276 lines
10 KiB
Java
276 lines
10 KiB
Java
/*
|
|
* Copyright (c) 2002-2008 LWJGL Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* * Redistributions 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.
|
|
*
|
|
* * Neither the name of 'LWJGL' nor the names of
|
|
* its contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
package org.lwjgl.test.opengl.awt;
|
|
|
|
import java.awt.Frame;
|
|
import java.awt.Color;
|
|
import java.awt.event.WindowAdapter;
|
|
import java.awt.event.WindowEvent;
|
|
import java.nio.FloatBuffer;
|
|
|
|
import org.lwjgl.BufferUtils;
|
|
import org.lwjgl.LWJGLException;
|
|
import org.lwjgl.opengl.ARBTransposeMatrix;
|
|
import org.lwjgl.opengl.AWTGLCanvas;
|
|
import org.lwjgl.opengl.GL11;
|
|
import org.lwjgl.opengl.GLContext;
|
|
|
|
/**
|
|
* <p>
|
|
* AWT version of the gears demo
|
|
* <p>
|
|
* @version $Revision$
|
|
* @author Brian Matzon <brian@matzon.dk>
|
|
* $Id$
|
|
*/
|
|
public class AWTGears extends Frame {
|
|
|
|
/** AWT GL canvas */
|
|
private AWTGLCanvas canvas0;
|
|
|
|
private float view_rotx = 20.0f;
|
|
|
|
private float view_roty = 30.0f;
|
|
|
|
private float view_rotz = 0.0f;
|
|
|
|
private int gear1;
|
|
|
|
private int gear2;
|
|
|
|
private int gear3;
|
|
|
|
private float angle = 0.0f;
|
|
|
|
/**
|
|
* C'tor
|
|
*/
|
|
public AWTGears() throws LWJGLException {
|
|
setTitle("Gears");
|
|
setBackground(Color.BLACK);
|
|
AWTGearsCanvas canvas = new AWTGearsCanvas();
|
|
canvas.setSize(300, 300);
|
|
add(canvas);
|
|
addWindowListener(new WindowAdapter() {
|
|
public void windowClosing(WindowEvent e) {
|
|
dispose();
|
|
System.exit(0);
|
|
}
|
|
});
|
|
setResizable(true);
|
|
pack();
|
|
setVisible(true);
|
|
}
|
|
|
|
private void setup() {
|
|
// setup ogl
|
|
FloatBuffer pos = BufferUtils.createFloatBuffer(4).put(new float[] { 5.0f, 5.0f, 10.0f, 0.0f});
|
|
FloatBuffer red = BufferUtils.createFloatBuffer(4).put(new float[] { 0.8f, 0.1f, 0.0f, 1.0f});
|
|
FloatBuffer green = BufferUtils.createFloatBuffer(4).put(new float[] { 0.0f, 0.8f, 0.2f, 1.0f});
|
|
FloatBuffer blue = BufferUtils.createFloatBuffer(4).put(new float[] { 0.2f, 0.2f, 1.0f, 1.0f});
|
|
pos.flip();
|
|
red.flip();
|
|
green.flip();
|
|
blue.flip();
|
|
|
|
GL11.glLight(GL11.GL_LIGHT0, GL11.GL_POSITION, pos);
|
|
GL11.glEnable(GL11.GL_CULL_FACE);
|
|
GL11.glEnable(GL11.GL_LIGHTING);
|
|
GL11.glEnable(GL11.GL_LIGHT0);
|
|
GL11.glEnable(GL11.GL_DEPTH_TEST);
|
|
|
|
/* make the gears */
|
|
gear1 = GL11.glGenLists(1);
|
|
GL11.glNewList(gear1, GL11.GL_COMPILE);
|
|
GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, red);
|
|
gear(1.0f, 4.0f, 1.0f, 20, 0.7f);
|
|
GL11.glEndList();
|
|
|
|
gear2 = GL11.glGenLists(1);
|
|
GL11.glNewList(gear2, GL11.GL_COMPILE);
|
|
GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, green);
|
|
gear(0.5f, 2.0f, 2.0f, 10, 0.7f);
|
|
GL11.glEndList();
|
|
|
|
gear3 = GL11.glGenLists(1);
|
|
GL11.glNewList(gear3, GL11.GL_COMPILE);
|
|
GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, blue);
