Copied JOGL_2_SANDBOX r350 on to trunk; JOGL_2_SANDBOX branch is now closed

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@352 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4

1 files changed, 842 insertions, 0 deletions

diff --git a/src/demos/es1/angeles/AngelesGLil.java b/src/demos/es1/angeles/AngelesGLil.java
new file mode 100755
index 0000000..aaae01e
--- /dev/null
+++ b/src/demos/es1/angeles/AngelesGLil.java
@@ -0,0 +1,842 @@
+/* San Angeles Observation OpenGL ES version example
+ * Copyright 2004-2005 Jetro Lauha
+ * All rights reserved.
+ * Web: http://iki.fi/jetro/
+ *
+ * This source is free software; you can redistribute it and/or
+ * modify it under the terms of EITHER:
+ *   (1) The GNU Lesser General Public License as published by the Free
+ *       Software Foundation; either version 2.1 of the License, or (at
+ *       your option) any later version. The text of the GNU Lesser
+ *       General Public License is included with this source in the
+ *       file LICENSE-LGPL.txt.
+ *   (2) The BSD-style license that is included with this source in
+ *       the file LICENSE-BSD.txt.
+ *
+ * This source is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files
+ * LICENSE-LGPL.txt and LICENSE-BSD.txt for more details.
+ *
+ * $Id$
+ * $Revision$
+ */
+
+package demos.es1.angeles;
+
+import javax.media.opengl.*;
+import javax.media.opengl.glu.*;
+import com.sun.opengl.util.*;
+import com.sun.opengl.util.glsl.fixedfunc.*;
+import java.nio.*;
+
+public class AngelesGLil implements GLEventListener {
+
+    public AngelesGLil(boolean enableBlending) {
+        blendingEnabled = enableBlending;
+        quadVertices = BufferUtil.newFloatBuffer(12);
+        quadVertices.put(new float[]{
+            -1.0f, -1.0f,
+             1.0f, -1.0f,
+            -1.0f,  1.0f,
+             1.0f, -1.0f,
+             1.0f,  1.0f,
+            -1.0f,  1.0f
+        });
+        quadVertices.flip();
+
+        light0Position=BufferUtil.newFloatBuffer(4);
+        light0Diffuse=BufferUtil.newFloatBuffer(4);
+        light1Position=BufferUtil.newFloatBuffer(4);
+        light1Diffuse=BufferUtil.newFloatBuffer(4);
+        light2Position=BufferUtil.newFloatBuffer(4);
+        light2Diffuse=BufferUtil.newFloatBuffer(4);
+        materialSpecular=BufferUtil.newFloatBuffer(4);
+
+        light0Position.put(new float[] { FixedPoint.toFloat(-0x40000), 1.0f, 1.0f, 0.0f });
+        light0Diffuse.put(new float[] { 1.0f, FixedPoint.toFloat(0x6666), 0.0f, 1.0f });
+        light1Position.put(new float[] { 1.0f, FixedPoint.toFloat(-0x20000), -1.0f, 0.0f });
+        light1Diffuse.put(new float[] { FixedPoint.toFloat(0x11eb), FixedPoint.toFloat(0x23d7), FixedPoint.toFloat(0x5999), 1.0f });
+        light2Position.put(new float[] { -1.0f, 0.0f, FixedPoint.toFloat(-0x40000), 0.0f });
+        light2Diffuse.put(new float[] { FixedPoint.toFloat(0x11eb), FixedPoint.toFloat(0x2b85), FixedPoint.toFloat(0x23d7), 1.0f });
+        materialSpecular.put(new float[] { 1.0f, 1.0f, 1.0f, 1.0f });
+
+        light0Position.flip();
+        light0Diffuse.flip();
+        light1Position.flip();
+        light1Diffuse.flip();
+        light2Position.flip();
+        light2Diffuse.flip();
+        materialSpecular.flip();
+
+        seedRandom(15);
+
+        width=0;
+        height=0;
+        x=0;
+        y=0;
+    }
+
+    public void init(GLAutoDrawable drawable) {
+        // FIXME: gl.setSwapInterval(1);
+
+        cComps = drawable.getGL().isGLES1() ? 4: 3;
+
+        this.gl = FixedFuncUtil.getFixedFuncImpl(drawable.getGL());
+        System.err.println("AngelesGL: "+this.gl);
+
+        this.glu = GLU.createGLU();
+
+        gl.glEnable(GL2ES1.GL_NORMALIZE);
+        gl.glEnable(GL.GL_DEPTH_TEST);
+        gl.glDisable(GL.GL_CULL_FACE);
+        gl.glCullFace(GL.GL_BACK);
+        gl.glShadeModel(gl.GL_FLAT);
+
+        gl.glEnable(gl.GL_LIGHTING);
+        gl.glEnable(gl.GL_LIGHT0);
+        gl.glEnable(gl.GL_LIGHT1);
+        gl.glEnable(gl.GL_LIGHT2); 
+
+        gl.glEnableClientState(gl.GL_VERTEX_ARRAY);
+        gl.glEnableClientState(gl.GL_COLOR_ARRAY);
+
+        for (int a = 0; a < SuperShape.COUNT; ++a)
+        {
+            sSuperShapeObjects[a] = createSuperShape(SuperShape.sParams[a]);
+        }
+        sGroundPlane = createGroundPlane();
+
+        gAppAlive = 1;
+
+        sStartTick = System.currentTimeMillis();
+        frames=0;
+
+        /*
+        gl.glGetError(); // flush error ..
