Tendril Circle

var t = 0

​

function setup() {

  createCanvas(800, 800); 

  background(0);  

} 

​

function draw() {

  t += deltaTime

  let theta = 0.5 * t

  let r = 20

  var c = createVector(width/2,height/2) 

  var v = createVector(r * cos(theta),r *sin(theta))

  c.add(v)

  let s = 2

  var v2 = createVector(random(2*s) -s,random(2*s) -s)

  v.add(v2)

  tendril(c,v,random(1,5),0.1)

}

​

function tendril(p,v,thickness, alpha){

  var newP = p5.Vector.add(p,v);

  var newV = v.rotate(random(-0.1,0.1));

  var newThickness = thickness*0.995;

  var newAlpha = alpha*0.95;

  strokeWeight(thickness)

  noFill();

  stroke(255,5);

  line(p.x,p.y,newP.x,newP.y);

  if(thickness>1.0){

    tendril(newP,newV,newThickness,newAlpha)

  }

}