|
|
gear(1.3f, 2.0f, 0.5f, 10, 0.7f);
|
|
GL11.glEndList();
|
|
|
|
GL11.glEnable(GL11.GL_NORMALIZE);
|
|
|
|
GL11.glMatrixMode(GL11.GL_PROJECTION);
|
|
|
|
System.err.println("GL_VENDOR: " + GL11.glGetString(GL11.GL_VENDOR));
|
|
System.err.println("GL_RENDERER: " + GL11.glGetString(GL11.GL_RENDERER));
|
|
System.err.println("GL_VERSION: " + GL11.glGetString(GL11.GL_VERSION));
|
|
System.err.println();
|
|
System.err.println("glLoadTransposeMatrixfARB() supported: " + GLContext.getCapabilities().GL_ARB_transpose_matrix);
|
|
if (!GLContext.getCapabilities().GL_ARB_transpose_matrix) {
|
|
// --- not using extensions
|
|
GL11.glLoadIdentity();
|
|
} else {
|
|
// --- using extensions
|
|
final FloatBuffer identityTranspose = BufferUtils.createFloatBuffer(16).put(
|
|
new float[] { 1, 0, 0, 0, 0, 1, 0, 0,
|
|
0, 0, 1, 0, 0, 0, 0, 1});
|
|
identityTranspose.flip();
|
|
ARBTransposeMatrix.glLoadTransposeMatrixARB(identityTranspose);
|
|
}
|
|
|
|
float h = (float) 300 / (float) 300;
|
|
GL11.glFrustum(-1.0f, 1.0f, -h, h, 5.0f, 60.0f);
|
|
GL11.glMatrixMode(GL11.GL_MODELVIEW);
|
|
GL11.glLoadIdentity();
|
|
GL11.glTranslatef(0.0f, 0.0f, -40.0f);
|
|
}
|
|
|
|
/**
|
|
* Draw a gear wheel. You'll probably want to call this function when
|
|
* building a display list since we do a lot of trig here.
|
|
*
|
|
* @param inner_radius radius of hole at center
|
|
* @param outer_radius radius at center of teeth
|
|
* @param width width of gear
|
|
* @param teeth number of teeth
|
|
* @param tooth_depth depth of tooth
|
|
*/
|
|
private void gear(float inner_radius, float outer_radius, float width, int teeth, float tooth_depth) {
|
|
int i;
|
|
float r0, r1, r2;
|
|
float angle, da;
|
|
float u, v, len;
|
|
|
|
r0 = inner_radius;
|
|
r1 = outer_radius - tooth_depth / 2.0f;
|
|
r2 = outer_radius + tooth_depth / 2.0f;
|
|
|
|
da = 2.0f * (float) Math.PI / teeth / 4.0f;
|
|
|
|
GL11.glShadeModel(GL11.GL_FLAT);
|
|
|
|
GL11.glNormal3f(0.0f, 0.0f, 1.0f);
|
|
|
|
/* draw front face */
|
|
GL11.glBegin(GL11.GL_QUAD_STRIP);
|
|
for (i = 0; i <= teeth; i++) {
|
|
angle = i * 2.0f * (float) Math.PI / teeth;
|
|
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
|
|
if (i < teeth) {
|
|
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3.0f * da), r1 * (float) Math.sin(angle + 3.0f * da),
|
|
width * 0.5f);
|
|
}
|
|
}
|
|
GL11.glEnd();
|
|
|
|
/* draw front sides of teeth */
|
|
GL11.glBegin(GL11.GL_QUADS);
|
|
for (i = 0; i < teeth; i++) {
|
|
angle = i * 2.0f * (float) Math.PI / teeth;
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
|
|
GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), width * 0.5f);
|
|
GL11.glVertex3f(r2 * (float) Math.cos(angle + 2.0f * da), r2 * (float) Math.sin(angle + 2.0f * da), width * 0.5f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3.0f * da), r1 * (float) Math.sin(angle + 3.0f * da), width * 0.5f);
|
|
}
|
|
GL11.glEnd();
|
|
|
|
/* draw back face */
|
|
GL11.glBegin(GL11.GL_QUAD_STRIP);
|
|
