent e) {} } /** Program's main entry point * @param args command line arguments. */ public static void main(String[] args) { Frame frame = new Frame("GLTest"); GLCanvas canvas = GLDrawableFactory.getFactory().createGLCanvas(new GLCapabilities()); canvas.addGLEventListener(new Renderer()); frame.add(canvas); frame.setSize(800, 600); animator = new Animator(canvas); frame.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { animator.stop(); System.exit(0); } }); frame.show(); animator.start(); canvas.requestFocus(); } }