+        if(gl.isGLES2()) {
+            GLES2 gles2 = gl.getGLES2();
+
+            // Debug ..
+            //DebugGLES2 gldbg = new DebugGLES2(gles2);
+            //gles2.getContext().setGL(gldbg);
+            //gles2 = gldbg;
+
+            // Trace ..
+            TraceGLES2 gltrace = new TraceGLES2(gles2, System.err);
+            gles2.getContext().setGL(gltrace);
+            gles2 = gltrace;
+        } else if(gl.isGL2()) {
+            GL2 gl2 = gl.getGL2();
+
+            // Debug ..
+            //DebugGL2 gldbg = new DebugGL2(gl2);
+            //gl2.getContext().setGL(gldbg);
+            //gl2 = gldbg;
+
+            // Trace ..
+            TraceGL2 gltrace = new TraceGL2(gl2, System.err);
+            gl2.getContext().setGL(gltrace);
+            gl2 = gltrace;
+        } */
+    }
+
+    public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
+        this.width = width;
+        this.height=height;
+        this.x = x;
+        this.y = y;
+
+        this.gl = drawable.getGL().getGL2ES1();
+
+        gl.glMatrixMode(gl.GL_MODELVIEW);
+        gl.glLoadIdentity();
+
+        gl.glClearColor(0.1f, 0.2f, 0.3f, 1.0f);
+
+        // JAU gl.glHint(GL2ES1.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_FASTEST);
+
+        //gl.glShadeModel(gl.GL_SMOOTH);
+        gl.glShadeModel(gl.GL_FLAT);
+        gl.glDisable(GL.GL_DITHER);
+
+        //gl.glMatrixMode(gl.GL_PROJECTION);
+        //gl.glLoadIdentity();
+        //glu.gluPerspective(45.0f, (float)width / (float)height, 0.5f, 150.0f);
+
+        //System.out.println("reshape ..");
+    }
+
+    public void dispose(GLAutoDrawable drawable) {
+    }
+
+    public void display(GLAutoDrawable drawable) {
+        long tick = System.currentTimeMillis();
+
+        if (gAppAlive==0)
+            return;
+
+        this.gl = drawable.getGL().getGL2ES1();
+
+        // Actual tick value is "blurred" a little bit.
+        sTick = (sTick + tick - sStartTick) >> 1;
+
+        // Terminate application after running through the demonstration once.
+        if (sTick >= RUN_LENGTH)
+        {
+            gAppAlive = 0;
+            return;
+        }
+
+        gl.glClear(GL.GL_DEPTH_BUFFER_BIT | GL.GL_COLOR_BUFFER_BIT);
+
+        gl.glMatrixMode(gl.GL_PROJECTION);
+        gl.glLoadIdentity();
+        glu.gluPerspective(45.0f, (float)width / (float)height, 0.5f, 150.0f);
+
+        // Update the camera position and set the lookat.
+        camTrack();
+
+        // Configure environment.
+        configureLightAndMaterial();
+
+        if(blendingEnabled) {
+            gl.glEnable(GL.GL_CULL_FACE);
+            // Draw the reflection by drawing models with negated Z-axis.
