Number 31, 1905 by Jackson Pollock

// By Laura Krok aka la-krok

​

let colors;

let maxFrames;

​

function setup() {

  createCanvas(1240, 1748);

  //frameRate(15);

  //noLoop();

  colors = ["#32312E", "#C7AE82", "#F5F2E3", "#795330", "#4D4940", "#E2DDCB", "#A37D52", "#B9371A", "#77A8B5", "#3D5A8C", "#0D0806", "#DFB23D", "#512E14", "#4E4D4D", "#231C14"];

  let nColors = floor(random(5, 10));

  for (let i = 0; i < colors.length - nColors; i++) {

    colors.splice(random(colors.length), 1);

  }

  maxFrames = 1000;

  background(random(["#F5F2E3", "#E2DDCB", "#EDD99F", "#C7AE82"]));

}

​

function draw() {

  if (random() < 0.4) {

    drawLine();

  }

  if (random() < 0.9) {

    drawDrop();

  }

  if (frameCount > maxFrames) {

    noLoop();

  }

}

​

function drawLine() {

  stroke(random(colors));

  noFill();

  let n = random(5, 15);

  let points = [];

  let w = random(width/4, 3 * width/4);

  let h = random(height/4, 3 * height/4);

  let x0 = random(-width/6, width - w + width/6);

  let y0 = random(-height/6, height - h + height/6);

  translate(x0 + w/2, y0 + h/2); 

  //let theta = random(TWO_PI);

  //rotate(theta);

  for (let i = 0; i < n; i++) {

    points.push(createVector(random(-w/2, w/2), random(-h/2, h/2)));

  }

  for (let i = 0; i < n; i++) {

    strokeWeight(random(1.5));

    beginShape();

    for (let p of points) {

      let nzx = noise(p.x, p.y, frameCount + i/20);

      let nzy = noise(p.x, p.y, frameCount + i/20 + 1);

      curveVertex(p.x + (nzx - 1/2)*10, p.y + (nzy - 1/2)*10);

    }

    endShape();

  }

}

​

function drawDrop() {

  fill(random(colors));

  noStroke();

  let size = randomGaussian(2, 2);

  let xCenter = random(width);

  let yCenter = random(height);

  let maxNoise = randomGaussian(2, 3);

  beginShape();

  let angleStep = TWO_PI / floor(random(5, 10));

  for (let theta = 0; theta <= TWO_PI + 3 * angleStep; theta += angleStep) {

    let r1, r2;

    r1 = cos(theta)+1;

    r2 = sin(theta)+1;

    let r = size + noise(r1*2, r2*2, frameCount) * maxNoise;

    let x = xCenter + r * cos(theta);

    let y = yCenter + r * sin(theta);

    curveVertex(x, y);

  }

  endShape();

}

​

function keyTyped() {

  if (key === "s" || key === "S") {

    noLoop();

    saveCanvas("PollokNumber31_1240x1748", "jpeg");

  }

}