java/examples/Basics/Math/Noise2D/applet/Noise2D.java

@@ -0,0 +1,67 @@
+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 Noise2D extends PApplet {
+
+/**
+ * Noise2D 
+ * by Daniel Shiffman.  
+ * 
+ * Using 2D noise to create simple texture. 
+ */
+ 
+float increment = 0.02f;
+
+public void setup() {
+  size(200,200);
+  noLoop();
+}
+
+public void draw() {
+  background(0);
+  
+  // Optional: adjust noise detail here
+  // noiseDetail(8,0.65f);
+  
+  loadPixels();
+
+  float xoff = 0.0f; // Start xoff at 0
+  
+  // For every x,y coordinate in a 2D space, calculate a noise value and produce a brightness value
+  for (int x = 0; x < width; x++) {
+    xoff += increment;   // Increment xoff 
+    float yoff = 0.0f;   // For every xoff, start yoff at 0
+    for (int y = 0; y < height; y++) {
+      yoff += increment; // Increment yoff
+      
+      // Calculate noise and scale by 255
+      float bright = noise(xoff,yoff)*255;
+
+      // Try using this line instead
+      //float bright = random(0,255);
+      
+      // Set each pixel onscreen to a grayscale value
+      pixels[x+y*width] = color(bright);
+    }
+  }
+  
+  updatePixels();
+}
+
+
+
+
+  static public void main(String args[]) {
+    PApplet.main(new String[] { "Noise2D" });
+  }
+}