Added new OpenGL examples for Android

2026-06-16 04:26:26 +02:00 · 2012-02-12 21:33:18 +00:00
parent ff0b8e7877
commit 2f723a0403
140 changed files with 5882 additions and 0 deletions
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,256 @@
+class Gesture {
+
+  float  damp = 5.0;
+  float  dampInv = 1.0 / damp;
+  float  damp1 = damp - 1;
+
+  int w;
+  int h;
+  int capacity;
+
+  Vec3f path[];
+  int crosses[];
+  Polygon polygons[];
+  int nPoints;
+  int nPolys;
+
+  float jumpDx, jumpDy;
+  boolean exists;
+  float INIT_TH = 14;
+  float thickness = INIT_TH;
+
+  Gesture(int mw, int mh) {
+    w = mw;
+    h = mh;
+    capacity = 600;
+    path = new Vec3f[capacity];
+    polygons = new Polygon[capacity];
+    crosses  = new int[capacity];
+    for (int i=0;i<capacity;i++) {
+      polygons[i] = new Polygon(4);
+      polygons[i].npoints = 4;
+      path[i] = new Vec3f();
+      crosses[i] = 0;
+    }
+    nPoints = 0;
+    nPolys = 0;
+
+    exists = false;
+    jumpDx = 0;
+    jumpDy = 0;
+  }
+
+  void clear() {
+    nPoints = 0;
+    exists = false;
+    thickness = INIT_TH;
+  }
+
+  void clearPolys() {
+    nPolys = 0;
+  }
+
+  void addPoint(float x, float y) {
+
+    if (nPoints >= capacity) {
+      // there are all sorts of possible solutions here,
+      // but for abject simplicity, I don't do anything.
+    } 
+    else {
+      float v = distToLast(x, y);
+      float p = getPressureFromVelocity(v);
+      path[nPoints++].set(x,y,p);
+
+      if (nPoints > 1) {
+        exists = true;
+        jumpDx = path[nPoints-1].x - path[0].x;
+        jumpDy = path[nPoints-1].y - path[0].y;
+      }
+    }
+
+  }
+
+  float getPressureFromVelocity(float v) {
+    final float scale = 18;
+    final float minP = 0.02;
+    final float oldP = (nPoints > 0) ? path[nPoints-1].p : 0;
+    return ((minP + max(0, 1.0 - v/scale)) + (damp1*oldP))*dampInv;
+  }
+
+  void setPressures() {
+    // pressures vary from 0...1
+    float pressure;
+    Vec3f tmp;
+    float t = 0;
+    float u = 1.0 / (nPoints - 1)*TWO_PI;
+    for (int i = 0; i < nPoints; i++) {
+      pressure = sqrt((1.0 - cos(t))*0.5);
+      path[i].p = pressure;
+      t += u;
+    }
+  }
+
+  float distToLast(float ix, float iy) {
+    if (nPoints > 0) {
+      Vec3f v = path[nPoints-1];
+      float dx = v.x - ix;
+      float dy = v.y - iy;
+      return mag(dx, dy);
+    } 
+    else {
+      return 30;
+    }
+  }
+
+  void compile() {
+    // compute the polygons from the path of Vec3f's
+    if (exists) {
+      clearPolys();
+
+      Vec3f p0, p1, p2;
+      float radius0, radius1;
+      float ax, bx, cx, dx;
+      float ay, by, cy, dy;
+      int   axi, bxi, cxi, dxi, axip, axid;
+      int   ayi, byi, cyi, dyi, ayip, ayid;
+      float p1x, p1y;
+      float dx01, dy01, hp01, si01, co01;
+      float dx02, dy02, hp02, si02, co02;
+      float dx13, dy13, hp13, si13, co13;
+      float taper = 1.0;
+
+      int  nPathPoints = nPoints - 1;
+      int  lastPolyIndex = nPathPoints - 1;
+      float npm1finv =  1.0 / max(1, nPathPoints - 1);
+
+      // handle the first point
+      p0 = path[0];
+      p1 = path[1];
+      radius0 = p0.p * thickness;
+      dx01 = p1.x - p0.x;
+      dy01 = p1.y - p0.y;
+      hp01 = sqrt(dx01*dx01 + dy01*dy01);
+      if (hp01 == 0) {
+        hp02 = 0.0001;
+      }
+      co01 = radius0 * dx01 / hp01;
+      si01 = radius0 * dy01 / hp01;
+      ax = p0.x - si01; 
+      ay = p0.y + co01;
+      bx = p0.x + si01; 
+      by = p0.y - co01;
+
+      int xpts[];
+      int ypts[];
+
+      int LC = 20;
+      int RC = w-LC;
+      int TC = 20;
+      int BC = h-TC;
+      float mint = 0.618;
+      float tapow = 0.4;
+
+      // handle the middle points
+      int i = 1;
+      Polygon apoly;
+      for (i = 1; i < nPathPoints; i++) {
+        taper = pow((lastPolyIndex-i)*npm1finv,tapow);
+
+        p0 = path[i-1];
+        p1 = path[i  ];
+        p2 = path[i+1];
+        p1x = p1.x;
+        p1y = p1.y;
+        radius1 = Math.max(mint,taper*p1.p*thickness);
+
+        // assumes all segments are roughly the same length...
+        dx02 = p2.x - p0.x;
+        dy02 = p2.y - p0.y;
+        hp02 = (float) Math.sqrt(dx02*dx02 + dy02*dy02);
+        if (hp02 != 0) {
+          hp02 = radius1/hp02;
+        }
+        co02 = dx02 * hp02;
+        si02 = dy02 * hp02;
+
+        // translate the integer coordinates to the viewing rectangle
+        axi = axip = (int)ax;
+        ayi = ayip = (int)ay;
+        axi=(axi<0)?(w-((-axi)%w)):axi%w;
+        axid = axi-axip;
+        ayi=(ayi<0)?(h-((-ayi)%h)):ayi%h;
+        ayid = ayi-ayip;
+
+        // set the vertices of the polygon
+        apoly = polygons[nPolys++];
+        xpts = apoly.xpoints;
+        ypts = apoly.ypoints;
+        xpts[0] = axi = axid + axip;
+        xpts[1] = bxi = axid + (int) bx;
+        xpts[2] = cxi = axid + (int)(cx = p1x + si02);
+        xpts[3] = dxi = axid + (int)(dx = p1x - si02);
+        ypts[0] = ayi = ayid + ayip;
+        ypts[1] = byi = ayid + (int) by;
+        ypts[2] = cyi = ayid + (int)(cy = p1y - co02);
+        ypts[3] = dyi = ayid + (int)(dy = p1y + co02);
+
+        // keep a record of where we cross the edge of the screen
+        crosses[i] = 0;
+        if ((axi<=LC)||(bxi<=LC)||(cxi<=LC)||(dxi<=LC)) { 
+          crosses[i]|=1; 
+        }
+        if ((axi>=RC)||(bxi>=RC)||(cxi>=RC)||(dxi>=RC)) { 
+          crosses[i]|=2; 
+        }
+        if ((ayi<=TC)||(byi<=TC)||(cyi<=TC)||(dyi<=TC)) { 
+          crosses[i]|=4; 
+        }
+        if ((ayi>=BC)||(byi>=BC)||(cyi>=BC)||(dyi>=BC)) { 
+          crosses[i]|=8; 
+        }
+
+        //swap data for next time
+        ax = dx; 
+        ay = dy;
+        bx = cx; 
+        by = cy;
+      }
+
+      // handle the last point
+      p2 = path[nPathPoints];
+      apoly = polygons[nPolys++];
+      xpts = apoly.xpoints;
+      ypts = apoly.ypoints;
+
+      xpts[0] = (int)ax;
+      xpts[1] = (int)bx;
+      xpts[2] = (int)(p2.x);
+      xpts[3] = (int)(p2.x);
+
+      ypts[0] = (int)ay;
+      ypts[1] = (int)by;
+      ypts[2] = (int)(p2.y);
+      ypts[3] = (int)(p2.y);
+
+    }
+  }
+
+  void smooth() {
+    // average neighboring points
+
+    final float weight = 18;
+    final float scale  = 1.0 / (weight + 2);
+    int nPointsMinusTwo = nPoints - 2;
+    Vec3f lower, upper, center;
+
+    for (int i = 1; i < nPointsMinusTwo; i++) {
+      lower = path[i-1];
+      center = path[i];
+      upper = path[i+1];
+
+      center.x = (lower.x + weight*center.x + upper.x)*scale;
+      center.y = (lower.y + weight*center.y + upper.y)*scale;
+    }
+  }
+}
+
@@ -0,0 +1,12 @@
+public class Polygon {
+  int npoints;
+  int[] xpoints;
+  int[] ypoints;
+  
+  public Polygon(int n) {
+    npoints = n;
+    xpoints = new int[n];
+    ypoints = new int[n];
+  }  
+}
+
@@ -0,0 +1,19 @@
+class Vec3f {
+  float x;
+  float y;
+  float p;  // Pressure
+
+  Vec3f() {
+    set(0, 0, 0);
+  }
+  
+  Vec3f(float ix, float iy, float ip) {
+    set(ix, iy, ip);
+  }
+
+  void set(float ix, float iy, float ip) {
+    x = ix;
+    y = iy;
+    p = ip;
+  }
+}
@@ -0,0 +1,186 @@
+// Yellowtail
+// by Golan Levin (www.flong.com). 
+
+// Click, drag, and release to create a kinetic gesture.
+// 
+// Yellowtail (1998-2000) is an interactive software system for the gestural 
+// creation and performance of real-time abstract animation. Yellowtail repeats 
+// a user's strokes end-over-end, enabling simultaneous specification of a 
+// line's shape and quality of movement. Each line repeats according to its 
+// own period, producing an ever-changing and responsive display of lively, 
+// worm-like textures.
+
+Gesture gestureArray[];
+final int nGestures = 36;  // Number of gestures
+final int minMove = 3;     // Minimum travel for a new point
+int currentGestureID;
+
+Polygon tempP;
+int tmpXp[];
+int tmpYp[];
+
+void setup() {
+  size(screenWidth, screenHeight, P3D);
+  orientation(PORTRAIT);
+  
+  background(0, 0, 0);
+  noStroke();
+
+  currentGestureID = -1;
+  gestureArray = new Gesture[nGestures];
+  for (int i = 0; i < nGestures; i++) {
+    gestureArray[i] = new Gesture(width, height);
+  }
+  clearGestures();
+}
+
+
+void draw() {
+  background(0);
+
+  updateGeometry();
+  fill(255, 255, 245);
+  for (int i = 0; i < nGestures; i++) {
+    renderGesture(gestureArray[i], width, height);
+  }
+}
+
+void mousePressed() {
+  currentGestureID = (currentGestureID+1) % nGestures;
+  Gesture G = gestureArray[currentGestureID];
+  G.clear();
+  G.clearPolys();
+  G.addPoint(mouseX, mouseY);
+}
+
+
+void mouseDragged() {
+  if (currentGestureID >= 0) {
+    Gesture G = gestureArray[currentGestureID];
+    if (G.distToLast(mouseX, mouseY) > minMove) {
+      G.addPoint(mouseX, mouseY);
+      G.smooth();
+      G.compile();
+    }
+  }
+}
+
+
+void keyPressed() {
+  if (key == '+' || key == '=') {
+    if (currentGestureID >= 0) {
+      float th = gestureArray[currentGestureID].thickness;
+      gestureArray[currentGestureID].thickness = min(96, th+1);
+      gestureArray[currentGestureID].compile();
+    }
+  } else if (key == '-') {
+    if (currentGestureID >= 0) {
+      float th = gestureArray[currentGestureID].thickness;
+      gestureArray[currentGestureID].thickness = max(2, th-1);
+      gestureArray[currentGestureID].compile();
+    }
+  } else if (key == ' ') {
+    clearGestures();
+  }
+}
+
+
+void renderGesture(Gesture gesture, int w, int h) {
+  if (gesture.exists) {
+    if (gesture.nPolys > 0) {
+      Polygon polygons[] = gesture.polygons;
+      int crosses[] = gesture.crosses;
+
+      int xpts[];
+      int ypts[];
+      Polygon p;
+      int cr;
+
+      beginShape(QUADS);
+      int gnp = gesture.nPolys;
+      for (int i=0; i<gnp; i++) {
+
+        p = polygons[i];
+        xpts = p.xpoints;
+        ypts = p.ypoints;
+
+        vertex(xpts[0], ypts[0]);
+        vertex(xpts[1], ypts[1]);
+        vertex(xpts[2], ypts[2]);
+        vertex(xpts[3], ypts[3]);
+
+        if ((cr = crosses[i]) > 0) {
+          if ((cr & 3)>0) {
+            vertex(xpts[0]+w, ypts[0]);
+            vertex(xpts[1]+w, ypts[1]);
+            vertex(xpts[2]+w, ypts[2]);
+            vertex(xpts[3]+w, ypts[3]);
+
+            vertex(xpts[0]-w, ypts[0]);
+            vertex(xpts[1]-w, ypts[1]);
+            vertex(xpts[2]-w, ypts[2]);
+            vertex(xpts[3]-w, ypts[3]);
+          }
+          if ((cr & 12)>0) {
+            vertex(xpts[0], ypts[0]+h);
+            vertex(xpts[1], ypts[1]+h);
+            vertex(xpts[2], ypts[2]+h);
+            vertex(xpts[3], ypts[3]+h);
+
+            vertex(xpts[0], ypts[0]-h);
+            vertex(xpts[1], ypts[1]-h);
+            vertex(xpts[2], ypts[2]-h);
+            vertex(xpts[3], ypts[3]-h);
+          }
+
+          // I have knowingly retained the small flaw of not
+          // completely dealing with the corner conditions
+          // (the case in which both of the above are true).
