From f28f0521fdffd8ad65a333a22db46a510175b116 Mon Sep 17 00:00:00 2001
From: codeanticode <andres.colubri@gmail.com>
Date: Mon, 28 Feb 2011 05:08:08 +0000
Subject: [PATCH] Added CameraLight example

---
 .../examples/CameraLight/CameraLight.pde      | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 java/libraries/opengl2/examples/CameraLight/CameraLight.pde

diff --git a/java/libraries/opengl2/examples/CameraLight/CameraLight.pde b/java/libraries/opengl2/examples/CameraLight/CameraLight.pde
new file mode 100644
index 000000000..10d201f8b
--- /dev/null
+++ b/java/libraries/opengl2/examples/CameraLight/CameraLight.pde
@@ -0,0 +1,44 @@
+// CameraLight, by Andres Colubri
+// Simple example showing a lit rotating cube. The projection
+// is set to orthographic if the mouse is pressed.
+
+import processing.opengl2.*;
+
+float spin = 0.0;
+
+void setup() {
+  size(400, 400, OPENGL2);
+  
+  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();
+}
+
+
+
+