java/examples/3D/Lights/Directional/applet/Directional.java

@@ -0,0 +1,48 @@
+import processing.core.*; 
+
+import java.applet.*; 
+import java.awt.*; 
+import java.awt.image.*; 
+import java.awt.event.*; 
+import java.io.*; 
+import java.net.*; 
+import java.text.*; 
+import java.util.*; 
+import java.util.zip.*; 
+import java.util.regex.*; 
+
+public class Directional extends PApplet {
+
+/**
+ * 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. 
+ */
+
+public void setup() {
+  size(640, 360, P3D);
+  noStroke();
+  fill(204);
+}
+
+public void draw() {
+  noStroke(); 
+  background(0); 
+  float dirY = (mouseY / PApplet.parseFloat(height) - 0.5f) * 2;
+  float dirX = (mouseX / PApplet.parseFloat(width) - 0.5f) * 2;
+  directionalLight(204, 204, 204, -dirX, -dirY, -1); 
+  translate(width/2 - 100, height/2, 0); 
+  sphere(80); 
+  translate(200, 0, 0); 
+  sphere(80); 
+}
+
+
+  static public void main(String args[]) {
+    PApplet.main(new String[] { "Directional" });
+  }
+}