diff options
| author | Sven Gothel <[email protected]> | 2000-11-18 06:43:49 +0000 |
|---|---|---|
| committer | Sven Gothel <[email protected]> | 2000-11-18 06:43:49 +0000 |
| commit | 880653d31a8f1ff8384fdbc75b84934bceecfdb8 (patch) | |
| tree | bdafb71416f176d2a4b73bf716c9dc3f13685a8b /demos/RonsDemos/fog.java | |
Initial revision
Diffstat (limited to 'demos/RonsDemos/fog.java')
| -rw-r--r-- | demos/RonsDemos/fog.java | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/demos/RonsDemos/fog.java b/demos/RonsDemos/fog.java new file mode 100644 index 0000000..7f99c94 --- /dev/null +++ b/demos/RonsDemos/fog.java @@ -0,0 +1,266 @@ +/**
+ * @(#) fog.java
+ * @(#) author: Silicon Graphics (converted to Java by Ron Cemer)
+ */
+
+/*
+ * Copyright (c) 1993-1997, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED
+ * Permission to use, copy, modify, and distribute this software for
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission.
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * US Government Users Restricted Rights
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States. Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(R) is a registered trademark of Silicon Graphics, Inc.
+ */
+
+/*
+ * This program draws 5 red spheres, each at a different
+ * z distance from the eye, in different types of fog.
+ * Pressing the f key chooses between 3 types of
+ * fog: exponential, exponential squared, and linear.
+ * In this program, there is a fixed density value, as well
+ * as fixed start and end values for the linear fog.
+ */
+
+import java.applet.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.lang.*;
+import java.util.*;
+import java.io.*;
+import java.util.*;
+import gl4java.GLContext;
+import gl4java.awt.GLCanvas;
+
+public class fog extends Applet
+{
+ fogCanvas canvas = null;
+
+
+ /* Initialize the applet */
+
+
+ public void init()
+ {
+ Dimension d = getSize();
+ setLayout(new BorderLayout());
+ canvas = new fogCanvas(d.width, d.height);
+ add("Center", canvas);
+ }
+
+
+ /* Start the applet */
+
+
+ public void start()
+ {
+ }
+
+
+ /* Stop the applet */
+
+
+ public void stop()
+ {
+ }
+
+
+ /* Destroy the applet */
+
+
+ public void destroy()
+ {
+ canvas.cvsDispose();
+ }
+
+
+ /* Local GLCanvas extension class */
+
+
+ private class fogCanvas extends GLCanvas implements MouseListener
+ {
+ int fogMode;
+
+ public fogCanvas(int w, int h)
+ {
+ super(w, h);
+ GLContext.gljNativeDebug = false;
+ GLContext.gljClassDebug = false;
+ }
+
+ public void preInit()
+ {
+ doubleBuffer = true;
+ stereoView = false;
+ }
+
+ public void init()
+ {
+ System.out.println("init(): " + this);
+ reshape(getSize().width, getSize().height);
+
+ float position[] = { 0.5f, 0.5f, 3.0f, 0.0f };
+
+ gl.glEnable(GL_DEPTH_TEST);
+
+ gl.glLightfv(GL_LIGHT0, GL_POSITION, position);
+ gl.glEnable(GL_LIGHTING);
+ gl.glEnable(GL_LIGHT0);
