let yoff = 0.0;

​

function setup() {

  createCanvas(400, 400);

  let x = random(width);

  let y = random(height);

  let points = [];

}

​

​

function draw() {

  // background(220);

  drawingContext.shadowOffsetX = 5;

  drawingContext.shadowOffsetY = 5;

  drawingContext.shadowBlur = 10;

  drawingContext.shadowColor = 'black';

  show();

}

​

  function show(){

    xoff = xoff + 0.005;

    yoff = yoff + 0.005;

    noiseSeed(1);

    this.x = noise(xoff, yoff) * width * 3;

    if(this.x > width){

      this.x = 0 + (this.x - width);

    }

    noiseSeed(2);

    this.y = noise(xoff, yoff) * height * 2.5;

    if(this.y > height){

      this.y = 0 + (this.y - height);

    }

    noiseSeed(3);

    this.r = noise(xoff, yoff) * 255 * 2.5;

    if(this.r > 255){

      this.r = 0 + (this.r - 255);

    }

    if(this.r < 0) {

      this.r = 255;

    }    

    noiseSeed(4);

    this.g = noise(xoff, yoff) * 255 + 100;

    noiseSeed(5);

    this.b = noise(xoff, yoff) * 255 + 100;

    this.s = noise(xoff, yoff) * 40;

    colorMode(HSB, 255);

    stroke(this.r, this.g, this.b);

    strokeWeight(this.s);

    point(this.x, this.y);

  }