diff options
Diffstat (limited to 'demos/RonsDemos/molehill.java')
| -rw-r--r-- | demos/RonsDemos/molehill.java | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/demos/RonsDemos/molehill.java b/demos/RonsDemos/molehill.java new file mode 100644 index 0000000..8dbe12e --- /dev/null +++ b/demos/RonsDemos/molehill.java @@ -0,0 +1,286 @@ +/**
+ * @(#) molehill.java
+ * @(#) author: unknown (converted to Java by Ron Cemer)
+ */
+
+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 molehill extends Applet
+{
+ molehillCanvas canvas = null;
+
+
+ /* Initialize the applet */
+
+
+ public void init()
+ {
+ Dimension d = getSize();
+ setLayout(new BorderLayout());
+ canvas = new molehillCanvas(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();
+ }
+
+
+ public static void main( String args[] )
+ {
+ Frame mainFrame = new Frame("molehill");
+
+ molehill applet = new molehill();
+
+ applet.setSize(400, 400);
+ applet.init();
+ applet.start();
+
+ mainFrame.add(applet);
+
+ mainFrame.pack();
+ mainFrame.setVisible(true);
+ }
+
+ /* Local GLCanvas extension class */
+
+
+ private class molehillCanvas extends GLCanvas
+ {
+ float mat_red_diffuse[] = { 0.7f, 0.0f, 0.1f, 1.0f };
+ float mat_green_diffuse[] = { 0.0f, 0.7f, 0.1f, 1.0f };
+ float mat_blue_diffuse[] = { 0.0f, 0.1f, 0.7f, 1.0f };
+ float mat_yellow_diffuse[] = { 0.7f, 0.8f, 0.1f, 1.0f };
+ float mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
+ float mat_shininess[] = { 100.0f };
+ float knots[] = { 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f };
+ float pts1[] = new float[4*4*3];
+ float pts2[] = new float[4*4*3];
+ float pts3[] = new float[4*4*3];
+ float pts4[] = new float[4*4*3];
+ int nurb;
+ int u, v;
+
+ public molehillCanvas(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);
+
+ gl.glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
+ gl.glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
+ gl.glEnable(GL_LIGHTING);
+ gl.glEnable(GL_LIGHT0);
+ gl.glEnable(GL_DEPTH_TEST);
+ gl.glEnable(GL_AUTO_NORMAL);
+ gl.glEnable(GL_NORMALIZE);
+ nurb = glu.gluNewNurbsRenderer();
+ glu.gluNurbsProperty(nurb, GLU_SAMPLING_TOLERANCE, 25.0f);
+ glu.gluNurbsProperty(nurb, GLU_DISPLAY_MODE, GLU_FILL);
+
+ /* Build control points for NURBS mole hills. */
+ for(u=0; u<4; u++)
+ {
+ for(v=0; v<4; v++)
+ {
+ /* Red. */
+ pts1[(u*12)+(v*3)+0] = 2.0f*((float)u);
+ pts1[(u*12)+(v*3)+1] = 2.0f*((float)v);
+ if((u==1 || u == 2) && (v == 1 || v == 2))
+ pts1[(u*12)+(v*3)+2] = 6.0f; /* Stretch up middle. */
+ else
+ pts1[(u*12)+(v*3)+2] = 0.0f;
+
+ /* Green. */
+ pts2[(u*12)+(v*3)+0] = 2.0f*((float)u - 3.0f);
+ pts2[(u*12)+(v*3)+1] = 2.0f*((float)v - 3.0f);
+ if((u==1 || u == 2) && (v == 1 || v == 2))
+ if(u == 1 && v == 1)
+ pts2[(u*12)+(v*3)+2] = 15.0f; /* Pull hard on single middle square. */
+ else
+ pts2[(u*12)+(v*3)+2] = -2.0f; /* Push down on other middle squares. */
+ else
+ pts2[(u*12)+(v*3)+2] = 0.0f;
+
+ /* Blue. */