+        }
+      }
+      endShape();
+    }
+  }
+}
+
+void updateGeometry() {
+  Gesture J;
+  for (int g=0; g<nGestures; g++) {
+    if ((J=gestureArray[g]).exists) {
+      if (g!=currentGestureID) {
+        advanceGesture(J);
+      } else if (!mousePressed) {
+        advanceGesture(J);
+      }
+    }
+  }
+}
+
+void advanceGesture(Gesture gesture) {
+  // Move a Gesture one step
+  if (gesture.exists) { // check
+    int nPts = gesture.nPoints;
+    int nPts1 = nPts-1;
+    Vec3f path[];
+    float jx = gesture.jumpDx;
+    float jy = gesture.jumpDy;
+
+    if (nPts > 0) {
+      path = gesture.path;
+      for (int i = nPts1; i > 0; i--) {
+        path[i].x = path[i-1].x;
+        path[i].y = path[i-1].y;
+      }
+      path[0].x = path[nPts1].x - jx;
+      path[0].y = path[nPts1].y - jy;
+      gesture.compile();
+    }
+  }
+}
+
+void clearGestures() {
+  for (int i = 0; i < nGestures; i++) {
+    gestureArray[i].clear();
+  }
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,31 @@
+// Status: Fixed
+
+/**
+ * Move Eye. 
+ * by Simon Greenwold.
+ * 
+ * The camera lifts up (controlled by mouseY) while looking at the same point.
+ */
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  fill(204);
+}
+
+void draw() {
+  lights();
+  background(0);
+  
+  // Change height of the camera with mouseY
+  camera(30.0, mouseY, 220.0, // eyeX, eyeY, eyeZ
+         0.0, 0.0, 0.0, // centerX, centerY, centerZ
+         0.0, 1.0, 0.0); // upX, upY, upZ
+  
+  noStroke();
+  box(90);
+  stroke(255);
+  line(-100, 0, 0, 100, 0, 0);
+  line(0, -100, 0, 0, 100, 0);
+  line(0, 0, -100, 0, 0, 100);
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,44 @@
+// Status: Fixed
+
+/** 
+ * Ortho vs Perspective. 
+ * 
+ * Click to see the difference between orthographic projection
+ * and perspective projection as applied to a simple box.
+ * The ortho() function sets an orthographic projection and 
+ * defines a parallel clipping volume. All objects with the 
+ * same dimension appear the same size, regardless of whether 
+ * they are near or far from the camera. The parameters to this 
+ * function specify the clipping volume where left and right 
+ * are the minimum and maximum x values, top and bottom are the 
+ * minimum and maximum y values, and near and far are the minimum 
+ * and maximum z values.
+ */
+
+void setup() 
+{
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+  fill(204);
+}
+
+void draw() 
+{
+  background(0);
+  lights();
+ 
+  if(mousePressed) {
+    float fov = PI/3.0; 
+    float cameraZ = (height/2.0) / tan(fov/2.0); 
+    perspective(fov, float(width)/float(height), 
+                cameraZ/2.0, cameraZ*2.0); 
+  } else {
+    ortho(0, width, 0, height, -200, +200);
+  }
+  
+  translate(width/2, height/2, 0);
+  rotateX(-PI/6); 
+  rotateY(PI/3); 
+  box(160); 
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,42 @@
+/**
+ * Perspective. 
+ * 
+ * Move the mouse left and right to change the field of view (fov).
+ * Click to modify the aspect ratio. The perspective() function
+ * sets a perspective projection applying foreshortening, making 
+ * distant objects appear smaller than closer ones. The parameters 
+ * define a viewing volume with the shape of truncated pyramid. 
+ * Objects near to the front of the volume appear their actual size, 
+ * while farther objects appear smaller. This projection simulates 
+ * the perspective of the world more accurately than orthographic projection. 
+ * The version of perspective without parameters sets the default 
+ * perspective and the version with four parameters allows the programmer 
+ * to set the area precisely.
+ */
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+}
+
+void draw() {
+  lights();
+  background(204);
+  float cameraY = height/2.0;
+  float fov = mouseX/float(width) * PI/2;
+  float cameraZ = cameraY / tan(fov / 2.0);
+  float aspect = float(width)/float(height);
+  if (mousePressed) {
+    aspect = aspect / 2.0;
+  }
+  perspective(fov, aspect, cameraZ/10.0, cameraZ*10.0);
+  
+  translate(width/2+30, height/2, 0);
+  rotateX(-PI/6);
+  rotateY(PI/3 + mouseY/float(height) * PI);
+  box(45);
+  translate(0, 0, -50);
+  box(30);
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,59 @@
+/**
+ * Brick Tower
+ * by Ira Greenberg. 
+ * 
+ * 3D castle tower constructed out of individual bricks.
+ * Uses the PVector and Cube classes. 
+ */
+
+float bricksPerLayer = 16.0;
+float brickLayers = 18.0;
+Cube brick;
+float brickWidth = 60, brickHeight = 25, brickDepth = 25;
+float radius = 175.0;
+float angle = 0;
+
+void setup(){
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  brick = new Cube(brickWidth, brickHeight, brickDepth);
+}
+
+void draw(){
+  background(0);
+  float tempX = 0, tempY = 0, tempZ = 0;
+  fill(182, 62, 29);
+  noStroke();
+  // Add basic light setup
+  lights();
+  translate(width/2, height*1.2, -380);
+  // Tip tower to see inside
+  rotateX(radians(-45));
+  // Slowly rotate tower
+  rotateY(frameCount * PI/600);
+  for (int i = 0; i < brickLayers; i++){
+    // Increment rows
+    tempY-=brickHeight;
+    // Alternate brick seams
+    angle = 360.0 / bricksPerLayer * i/2;
+    for (int j = 0; j < bricksPerLayer; j++){
+      tempZ = cos(radians(angle))*radius;
+      tempX = sin(radians(angle))*radius;
+      pushMatrix();
+      translate(tempX, tempY, tempZ);
+      rotateY(radians(angle));
+      // Add crenelation
+      if (i==brickLayers-1){
+        if (j%2 == 0){
+          brick.create();
+        }
+      }
+      // Create main tower
+      else {
+        brick.create();
+      }
+      popMatrix();
+      angle += 360.0/bricksPerLayer;
+    }
+  }
+}
@@ -0,0 +1,68 @@
+class Cube {
+
+  PVector[] vertices = new PVector[24];
+  PVector[] normals = new PVector[6];
+  float w, h, d;
+
+  Cube(){ }
+
+  Cube(float w, float h, float d){
+    this.w = w;
+    this.h = h;
+    this.d = d;
+
+    // Cube composed of 6 quads
+    // Front
+    normals[0] = new PVector(0, 0, 1);
+    vertices[0] = new PVector(-w/2, -h/2, d/2);
+    vertices[1] = new PVector(w/2, -h/2, d/2);
+    vertices[2] = new PVector(w/2, h/2, d/2);
+    vertices[3] = new PVector(-w/2, h/2, d/2);
+
+    // Left
+    normals[1] = new PVector(-1, 0, 0);
+    vertices[4] = new PVector(-w/2, -h/2, d/2);
+    vertices[5] = new PVector(-w/2, -h/2, -d/2);
+    vertices[6] = new PVector(-w/2, h/2, -d/2);
+    vertices[7] = new PVector(-w/2, h/2, d/2);
+
+    // Right
+    normals[2] = new PVector(1, 0, 0);
+    vertices[8] = new PVector(w/2, -h/2, d/2);
+    vertices[9] = new PVector(w/2, -h/2, -d/2);
+    vertices[10] = new PVector(w/2, h/2, -d/2);
+    vertices[11] = new PVector(w/2, h/2, d/2);
+
+    // Back
+    normals[3] = new PVector(0, 0, -1);
+    vertices[12] = new PVector(-w/2, -h/2, -d/2);  
+    vertices[13] = new PVector(w/2, -h/2, -d/2);
+    vertices[14] = new PVector(w/2, h/2, -d/2);
+    vertices[15] = new PVector(-w/2, h/2, -d/2);
+
+    // Top
+    normals[4] = new PVector(0, 1, 0);
+    vertices[16] = new PVector(-w/2, -h/2, d/2);
+    vertices[17] = new PVector(-w/2, -h/2, -d/2);
+    vertices[18] = new PVector(w/2, -h/2, -d/2);
+    vertices[19] = new PVector(w/2, -h/2, d/2);
+
+    // Bottom
+    normals[5] = new PVector(0, 1, 0);
+    vertices[20] = new PVector(-w/2, h/2, d/2);
+    vertices[21] = new PVector(-w/2, h/2, -d/2);
+    vertices[22] = new PVector(w/2, h/2, -d/2);
+    vertices[23] = new PVector(w/2, h/2, d/2);
+  }
+
+  void create(){
+    for (int i=0; i<6; i++){
+      beginShape(QUADS);
+      normal(normals[i].x, normals[i].y, normals[i].z);
+      for (int j = 0; j < 4; j++){
+        vertex(vertices[j+4*i].x, vertices[j+4*i].y, vertices[j+4*i].z);
+      }
+      endShape();
+    }
+  }
+} 
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,49 @@
+/**
+ * Cubic Grid 
+ * by Ira Greenberg. 
+ * 
+ * 3D translucent colored grid uses nested pushMatrix()
+ * and popMatrix() functions. 
+ */
+
+float boxSize = 80;
+float margin = boxSize*2;
+float depth = 400;
+color boxFill;
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+  hint(DISABLE_DEPTH_TEST);
+}
+
+void draw() {
+  background(255);
+  
+  // Center and spin grid
+  translate(width/2, height/2, -depth);
+  rotateY(frameCount * 0.01);
+  rotateX(frameCount * 0.01);
+
+  // Build grid using multiple translations 
+  for (float i =- depth/2+margin; i <= depth/2-margin; i += boxSize){
+    pushMatrix();
+    for (float j =- height+margin; j <= height-margin; j += boxSize){
+      pushMatrix();
+      for (float k =- width+margin; k <= width-margin; k += boxSize){
+        // Base fill color on counter values, abs function 
+        // ensures values stay within legal range
+        boxFill = color(abs(i), abs(j), abs(k), 50);
+        pushMatrix();
+        translate(k, j, i);
+        fill(boxFill);
+        box(boxSize, boxSize, boxSize);
+        popMatrix();
+      }
+      popMatrix();
+    }
+    popMatrix();
+  }
+}
+
@@ -0,0 +1 @@
+mode=Android
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,162 @@
+/**
+ * Geometry 
+ * by Marius Watz. 
+ * 
+ * Using sin/cos lookup tables, blends colors, and draws a series of 
+ * rotating arcs on the screen.
+*/
+ 
+// Trig lookup tables borrowed from Toxi; cryptic but effective.
+float sinLUT[];
+float cosLUT[];
+float SINCOS_PRECISION=1.0;
+int SINCOS_LENGTH= int((360.0/SINCOS_PRECISION));
+ 
+// System data
+boolean dosave=false;
+int num;
+float pt[];
+int style[];
+
+ 
+void setup() {
+  size(screenWidth, screenHeight, P3D);
+  background(255);
+  
+  // Fill the tables
+  sinLUT=new float[SINCOS_LENGTH];
+  cosLUT=new float[SINCOS_LENGTH];
+  for (int i = 0; i < SINCOS_LENGTH; i++) {
+    sinLUT[i]= (float)Math.sin(i*DEG_TO_RAD*SINCOS_PRECISION);
+    cosLUT[i]= (float)Math.cos(i*DEG_TO_RAD*SINCOS_PRECISION);
+  }
+ 
+  num = 40;
+  pt = new float[6*num]; // rotx, roty, deg, rad, w, speed
+  style = new int[2*num]; // color, render style
+ 
+  // Set up arc shapes
+  int index=0;
+  float prob;
+  for (int i=0; i<num; i++) {
+    pt[index++] = random(PI*2); // Random X axis rotation
+    pt[index++] = random(PI*2); // Random Y axis rotation
+ 
+    pt[index++] = random(60,80); // Short to quarter-circle arcs
+    if(random(100)>90) pt[index]=(int)random(8,27)*10;
+ 
+    pt[index++] = int(random(2,50)*5); // Radius. Space them out nicely
+ 
+    pt[index++] = random(4,32); // Width of band
+    if(random(100)>90) pt[index]=random(40,60); // Width of band
+ 
+    pt[index++] = radians(random(5,30))/5; // Speed of rotation
+ 
+    // get colors
+    prob = random(100);
+    if(prob<30) style[i*2]=colorBlended(random(1), 255,0,100, 255,0,0, 210);
+    else if(prob<70) style[i*2]=colorBlended(random(1), 0,153,255, 170,225,255, 210);
+    else if(prob<90) style[i*2]=colorBlended(random(1), 200,255,0, 150,255,0, 210);
+    else style[i*2]=color(255,255,255, 220);
+
+    if(prob<50) style[i*2]=colorBlended(random(1), 200,255,0, 50,120,0, 210);
+    else if(prob<90) style[i*2]=colorBlended(random(1), 255,100,0, 255,255,0, 210);
+    else style[i*2]=color(255,255,255, 220);
+
+    style[i*2+1]=(int)(random(100))%3;
+  }
+}
+ 
+void draw() {
+ 
+  background(0);
+ 
+  int index=0;
+  translate(width/2, height/2, 0);
+  rotateX(PI/6);
+  rotateY(PI/6);
+ 
+  for (int i = 0; i < num; i++) {
+    pushMatrix();
+ 
+    rotateX(pt[index++]);
+    rotateY(pt[index++]);
+ 
+    if(style[i*2+1]==0) {
+      stroke(style[i*2]);
+      noFill();
+      strokeWeight(1);
+      arcLine(0,0, pt[index++],pt[index++],pt[index++]);
+    }
+    else if(style[i*2+1]==1) {
+      fill(style[i*2]);
+      noStroke();
+      arcLineBars(0,0, pt[index++],pt[index++],pt[index++]);
+    }
+    else {
+      fill(style[i*2]);
+      noStroke();
+      arc(0,0, pt[index++],pt[index++],pt[index++]);
+    }
+ 
+    // increase rotation
+    pt[index-5]+=pt[index]/10;
+    pt[index-4]+=pt[index++]/20;
+ 
+    popMatrix();
+  }
+}
+ 
+ 
+// Get blend of two colors
+int colorBlended(float fract,
+float r, float g, float b,
+float r2, float g2, float b2, float a) {
+ 
+  r2 = (r2 - r);
+  g2 = (g2 - g);
+  b2 = (b2 - b);
+  return color(r + r2 * fract, g + g2 * fract, b + b2 * fract, a);
+}
+ 
+ 
+// Draw arc line
+void arcLine(float x,float y,float deg,float rad,float w) {
+  int a=(int)(min (deg/SINCOS_PRECISION,SINCOS_LENGTH-1));
+  int numlines=(int)(w/2);
+ 
+  for (int j=0; j<numlines; j++) {
+    beginShape();
+    for (int i=0; i<a; i++) { 
+      vertex(cosLUT[i]*rad+x,sinLUT[i]*rad+y);
+    }
+    endShape();
+    rad += 2;
+  }
+}
+ 
+// Draw arc line with bars
+void arcLineBars(float x,float y,float deg,float rad,float w) {
+  int a = int((min (deg/SINCOS_PRECISION,SINCOS_LENGTH-1)));
+  a /= 4;
+ 
+  beginShape(QUADS);
+  for (int i=0; i<a; i+=4) {
+    vertex(cosLUT[i]*(rad)+x,sinLUT[i]*(rad)+y);
+    vertex(cosLUT[i]*(rad+w)+x,sinLUT[i]*(rad+w)+y);
+    vertex(cosLUT[i+2]*(rad+w)+x,sinLUT[i+2]*(rad+w)+y);
+    vertex(cosLUT[i+2]*(rad)+x,sinLUT[i+2]*(rad)+y);
+  }
+  endShape();
+}
+ 
+// Draw solid arc
+void arc(float x,float y,float deg,float rad,float w) {
+  int a = int(min (deg/SINCOS_PRECISION,SINCOS_LENGTH-1));
+  beginShape(QUAD_STRIP);
+  for (int i = 0; i < a; i++) {
+    vertex(cosLUT[i]*(rad)+x,sinLUT[i]*(rad)+y);
+    vertex(cosLUT[i]*(rad+w)+x,sinLUT[i]*(rad+w)+y);
+  }
+  endShape();
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,10 @@
+class Dimension3D{
+   float w, h, d;
+   
+   Dimension3D(float w, float h, float d){
+     this.w=w;
+     this.h=h;
+     this.d=d;
+  }
+}
+
@@ -0,0 +1,55 @@
+// ISSUES: normals are not properly set
+
+/**
+ * I Like Icosahedra
+ * by Ira Greenberg.