for (i = 0; i <= teeth; i++) {
|
|
angle = i * 2.0f * (float) Math.PI / teeth;
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
|
|
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
|
|
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
|
|
}
|
|
GL11.glEnd();
|
|
|
|
/* draw back sides of teeth */
|
|
GL11.glBegin(GL11.GL_QUADS);
|
|
for (i = 0; i < teeth; i++) {
|
|
angle = i * 2.0f * (float) Math.PI / teeth;
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
|
|
GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), -width * 0.5f);
|
|
GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), -width * 0.5f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
|
|
}
|
|
GL11.glEnd();
|
|
|
|
/* draw outward faces of teeth */
|
|
GL11.glBegin(GL11.GL_QUAD_STRIP);
|
|
for (i = 0; i < teeth; i++) {
|
|
angle = i * 2.0f * (float) Math.PI / teeth;
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), width * 0.5f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle), r1 * (float) Math.sin(angle), -width * 0.5f);
|
|
u = r2 * (float) Math.cos(angle + da) - r1 * (float) Math.cos(angle);
|
|
v = r2 * (float) Math.sin(angle + da) - r1 * (float) Math.sin(angle);
|
|
len = (float) Math.sqrt(u * u + v * v);
|
|
u /= len;
|
|
v /= len;
|
|
GL11.glNormal3f(v, -u, 0.0f);
|
|
GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), width * 0.5f);
|
|
GL11.glVertex3f(r2 * (float) Math.cos(angle + da), r2 * (float) Math.sin(angle + da), -width * 0.5f);
|
|
GL11.glNormal3f((float) Math.cos(angle), (float) Math.sin(angle), 0.0f);
|
|
GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), width * 0.5f);
|
|
GL11.glVertex3f(r2 * (float) Math.cos(angle + 2 * da), r2 * (float) Math.sin(angle + 2 * da), -width * 0.5f);
|
|
u = r1 * (float) Math.cos(angle + 3 * da) - r2 * (float) Math.cos(angle + 2 * da);
|
|
v = r1 * (float) Math.sin(angle + 3 * da) - r2 * (float) Math.sin(angle + 2 * da);
|
|
GL11.glNormal3f(v, -u, 0.0f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), width * 0.5f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(angle + 3 * da), r1 * (float) Math.sin(angle + 3 * da), -width * 0.5f);
|
|
GL11.glNormal3f((float) Math.cos(angle), (float) Math.sin(angle), 0.0f);
|
|
}
|
|
GL11.glVertex3f(r1 * (float) Math.cos(0), r1 * (float) Math.sin(0), width * 0.5f);
|
|
GL11.glVertex3f(r1 * (float) Math.cos(0), r1 * (float) Math.sin(0), -width * 0.5f);
|
|
GL11.glEnd();
|
|
|
|
GL11.glShadeModel(GL11.GL_SMOOTH);
|
|
|
|
/* draw inside radius cylinder */
|
|
GL11.glBegin(GL11.GL_QUAD_STRIP);
|
|
for (i = 0; i <= teeth; i++) {
|
|
angle = i * 2.0f * (float) Math.PI / teeth;
|
|
GL11.glNormal3f(-(float) Math.cos(angle), -(float) Math.sin(angle), 0.0f);
|
|
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), -width * 0.5f);
|
|
GL11.glVertex3f(r0 * (float) Math.cos(angle), r0 * (float) Math.sin(angle), width * 0.5f);
|
|
}
|
|
GL11.glEnd();
|
|
}
|
|
|
|
public static void main(String[] args) throws LWJGLException {
|
|
new AWTGears();
|
|
}
|
|
}
|