+            gl.glPushMatrix();
+            drawModels(-1);
+            gl.glPopMatrix();
+        }
+
+        // Draw the ground plane to the window. (opt. blending)
+        drawGroundPlane(); 
+
+        if(blendingEnabled) {
+            gl.glDisable(GL.GL_CULL_FACE);
+        }
+
+        // Draw all the models normally.
+        drawModels(1);
+
+        if(blendingEnabled) {
+            // Draw fade quad over whole window (when changing cameras).
+            drawFadeQuad();
+        }
+
+        frames++;
+        tick = System.currentTimeMillis();
+    }
+
+    public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {
+    }
+
+ private boolean blendingEnabled = true;
+ private GL2ES1 gl; // temp cache
+ private GLU glu;
+
+ // Total run length is 20 * camera track base unit length (see cams.h).
+ private int RUN_LENGTH  = (20 * CamTrack.CAMTRACK_LEN) ;
+ private int RANDOM_UINT_MAX = 65535 ;
+
+ private long sRandomSeed = 0;
+
+void seedRandom(long seed)
+{
+    sRandomSeed = seed;
+}
+
+int randomUInt()
+{
+    sRandomSeed = sRandomSeed * 0x343fd + 0x269ec3;
+    return Math.abs((int) (sRandomSeed >> 16));
+}
+
+private int cComps;
+
+// Definition of one GL object in this demo.
+public class GLSpatial {
+    /* Vertex array and color array are enabled for all objects, so their
+     * pointers must always be valid and non-null. Normal array is not
+     * used by the ground plane, so when its pointer is null then normal
+     * array usage is disabled.
+     *
+     * Vertex array is supposed to use GL.GL_FLOAT datatype and stride 0
+     * (i.e. tightly packed array). Color array is supposed to have 4
+     * components per color with GL.GL_UNSIGNED_BYTE datatype and stride 0.
+     * Normal array is supposed to use GL.GL_FLOAT datatype and stride 0.
+     */
+    protected int vboName, count;
+    protected int vComps, nComps;
+    protected ByteBuffer  pBuffer;
+    protected FloatBuffer interlArray;
+    protected GLArrayDataWrapper vArrayData, cArrayData, nArrayData=null;
+
+    public GLSpatial(int vertices, int vertexComponents,
+                    boolean useNormalArray) {
+        count = vertices;
+        vComps= vertexComponents;
+        nComps = useNormalArray ? 3 : 0;
+
+        int bStride = BufferUtil.sizeOfGLType(GL.GL_FLOAT) * ( vComps + cComps + nComps );
+        int bSize = count * bStride;
+
+        pBuffer = BufferUtil.newByteBuffer(bSize);
+        interlArray = pBuffer.asFloatBuffer();
+
+        int vOffset = 0;
+        int cOffset = BufferUtil.sizeOfGLType(GL.GL_FLOAT) * (vComps);
+        int nOffset = BufferUtil.sizeOfGLType(GL.GL_FLOAT) * (vComps + cComps);
+
+        int[] tmp = new int[1];
+        gl.glGenBuffers(1, tmp, 0);
+        vboName = tmp[0];
+
+        pBuffer.position(bSize);
+        pBuffer.flip();
+
+        // just for documentation reasons ..