+ * 
+ * This example plots icosahedra. The Icosahdron is a regular
+ * polyhedron composed of twenty equalateral triangles.
+ */
+ 
+Icosahedron ico1;
+Icosahedron ico2;
+Icosahedron ico3;
+
+void setup(){
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  ico1 = new Icosahedron(75);
+  ico2 = new Icosahedron(75);
+  ico3 = new Icosahedron(75);
+}
+
+void draw(){
+  background(0);
+  lights();
+  translate(width/2, height/2);
+
+  pushMatrix();
+  translate(-width/3.5, 0);
+  rotateX(frameCount*PI/185);
+  rotateY(frameCount*PI/-200);
+  stroke(170, 0, 0);
+  noFill();
+  ico1.create();
+  popMatrix();
+
+  pushMatrix();
+  rotateX(frameCount*PI/200);
+  rotateY(frameCount*PI/300);
+  stroke(150, 0, 180);
+  fill(170, 170, 0);
+  ico2.create();
+  popMatrix();
+
+  pushMatrix();
+  translate(width/3.5, 0);
+  rotateX(frameCount*PI/-200);
+  rotateY(frameCount*PI/200);
+  noStroke();
+  fill(0, 0, 185);
+  ico3.create();
+  popMatrix();
+}
+
+
@@ -0,0 +1,159 @@
+class Icosahedron extends Shape3D{
+
+  // icosahedron
+  PVector topPoint;
+  PVector[] topPent = new PVector[5];
+  PVector bottomPoint;
+  PVector[] bottomPent = new PVector[5];
+  float angle = 0, radius = 150;
+  float triDist;
+  float triHt;
+  float a, b, c;
+
+  // constructor
+  Icosahedron(float radius){
+    this.radius = radius;
+    init();
+  }
+
+  Icosahedron(PVector v, float radius){
+    super(v);
+    this.radius = radius;
+    init();
+  }
+
+  // calculate geometry
+  void init(){
+    c = dist(cos(0)*radius, sin(0)*radius, cos(radians(72))*radius,  sin(radians(72))*radius);
+    b = radius;
+    a = (float)(Math.sqrt(((c*c)-(b*b))));
+
+    triHt = (float)(Math.sqrt((c*c)-((c/2)*(c/2))));
+
+    for (int i=0; i<topPent.length; i++){
+      topPent[i] = new PVector(cos(angle)*radius, sin(angle)*radius, triHt/2.0f);
+      angle+=radians(72);
+    }
+    topPoint = new PVector(0, 0, triHt/2.0f+a);
+    angle = 72.0f/2.0f;
+    for (int i=0; i<topPent.length; i++){
+      bottomPent[i] = new PVector(cos(angle)*radius, sin(angle)*radius, -triHt/2.0f);
+      angle+=radians(72);
+    }
+    bottomPoint = new PVector(0, 0, -(triHt/2.0f+a));
+  }
+
+  // draws icosahedron 
+  void create(){
+    for (int i=0; i<topPent.length; i++){
+      // icosahedron top
+      beginShape(TRIANGLES);
+      if (i<topPent.length-1){
+        vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
+        vertex(x+topPoint.x, y+topPoint.y, z+topPoint.z);
+        vertex(x+topPent[i+1].x, y+topPent[i+1].y, z+topPent[i+1].z);
+      } 
+      else {
+        vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
+        vertex(x+topPoint.x, y+topPoint.y, z+topPoint.z);
+        vertex(x+topPent[0].x, y+topPent[0].y, z+topPent[0].z);
+      }
+      endShape(CLOSE);
+
+      // icosahedron bottom
+      beginShape(TRIANGLES);
+      if (i<bottomPent.length-1){
+        vertex(x+bottomPent[i].x, y+bottomPent[i].y, z+bottomPent[i].z);
+        vertex(x+bottomPoint.x, y+bottomPoint.y, z+bottomPoint.z);
+        vertex(x+bottomPent[i+1].x, y+bottomPent[i+1].y, z+bottomPent[i+1].z);
+      } 
+      else {
+        vertex(x+bottomPent[i].x, y+bottomPent[i].y, z+bottomPent[i].z);
+        vertex(x+bottomPoint.x, y+bottomPoint.y, z+bottomPoint.z);
+        vertex(x+bottomPent[0].x, y+bottomPent[0].y, z+bottomPent[0].z);
+      }
+      endShape(CLOSE);
+    }
+
+    // icosahedron body
+    for (int i=0; i<topPent.length; i++){
+      if (i<topPent.length-2){
+        beginShape(TRIANGLES);
+        vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
+        vertex(x+bottomPent[i+1].x, y+bottomPent[i+1].y, z+bottomPent[i+1].z);
+        vertex(x+bottomPent[i+2].x, y+bottomPent[i+2].y, z+bottomPent[i+2].z);
+        endShape(CLOSE);
+
+        beginShape(TRIANGLES);
+        vertex(x+bottomPent[i+2].x, y+bottomPent[i+2].y, z+bottomPent[i+2].z);
+        vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
+        vertex(x+topPent[i+1].x, y+topPent[i+1].y, z+topPent[i+1].z);
+        endShape(CLOSE);
+      } 
+      else if (i==topPent.length-2){
+        beginShape(TRIANGLES);
+        vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
+        vertex(x+bottomPent[i+1].x, y+bottomPent[i+1].y, z+bottomPent[i+1].z);
+        vertex(x+bottomPent[0].x, y+bottomPent[0].y, z+bottomPent[0].z);
+        endShape(CLOSE);
+
+        beginShape(TRIANGLES);
+        vertex(x+bottomPent[0].x, y+bottomPent[0].y, z+bottomPent[0].z);
+        vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
+        vertex(x+topPent[i+1].x, y+topPent[i+1].y, z+topPent[i+1].z);
+        endShape(CLOSE);
+      }
+      else if (i==topPent.length-1){
+        beginShape(TRIANGLES);
+        vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
+        vertex(x+bottomPent[0].x, y+bottomPent[0].y, z+bottomPent[0].z);
+        vertex(x+bottomPent[1].x, y+bottomPent[1].y, z+bottomPent[1].z);
+        endShape(CLOSE);
+
+        beginShape(TRIANGLES);
+        vertex(x+bottomPent[1].x, y+bottomPent[1].y, z+bottomPent[1].z);
+        vertex(x+topPent[i].x, y+topPent[i].y, z+topPent[i].z);
+        vertex(x+topPent[0].x, y+topPent[0].y, z+topPent[0].z);
+        endShape(CLOSE);
+      }
+    }
+  }
+
+  // overrided methods fom Shape3D
+  void rotZ(float theta){
+    float tx=0, ty=0, tz=0;
+    // top point
+    tx = cos(theta)*topPoint.x+sin(theta)*topPoint.y;
+    ty = sin(theta)*topPoint.x-cos(theta)*topPoint.y;
+    topPoint.x = tx;
+    topPoint.y = ty;
+
+    // bottom point
+    tx = cos(theta)*bottomPoint.x+sin(theta)*bottomPoint.y;
+    ty = sin(theta)*bottomPoint.x-cos(theta)*bottomPoint.y;
+    bottomPoint.x = tx;
+    bottomPoint.y = ty;
+
+    // top and bottom pentagons
+    for (int i=0; i<topPent.length; i++){
+      tx = cos(theta)*topPent[i].x+sin(theta)*topPent[i].y;
+      ty = sin(theta)*topPent[i].x-cos(theta)*topPent[i].y;
+      topPent[i].x = tx;
+      topPent[i].y = ty;
+
+      tx = cos(theta)*bottomPent[i].x+sin(theta)*bottomPent[i].y;
+      ty = sin(theta)*bottomPent[i].x-cos(theta)*bottomPent[i].y;
+      bottomPent[i].x = tx;
+      bottomPent[i].y = ty;
+    }
+  }
+
+  void rotX(float theta){
+  }
+
+  void rotY(float theta){
+  }
+
+
+}
+
@@ -0,0 +1,82 @@
+abstract class Shape3D{
+  float x, y, z;
+  float w, h, d;
+
+  Shape3D(){
+  }
+
+  Shape3D(float x, float y, float z){
+    this.x = x;
+    this.y = y;
+    this.z = z;
+  }
+
+  Shape3D(PVector p){
+    x = p.x;
+    y = p.y;
+    z = p.z;
+  }
+
+
+  Shape3D(Dimension3D dim){
+    w = dim.w;
+    h = dim.h;
+    d = dim.d;
+  }
+
+  Shape3D(float x, float y, float z, float w, float h, float d){
+    this.x = x;
+    this.y = y;
+    this.z = z;
+    this.w = w;
+    this.h = h;
+    this.d = d;
+  }
+
+  Shape3D(float x, float y, float z, Dimension3D dim){
+    this.x = x;
+    this.y = y;
+    this.z = z;
+    w = dim.w;
+    h = dim.h;
+    d = dim.d;
+  }
+
+  Shape3D(PVector p, Dimension3D dim){
+    x = p.x;
+    y = p.y;
+    z = p.z;
+    w = dim.w;
+    h = dim.h;
+    d = dim.d;
+  }
+
+  void setLoc(PVector p){
+    x=p.x;
+    y=p.y;
+    z=p.z;
+  }
+
+  void setLoc(float x, float y, float z){
+    this.x=x;
+    this.y=y;
+    this.z=z;
+  }
+
+
+  // override if you need these
+  void rotX(float theta){
+  }
+
+  void rotY(float theta){
+  }
+
+  void rotZ(float theta){
+  }
+
+
+  // must be implemented in subclasses
+  abstract void init();
+  abstract void create();
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,32 @@
+// ISSUES: non-interactive sketches don't show on the screen
+/**
+ * Primitives 3D. 
+ * 
+ * Placing mathematically 3D objects in synthetic space.
+ * The lights() method reveals their imagined dimension.
+ * The box() and sphere() functions each have one parameter
+ * which is used to specify their size. These shapes are
+ * positioned using the translate() function.
+ */
+ 
+size(640, 360, P3D);
+orientation(LANDSCAPE);
+background(0);
+lights();
+
+noStroke();
+pushMatrix();
+translate(130, height/2, 0);
+rotateY(1.25);
+rotateX(-0.4);
+box(100);
+popMatrix();
+
+noFill();
+stroke(255);
+pushMatrix();
+translate(500, height*0.35, -200);
+sphere(280);
+popMatrix();
+
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,75 @@
+/**
+ * RGB Cube.
+ * 
+ * The three primary colors of the additive color model are red, green, and blue.
+ * This RGB color cube displays smooth transitions between these colors. 