+ pts3[(u*12)+(v*3)+0] = 2.0f*((float)u - 3.0f);
+ pts3[(u*12)+(v*3)+1] = 2.0f*((float)v);
+ if((u==1 || u == 2) && (v == 1 || v == 2))
+ if(u == 1 && v == 2)
+ pts3[(u*12)+(v*3)+2] = 11.0f; /* Pull up on single middple square. */
+ else
+ pts3[(u*12)+(v*3)+2] = 2.0f; /* Pull up slightly on other middle squares. */
+ else
+ pts3[(u*12)+(v*3)+2] = 0.0f;
+
+ /* Yellow. */
+ pts4[(u*12)+(v*3)+0] = 2.0f*((float)u);
+ pts4[(u*12)+(v*3)+1] = 2.0f*((float)v - 3.0f);
+ if((u==1 || u == 2 || u == 3) && (v == 1 || v == 2))
+ if(v == 1)
+ pts4[(u*12)+(v*3)+2] = -2.0f; /* Push down front middle and right squares. */
+ else
+ pts4[(u*12)+(v*3)+2] = 5.0f; /* Pull up back middle and right squares. */
+ else
+ pts4[(u*12)+(v*3)+2] = 0.0f;
+ }
+ }
+
+ /* Stretch up red's far right corner. */
+ pts1[(3*12)+(3*3)+2] = 6;
+ /* Pull down green's near left corner a little. */
+ pts2[(0*12)+(0*3)+2] = -2;
+ /* Turn up meeting of four corners. */
+ pts1[(0*12)+(0*3)+2] = 1;
+ pts2[(3*12)+(3*3)+2] = 1;
+ pts3[(3*12)+(0*3)+2] = 1;
+ pts4[(0*12)+(3*3)+2] = 1;
+
+ gl.glMatrixMode(GL_PROJECTION);
+ glu.gluPerspective(55.0f, 1.0f, 2.0f, 24.0f);
+ gl.glMatrixMode(GL_MODELVIEW);
+ gl.glTranslatef(0.0f, 0.0f, -15.0f);
+ gl.glRotatef(330.0f, 1.0f, 0.0f, 0.0f);
+
+ gl.glNewList(1, GL_COMPILE);
+
+ /* Render red hill. */
+ gl.glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_red_diffuse);
+ glu.gluBeginSurface(nurb);
+ glu.gluNurbsSurface
+ (nurb,
+ 8,
+ knots,
+ 8,
+ knots,
+ (4 * 3),
+ 3,
+ pts1,
+ 4,
+ 4,
+ GL_MAP2_VERTEX_3);
+ glu.gluEndSurface(nurb);
+
+ /* Render green hill. */
+ gl.glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_green_diffuse);
+ glu.gluBeginSurface(nurb);
+ glu.gluNurbsSurface
+ (nurb,
+ 8,
+ knots,
+ 8,
+ knots,
+ (4 * 3),
+ 3,
+ pts2,
+ 4,
+ 4,
+ GL_MAP2_VERTEX_3);
+ glu.gluEndSurface(nurb);
+
+ /* Render blue hill. */
+ gl.glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_blue_diffuse);
+ glu.gluBeginSurface(nurb);
+ glu.gluNurbsSurface
+ (nurb,
+ 8,
+ knots,
+ 8,
+ knots,
+ (4 * 3),
+ 3,
+ pts3,
+ 4,
+ 4,
+ GL_MAP2_VERTEX_3);
+ glu.gluEndSurface(nurb);
+
+ /* Render yellow hill. */
+ gl.glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_yellow_diffuse);
+ glu.gluBeginSurface(nurb);
+ glu.gluNurbsSurface
+ (nurb,
+ 8,
+ knots,
+ 8,
+ knots,
+ (4 * 3),
+ 3,
+ pts4,
+ 4,
+ 4,
+ GL_MAP2_VERTEX_3);
+ glu.gluEndSurface(nurb);
+
+ gl.glEndList();
+
+ glj.gljCheckGL();
+ }
+
+ public void cvsDispose()
+ {
+ System.out.println("destroy(): " + this);
+ super.cvsDispose();
+ }
+
+ public void reshape(int width, int height)
+ {
+ gl.glViewport(0,0,width,height);
+ gl.glMatrixMode(GL_PROJECTION);
+ }
+
+ public void display()
+ {
+ if (glj.gljMakeCurrent() == false) return;
+
+ gl.glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ gl.glCallList(1);
+ gl.glFlush();
+
+ glj.gljSwap();
+ glj.gljCheckGL();
+ glj.gljFree();
+ }
+ }
+}
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