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/**
* @(#) teaambient.java
* @(#) author: Silicon Graphics, Inc. (converted to Java by Ron Cemer)
*/
/*
* This program demonstrates lots of material properties.
* A single light source illuminates the objects.
*/
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;
import gl4java.utils.glut.*;
public class teaambient extends Applet
{
teaambientCanvas canvas = null;
/* Initialize the applet */
public void init()
{
Dimension d = getSize();
setLayout(new BorderLayout());
canvas = new teaambientCanvas(d.width, d.height);
add("Center", canvas);
}
/* Start the applet */
public void start()
{
}
/* Stop the applet */
public void stop()
{
}
public static void main( String args[] )
{
Frame mainFrame = new Frame("teaambient");
teaambient applet = new teaambient();
applet.setSize(400, 600);
applet.init();
applet.start();
mainFrame.add(applet);
mainFrame.pack();
mainFrame.setVisible(true);
}
/* Local GLCanvas extension class */
private class teaambientCanvas extends GLCanvas
{
GLUTFunc glut = null;
public teaambientCanvas(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);
glut = new GLUTFuncLightImpl(gl, glu);
reshape(getSize().width, getSize().height);
float light_ambient[] =
{0.0f, 0.0f, 0.0f, 1.0f};
float light_diffuse[] =
{1.0f, 1.0f, 1.0f, 1.0f};
float light_specular[] =
{1.0f, 1.0f, 1.0f, 1.0f};
/* light_position is NOT default value */
float light_position[] =
{1.0f, 0.0f, 0.0f, 0.0f};
float global_ambient[] =
{0.75f, 0.75f, 0.75f, 1.0f};
gl.glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
gl.glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
gl.glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
gl.glLightfv(GL_LIGHT0, GL_POSITION, light_position);
gl.glLightModelfv(GL_LIGHT_MODEL_AMBIENT, global_ambient);
gl.glFrontFace(GL_CW);
gl.glEnable(GL_LIGHTING);
gl.glEnable(GL_LIGHT0);
gl.glEnable(GL_AUTO_NORMAL);
gl.glEnable(GL_NORMALIZE);
gl.glDepthFunc(GL_LESS);
gl.glEnable(GL_DEPTH_TEST);
}
public void display()
{
if (glj.gljMakeCurrent() == false) return;
float low_ambient[] =
{0.1f, 0.1f, 0.1f, 1.0f};
float more_ambient[] =
{0.4f, 0.4f, 0.4f, 1.0f};
float most_ambient[] =
{1.0f, 1.0f, 1.0f, 1.0f};
gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/* material has small ambient reflection */
gl.glMaterialfv(GL_FRONT, GL_AMBIENT, low_ambient);
gl.glMaterialf(GL_FRONT, GL_SHININESS, 40.0f);
gl.glPushMatrix();
gl.glTranslatef(0.0f, 2.0f, 0.0f);
glut.glutSolidTeapot(1.0f);
gl.glPopMatrix();
/* material has moderate ambient reflection */
gl.glMaterialfv(GL_FRONT, GL_AMBIENT, more_ambient);
gl.glPushMatrix();
gl.glTranslatef(0.0f, 0.0f, 0.0f);
glut.glutSolidTeapot(1.0f);
gl.glPopMatrix();
/* material has large ambient reflection */
gl.glMaterialfv(GL_FRONT, GL_AMBIENT, most_ambient);
gl.glPushMatrix();
gl.glTranslatef(0.0f, -2.0f, 0.0f);
glut.glutSolidTeapot(1.0f);
gl.glPopMatrix();
glj.gljSwap();
glj.gljCheckGL();
glj.gljFree();
}
public void reshape(int w, int h)
{
gl.glViewport(0, 0, w, h);
gl.glMatrixMode(GL_PROJECTION);
gl.glLoadIdentity();
if (w <= h)
gl.glOrtho(-4.0f, 4.0f, -4.0f * (float) h / (float) w,
4.0f * (float) h / (float) w, -10.0f, 10.0f);
else
gl.glOrtho(-4.0f * (float) w / (float) h,
4.0f * (float) w / (float) h, -4.0f, 4.0f, -10.0f, 10.0f);
gl.glMatrixMode(GL_MODELVIEW);
}
}
}
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