+ */
+ 
+float xmag, ymag = 0;
+float newXmag, newYmag = 0; 
+ 
+void setup() 
+{ 
+  size(640, 360, P3D); 
+  orientation(LANDSCAPE);
+  noStroke(); 
+  colorMode(RGB, 1); 
+} 
+ 
+void draw() 
+{ 
+  background(0.5);
+  
+  pushMatrix(); 
+ 
+  translate(width/2, height/2, -30); 
+  
+  newXmag = mouseX/float(width) * TWO_PI;
+  newYmag = mouseY/float(height) * TWO_PI;
+  
+  float diff = xmag-newXmag;
+  if (abs(diff) >  0.01) { xmag -= diff/4.0; }
+  
+  diff = ymag-newYmag;
+  if (abs(diff) >  0.01) { ymag -= diff/4.0; }
+  
+  rotateX(-ymag); 
+  rotateY(-xmag); 
+  
+  scale(90);
+  beginShape(QUADS);
+
+  fill(0, 1, 1); vertex(-1,  1,  1);
+  fill(1, 1, 1); vertex( 1,  1,  1);
+  fill(1, 0, 1); vertex( 1, -1,  1);
+  fill(0, 0, 1); vertex(-1, -1,  1);
+
+  fill(1, 1, 1); vertex( 1,  1,  1);
+  fill(1, 1, 0); vertex( 1,  1, -1);
+  fill(1, 0, 0); vertex( 1, -1, -1);
+  fill(1, 0, 1); vertex( 1, -1,  1);
+
+  fill(1, 1, 0); vertex( 1,  1, -1);
+  fill(0, 1, 0); vertex(-1,  1, -1);
+  fill(0, 0, 0); vertex(-1, -1, -1);
+  fill(1, 0, 0); vertex( 1, -1, -1);
+
+  fill(0, 1, 0); vertex(-1,  1, -1);
+  fill(0, 1, 1); vertex(-1,  1,  1);
+  fill(0, 0, 1); vertex(-1, -1,  1);
+  fill(0, 0, 0); vertex(-1, -1, -1);
+
+  fill(0, 1, 0); vertex(-1,  1, -1);
+  fill(1, 1, 0); vertex( 1,  1, -1);
+  fill(1, 1, 1); vertex( 1,  1,  1);
+  fill(0, 1, 1); vertex(-1,  1,  1);
+
+  fill(0, 0, 0); vertex(-1, -1, -1);
+  fill(1, 0, 0); vertex( 1, -1, -1);
+  fill(1, 0, 1); vertex( 1, -1,  1);
+  fill(0, 0, 1); vertex(-1, -1,  1);
+
+  endShape();
+  
+  popMatrix(); 
+} 
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,162 @@
+/**
+ * Legs class
+ * By Ira Greenberg <br />
+ * Processing for Flash Developers,
+ * Friends of ED, 2009
+ */
+ 
+class Legs {
+  // Instance properties with default values
+  float x = 0, y = 0, z = 0, w = 150, ht = 125;
+  color col = #77AA22;
+  // Advanced properties
+  float detailW = w/6.0;
+  float detailHt = ht/8.0;
+  float shoeBulge = detailHt*2.0;
+  float legGap = w/7.0;
+
+  // Dynamics properties
+  float velocity = .02, stepL, stepR, stepRate = random(10, 50); 
+  float speedX = 1.0, speedZ, spring, damping = .5, theta;
+
+  // Default constructor
+  Legs() {
+  }
+
+  // Standard constructor
+  Legs(float x, float z, float w, float ht, color col) {
+    this.x = x;
+    this.z = z;
+    this.w = w;
+    this.ht = ht;
+    this.col = col;
+    fill(col);
+    detailW = w/6.0;
+    detailHt = ht/8.0;
+    shoeBulge = detailHt*2.0;
+    legGap = w/7.0;
+    speedX = random(-speedX, speedX);
+  }
+
+  // Advanced constructor
+  Legs(float x, float z, float w, float ht, color col, float detailW, 
+        float detailHt, float shoeBulge, float legGap) {
+    this.x = x;
+    this.z = z;
+    this.w = w;
+    this.ht = ht;
+    this.col = col;
+    this.detailW = detailW;
+    this.detailHt = detailHt;
+    this.shoeBulge = shoeBulge;
+    this.legGap = legGap;
+    speedX = random(-speedX, speedX);
+  }
+
+  // Draw legs
+  void create() {
+    fill(col);
+    float footWidth = (w - legGap)/2;
+    beginShape();
+    vertex(x - w/2, y - ht, z);
+    vertex(x - w/2, y - ht + detailHt, z);
+    vertex(x - w/2 + detailW, y - ht + detailHt, z);
+    // left foot
+    vertex(x - w/2 + detailW,  y + stepL, z);
+    curveVertex(x - w/2 + detailW, y + stepL, z);
+    curveVertex(x - w/2 + detailW, y + stepL, z);
+    curveVertex(x - w/2 + detailW - shoeBulge,  y + detailHt/2 + stepL, z);
+    curveVertex(x - w/2,  y + detailHt + stepL, z);
+    curveVertex(x - w/2,  y + detailHt + stepL, z);
+    vertex(x - w/2 + footWidth,  y + detailHt + stepL*.9, z);
+    // end left foot
+    vertex(x - w/2 + footWidth + legGap/2,  y - ht + detailHt, z);
+    vertex(x - w/2 + footWidth + legGap/2,  y - ht + detailHt, z);
+    // right foot
+    vertex(x - w/2 + footWidth + legGap,  y + detailHt + stepR*.9, z);
+    vertex(x + w/2,  y + detailHt + stepR, z);
+    curveVertex(x + w/2,  y + detailHt + stepR, z);
+    curveVertex(x + w/2,  y + detailHt + stepR, z);
+    curveVertex(x + w/2 - detailW + shoeBulge,  y + detailHt/2 + stepR, z);
+    curveVertex(x + w/2 - detailW,  y + stepR, z);
+    vertex(x + w/2 - detailW,  y + stepR, z);
+    // end right foot
+    vertex(x + w/2 - detailW,  y - ht + detailHt, z);
+    vertex(x + w/2,  y - ht + detailHt, z);
+    vertex(x + w/2,  y - ht, z);
+    endShape(CLOSE);
+  }
+
+  // Set advanced property values
+  void setDetails(float detailW, float detailHt, float shoeBulge, float legGap) {
+    this.detailW = detailW;
+    this.detailHt = detailHt;
+    this.shoeBulge = shoeBulge;
+    this.legGap = legGap;
+  }
+
+  // Make the legs step
+  void step(float stepRate) {
+    this.stepRate = stepRate;
+    spring = ht/2.0;
+    stepL = sin(theta)*spring;
+    stepR = cos(theta)*spring;
+    theta += radians(stepRate);
+  }
+  
+  // Alternative overloaded step method
+  void step() {
+    spring = ht/2.0;
+    stepL = sin(theta)*spring;
+    stepR = cos(theta)*spring;
+    theta += radians(stepRate);
+  }
+
+
+  // Moves legs along x, y, z axes
+  void move() {
+    // Move legs along y-axis
+    y = stepR*damping;
+
+    // Move legs along x-axis and
+    // check for collision against frame edge
+    x += speedX;
+    if (screenX(x, y, z) > width) {
+      speedX *= -1;
+    }
+    if (screenX(x, y, z) < 0) {
+      speedX *= -1;
+    }
+
+    // Move legs along z-axis based on speed of stepping 
+    // and check for collision against extremes
+    speedZ = (stepRate*velocity);
+    z += speedZ;
+    if (z > 400) {
+      z = 400;
+      velocity *= -1;
+    }
+    if (z < -100) {
+      z = -100;
+      velocity *= -1;
+    }
+  }
+  
+  void setDynamics(float speedX, float spring, float damping) {
+    this.speedX = speedX;
+    this.spring = spring;
+    this.damping = damping;
+  }
+}
+
+
+
+
+
+
+
+
+
+
+
+
@@ -0,0 +1,48 @@
+// ISSUES: shapes containing curve vertices don't render properly
+
+/**
+ * Run-Amuck
+ * By Ira Greenberg <br />
+ * Processing for Flash Developers,
+ * Friends of ED, 2009
+ */
+
+int count = 250;
+Legs[] legs = new Legs[count];
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+  for (int i = 0; i < legs.length; i++) {
+    legs[i] = new Legs(random(-10, 10), random(-50, 150), random(.5, 5), 
+                       random(.5, 5), color(random(255), random(255), random(255)));
+  }
+}
+
+void draw() {
+  background(0);
+  translate(width/2, height/2);
+  noStroke();
+  fill(35);
+
+  // Draw ground plane
+  beginShape(QUADS);
+  vertex(-width*2, 0, -1000);
+  vertex(width*2, 0, -1000);
+  vertex(width/2, height/2, 400);
+  vertex(-width/2, height/2, 400);
+  endShape(CLOSE);
+
+  // Update and draw the legs
+  for (int i = 0; i < legs.length; i++) {
+    legs[i].create();
+    // Set foot step rate
+    legs[i].step(random(10, 50));
+    // Move legs along x, y, z axes
+    // z-movement dependent upon step rate
+    legs[i].move();
+  }
+}
+
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,117 @@
+/**
+ * Shape Transform
+ * by Ira Greenberg.  
+ * 
+ * Illustrates the geometric relationship 
+ * between Cube, Pyramid, Cone and 
+ * Cylinder 3D primitives.
+ * 
+ * Instructions:<br />
+ * Up Arrow - increases points<br />
+ * Down Arrow - decreases points<br />
+ * 'p' key toggles between cube/pyramid<br />
+ */
+
+int pts = 4; 
+float angle = 0;
+float radius = 99;
+float cylinderLength = 95;
+
+//vertices
+PVector vertices[][];
+boolean isPyramid = false;
+
+float angleInc;
+
+void setup(){
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+  angleInc = PI/300.0;
+}
+
+void draw(){
+  background(170, 95, 95);
+  lights();
+  fill(255, 200, 200);
+  translate(width/2, height/2);
+  rotateX(frameCount * angleInc);
+  rotateY(frameCount * angleInc);
+  rotateZ(frameCount * angleInc);
+
+  // initialize vertex arrays
+  vertices = new PVector[2][pts+1];
+
+  // fill arrays
+  for (int i = 0; i < 2; i++){
+    angle = 0;
+    for(int j = 0; j <= pts; j++){
+      vertices[i][j] = new PVector();
+      if (isPyramid){
+        if (i==1){
+          vertices[i][j].x = 0;
+          vertices[i][j].y = 0;
+        }
+        else {
+          vertices[i][j].x = cos(radians(angle)) * radius;
+          vertices[i][j].y = sin(radians(angle)) * radius;
+        }
+      } 
+      else {
+        vertices[i][j].x = cos(radians(angle)) * radius;
+        vertices[i][j].y = sin(radians(angle)) * radius;
+      }
+      vertices[i][j].z = cylinderLength; 
+      // the .0 after the 360 is critical
+      angle += 360.0/pts;
+    }
+    cylinderLength *= -1;
+  }
+
+  // draw cylinder tube
+  beginShape(QUAD_STRIP);
+  for(int j = 0; j <= pts; j++){
+    vertex(vertices[0][j].x, vertices[0][j].y, vertices[0][j].z);
+    vertex(vertices[1][j].x, vertices[1][j].y, vertices[1][j].z);
+  }
+  endShape();
+
+  //draw cylinder ends
+  for (int i = 0; i < 2; i++){
+    beginShape();
+    for(int j = 0; j < pts; j++){
+      vertex(vertices[i][j].x, vertices[i][j].y, vertices[i][j].z);
+    }
+    endShape(CLOSE);
+  }
+}
+
+
+/*
+ up/down arrow keys control
+ polygon detail.
+ */
+void keyPressed(){
+  if(key == CODED) { 
+    // pts
+    if (keyCode == UP) { 
+      if (pts < 90){
+        pts++;
+      } 
+    } 
+    else if (keyCode == DOWN) { 
+      if (pts > 4){
+        pts--;
+      }
+    } 
+  }
+  if (key =='p'){
+    if (isPyramid){
+      isPyramid = false;
+    } 
+    else {
+      isPyramid = true;
+    }
+  }
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,73 @@
+
+class Cube {
+
+  // Properties
+  int w, h, d;
+  int shiftX, shiftY, shiftZ;
+
+  // Constructor
+  Cube(int w, int h, int d, int shiftX, int shiftY, int shiftZ){
+    this.w = w;
+    this.h = h;
+    this.d = d;
+    this.shiftX = shiftX;
+    this.shiftY = shiftY;
+    this.shiftZ = shiftZ;
+  }
+
+  // Main cube drawing method, which looks 
+  // more confusing than it really is. It's 
+  // just a bunch of rectangles drawn for 
+  // each cube face
+  void drawCube(){
+    beginShape(QUADS);
+    // Front face
+    normal(0, 0, 1);
+    vertex(-w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+    vertex(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+    vertex(w + shiftX, h + shiftY, -d/2 + shiftZ); 
+    vertex(-w/2 + shiftX, h + shiftY, -d/2 + shiftZ); 
+
+    // Back face
+    normal(0, 0, -1);
+    vertex(-w/2 + shiftX, -h/2 + shiftY, d + shiftZ); 
+    vertex(w + shiftX, -h/2 + shiftY, d + shiftZ); 
+    vertex(w + shiftX, h + shiftY, d + shiftZ); 
+    vertex(-w/2 + shiftX, h + shiftY, d + shiftZ);
+
+    // Left face
+    normal(1, 0, 0);
+    vertex(-w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+    vertex(-w/2 + shiftX, -h/2 + shiftY, d + shiftZ); 
+    vertex(-w/2 + shiftX, h + shiftY, d + shiftZ); 
+    vertex(-w/2 + shiftX, h + shiftY, -d/2 + shiftZ); 
+
+    // Right face
+    normal(-1, 0, 0);
+    vertex(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+    vertex(w + shiftX, -h/2 + shiftY, d + shiftZ); 
+    vertex(w + shiftX, h + shiftY, d + shiftZ); 
+    vertex(w + shiftX, h + shiftY, -d/2 + shiftZ); 
+
+    // Top face
+    normal(0, 1, 0);
+    vertex(-w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+    vertex(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+    vertex(w + shiftX, -h/2 + shiftY, d + shiftZ); 
+    vertex(-w/2 + shiftX, -h/2 + shiftY, d + shiftZ); 
+
+    // Bottom face
+    normal(0, -1, 0);
+    vertex(-w/2 + shiftX, h + shiftY, -d/2 + shiftZ); 
+    vertex(w + shiftX, h + shiftY, -d/2 + shiftZ); 
+    vertex(w + shiftX, h + shiftY, d + shiftZ); 
+    vertex(-w/2 + shiftX, h + shiftY, d + shiftZ);  
+
+    endShape(); 
+
+    // Add some rotation to each box for pizazz.