+        interlArray.position(count*(vComps+cComps+nComps));
+        interlArray.flip();
+
+        vArrayData = GLArrayDataWrapper.createFixed(gl, gl.GL_VERTEX_ARRAY, vComps, GL.GL_FLOAT, false,
+                                                    bStride, pBuffer, vboName, vOffset);
+        cArrayData = GLArrayDataWrapper.createFixed(gl, gl.GL_COLOR_ARRAY, cComps, GL.GL_FLOAT, false,
+                                                    bStride, pBuffer, vboName, cOffset);
+        if(useNormalArray) {
+            nArrayData = GLArrayDataWrapper.createFixed(gl, gl.GL_NORMAL_ARRAY, nComps, GL.GL_FLOAT, false,
+                                                        bStride, pBuffer, vboName, nOffset);
+        }
+    }
+
+    private boolean sealed = false;
+
+    void seal()
+    {
+        if(sealed) return;
+        sealed = true;
+
+        if(nComps>0) {
+            gl.glEnableClientState(gl.GL_NORMAL_ARRAY);
+        }
+
+        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vboName);
+        gl.glBufferData(GL.GL_ARRAY_BUFFER, pBuffer.limit(), pBuffer, GL.GL_STATIC_DRAW);
+        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, 0);
+
+        if(nComps>0) {
+            gl.glDisableClientState(gl.GL_NORMAL_ARRAY);
+        }
+    }
+
+    void draw()
+    {
+        seal();
+        if(nComps>0) {
+           gl.glEnableClientState(gl.GL_NORMAL_ARRAY);
+        }
+
+        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vboName);
+
+        gl.glVertexPointer(vArrayData);
+        gl.glColorPointer(cArrayData);
+        if(nComps>0) {
+            gl.glNormalPointer(nArrayData);
+        }
+
+
+        gl.glDrawArrays(GL.GL_TRIANGLES, 0, count);
+
+        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, 0);
+
+        if(nComps>0) {
+            gl.glDisableClientState(gl.GL_NORMAL_ARRAY);
+        }
+    }
+}
+
+long sStartTick = 0;
+long sTick = 0;
+
+int sCurrentCamTrack = 0;
+long sCurrentCamTrackStartTick = 0;
+long sNextCamTrackStartTick = 0x7fffffff;
+
+GLSpatial sSuperShapeObjects[] = new GLSpatial[SuperShape.COUNT];
+GLSpatial sGroundPlane;
+
+
+public class VECTOR3 {
+    float x, y, z;
+
+    public VECTOR3() {
+        x=0f; y=0f; z=0f;
+    }
+    public VECTOR3(float x, float y, float z) {
+        this.x=x;
+        this.y=y;
+        this.z=z;
+    }
+}
+
+
+
+static void vector3Sub(VECTOR3 dest, VECTOR3 v1, VECTOR3 v2)
+{
+    dest.x = v1.x - v2.x;
+    dest.y = v1.y - v2.y;
+    dest.z = v1.z - v2.z;
+}
+
+
+static void superShapeMap(VECTOR3 point, float r1, float r2, float t, float p)
+{
+    // sphere-mapping of supershape parameters
+    point.x = (float)(Math.cos(t) * Math.cos(p) / r1 / r2);
+    point.y = (float)(Math.sin(t) * Math.cos(p) / r1 / r2);
+    point.z = (float)(Math.sin(p) / r2);
+}
+
+
+float ssFunc(final float t, final float p[])
+{
+    return ssFunc(t, p, 0);
+}
+
+float ssFunc(final float t, final float p[], int pOff)
+{
+    return (float)(Math.pow(Math.pow(Math.abs(Math.cos(p[0+pOff] * t / 4)) / p[1+pOff], p[4+pOff]) +
+                            Math.pow(Math.abs(Math.sin(p[0+pOff] * t / 4)) / p[2+pOff], p[5+pOff]), 1 / p[3+pOff]));
+}
+
+
+// Creates and returns a supershape object.
+// Based on Paul Bourke's POV-Ray implementation.
