moving the OpenGL examples to the core

java/examples/OpenGL/Lights/CameraLight/CameraLight.pde

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+// 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) {
+    ortho(-width/2, width/2, -height/2, height/2);     
+  } 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();
+}
+
+
+
+

java/examples/OpenGL/Lights/Directional/Directional.pde

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+/**
+ * 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);
+  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); 
+}
+

java/examples/OpenGL/Lights/Lights1/Lights1.pde

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+/**
+ * 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);
+  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();
+}

java/examples/OpenGL/Lights/Lights2/Lights2.pde

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+/**
+ * Lights 2 
+ * by Simon Greenwold. 
+ * 
+ * Display a box with three different kinds of lights. 
+ */
+
+void setup() 
+{
+  size(640, 360, P3D);
+  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);
+}

java/examples/OpenGL/Lights/LightsGL/LightsGL.pde

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+/**
+ * LightsGL. 
+ * Modified from an example by Simon Greenwold. 
+ * 
+ * Display a box with three different kinds of lights. 
+ */
+
+void setup() 
+{
+  size(1024, 768, 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
+}

java/examples/OpenGL/Lights/Reflection/Reflection.pde

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+/**
+ * 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);
+  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);
+}

java/examples/OpenGL/Lights/Spot/Spot.pde

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+/**
+ * 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(200, 200, P3D);
+  size(640, 360, P3D);
+  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); 
+}
+