+    rotateY(radians(1));
+    rotateX(radians(1));
+    rotateZ(radians(1));
+  }
+}
@@ -0,0 +1,63 @@
+/**
+ * Space Junk  
+ * by Ira Greenberg. 
+ * Zoom suggestion 
+ * by Danny Greenberg.
+ * 
+ * Rotating cubes in space using a custom Cube class. 
+ * Color controlled by light sources. Move the mouse left
+ * and right to zoom.
+ */
+
+// Used for oveall rotation
+float ang;
+
+// Cube count-lower/raise to test P3D/OPENGL performance
+int limit = 100;
+
+// Array for all cubes
+Cube[]cubes = new Cube[limit];
+
+void setup() {
+  size(screenWidth, screenHeight, P3D); 
+  background(0); 
+  noStroke();
+
+  // Instantiate cubes, passing in random vals for size and postion
+  for (int i = 0; i< cubes.length; i++){
+    cubes[i] = new Cube(int(random(-10, 10)), int(random(-10, 10)), 
+    int(random(-10, 10)), int(random(-140, 140)), int(random(-140, 140)), 
+    int(random(-140, 140)));
+  }
+}
+
+void draw(){
+  background(0); 
+  fill(200);
+
+  // Set up some different colored lights
+  pointLight(51, 102, 255, 65, 60, 100); 
+  pointLight(200, 40, 60, -65, -60, -150);
+
+  // Raise overall light in scene 
+  ambientLight(70, 70, 10); 
+
+  // Center geometry in display windwow.
+  // you can change 3rd argument ('0')
+  // to move block group closer(+)/further(-)
+  translate(width/2, height/2, -200 + mouseX * 0.65);
+
+  // Rotate around y and x axes
+  rotateY(radians(ang));
+  rotateX(radians(ang));
+
+  // Draw cubes
+  for (int i = 0; i < cubes.length; i++){
+    cubes[i].drawCube();
+  }
+  
+  // Used in rotate function calls above
+  ang++;
+}
+
+
@@ -0,0 +1 @@
+mode=Android
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,174 @@
+// ISSUES: normals not correct at the poles, texture border visible
+
+/**
+ * Textured Sphere 
+ * by Mike 'Flux' Chang (cleaned up by Aaron Koblin). 
+ * Based on code by Toxi. 
+ * 
+ * A 3D textured sphere with simple rotation control.
+ * Note: Controls will be inverted when sphere is upside down. 
+ * Use an "arc ball" to deal with this appropriately.
+ */ 
+
+PImage bg;
+PImage texmap;
+
+int sDetail = 35;  // Sphere detail setting
+float rotationX = 0;
+float rotationY = 0;
+float velocityX = 0;
+float velocityY = 0;
+float globeRadius = 450;
+float pushBack = 0;
+
+float[] cx, cz, sphereX, sphereY, sphereZ;
+float sinLUT[];
+float cosLUT[];
+float SINCOS_PRECISION = 0.5;
+int SINCOS_LENGTH = int(360.0 / SINCOS_PRECISION);
+
+
+void setup() {
+  size(screenWidth, screenHeight, P3D);  
+  smooth();
+  texmap = loadImage("world32k.jpg");    
+  initializeSphere(sDetail);
+}
+
+void draw() {    
+  background(0);            
+  renderGlobe(); 
+}
+
+void renderGlobe() {
+  pushMatrix();
+  translate(width/2.0, height/2.0, pushBack);
+  pushMatrix();
+  noFill();
+  stroke(255,200);
+  strokeWeight(2);  
+  popMatrix();
+  lights();    
+  pushMatrix();
+  rotateX( radians(-rotationX) );  
+  rotateY( radians(270 - rotationY) );
+  fill(200);
+  noStroke();
+  textureMode(IMAGE);  
+  texturedSphere(globeRadius, texmap);
+  popMatrix();  
+  popMatrix();
+  rotationX += velocityX;
+  rotationY += velocityY;
+  velocityX *= 0.95;
+  velocityY *= 0.95;
+  
+  // Implements mouse control (interaction will be inverse when sphere is  upside down)
+  if(mousePressed){
+    velocityX += (mouseY-pmouseY) * 0.01;
+    velocityY -= (mouseX-pmouseX) * 0.01;
+  }
+}
+
+void initializeSphere(int res)
+{
+  sinLUT = new float[SINCOS_LENGTH];
+  cosLUT = new float[SINCOS_LENGTH];
+
+  for (int i = 0; i < SINCOS_LENGTH; i++) {
+    sinLUT[i] = (float) Math.sin(i * DEG_TO_RAD * SINCOS_PRECISION);
+    cosLUT[i] = (float) Math.cos(i * DEG_TO_RAD * SINCOS_PRECISION);
+  }
+
+  float delta = (float)SINCOS_LENGTH/res;
+  float[] cx = new float[res];
+  float[] cz = new float[res];
+  
+  // Calc unit circle in XZ plane
+  for (int i = 0; i < res; i++) {
+    cx[i] = -cosLUT[(int) (i*delta) % SINCOS_LENGTH];
+    cz[i] = sinLUT[(int) (i*delta) % SINCOS_LENGTH];
+  }
+  
+  // Computing vertexlist vertexlist starts at south pole
+  int vertCount = res * (res-1) + 2;
+  int currVert = 0;
+  
+  // Re-init arrays to store vertices
+  sphereX = new float[vertCount];
+  sphereY = new float[vertCount];
+  sphereZ = new float[vertCount];
+  float angle_step = (SINCOS_LENGTH*0.5f)/res;
+  float angle = angle_step;
+  
+  // Step along Y axis
+  for (int i = 1; i < res; i++) {
+    float curradius = sinLUT[(int) angle % SINCOS_LENGTH];
+    float currY = -cosLUT[(int) angle % SINCOS_LENGTH];
+    for (int j = 0; j < res; j++) {
+      sphereX[currVert] = cx[j] * curradius;
+      sphereY[currVert] = currY;
+      sphereZ[currVert++] = cz[j] * curradius;
+    }
+    angle += angle_step;
+  }
+  sDetail = res;
+}
+
+// Generic routine to draw textured sphere
+void texturedSphere(float r, PImage t) 
+{
+  int v1,v11,v2;
+  r = (r + 240 ) * 0.33;
+  beginShape(TRIANGLE_STRIP);
+  texture(t);
+  float iu=(float)(t.width-1)/(sDetail);
+  float iv=(float)(t.height-1)/(sDetail);
+  float u=0,v=iv;
+  for (int i = 0; i < sDetail; i++) {
+    vertex(0, -r, 0,u,0);
+    vertex(sphereX[i]*r, sphereY[i]*r, sphereZ[i]*r, u, v);
+    u+=iu;
+  }
+  vertex(0, -r, 0,u,0);
+  vertex(sphereX[0]*r, sphereY[0]*r, sphereZ[0]*r, u, v);
+  endShape();   
+  
+  // Middle rings
+  int voff = 0;
+  for(int i = 2; i < sDetail; i++) {
+    v1=v11=voff;
+    voff += sDetail;
+    v2=voff;
+    u=0;
+    beginShape(TRIANGLE_STRIP);
+    texture(t);
+    for (int j = 0; j < sDetail; j++) {
+      vertex(sphereX[v1]*r, sphereY[v1]*r, sphereZ[v1++]*r, u, v);
+      vertex(sphereX[v2]*r, sphereY[v2]*r, sphereZ[v2++]*r, u, v+iv);
+      u+=iu;
+    }
+  
+    // Close each ring
+    v1=v11;
+    v2=voff;
+    vertex(sphereX[v1]*r, sphereY[v1]*r, sphereZ[v1]*r, u, v);
+    vertex(sphereX[v2]*r, sphereY[v2]*r, sphereZ[v2]*r, u, v+iv);
+    endShape();
+    v+=iv;
+  }
+  u=0;
+  
+  // Add the northern cap
+  beginShape(TRIANGLE_STRIP);
+  texture(t);
+  for (int i = 0; i < sDetail; i++) {
+    v2 = voff + i;
+    vertex(sphereX[v2]*r, sphereY[v2]*r, sphereZ[v2]*r, u, v);
+    vertex(0, r, 0,u,v+iv);    
+    u+=iu;
+  }
+  vertex(sphereX[voff]*r, sphereY[voff]*r, sphereZ[voff]*r, u, v);
+  endShape();
+  
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,183 @@
+/**
+ * Interactive Toroid
+ * by Ira Greenberg. 
+ * 
+ * Illustrates the geometric relationship between Toroid, Sphere, and Helix
+ * 3D primitives, as well as lathing principal.
+ * 
+ * Instructions: <br />
+ * UP arrow key pts++ <br />
+ * DOWN arrow key pts-- <br />
+ * LEFT arrow key segments-- <br />
+ * RIGHT arrow key segments++ <br />
+ * 'a' key toroid radius-- <br />
+ * 's' key toroid radius++ <br />
+ * 'z' key initial polygon radius-- <br />
+ * 'x' key initial polygon radius++ <br />
+ * 'w' key toggle wireframe/solid shading <br />
+ * 'h' key toggle sphere/helix <br />
+ */
+
+int pts = 20; 
+float angle = 0;
+float radius = 60.0;
+
+// lathe segments
+int segments = 30;
+float latheAngle = 0;
+float latheRadius = 100.0;
+
+//vertices
+PVector vertices[], vertices2[];
+
+// for shaded or wireframe rendering 
+boolean isWireFrame = false;
+
+// for optional helix
+boolean isHelix = false;
+float helixOffset = 5.0;
+
+void setup(){
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+}
+
+void draw(){
+  background(50, 64, 42);
+  // basic lighting setup
+  lights();
+  // 2 rendering styles
+  // wireframe or solid
+  if (isWireFrame){
+    stroke(255, 255, 150);
+    noFill();
+  } 
+  else {
+    noStroke();
+    fill(150, 195, 125);
+  }
+  //center and spin toroid
+  translate(width/2, height/2, -100);
+
+  rotateX(frameCount*PI/150);
+  rotateY(frameCount*PI/170);
+  rotateZ(frameCount*PI/90);
+
+  // initialize point arrays
+  vertices = new PVector[pts+1];
+  vertices2 = new PVector[pts+1];
+
+  // fill arrays
+  for(int i=0; i<=pts; i++){
+    vertices[i] = new PVector();
+    vertices2[i] = new PVector();
+    vertices[i].x = latheRadius + sin(radians(angle))*radius;
+    if (isHelix){
+      vertices[i].z = cos(radians(angle))*radius-(helixOffset* 
+        segments)/2;
+    } 
+    else{
+      vertices[i].z = cos(radians(angle))*radius;
+    }
+    angle+=360.0/pts;
+  }
+
+  // draw toroid
+  latheAngle = 0;
+  for(int i=0; i<=segments; i++){
+    beginShape(QUAD_STRIP);
+    for(int j=0; j<=pts; j++){
+      if (i>0){
+        vertex(vertices2[j].x, vertices2[j].y, vertices2[j].z);
+      }
+      vertices2[j].x = cos(radians(latheAngle))*vertices[j].x;
+      vertices2[j].y = sin(radians(latheAngle))*vertices[j].x;
+      vertices2[j].z = vertices[j].z;
+      // optional helix offset
+      if (isHelix){
+        vertices[j].z+=helixOffset;
+      } 
+      vertex(vertices2[j].x, vertices2[j].y, vertices2[j].z);
+    }
+    // create extra rotation for helix
+    if (isHelix){
+      latheAngle+=720.0/segments;
+    } 
+    else {
+      latheAngle+=360.0/segments;
+    }
+    endShape();
+  }
+}
+
+/*
+ left/right arrow keys control ellipse detail
+ up/down arrow keys control segment detail.
+ 'a','s' keys control lathe radius
+ 'z','x' keys control ellipse radius
+ 'w' key toggles between wireframe and solid
+ 'h' key toggles between toroid and helix
+ */
+void keyPressed(){
+  if(key == CODED) { 
+    // pts
+    if (keyCode == UP) { 
+      if (pts<40){
+        pts++;
+      } 
+    } 
+    else if (keyCode == DOWN) { 
+      if (pts>3){
+        pts--;
+      }
+    } 
+    // extrusion length
+    if (keyCode == LEFT) { 
+      if (segments>3){
+        segments--; 
+      }
+    } 
+    else if (keyCode == RIGHT) { 
+      if (segments<80){
+        segments++; 
+      }
+    } 
+  }
+  // lathe radius
+  if (key =='a'){
+    if (latheRadius>0){
+      latheRadius--; 
+    }
+  } 
+  else if (key == 's'){
+    latheRadius++; 
+  }
+  // ellipse radius
+  if (key =='z'){
+    if (radius>10){
+      radius--;
+    }
+  } 
+  else if (key == 'x'){
+    radius++;
+  }
+  // wireframe
+  if (key =='w'){
+    if (isWireFrame){
+      isWireFrame=false;
+    } 
+    else {
+      isWireFrame=true;
+    }
+  }
+  // helix
+  if (key =='h'){
+    if (isHelix){
+      isHelix=false;
+    } 
+    else {
+      isHelix=true;
+    }
+  }
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,68 @@
+/**
+ * Vertices 
+ * by Simon Greenwold.
+ * 
+ * Draw a cylinder centered on the y-axis, going down 
+ * from y=0 to y=height. The radius at the top can be 
+ * different from the radius at the bottom, and the 
+ * number of sides drawn is variable.
