let y = 0.1;

let z = 0.1;

​

// let a = 0.75;

// let b = 0.45;

​

let points = new Array();

​

​

function setup() {

  createCanvas(windowWidth, windowHeight, WEBGL);

}

​

function draw() {

  background(0);

​

  let dt = 0.01;

  let dx = y * dt;

  let dy = (-x + y * z) * dt;

  let dz = (1 - (y * y)) * dt;

  x = x + dx;

  y = y + dy;

  z = z + dz;

​

  points.push(new p5.Vector(x, y, z));

  let camX = map(mouseX, 0, width, -200, 200);

  let camY = map(mouseY, 0, height, -200, 200);

  camera(camX, camY, (height / 5.0) / tan(PI * 30.0 / 180.0), 0, 0, 0, 0, 3, 0);

  scale(40);

  stroke(225, 80);

  strokeWeight(1);

  noFill();

​

  beginShape();

  for (let v of points) {

    vertex(v.x, v.y, v.z);

    // console.log(x, y, z);

  }

  endShape();

}