moving the OpenGL examples to the core

java/examples/OpenGL/Transform/Bird/Bird.pde

@@ -0,0 +1,63 @@
+/**
+ * Simple 3D Bird 
+ * by Ira Greenberg.  
+ * 
+ * Using a box and 2 rects to simulate a flying bird. 
+ * Trig functions handle the flapping and sinuous movement.
+ */
+
+float ang = 0, ang2 = 0, ang3 = 0, ang4 = 0;
+float px = 0, py = 0, pz = 0;
+float flapSpeed = 0.2;
+
+void setup(){
+  size(640, 360, P3D);  
+  noStroke();
+}
+
+void draw(){
+  background(0);
+  lights();
+
+  // Flight
+  px = sin(radians(ang3)) * 170;
+  py = cos(radians(ang3)) * 300;
+  pz = sin(radians(ang4)) * 500;
+  translate(width/2 + px, height/2 + py, -700+pz);
+  rotateX(sin(radians(ang2)) * 120);
+  rotateY(sin(radians(ang2)) * 50);
+  rotateZ(sin(radians(ang2)) * 65);
+  
+  // Body
+  fill(153);
+  box(20, 100, 20);
+
+  
+  // Left wing
+  fill(204);
+  pushMatrix();
+  rotateY(sin(radians(ang)) * -20);
+  rect(-75, -50, 75, 100);
+  popMatrix();
+
+  // Right wing
+  pushMatrix();
+  rotateY(sin(radians(ang)) * 20);
+  rect(0, -50, 75, 100);
+  popMatrix();
+
+  // Wing flap
+  ang += flapSpeed;
+  if (ang > 3) {
+    flapSpeed *= -1;
+  } 
+  if (ang < -3) {
+    flapSpeed *= -1;
+  }
+
+  // Increment angles
+  ang2 += 0.01;
+  ang3 += 2.0;
+  ang4 += 0.75;
+}
+