+ */
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+}
+
+void draw() {
+  background(0);
+  lights();
+  translate(width / 2, height / 2);
+  rotateY(map(mouseX, 0, width, 0, PI));
+  rotateZ(map(mouseY, 0, height, 0, -PI));
+  noStroke();
+  fill(255, 255, 255);
+  translate(0, -40, 0);
+  drawCylinder(10, 180, 200, 16); // Draw a mix between a cylinder and a cone
+  //drawCylinder(70, 70, 120, 64); // Draw a cylinder
+  //drawCylinder(0, 180, 200, 4); // Draw a pyramid
+}
+
+void drawCylinder(float topRadius, float bottomRadius, float tall, int sides) {
+  float angle = 0;
+  float angleIncrement = TWO_PI / sides;
+  beginShape(QUAD_STRIP);
+  for (int i = 0; i < sides + 1; ++i) {
+    vertex(topRadius*cos(angle), 0, topRadius*sin(angle));
+    vertex(bottomRadius*cos(angle), tall, bottomRadius*sin(angle));
+    angle += angleIncrement;
+  }
+  endShape();
+  
+  // If it is not a cone, draw the circular top cap
+  if (topRadius != 0) {
+    angle = 0;
+    beginShape(TRIANGLE_FAN);
+    
+    // Center point
+    vertex(0, 0, 0);
+    for (int i = 0; i < sides + 1; i++) {
+      vertex(topRadius * cos(angle), 0, topRadius * sin(angle));
+      angle += angleIncrement;
+    }
+    endShape();
+  }
+
+  // If it is not a cone, draw the circular bottom cap
+  if (bottomRadius != 0) {
+    angle = 0;
+    beginShape(TRIANGLE_FAN);
+
+    // Center point
+    vertex(0, tall, 0);
+    for (int i = 0; i < sides + 1; i++) {
+      vertex(bottomRadius * cos(angle), tall, bottomRadius * sin(angle));
+      angle += angleIncrement;
+    }
+    endShape();
+  }
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,81 @@
+// Blending, by Andres Colubri
+// Images can be blended using one of the 10 blending modes 
+// available in OPENGL2.   
+// Images by Kevin Bjorke.
+
+PImage pic1, pic2;
+int selMode = REPLACE;
+String name = "replace";
+int picAlpha = 255;
+
+void setup() {
+  size(800, 480, P3D);
+  orientation(LANDSCAPE);
+  
+  PFont font = createFont(PFont.list()[0], 20);
+  textFont(font, 20);    
+  
+  pic1 = loadImage("bjorke1.jpg");
+  pic2 = loadImage("bjorke2.jpg"); 
+}
+
+void draw() {
+  background(0);
+  
+  tint(255, 255);
+  image(pic1, 0, 0, pic1.width, pic1.height);
+  
+  blendMode(selMode);  
+  tint(255, picAlpha);
+  image(pic2, 0, 0, pic2.width, pic2.height);
+    
+  blendMode(REPLACE);    
+  fill(200, 50, 50);
+  rect(0, height - 50, map(picAlpha, 0, 255, 0, width), 50);
+  fill(255);
+
+  text("Selected blend mode: " + name + ". Click to move to next", 10, pic1.height + 30);
+  text("Drag this bar to change alpha of image", 10, height - 18);
+}
+
+void mousePressed() {
+  if (height - 50 < mouseY) return;
+  
+  if (selMode == REPLACE) { 
+    selMode = BLEND;
+    name = "blend";
+  } else if (selMode == BLEND) { 
+    selMode = ADD;
+    name = "add";
+  } else if (selMode == ADD) { 
+    selMode = SUBTRACT;
+    name = "subtract";
+  } else if (selMode == SUBTRACT) { 
+    selMode = LIGHTEST;
+    name = "lightest";
+  } else if (selMode == LIGHTEST) { 
+    selMode = DARKEST;
+    name = "darkest";
+  } else if (selMode == DARKEST) { 
+    selMode = DIFFERENCE;
+    name = "difference";
+  } else if (selMode == DIFFERENCE) { 
+    selMode = EXCLUSION;  
+    name = "exclusion";
+  } else if (selMode == EXCLUSION) { 
+    selMode = MULTIPLY;  
+    name = "multiply";
+  } else if (selMode == MULTIPLY) { 
+    selMode = SCREEN;
+    name = "screen";
+  } else if (selMode == SCREEN) { 
+    selMode = REPLACE;
+    name = "replace";
+  }
+}
+
+void mouseDragged() {
+  if (height - 50 < mouseY) {
+    picAlpha = int(map(mouseX, 0, width, 0, 255));
+  }
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,46 @@
+// ISSUES: It crashes
+
+/**
+ * Explode 
+ * by Daniel Shiffman. 
+ * 
+ * Mouse horizontal location controls breaking apart of image and 
+ * Maps pixels from a 2D image into 3D space. Pixel brightness controls 
+ * translation along z axis. 
+ */
+ 
+PImage img;       // The source image
+int cellsize = 2; // Dimensions of each cell in the grid
+int columns, rows;   // Number of columns and rows in our system
+
+void setup() {
+  size(640, 360, P3D); 
+  orientation(LANDSCAPE);
+  img = loadImage("eames.jpg");  // Load the image
+  columns = img.width / cellsize;  // Calculate # of columns
+  rows = img.height / cellsize;  // Calculate # of rows
+}
+
+void draw() {
+  background(0);
+  // Begin loop for columns
+  for ( int i = 0; i < columns; i++) {
+    // Begin loop for rows
+    for ( int j = 0; j < rows; j++) {
+      int x = i*cellsize + cellsize/2;  // x position
+      int y = j*cellsize + cellsize/2;  // y position
+      int loc = x + y*img.width;  // Pixel array location
+      color c = img.pixels[loc];  // Grab the color
+      // Calculate a z position as a function of mouseX and pixel brightness
+      float z = (mouseX / float(width)) * brightness(img.pixels[loc]) - 20.0;
+      // Translate to the location, set fill and stroke, and draw the rect
+      pushMatrix();
+      translate(x + 200, y + 100, z);
+      fill(c, 204);
+      noStroke();
+      rectMode(CENTER);
+      rect(0, 0, cellsize, cellsize);
+      popMatrix();
+    }
+  }
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,47 @@
+/**
+ * Extrusion. 
+ * 
+ * Converts a flat image into spatial data points and rotates the points
+ * around the center.
+ */
+
+PImage extrude;
+int[][] values;
+float angle = 0;
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  
+  // Load the image into a new array
+  extrude = loadImage("ystone08.jpg");
+  extrude.loadPixels();
+  values = new int[extrude.width][extrude.height];
+  for (int y = 0; y < extrude.height; y++) {
+    for (int x = 0; x < extrude.width; x++) {
+      color pixel = extrude.get(x, y);
+      values[x][y] = int(brightness(pixel));
+    }
+  }
+}
+
+void draw() {
+  background(0);
+  
+  // Update the angle
+  angle += 0.005;
+  
+  // Rotate around the center axis
+  translate(width/2, 0, +128);
+  rotateY(angle);  
+  translate(-extrude.width/2, 100, +128);
+  
+  // Display the image mass
+  for (int y = 0; y < extrude.height; y++) {
+    for (int x = 0; x < extrude.width; x++) {
+      stroke(values[x][y]);
+      point(x, y, -values[x][y]);
+    }
+  }
+
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,49 @@
+/**
+ * Extrusion. 
+ * 
+ * Converts a flat image into spatial data points and rotates the points
+ * around the center.
+ */
+
+PImage a;
+boolean onetime = true;
+int[][] aPixels;
+int[][] values;
+float angle;
+
+void setup() {
+  size(screenWidth, screenHeight, P3D);
+  
+  aPixels = new int[width][height];
+  values = new int[width][height];
+  noFill();
+
+  // Load the image into a new array
+  // Extract the values and store in an array
+  a = loadImage("ystone08.jpg");
+  a.loadPixels();
+  for (int i = 0; i < a.height; i++) {
+    for (int j = 0; j < a.width; j++) {
+      aPixels[j][i] = a.pixels[i*a.width + j];
+      values[j][i] = int(blue(aPixels[j][i]));
+    }
+  }
+}
+
+void draw() {
+  background(255);
+  translate(width/2, height/2, 0);
+  scale(2.0);
+  
+  // Update and constrain the angle
+  angle += 0.005;
+  rotateY(angle);  
+  
+  // Display the image mass
+  for (int i = 0; i < a.height; i += 2) {
+    for (int j = 0; j < a.width; j += 2) {
+      stroke(values[j][i], 153);
+      line(j-a.width/2, i-a.height/2, -values[j][i], j-a.width/2, i-a.height/2, -values[j][i]-10);
+    }
+  }
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,90 @@
+/**
+ * Zoom. 
+ * 
+ * Move the cursor over the image to alter its position. Click and press
+ * the mouse to zoom and set the density of the matrix by typing numbers 1-5.
+ * This program displays a series of lines with their heights corresponding to 
+ * a color value read from an image. 
+ */
+
+PImage img;
+//boolean onetime = true;
+int[][] imgPixels;
+float sval = 1.0;
+float nmx, nmy;
+int res = 5;
+
+void setup() 
+{
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noFill();
+  stroke(255);
+  img = loadImage("ystone08.jpg");
+  imgPixels = new int[img.width][img.height];
+  for (int i = 0; i < img.height; i++) {
+    for (int j = 0; j < img.width; j++) {
+      imgPixels[j][i] = img.get(j, i);
+    }
+  }
+}
+
+void draw() 
+{
+  background(0);
+
+  nmx = nmx + (mouseX-nmx)/20; 
+  nmy += (mouseY-nmy)/20; 
+
+  if(mousePressed) { 
+    sval += 0.005; 
+  } 
+  else {
+    sval -= 0.01; 
+  }
+
+  sval = constrain(sval, 1.0, 2.5);
+
+  translate(width/2 + nmx * sval-100, height/2 + nmy*sval - 200, -50);
+  scale(sval);
+  rotateZ(PI/9 - sval + 1.0);
+  rotateX(PI/sval/8 - 0.125);
+  rotateY(sval/8 - 0.125);
+
+  translate(-width/2, -height/2, 0);
+
+  for (int i = 0; i < img.height; i += res) {
+    for (int j = 0; j < img.width; j += res) {
+      float rr = red(imgPixels[j][i]); 
+      float gg = green(imgPixels[j][i]);
+      float bb = blue(imgPixels[j][i]);
+      float tt = rr+gg+bb;
+      stroke(rr, gg, gg);
+      line(i, j, tt/10-20, i, j, tt/10 );
+    }
+  }
+}
+
+void keyPressed() {
+  if(key == '1') {
+    res = 1;
+  } 
+  else if (key == '2') {
+    res = 2; 
+  } 
+  else if (key == '3') {
+    res = 3;
+  } 
+  else if (key == '4') {
+    res = 4;
+  } 
+  else if (key == '5') {
+    res = 5;
+  }
+}
+
+
+
+
+
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,23 @@
+/**
+ * Bezier. 
+ * 
+ * The first two parameters for the bezier() function specify the 
+ * first point in the curve and the last two parameters specify 
+ * the last point. The middle parameters set the control points
+ * that define the shape of the curve. 
+ */
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE); 
+  stroke(255);
+  noFill();
+}
+
+void draw() {
+  background(0);
+  for (int i = 0; i < 200; i += 20) {
+    bezier(mouseX-(i/2.0), 40+i, 410, 20, 440, 300, 240-(i/16.0), 300+(i/8.0));
+  }
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,44 @@
+// ISSUES: non-interactive sketches don't show anything on screen
+
+// Robot 1: Draw from "Getting Started with Processing" 
+// by Reas & Fry. O'Reilly / Make 2010
+
+size(720, 480, P3D);
+orientation(LANDSCAPE);
+smooth();
+strokeWeight(2);
+background(204);
+ellipseMode(RADIUS);
+
+// Neck
+stroke(102);                // Set stroke to gray
+line(266, 257, 266, 162);   // Left
+line(276, 257, 276, 162);   // Middle
+line(286, 257, 286, 162);   // Right
+
+// Antennae
+line(276, 155, 246, 112);   // Small
+line(276, 155, 306, 56);    // Tall
+line(276, 155, 342, 170);   // Medium
+
+// Body
+noStroke();                 // Disable stroke
+fill(102);                  // Set fill to gray
+ellipse(264, 377, 33, 33);  // Antigravity orb 
+fill(0);                    // Set fill to black
+rect(219, 257, 90, 120);    // Main body
+fill(102);                  // Set fill to gray
+rect(219, 274, 90, 6);      // Gray stripe
+
+// Head
+fill(0);                    // Set fill to black
+ellipse(276, 155, 45, 45);  // Head
+fill(255);                  // Set fill to white
+ellipse(288, 150, 14, 14);  // Large eye
+fill(0);                    // Set fill to black
+ellipse(288, 150, 3, 3);    // Pupil
+fill(153);                  // Set fill to light gray
+ellipse(263, 148, 5, 5);    // Small eye 1
+ellipse(296, 130, 4, 4);    // Small eye 2
+ellipse(305, 162, 3, 3);    // Small eye 3
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,35 @@
+// ISSUES: non-interactive sketches don't show anything on screen
+
+/**
+ * Shape Primitives. 
+ * 
+ * The basic shape primitive functions are triangle(),
+ * rect(), quad(), ellipse(), and arc(). Squares are made
+ * with rect() and circles are made with ellipse(). Each 
+ * of these functions requires a number of parameters to 
+ * determine the shape's position and size. 
+ */
+
+size(640, 360, P3D);
+orientation(LANDSCAPE);
+background(0);
+noStroke();
+
+fill(204);
+triangle(18, 18, 18, 360, 81, 360);
+
+fill(102);
+rect(81, 81, 63, 63);
+
+fill(204);
+quad(189, 18, 216, 18, 216, 360, 144, 360);
+
+fill(255);
+ellipse(252, 144, 72, 72);
+
+fill(204);
+triangle(288, 18, 351, 360, 288, 360); 
+
+fill(255);
+arc(479, 300, 280, 280, PI, TWO_PI);
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,45 @@
+/**
+ * TRIANGLE_STRIP Mode
+ * by Ira Greenberg. 
