rectify<br>

// From one of Tomasz Sulej's (always interesting) tutorials:

// https://generateme.wordpress.com/

// No interaction, takes about 15 seconds to render.

// boolean, random, TWO_PI, sin, cos, noise, vertex

​

float yoff = random(1.0), incr = 0, r;

boolean squareOff;

int count = 0;

​

void setup() {

  size(700, 650);

  noFill();

  background(20);

}

​

void draw() {

  count++;

  if (count < 700) squareOff = false;

  else squareOff = true;

  if (count > 820) {

    noLoop();

  }

  drawShape();

}

​

​

void drawShape() {

  if (squareOff) translate(width/2-40, height/2-40);

  else translate(width/2, height/2);

  incr += random(TWO_PI);

  stroke(#87FC78, random(5.0, 20.0));

  strokeWeight(random(1.0));

  float xoff = random(1.0);

  beginShape();

  for (float ang = incr; ang < TWO_PI+incr; ang += random (TWO_PI/200.0)) {

    // crude attempts to tame noise() in Javascript mode

    if (!squareOff)  r = map(noise(xoff, yoff*5.0), 0, 1, -100, 500);

    else  r = map(noise(xoff, yoff*5.0), 0, 1, -100, 600);

    float x = r * cos(ang);

    float y = r * sin(ang);

​

    if (squareOff) { 

      float sx = x % 40;

      float sy = y % 40;

      int xx = (int)(x/40.0);

      int yy = (int)(y/40.0);

      x = xx*40.0 + (40.0-sx);

      y = yy*40.0 + (40.0-sy);

    }

    vertex(x, y);

    xoff += random(0.01, 0.05);

  }

  yoff += random(0.01, 0.05);

  endShape(CLOSE);

}

​

​

​