+// http://astronomy.swin.edu.au/~pbourke/povray/supershape/
+GLSpatial createSuperShape(final float params[])
+{
+    final int resol1 = (int)params[SuperShape.PARAMS - 3];
+    final int resol2 = (int)params[SuperShape.PARAMS - 2];
+    // latitude 0 to pi/2 for no mirrored bottom
+    // (latitudeBegin==0 for -pi/2 to pi/2 originally)
+    final int latitudeBegin = resol2 / 4;
+    final int latitudeEnd = resol2 / 2;    // non-inclusive
+    final int longitudeCount = resol1;
+    final int latitudeCount = latitudeEnd - latitudeBegin;
+    final int triangleCount = longitudeCount * latitudeCount * 2;
+    final int vertices = triangleCount * 3;
+    GLSpatial result;
+    float baseColor[] = new float[3];
+    float color[] = new float[3];
+    int a, longitude, latitude;
+    int currentIndex, currentQuad;
+
+    result = new GLSpatial(vertices, 3, true);
+    if (result == null)
+        return null;
+
+    for (a = 0; a < 3; ++a)
+        baseColor[a] = ((randomUInt() % 155) + 100) / 255.f;
+
+    currentQuad = 0;
+    currentIndex = 0;
+
+    // longitude -pi to pi
+    for (longitude = 0; longitude < longitudeCount; ++longitude)
+    {
+
+        // latitude 0 to pi/2
+        for (latitude = latitudeBegin; latitude < latitudeEnd; ++latitude)
+        {
+            float t1 = (float) ( -Math.PI + longitude * 2 * Math.PI / resol1 );
+            float t2 = (float) ( -Math.PI + (longitude + 1) * 2 * Math.PI / resol1 );
+            float p1 = (float) ( -Math.PI / 2 + latitude * 2 * Math.PI / resol2 );
+            float p2 = (float) ( -Math.PI / 2 + (latitude + 1) * 2 * Math.PI / resol2 );
+            float r0, r1, r2, r3;
+
+            r0 = ssFunc(t1, params);
+            r1 = ssFunc(p1, params, 6);
+            r2 = ssFunc(t2, params);
+            r3 = ssFunc(p2, params, 6);
+
+            if (r0 != 0 && r1 != 0 && r2 != 0 && r3 != 0)
+            {
+                VECTOR3 pa=new VECTOR3(), pb=new VECTOR3(), pc=new VECTOR3(), pd=new VECTOR3();
+                VECTOR3 v1=new VECTOR3(), v2=new VECTOR3(), n=new VECTOR3();
+                float ca;
+                int i;
+                //float lenSq, invLenSq;
+
+                superShapeMap(pa, r0, r1, t1, p1);
+                superShapeMap(pb, r2, r1, t2, p1);
+                superShapeMap(pc, r2, r3, t2, p2);
+                superShapeMap(pd, r0, r3, t1, p2);
+
+                // kludge to set lower edge of the object to fixed level
+                if (latitude == latitudeBegin + 1)
+                    pa.z = pb.z = 0;
+
+                vector3Sub(v1, pb, pa);
+                vector3Sub(v2, pd, pa);
+
+                // Calculate normal with cross product.
+                /*   i    j    k      i    j
+                 * v1.x v1.y v1.z | v1.x v1.y
+                 * v2.x v2.y v2.z | v2.x v2.y
+                 */
+
+                n.x = v1.y * v2.z - v1.z * v2.y;
+                n.y = v1.z * v2.x - v1.x * v2.z;
+                n.z = v1.x * v2.y - v1.y * v2.x;
+
+                /* Pre-normalization of the normals is disabled here because
+                 * they will be normalized anyway later due to automatic
+                 * normalization (GL2ES1.GL_NORMALIZE). It is enabled because the
+                 * objects are scaled with glScale.
+                 */
+                /*
+                lenSq = n.x * n.x + n.y * n.y + n.z * n.z;
+                invLenSq = (float)(1 / sqrt(lenSq));
+                n.x *= invLenSq;
+                n.y *= invLenSq;
+                n.z *= invLenSq;
+                */
+
+                ca = pa.z + 0.5f;
+
+                for (int j = 0; j < 3; ++j)
+                {
+                    color[j] = ca * baseColor[j];
+                    if (color[j] > 1.0f) color[j] = 1.0f;
+                }
+
+                result.interlArray.put(currentIndex++, (pa.x));
+                result.interlArray.put(currentIndex++, (pa.y));
