ColoredPerlinNoise.pde

// the "resolution" of the noise
float inc = 0.008;

// "rate of change" for the noise
float zInc = 0.1;

// min/max values for noise
float hueMin =    0;      // hue
float hueMax =    50;
float satMin =    100;    // saturation
float satMax =    255;
float brightMin = 200;    // brightness
float brightMax = 220;

// keep track of x/y noise position
float hxOff, hyOff, sxOff, syOff, bxOff, byOff;
float zOff = 0;
float h, s, b;

// 'd' key turns on debug
boolean debug = false;


void setup() {
  size(1920,1080);
  colorMode(HSB, 255);
  noiseDetail(4, 0.01);
}


void draw() {
  loadPixels();
  hxOff = sxOff = bxOff = 0;

  for (int x=0; x<width; x++) {
    hxOff += inc;
    sxOff += inc;
    bxOff += inc;

    hyOff = syOff = byOff = 0;
    for (int y=0; y<height; y++) {
      hyOff += inc;
      syOff += inc;
      byOff += inc;

      h = noise(hxOff, hyOff, zOff) * 255;
      h = map(h, 0,255, hueMin, hueMax);
      s = noise(sxOff, syOff, zOff) * 255;
      s = map(s, 0,255, satMin, satMax);
      b = noise(bxOff, byOff, zOff) * 255;
      b = map(b, 0,255, brightMin, brightMax);
      pixels[x + y*width] = color(h, s, b);
    }
  }
  updatePixels();
  zOff += zInc;

  // if debug mode enabled
  if (debug) {
    stroke(255);
    line(width/2,height/2, 80,height-80);
    fill(255);
    noStroke();
    ellipse(width/2,height/2, 8,8);
    
    h = hue(pixels[pixels.length/2]);
    s = saturation(pixels[pixels.length/2]);
    b = brightness(pixels[pixels.length/2]);
    text(int(h) + ", " + int(s) + ", " + int(b), 30, height-50);
  }
  
  println(frameCount);
  save("frames/" + nf(frameCount, 4) + ".jpg");
  if (frameCount > (1 * 60 * 24)) exit();
}


// 'd' key turns on debug mode
// shows value for center pixel :)
void keyPressed() {
  if (key == 'd') debug = !debug;
}