diff options
author | Kenneth Russel <kbrussel@alum.mit.edu> | 2006-05-28 12:02:56 +0000 |
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committer | Kenneth Russel <kbrussel@alum.mit.edu> | 2006-05-28 12:02:56 +0000 |
commit | d33e7eecd9bb5b020a27bb4a8b1098079aa73f3f (patch) | |
tree | f6210846de24db8f0bd42779f73847c3b197f75f /src/demos/particles/engine/GLComponent.java | |
parent | 1b5b0e510f2ef559ab0016156bcf7143d6cf48a8 (diff) |
Incorporated Particle Engine demo contributed by Ben Chappell. Added
description and launch link to jogl-demos web page, currently
commented out in HTML until JSR-231 beta 5 is released.
git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@178 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
Diffstat (limited to 'src/demos/particles/engine/GLComponent.java')
-rwxr-xr-x | src/demos/particles/engine/GLComponent.java | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/demos/particles/engine/GLComponent.java b/src/demos/particles/engine/GLComponent.java new file mode 100755 index 0000000..299578f --- /dev/null +++ b/src/demos/particles/engine/GLComponent.java @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2006 Ben Chappell (bwchappell@gmail.com) All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * - Redistribution of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistribution in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * The names of Ben Chappell, Sun Microsystems, Inc. or the names of + * contributors may not be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * This software is provided "AS IS," without a warranty of any kind. ALL + * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, + * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A + * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. BEN CHAPPELL, + * SUN MICROSYSTEMS, INC. ("SUN"), AND SUN'S LICENSORS SHALL NOT BE LIABLE FOR + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL BEN + * CHAPPELL, SUN, OR SUN'S LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT + * OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR + * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, + * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF BEN + * CHAPPELL OR SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. + * + * You acknowledge that this software is not designed or intended for use + * in the design, construction, operation or maintenance of any nuclear + * facility. + */ + +package demos.particles.engine; + +import javax.media.opengl.*; +import javax.media.opengl.glu.*; +import com.sun.opengl.util.*; + +import java.io.*; + +public class GLComponent extends GLCanvas implements GLEventListener { + + private GLU glu; + private FPSAnimator animator; + private RGBA background; + private RGBA ambient; + private Engine engine; + + public GLComponent(int fps, RGBA ambient, RGBA background, Engine engine) { + super(getCapabilities()); + addGLEventListener(this); + glu = new GLU(); + + this.background=background; + this.ambient=ambient; + this.engine=engine; + + animator = new FPSAnimator(this, fps); + } + + private static GLCapabilities getCapabilities() { + GLCapabilities caps = new GLCapabilities(); + caps.setDoubleBuffered(true); + caps.setHardwareAccelerated(true); + return caps; + } + + public void display(GLAutoDrawable drawable) { + final GL gl = drawable.getGL(); + engine.draw(gl); + } + + + + public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) { + + } + + public void init(GLAutoDrawable drawable) { + final GL gl = drawable.getGL(); + + gl.glShadeModel(GL.GL_SMOOTH); + // Set the background / clear color. + gl.glClearColor(background.r, background.g, background.b, background.a); + // Clear the depth + gl.glClearDepth(1.0); + // Disable depth testing. + gl.glDisable(GL.GL_DEPTH_TEST); + // Enable blending and specify blening function. + gl.glEnable(GL.GL_BLEND); + gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE); + // Get nice perspective calculations. + gl.glHint(GL.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST); + // Nice point smoothing. + gl.glHint(GL.GL_POINT_SMOOTH_HINT, GL.GL_NICEST); + // Enable texture mapping. + gl.glEnable(GL.GL_TEXTURE_2D); + + animator.start(); + + engine.init(); + + } + + public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { + GL gl = drawable.getGL(); + // the size of openGL + gl.glViewport(0,0, width, height); + + // perspective view (smaller for further behind) + gl.glMatrixMode(GL.GL_PROJECTION); + gl.glLoadIdentity(); + + // perspective + double ratio = (double)width/(double)height; + // angle, ratio, nearest, farthest + glu.gluPerspective(45.0, ratio, 0.0, 1.0); + + // draw into the model matrix now + gl.glMatrixMode(GL.GL_MODELVIEW); + gl.glLoadIdentity(); + } + + public void setFPS(int fps) { + animator.stop(); + animator = new FPSAnimator(this, fps); + animator.start(); + } + + public void kill() { + animator.stop(); + } +} |