+                result.interlArray.put(currentIndex++, (pa.z));
+                result.interlArray.put(currentIndex++, color[0]);
+                result.interlArray.put(currentIndex++, color[1]);
+                result.interlArray.put(currentIndex++, color[2]);
+                if(3<cComps) {
+                    result.interlArray.put(currentIndex++, 0f);
+                }
+                if(result.nComps>0) {
+                    result.interlArray.put(currentIndex++, (n.x));
+                    result.interlArray.put(currentIndex++, (n.y));
+                    result.interlArray.put(currentIndex++, (n.z));
+                }
+
+                result.interlArray.put(currentIndex++, (pb.x));
+                result.interlArray.put(currentIndex++, (pb.y));
+                result.interlArray.put(currentIndex++, (pb.z));
+                result.interlArray.put(currentIndex++, color[0]);
+                result.interlArray.put(currentIndex++, color[1]);
+                result.interlArray.put(currentIndex++, color[2]);
+                if(3<cComps) {
+                    result.interlArray.put(currentIndex++, 0f);
+                }
+                if(result.nComps>0) {
+                    result.interlArray.put(currentIndex++, (n.x));
+                    result.interlArray.put(currentIndex++, (n.y));
+                    result.interlArray.put(currentIndex++, (n.z));
+                }
+
+                result.interlArray.put(currentIndex++, (pd.x));
+                result.interlArray.put(currentIndex++, (pd.y));
+                result.interlArray.put(currentIndex++, (pd.z));
+                result.interlArray.put(currentIndex++, color[0]);
+                result.interlArray.put(currentIndex++, color[1]);
+                result.interlArray.put(currentIndex++, color[2]);
+                if(3<cComps) {
+                    result.interlArray.put(currentIndex++, 0f);
+                }
+                if(result.nComps>0) {
+                    result.interlArray.put(currentIndex++, (n.x));
+                    result.interlArray.put(currentIndex++, (n.y));
+                    result.interlArray.put(currentIndex++, (n.z));
+                }
+                
+                result.interlArray.put(currentIndex++, (pb.x));
+                result.interlArray.put(currentIndex++, (pb.y));
+                result.interlArray.put(currentIndex++, (pb.z));
+                result.interlArray.put(currentIndex++, color[0]);
+                result.interlArray.put(currentIndex++, color[1]);
+                result.interlArray.put(currentIndex++, color[2]);
+                if(3<cComps) {
+                    result.interlArray.put(currentIndex++, 0f);
+                }
+                if(result.nComps>0) {
+                    result.interlArray.put(currentIndex++, (n.x));
+                    result.interlArray.put(currentIndex++, (n.y));
+                    result.interlArray.put(currentIndex++, (n.z));
+                }
+
+                result.interlArray.put(currentIndex++, (pc.x));
+                result.interlArray.put(currentIndex++, (pc.y));
+                result.interlArray.put(currentIndex++, (pc.z));
+                result.interlArray.put(currentIndex++, color[0]);
+                result.interlArray.put(currentIndex++, color[1]);
+                result.interlArray.put(currentIndex++, color[2]);
+                if(3<cComps) {
+                    result.interlArray.put(currentIndex++, 0f);
+                }
+                if(result.nComps>0) {
+                    result.interlArray.put(currentIndex++, (n.x));
+                    result.interlArray.put(currentIndex++, (n.y));
+                    result.interlArray.put(currentIndex++, (n.z));
+                }
+
+                result.interlArray.put(currentIndex++, (pd.x));
+                result.interlArray.put(currentIndex++, (pd.y));
+                result.interlArray.put(currentIndex++, (pd.z));