+
+ float mat[] = {0.1745f, 0.01175f, 0.01175f};
+ gl.glMaterialfv(GL_FRONT, GL_AMBIENT, mat);
+ mat[0] = 0.61424f; mat[1] = 0.04136f; mat[2] = 0.04136f;
+ gl.glMaterialfv(GL_FRONT, GL_DIFFUSE, mat);
+ mat[0] = 0.727811f; mat[1] = 0.626959f; mat[2] = 0.626959f;
+ gl.glMaterialfv(GL_FRONT, GL_SPECULAR, mat);
+ gl.glMaterialf(GL_FRONT, GL_SHININESS, 0.6f*128.0f);
+
+ gl.glEnable(GL_FOG);
+
+ float fogColor[] = {0.5f, 0.5f, 0.5f, 1.0f};
+ fogMode = GL_EXP;
+ gl.glFogi(GL_FOG_MODE, fogMode);
+ gl.glFogfv(GL_FOG_COLOR, fogColor);
+ gl.glFogf(GL_FOG_DENSITY, 0.35f);
+ gl.glHint(GL_FOG_HINT, GL_DONT_CARE);
+ gl.glFogf(GL_FOG_START, 1.0f);
+ gl.glFogf(GL_FOG_END, 5.0f);
+
+ gl.glClearColor(0.5f, 0.5f, 0.5f, 1.0f); /* fog color */
+
+ glj.gljCheckGL();
+
+ addMouseListener(this);
+ }
+
+ public void cvsDispose()
+ {
+ System.out.println("destroy(): " + this);
+ removeMouseListener(this);
+ super.cvsDispose();
+ }
+
+ public void reshape(int width, int height)
+ {
+ gl.glViewport(0,0,width,height);
+ gl.glMatrixMode(GL_PROJECTION);
+
+ gl.glLoadIdentity();
+ if (width <= height)
+ gl.glOrtho
+ (-2.5f,
+ 2.5f,
+ -2.5f*(float)height/(float)width,
+ 2.5f*(float)height/(float)width,
+ -10.0f,
+ 10.0f);
+ else
+ gl.glOrtho
+ (-2.5f*(float)width/(float)height,
+ 2.5f*(float)width/(float)height,
+ -2.5f,
+ 2.5f,
+ -10.0f,
+ 10.0f);
+ gl.glMatrixMode(GL_MODELVIEW);
+ gl.glLoadIdentity ();
+ }
+
+ public void display()
+ {
+ if (glj.gljMakeCurrent() == false) return;
+
+ gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ renderSphere(-2.0f, -0.5f, -1.0f);
+ renderSphere(-1.0f, -0.5f, -2.0f);
+ renderSphere(0.0f, -0.5f, -3.0f);
+ renderSphere(1.0f, -0.5f, -4.0f);
+ renderSphere(2.0f, -0.5f, -5.0f);
+ gl.glFlush();
+
+ glj.gljSwap();
+ glj.gljCheckGL();
+ glj.gljFree();
+ }
+
+ private void renderSphere(float x, float y, float z)
+ {
+ gl.glPushMatrix();
+ gl.glTranslatef(x, y, z);
+
+ int qobj = glu.gluNewQuadric();
+ glu.gluQuadricOrientation(qobj,GLU_OUTSIDE);
+ glu.gluQuadricNormals(qobj,GLU_SMOOTH);
+ glu.gluQuadricTexture(qobj,false);
+ glu.gluSphere(qobj,0.4f,16,16);
+ glu.gluDeleteQuadric(qobj);
+
+ gl.glPopMatrix();
+ }
+
+ // Methods required for the implementation of MouseListener
+ public void mouseEntered( MouseEvent evt )
+ {
+ }
+
+ public void mouseExited( MouseEvent evt )
+ {
+ }
+
+ public void mousePressed( MouseEvent evt )
+ {
+ if (fogMode == GL_EXP)
+ {
+ fogMode = GL_EXP2;
+ System.out.println("Fog mode is GL_EXP2");
+ }
+ else if (fogMode == GL_EXP2)
+ {
+ fogMode = GL_LINEAR;
+ System.out.println("Fog mode is GL_LINEAR");
+ }
+ else
+ {
+ fogMode = GL_EXP;
+ System.out.println("Fog mode is GL_EXP");
+ }
+ gl.glFogi(GL_FOG_MODE,fogMode);
+ repaint();
+ }
+
+ public void mouseReleased( MouseEvent evt )
+ {
+ }
+
+ public void mouseClicked( MouseEvent evt )
+ {
+ }
+ }
+}
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