+ * 
+ * Generate a closed ring using the vertex() function and 
+ * beginShape(TRIANGLE_STRIP) mode. The outerRad and innerRad 
+ * variables control ring's radii respectively.
+ */
+
+int x;
+int y;
+float outerRad;
+float innerRad;
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  background(204);
+  x = width/2;
+  y = height/2;
+  outerRad = min(width, height) * 0.4;
+  innerRad = outerRad * 0.6;
+}
+
+void draw() {
+  background(204);
+  
+  int pts = int(map(mouseX, 0, width, 6, 60));
+  float rot = 180.0/pts;
+  float angle = 0;
+  
+  beginShape(TRIANGLE_STRIP); 
+  for (int i = 0; i <= pts; i++) {
+    float px = x + cos(radians(angle)) * outerRad;
+    float py = y + sin(radians(angle)) * outerRad;
+    angle += rot;
+    vertex(px, py);
+    px = x + cos(radians(angle)) * innerRad;
+    py = y + sin(radians(angle)) * innerRad;
+    vertex(px, py); 
+    angle += rot;
+  }
+  endShape();
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,42 @@
+// CameraLight, by Andres Colubri
+// Simple example showing a lit rotating cube. The projection
+// is set to orthographic if the mouse is pressed.
+
+float spin = 0.0;
+
+void setup() {
+  size(400, 400, P3D);
+  
+  noStroke();
+}
+
+void draw() {
+  background(51);
+
+  lights();
+  
+  if (mousePressed) {
+    // The arguments of ortho are specified in screen coordinates, where (0,0)
+    // is the upper left corner of the screen
+    ortho(0, width, 0, height);     
+  } else {
+
+    float fov = PI/3.0; 
+    float cameraZ = (height/2.0) / tan(fov/2.0); 
+    perspective(fov, float(width)/float(height), 
+                cameraZ/2.0, cameraZ*2.0); 
+  }  
+  
+  spin += 0.01;
+  
+  pushMatrix();
+  translate(width/2, height/2, 0);
+  rotateX(PI/9);
+  rotateY(PI/5 + spin);
+  box(100);
+  popMatrix();
+}
+
+
+
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,29 @@
+/**
+ * Directional. 
+ * 
+ * Move the mouse the change the direction of the light.
+ * Directional light comes from one direction and is stronger 
+ * when hitting a surface squarely and weaker if it hits at a 
+ * a gentle angle. After hitting a surface, a directional lights 
+ * scatters in all directions. 
+ */
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+  fill(204);
+}
+
+void draw() {
+  noStroke(); 
+  background(0); 
+  float dirY = (mouseY / float(height) - 0.5) * 2;
+  float dirX = (mouseX / float(width) - 0.5) * 2;
+  directionalLight(204, 204, 204, -dirX, -dirY, -1);
+  translate(width/2 - 100, height/2, 0); 
+  sphere(80); 
+  translate(200, 0, 0); 
+  sphere(80); 
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,30 @@
+/**
+ * Lights 1. 
+ * 
+ * Uses the default lights to show a simple box. The lights() function
+ * is used to turn on the default lighting.
+ */
+ 
+float spin = 0.0;
+
+void setup() 
+{
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+}
+
+void draw() 
+{
+  background(51);
+  lights();
+  
+  spin += 0.01;
+  
+  pushMatrix();
+  translate(width/2, height/2, 0);
+  rotateX(PI/9);
+  rotateY(PI/5 + spin);
+  box(150);
+  popMatrix();
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,37 @@
+/**
+ * Lights 2 
+ * by Simon Greenwold. 
+ * 
+ * Display a box with three different kinds of lights. 
+ */
+
+void setup() 
+{
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+}
+
+void draw() 
+{
+  background(0);
+  translate(width / 2, height / 2);
+  
+  // Orange point light on the right
+  pointLight(150, 100, 0, // Color
+             200, -150, 0); // Position
+
+  // Blue directional light from the left
+  directionalLight(0, 102, 255, // Color
+                   1, 0, 0); // The x-, y-, z-axis direction
+
+  // Yellow spotlight from the front
+  spotLight(255, 255, 109, // Color
+            0, 40, 200, // Position
+            0, -0.5, -0.5, // Direction
+            PI / 2, 2); // Angle, concentration
+  
+  rotateY(map(mouseX, 0, width, 0, PI));
+  rotateX(map(mouseY, 0, height, 0, PI));
+  box(150);
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,45 @@
+/**
+ * LightsGL. 
+ * Modified from an example by Simon Greenwold. 
+ * 
+ * Display a box with three different kinds of lights. 
+ */
+
+void setup() 
+{
+  size(screenWidth, screenHeight, P3D);  
+  noStroke();
+}
+
+void draw() 
+{
+  defineLights();
+  background(0);
+  
+  for (int x = 0; x <= width; x += 100) {
+    for (int y = 0; y <= height; y += 100) {
+      pushMatrix();
+      translate(x, y);
+      rotateY(map(mouseX, 0, width, 0, PI));
+      rotateX(map(mouseY, 0, height, 0, PI));
+      box(90);
+      popMatrix();
+    }
+  }
+}
+
+void defineLights() {
+  // Orange point light on the right
+  pointLight(150, 100, 0,   // Color
+             200, -150, 0); // Position
+
+  // Blue directional light from the left
+  directionalLight(0, 102, 255, // Color
+                   1, 0, 0);    // The x-, y-, z-axis direction
+
+  // Yellow spotlight from the front
+  spotLight(255, 255, 109,  // Color
+            0, 40, 200,     // Position
+            0, -0.5, -0.5,  // Direction
+            PI / 2, 2);     // Angle, concentration
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,26 @@
+/**
+ * Reflection 
+ * by Simon Greenwold. 
+ * 
+ * Vary the specular reflection component of a material
+ * with the horizontal position of the mouse. 
+ */
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+  colorMode(RGB, 1);
+  fill(0.4);
+}
+
+void draw() {
+  background(0);
+  translate(width / 2, height / 2);
+  // Set the specular color of lights that follow
+  lightSpecular(1, 1, 1);
+  directionalLight(0.8, 0.8, 0.8, 0, 0, -1);
+  float s = mouseX / float(width);
+  specular(s, s, s);
+  sphere(120);
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,35 @@
+/**
+ * Spot. 
+ * 
+ * Move the mouse the change the position and concentation
+ * of a blue spot light. 
+ */
+ 
+int concentration = 600; // Try values 1 -> 10000
+
+void setup() 
+{
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  noStroke();
+  fill(204);
+  sphereDetail(60);
+}
+
+void draw() 
+{
+  background(0); 
+  
+  // Light the bottom of the sphere
+  directionalLight(51, 102, 126, 0, -1, 0);
+  
+  // Orange light on the upper-right of the sphere
+  spotLight(204, 153, 0, 360, 160, 600, 0, 0, -1, PI/2, 600); 
+  
+  // Moving spotlight that follows the mouse
+  spotLight(102, 153, 204, 360, mouseY, 600, 0, 0, -1, PI/2, 600); 
+  
+  translate(width/2, height/2, 0); 
+  sphere(120); 
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,63 @@
+/**
+ * Cubic Grid 
+ * by Ira Greenberg. 
+ * 
+ * 3D translucent colored grid uses nested pushMatrix()
+ * and popMatrix() functions. 
+ */
+
+float boxSize = 40;
+float margin = boxSize*2;
+float depth = 400;
+color boxFill;
+
+int fcount, lastm;
+float frate;
+int fint = 3;
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  frameRate(60);
+  noStroke();
+}
+
+void draw() {
+  background(255);
+  
+  hint(DISABLE_DEPTH_TEST);
+    
+  // Center and spin grid
+  pushMatrix();
+  translate(width/2, height/2, -depth);
+  rotateY(frameCount * 0.01);
+  rotateX(frameCount * 0.01);
+
+  // Build grid using multiple translations 
+  for (float i =- depth/2+margin; i <= depth/2-margin; i += boxSize){
+    for (float j =- height+margin; j <= height-margin; j += boxSize){
+      for (float k =- width+margin; k <= width-margin; k += boxSize){
+        // Base fill color on counter values, abs function 
+        // ensures values stay within legal range
+        boxFill = color(abs(i), abs(j), abs(k), 50);
+        pushMatrix();
+        translate(k, j, i);
+        fill(boxFill);
+        box(boxSize, boxSize, boxSize);
+        popMatrix();
+      }
+    }
+  }
+  popMatrix();
+  
+  fcount += 1;
+  int m = millis();
+  if (m - lastm > 1000 * fint) {
+    frate = float(fcount) / fint;
+    fcount = 0;
+    lastm = m;
+    println("fps: " + frate); 
+  }
+  fill(0);
+  text("fps: " + frate, 10, 20);  
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,112 @@
+float boxSize = 40;
+float margin = boxSize*2;
+float depth = 400;
+color boxFill;
+
+PShape grid;
+
+int fcount, lastm;
+float frate;
+int fint = 3;
+
+void setup() {
+  size(640, 360, P3D);
+  orientation(LANDSCAPE);
+  frameRate(60);
+  noStroke();
+  
+  grid = createShape(PShape.GROUP);
+    
+  // Build grid using multiple translations 
+  for (float i =- depth/2+margin; i <= depth/2-margin; i += boxSize){
+    for (float j =- height+margin; j <= height-margin; j += boxSize){
+      for (float k =- width+margin; k <= width-margin; k += boxSize){
+        // Base fill color on counter values, abs function 
+        // ensures values stay within legal range
+        boxFill = color(abs(i), abs(j), abs(k), 50);
+        
+        PShape cube = createShape(QUADS);
+        cube.noStroke();
+        cube.fill(boxFill);
+        
+        float w = boxSize;
+        float h = boxSize;
+        float d = boxSize; 
+        float shiftX = k; 
+        float shiftY = j; 
+        float shiftZ = i;
+        
+        // Front face
+        cube.normal(0, 0, 1);
+        cube.vertex(-w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, +h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(-w/2 + shiftX, +h/2 + shiftY, -d/2 + shiftZ); 
+
+        // Back face
+        cube.normal(0, 0, -1);
+        cube.vertex(-w/2 + shiftX, -h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, -h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, +h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(-w/2 + shiftX, +h/2 + shiftY, +d/2 + shiftZ);
+
+        // Left face
+        cube.normal(1, 0, 0);
+        cube.vertex(-w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(-w/2 + shiftX, -h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(-w/2 + shiftX, +h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(-w/2 + shiftX, +h/2 + shiftY, -d/2 + shiftZ); 
+
+        // Right face
+        cube.normal(-1, 0, 0);
+        cube.vertex(+w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, -h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, +h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, +h/2 + shiftY, -d/2 + shiftZ); 
+
+        // Top face
+        cube.normal(0, 1, 0);
+        cube.vertex(-w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, -h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(-w/2 + shiftX, -h/2 + shiftY, +d/2 + shiftZ); 
+
+        // Bottom face
+        cube.normal(0, -1, 0);
+        cube.vertex(-w/2 + shiftX, +h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, +h/2 + shiftY, -d/2 + shiftZ); 
+        cube.vertex(+w/2 + shiftX, +h/2 + shiftY, +d/2 + shiftZ); 
+        cube.vertex(-w/2 + shiftX, +h/2 + shiftY, +d/2 + shiftZ);  
+            
+        cube.end();
+        grid.addChild(cube);
+      }
+    }
+  }
+}
+
+void draw() {
+  background(255);
+  
+  hint(DISABLE_DEPTH_TEST);
+  
+  // Center and spin grid
+  pushMatrix();
+  translate(width/2, height/2, -depth);
+  rotateY(frameCount * 0.01);
+  rotateX(frameCount * 0.01);
+
+  shape(grid);
+  popMatrix();
+  
+  fcount += 1;
+  int m = millis();
+  if (m - lastm > 1000 * fint) {
+    frate = float(fcount) / fint;
+    fcount = 0;
+    lastm = m;
+    println("fps: " + frate); 
+  } 
+  fill(0);
+  text("fps: " + frate, 10, 20);
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,119 @@
+PImage sprite;  
+
+int npartTotal = 1000;
+int npartPerFrame = 15;
+float speed = 1.0;
+float gravity = 0.05;
+float partSize = 20;
+
+int partLifetime;
+PVector positions[];
+PVector velocities[];
+int lifetimes[];  
+
+int fcount, lastm;
+float frate;
+int fint = 3;
+
+void setup() {
+  size(640, 480, P3D);
+  orientation(LANDSCAPE);
+  frameRate(60);
+  
+  sprite = loadImage("sprite.png");
+
+  partLifetime = npartTotal / npartPerFrame;
+  initPositions();
+  initVelocities();
+  initLifetimes(); 
+
+  // Writing to the depth buffer is disabled to avoid rendering
+  // artifacts due to the fact that the particles are semi-transparent
+  // but not z-sorted.