+                result.interlArray.put(currentIndex++, color[0]);
+                result.interlArray.put(currentIndex++, color[1]);
+                result.interlArray.put(currentIndex++, color[2]);
+                if(3<cComps) {
+                    result.interlArray.put(currentIndex++, 0f);
+                }
+                if(result.nComps>0) {
+                    result.interlArray.put(currentIndex++, (n.x));
+                    result.interlArray.put(currentIndex++, (n.y));
+                    result.interlArray.put(currentIndex++, (n.z));
+                }
+
+            } // r0 && r1 && r2 && r3
+            ++currentQuad;
+        } // latitude
+    } // longitude
+
+    result.seal();
+    return result;
+}
+
+
+GLSpatial createGroundPlane()
+{
+    final  int scale = 4;
+    final  int yBegin = -15, yEnd = 15;    // ends are non-inclusive
+    final  int xBegin = -15, xEnd = 15;
+    final  int triangleCount = (yEnd - yBegin) * (xEnd - xBegin) * 2;
+    final  int vertices = triangleCount * 3;
+    GLSpatial result;
+    int x, y;
+    int currentIndex, currentQuad;
+    final int vcomps = 2;
+
+    result = new GLSpatial(vertices, vcomps, false);
+    if (result == null)
+        return null;
+
+    currentQuad = 0;
+    currentIndex = 0;
+
+    for (y = yBegin; y < yEnd; ++y)
+    {
+        for (x = xBegin; x < xEnd; ++x)
+        {
+            float color;
+            int i, a;
+            color = ((float)(randomUInt() % 255))/255.0f;
+
+            // Axis bits for quad triangles:
+            // x: 011100 (0x1c), y: 110001 (0x31)  (clockwise)
+            // x: 001110 (0x0e), y: 100011 (0x23)  (counter-clockwise)
+            for (a = 0; a < 6; ++a)
+            {
+                final int xm = x + ((0x1c >> a) & 1);
+                final int ym = y + ((0x31 >> a) & 1);
+                final float m = (float)(Math.cos(xm * 2) * Math.sin(ym * 4) * 0.75f);
+                result.interlArray.put(currentIndex++, (xm * scale + m));
+                result.interlArray.put(currentIndex++, (ym * scale + m));
+                if(2<vcomps) {
+                    result.interlArray.put(currentIndex++, 0f);
+                }
+                result.interlArray.put(currentIndex++, color);
+                result.interlArray.put(currentIndex++, color);
+                result.interlArray.put(currentIndex++, color);
+                if(3<cComps) {
+                    result.interlArray.put(currentIndex++, 0);
+                }
+            }
+            ++currentQuad;
+        }
+    }
+    result.seal();
+    return result;
+}
+
+
+void drawGroundPlane()
+{
+    gl.glDisable(gl.GL_LIGHTING);
+    gl.glDisable(GL.GL_DEPTH_TEST);
+    if(blendingEnabled) {
+        gl.glEnable(GL.GL_BLEND);
+        gl.glBlendFunc(GL.GL_ZERO, GL.GL_SRC_COLOR);
+    }
+
+    sGroundPlane.draw();
+
+    if(blendingEnabled) {
+        gl.glDisable(GL.GL_BLEND);
+    }
+    gl.glEnable(GL.GL_DEPTH_TEST);
+    gl.glEnable(gl.GL_LIGHTING);
+}
+
+void drawFadeQuad()
+{
+    final int beginFade = (int) (sTick - sCurrentCamTrackStartTick);
+    final int endFade = (int) (sNextCamTrackStartTick - sTick);
+    final int minFade = beginFade < endFade ? beginFade : endFade;
+
+    if (minFade < 1024)
+    {
+        final float fadeColor = FixedPoint.toFloat(minFade << 7);
+        gl.glColor4f(fadeColor, fadeColor, fadeColor, 0f);
+
+        gl.glDisable(GL.GL_DEPTH_TEST);
+        gl.glEnable(GL.GL_BLEND);
+        gl.glBlendFunc(GL.GL_ZERO, GL.GL_SRC_COLOR);
+        gl.glDisable(gl.GL_LIGHTING);
+
+        gl.glMatrixMode(gl.GL_MODELVIEW);
+        gl.glLoadIdentity();
+
+        gl.glMatrixMode(gl.GL_PROJECTION);
+        gl.glLoadIdentity();
+
+        gl.glBindBuffer(GL.GL_ARRAY_BUFFER, 0);
+        gl.glDisableClientState(gl.GL_COLOR_ARRAY);
+        gl.glDisableClientState(gl.GL_NORMAL_ARRAY);
+        gl.glEnableClientState(gl.GL_VERTEX_ARRAY);
