float increment = 0.008f;
float zoff = 0.00f;
float zincrement = 0.0004f;

color c;


void setup() {
  size(200,200);
  frameRate(30);
  smooth();

}


void draw() {

  //background(100);
  loadPixels();

  float xoff = 0.0f;
  
  noiseDetail(5,0.65);

  for (int x = 0; x < width/2; x++) {

    xoff += increment;
    float yoff = 0.0f;

    for (int y = 0; y < height; y++) {

      yoff += increment;
      float bright = noise(xoff,yoff,zoff);
      
      if (bright < 0.4) {
        c = color(50);
      }
      else if (bright < 0.7) {
        c = color(255);
      } 
      else if (bright < 0.75) {
        c = color(255,0,0);
      }
      else {
        c = color(50);
      }

      pixels[x+y*(width)] = c;
      pixels[(width-1-x)+(y*width)] = c;
      
    }
  }
  
  updatePixels();
  filter(BLUR, 0.8);
  
  zoff += zincrement;
  
}