+  hint(DISABLE_DEPTH_MASK);
+  
+  // Testing some hints
+  //hint(DISABLE_TRANSFORM_CACHE);
+  //hint(ENABLE_ACCURATE_2D);
+} 
+
+void draw () {
+  background(0);
+
+  for (int n = 0; n < npartTotal; n++) {
+    lifetimes[n]++;
+    if (lifetimes[n] == partLifetime) {
+      lifetimes[n] = 0;
+    }      
+
+    if (0 <= lifetimes[n]) {      
+      float opacity = 1.0 - float(lifetimes[n]) / partLifetime;
+            
+      if (lifetimes[n] == 0) {
+        // Re-spawn dead particle
+        positions[n].x = mouseX;
+        positions[n].y = mouseY;
+        
+        float angle = random(0, TWO_PI);
+        float s = random(0.5 * speed, 0.5 * speed);
+        velocities[n].x = s * cos(angle);
+        velocities[n].y = s * sin(angle);
+      } else {
+        positions[n].x += velocities[n].x;
+        positions[n].y += velocities[n].y;
+        
+        velocities[n].y += gravity;
+      }
+      drawParticle(positions[n], opacity);
+    }
+  }
+  
+  fcount += 1;
+  int m = millis();
+  if (m - lastm > 1000 * fint) {
+    frate = float(fcount) / fint;
+    fcount = 0;
+    lastm = m;
+    println("fps: " + frate); 
+  } 
+}
+
+void drawParticle(PVector center, float opacity) {
+  beginShape(QUAD);
+  noStroke();
+  tint(255, opacity * 255);
+  texture(sprite);
+  normal(0, 0, 1);
+  vertex(center.x - partSize/2, center.y - partSize/2, 0, 0);
+  vertex(center.x + partSize/2, center.y - partSize/2, sprite.width, 0);
+  vertex(center.x + partSize/2, center.y + partSize/2, sprite.width, sprite.height);
+  vertex(center.x - partSize/2, center.y + partSize/2, 0, sprite.height);                
+  endShape();  
+}
+
+void initPositions() {
+  positions = new PVector[npartTotal];
+  for (int n = 0; n < positions.length; n++) {
+    positions[n] = new PVector();
+  }  
+}
+
+void initVelocities() {
+  velocities = new PVector[npartTotal];
+  for (int n = 0; n < velocities.length; n++) {
+    velocities[n] = new PVector();
+  }
+}
+
+void initLifetimes() {
+  // Initializing particles with negative lifetimes so they are added
+  // progressively into the screen during the first frames of the sketch   
+  lifetimes = new int[npartTotal];
+  int t = -1;
+  for (int n = 0; n < lifetimes.length; n++) {    
+    if (n % npartPerFrame == 0) {
+      t++;
+    }
+    lifetimes[n] = -t;
+  }
+} 
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,110 @@
+PShape particles;
+PImage sprite;  
+
+int npartTotal = 1000;
+int npartPerFrame = 15;
+float speed = 1.0;
+float gravity = 0.05;
+float partSize = 20;
+
+int partLifetime;
+PVector velocities[];
+int lifetimes[];
+
+int fcount, lastm;
+float frate;
+int fint = 3;
+
+void setup() {
+  size(640, 480, P3D);
+  orientation(LANDSCAPE);
+  frameRate(60);
+
+  particles = createShape(PShape.GROUP);
+  sprite = loadImage("sprite.png");
+
+  for (int n = 0; n < npartTotal; n++) {
+    PShape part = createShape(QUAD);
+    part.noStroke();
+    part.texture(sprite);
+    part.normal(0, 0, 1);
+    part.vertex(-partSize/2, -partSize/2, 0, 0);
+    part.vertex(+partSize/2, -partSize/2, sprite.width, 0);
+    part.vertex(+partSize/2, +partSize/2, sprite.width, sprite.height);
+    part.vertex(-partSize/2, +partSize/2, 0, sprite.height);
+    part.end();    
+    particles.addChild(part);
+  }
+
+  partLifetime = npartTotal / npartPerFrame;
+  initVelocities();
+  initLifetimes(); 
+
+  // Writing to the depth buffer is disabled to avoid rendering
+  // artifacts due to the fact that the particles are semi-transparent
+  // but not z-sorted.
+  hint(DISABLE_DEPTH_MASK);
+} 
+
+void draw () {
+  background(0);
+
+  for (int n = 0; n < particles.getChildCount(); n++) {
+    PShape part = particles.getChild(n);
+
+    lifetimes[n]++;
+    if (lifetimes[n] == partLifetime) {
+      lifetimes[n] = 0;
+    }      
+
+    if (0 <= lifetimes[n]) {
+      float opacity = 1.0 - float(lifetimes[n]) / partLifetime;
+      part.tint(255, opacity * 255);
+      
+      if (lifetimes[n] == 0) {
+        // Re-spawn dead particle
+        part.center(mouseX, mouseY);
+        float angle = random(0, TWO_PI);
+        float s = random(0.5 * speed, 0.5 * speed);
+        velocities[n].x = s * cos(angle);
+        velocities[n].y = s * sin(angle);
+      } else {
+        part.translate(velocities[n].x, velocities[n].y);
+        velocities[n].y += gravity;
+      }
+    } else {
+      part.tint(0, 0);
+    }
+  }
+
+  shape(particles);
+  
+  fcount += 1;
+  int m = millis();
+  if (m - lastm > 1000 * fint) {
+    frate = float(fcount) / fint;
+    fcount = 0;
+    lastm = m;
+    println("fps: " + frate); 
+  } 
+}
+
+void initVelocities() {
+  velocities = new PVector[npartTotal];
+  for (int n = 0; n < velocities.length; n++) {
+    velocities[n] = new PVector();
+  }
+}
+
+void initLifetimes() {
+  // Initializing particles with negative lifetimes so they are added
+  // progressively into the screen during the first frames of the sketch   
+  lifetimes = new int[npartTotal];
+  int t = -1;
+  for (int n = 0; n < lifetimes.length; n++) {    
+    if (n % npartPerFrame == 0) {
+      t++;
+    }
+    lifetimes[n] = -t;
+  }
+} 
@@ -0,0 +1 @@
+mode=Android
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,89 @@
+/**
+ * Esfera
+ * by David Pena.  
+ * 
+ * Distribucion aleatoria uniforme sobre la superficie de una esfera. 
+ */
+
+int cuantos = 1600;
+pelo[] lista ;
+float[] z = new float[cuantos]; 
+float[] phi = new float[cuantos]; 
+float[] largos = new float[cuantos]; 
+float radio = 200;
+float rx = 0;
+float ry =0;
+
+void setup() {
+  size(screenWidth, screenHeight, P3D);
+  radio = height/3.5;
+  
+  lista = new pelo[cuantos];
+  for (int i=0; i<cuantos; i++){
+    lista[i] = new pelo();
+  }
+  noiseDetail(3);
+
+}
+
+void draw() {
+  background(0);
+  translate(width/2,height/2);
+
+  float rxp = ((mouseX-(width/2))*0.005);
+  float ryp = ((mouseY-(height/2))*0.005);
+  rx = (rx*0.9)+(rxp*0.1);
+  ry = (ry*0.9)+(ryp*0.1);
+  rotateY(rx);
+  rotateX(ry);
+  fill(0);
+  noStroke();
+  sphere(radio);
+
+  for (int i=0;i<cuantos;i++){
+    lista[i].dibujar();
+
+  }
+  if (frameCount % 10 == 0) {
+    println(frameRate);
+  }  
+}
+
+
+class pelo
+{
+  float z = random(-radio,radio);
+  float phi = random(TWO_PI);
+  float largo = random(1.15,1.2);
+  float theta = asin(z/radio);
+
+    void dibujar(){
+
+    float off = (noise(millis() * 0.0005,sin(phi))-0.5) * 0.3;
+    float offb = (noise(millis() * 0.0007,sin(z) * 0.01)-0.5) * 0.3;
+
+    float thetaff = theta+off;
+    float phff = phi+offb;
+    float x = radio * cos(theta) * cos(phi);
+    float y = radio * cos(theta) * sin(phi);
+    float z = radio * sin(theta);
+    float msx= screenX(x,y,z);
+    float msy= screenY(x,y,z);
+
+    float xo = radio * cos(thetaff) * cos(phff);
+    float yo = radio * cos(thetaff) * sin(phff);
+    float zo = radio * sin(thetaff);
+
+    float xb = xo * largo;
+    float yb = yo * largo;
+    float zb = zo * largo;
+    
+    strokeWeight(1);
+    beginShape(LINES);
+    stroke(0);
+    vertex(x,y,z);
+    stroke(200,150);
+    vertex(xb,yb,zb);
+    endShape();
+  }
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,19 @@
+public void setup() {
+  size(400, 400, P3D);  
+}
+  
+public void draw() {    
+  background(255);
+  stroke(0, 10);
+  for (int i = 0; i < 5000; i++) {
+    float x0 = random(width);
+    float y0 = random(height);
+    float z0 = random(-100, 100);
+    float x1 = random(width);
+    float y1 = random(height);
+    float z1 = random(-100, 100);    
+    
+    line(x0, y0, z0, x1, y1, z1);
+  }
+  if (frameCount % 10 == 0) println(frameRate);
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,18 @@
+// ISSUES: nothing is visible on the screen
+
+public void setup() {
+  size(400, 400, P3D);
+  
+  noStroke();
+  fill(0, 1);  
+}
+  
+public void draw() {    
+  background(255);
+  for (int i = 0; i < 5000; i++) {
+    float x = random(width);
+    float y = random(height);
+    rect(x, y, 30, 30);
+  }
+  if (frameCount % 10 == 0) println(frameRate);
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,65 @@
+PImage sprite;  
+
+int npartTotal = 5000;
+float partSize = 20;
+
+PVector positions[];
+
+int fcount, lastm;
+float frate;
+int fint = 3;
+
+void setup() {
+  size(screenWidth, screenHeight, P3D);
+  frameRate(60);
+  
+  sprite = loadImage("sprite.png");
+
+  initPositions();
+
+  // Writing to the depth buffer is disabled to avoid rendering
+  // artifacts due to the fact that the particles are semi-transparent
+  // but not z-sorted.
+  hint(DISABLE_DEPTH_MASK);
+} 
+
+void draw () {
+  background(0);
+
+  translate(width/2, height/2);
+  rotateY(frameCount * 0.01);
+ 
+  for (int n = 0; n < npartTotal; n++) {
+    drawParticle(positions[n]);
+  }
+  
+  fcount += 1;
+  int m = millis();
+  if (m - lastm > 1000 * fint) {
+    frate = float(fcount) / fint;
+    fcount = 0;
+    lastm = m;
+    println("fps: " + frate); 
+  }  
+}
+
+void drawParticle(PVector center) {
+  beginShape(QUAD);
+  noStroke();
+  tint(255);
+  texture(sprite);
+  normal(0, 0, 1);
+  vertex(center.x - partSize/2, center.y - partSize/2, center.z, 0, 0);
+  vertex(center.x + partSize/2, center.y - partSize/2, center.z, sprite.width, 0);
+  vertex(center.x + partSize/2, center.y + partSize/2, center.z, sprite.width, sprite.height);
+  vertex(center.x - partSize/2, center.y + partSize/2, center.z, 0, sprite.height);                
+  endShape();  
+}
+
+void initPositions() {
+  positions = new PVector[npartTotal];
+  for (int n = 0; n < positions.length; n++) {
+    positions[n] = new PVector(random(-500, +500), random(-500, +500), random(-500, +500));
+  }  
+}
+
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,59 @@
+PShape particles;
+PImage sprite;  
+
+int npartTotal = 5000;
+float partSize = 20;
+
+int fcount, lastm;
+float frate;
+int fint = 3;
+
+void setup() {
+  size(screenWidth, screenHeight, P3D);
+  frameRate(60);
+
+  particles = createShape(PShape.GROUP);
+  sprite = loadImage("sprite.png");
+
+  for (int n = 0; n < npartTotal; n++) {
+    float cx = random(-500, +500);
+    float cy = random(-500, +500); 
+    float cz = random(-500, +500);
+    
+    PShape part = createShape(QUAD);
+    part.noStroke();
+    part.tint(255);
+    part.texture(sprite);
+    part.normal(0, 0, 1);
+    part.vertex(cx - partSize/2, cy - partSize/2, cz, 0, 0);
+    part.vertex(cx + partSize/2, cy - partSize/2, cz, sprite.width, 0);
+    part.vertex(cx + partSize/2, cy + partSize/2, cz, sprite.width, sprite.height);
+    part.vertex(cx - partSize/2, cy + partSize/2, cz, 0, sprite.height);    
+    part.end();    
+    particles.addChild(part);
+  }
+
+  // Writing to the depth buffer is disabled to avoid rendering
+  // artifacts due to the fact that the particles are semi-transparent
+  // but not z-sorted.
+  hint(DISABLE_DEPTH_MASK);
+} 
+
+void draw () {
+  background(0);
+
+  translate(width/2, height/2);
+  rotateY(frameCount * 0.01);
+
+  shape(particles);
+  
+  fcount += 1;
+  int m = millis();
+  if (m - lastm > 1000 * fint) {
+    frate = float(fcount) / fint;
+    fcount = 0;
+    lastm = m;
+    println("fps: " + frate); 
+  }  
+}
+
@@ -0,0 +1 @@
+mode=Android
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,14 @@
+public void setup() {
+  size(400, 400, P3D);
+  fill(0);
+}
+  
+public void draw() {    
+  background(255);
+  for (int i = 0; i < 1000; i++) {
+    float x = random(width);
+    float y = random(height);
+    text("HELLO", x, y);
+  }
+  if (frameCount % 10 == 0) println(frameRate);
+}
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
+          package="" 
+          android:versionCode="1" 
+          android:versionName="1.0">
+  <uses-sdk android:minSdkVersion="8" />
+  <application android:label=""
+               android:icon="@drawable/icon"
+               android:debuggable="true">
+    <activity android:name="">
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+  </application>
+</manifest>
@@ -0,0 +1,24 @@
+// ISSUES: non-interactive sketches don't show anything on screen,
+//         and polygon tessellation still not implemented.
+
+size(100, 100, P3D);
+
+beginShape(POLYGON);
+fill(0, 255, 0, 255);
+stroke(0, 0, 255, 255);
+strokeWeight(5);
+strokeJoin(ROUND);
+beginContour();
+vertex(10, 10);
+vertex(10, 90);
+vertex(90, 90);
+vertex(90, 10);  
+endContour();
+beginContour();
+vertex(40, 40);
+vertex(70, 40);
+vertex(70, 70);
+vertex(40, 70);
+endContour();
+endShape(CLOSE);
+
--- a/Show More
+++ b/Show More