+        gl.glVertexPointer(2, GL.GL_FLOAT, 0, quadVertices);
+        gl.glDrawArrays(GL.GL_TRIANGLES, 0, 6);
+        gl.glEnableClientState(gl.GL_COLOR_ARRAY);
+
+        gl.glMatrixMode(gl.GL_MODELVIEW);
+
+        gl.glEnable(gl.GL_LIGHTING);
+        gl.glDisable(GL.GL_BLEND);
+        gl.glEnable(GL.GL_DEPTH_TEST);
+    }
+}
+
+FloatBuffer quadVertices;
+FloatBuffer light0Position;
+FloatBuffer light0Diffuse;
+FloatBuffer light1Position;
+FloatBuffer light1Diffuse;
+FloatBuffer light2Position;
+FloatBuffer light2Diffuse;
+FloatBuffer materialSpecular;
+
+void configureLightAndMaterial()
+{
+    gl.glLightfv(gl.GL_LIGHT0, gl.GL_POSITION, light0Position);
+    gl.glLightfv(gl.GL_LIGHT0, gl.GL_DIFFUSE, light0Diffuse);
+    gl.glLightfv(gl.GL_LIGHT1, gl.GL_POSITION, light1Position);
+    gl.glLightfv(gl.GL_LIGHT1, gl.GL_DIFFUSE, light1Diffuse);
+    gl.glLightfv(gl.GL_LIGHT2, gl.GL_POSITION, light2Position);
+    gl.glLightfv(gl.GL_LIGHT2, gl.GL_DIFFUSE, light2Diffuse);
+    gl.glMaterialfv(GL.GL_FRONT_AND_BACK, gl.GL_SPECULAR, materialSpecular);
+
+    gl.glMaterialf(GL.GL_FRONT_AND_BACK, gl.GL_SHININESS, 60.0f);
+    gl.glEnable(gl.GL_COLOR_MATERIAL);
+}
+
+
+void drawModels(float zScale)
+{
+    final int translationScale = 9;
+    int x, y;
+
+    seedRandom(9);
+
+    gl.glScalef(1.0f, 1.0f, zScale);
+
+    for (y = -5; y <= 5; ++y)
+    {
+        for (x = -5; x <= 5; ++x)
+        {
+            int curShape = randomUInt() % SuperShape.COUNT;
+            float buildingScale = SuperShape.sParams[curShape][SuperShape.PARAMS - 1];
+
+            gl.glPushMatrix();
+            gl.glTranslatef((float)(x * translationScale),
+                            (float)(y * translationScale),
+                            0f);
+            gl.glRotatef((float)(randomUInt() % 360), 0f, 0f, 1f);
+            gl.glScalef(buildingScale, buildingScale, buildingScale);
+
+            sSuperShapeObjects[curShape].draw();
+            gl.glPopMatrix();
+        }
+    }
+
+    for (x = -2; x <= 2; ++x)
+    {
+        final int shipScale100 = translationScale * 500;
+        final int offs100 = x * shipScale100 + (int)(sTick % shipScale100);
+        float offs = offs100 * 0.01f;
+        gl.glPushMatrix();
+        gl.glTranslatef(offs, -4.0f, 2.0f);
+        sSuperShapeObjects[SuperShape.COUNT - 1].draw();
+        gl.glPopMatrix();
+        gl.glPushMatrix();
+        gl.glTranslatef(-4.0f, offs, 4.0f);
+        gl.glRotatef(90.0f, 0.0f, 0.0f, 1.0f);
+        sSuperShapeObjects[SuperShape.COUNT - 1].draw();
+        gl.glPopMatrix();
+    }
+}
+
+
+void camTrack()
+{
+    float lerp[]= new float[5];
+    float eX, eY, eZ, cX, cY, cZ;
+    float trackPos;
+    CamTrack cam;
+    long currentCamTick;
+    int a;
+
+    if (sNextCamTrackStartTick <= sTick)
+    {
+        ++sCurrentCamTrack;
+        sCurrentCamTrackStartTick = sNextCamTrackStartTick;
+    }
+    sNextCamTrackStartTick = sCurrentCamTrackStartTick +
+                             CamTrack.sCamTracks[sCurrentCamTrack].len * CamTrack.CAMTRACK_LEN;
+
+    cam = CamTrack.sCamTracks[sCurrentCamTrack];
+    currentCamTick = sTick - sCurrentCamTrackStartTick;
+    trackPos = (float)currentCamTick / (CamTrack.CAMTRACK_LEN * cam.len);
+
+    for (a = 0; a < 5; ++a)
+        lerp[a] = (cam.src[a] + cam.dest[a] * trackPos) * 0.01f;
+
+    if (cam.dist>0)
+    {
+        float dist = cam.dist * 0.1f;
+        cX = lerp[0];
+        cY = lerp[1];
+        cZ = lerp[2];
+        eX = cX - (float)Math.cos(lerp[3]) * dist;
+        eY = cY - (float)Math.sin(lerp[3]) * dist;
+        eZ = cZ - lerp[4];
+    }
+    else
+    {
+        eX = lerp[0];
+        eY = lerp[1];
+        eZ = lerp[2];
+        cX = eX + (float)Math.cos(lerp[3]);
+        cY = eY + (float)Math.sin(lerp[3]);
+        cZ = eZ + lerp[4];
+    }
+    glu.gluLookAt(eX, eY, eZ, cX, cY, cZ, 0, 0, 1);
+}
+
+private int gAppAlive = 0;
+private int width, height, x, y, frames;
+}
+