Inktober-2021#25

/*

 Inktober 2021

 Prompt: Splat

*/

function setup() {

  createCanvas(800, 600);

  noLoop();

}

​

function draw() {

  background(0);

  let clrs = [

    color("#f72585"),

    color("#b5179e"),

    color("#7209b7"),

    color("#560bad"),

    color("#480ca8"),

    color("#3a0ca3"),

    color("#3f37c9"),

    color("#4361ee"),

    color("#4895ef"),

    color("#4cc9f0"),

  ];

​

  for (let i = 0; i < 99; i++) {

    splat(random(700), random(500), random(50, 300), random(clrs));

  }

​

​

  for (let i = 0; i < 11; i++) {

    let llx = random(800);

    let lly = random(600);

    splat(llx, lly, random(100), color(0));

  }

​

  for (let j = 0; j < 800; j += random(42)) {

    strokeWeight(random(5));

    line(j, random(300), j, random(300, 600));

  }

​

}

​

​

function splat(x, y, r, clr) {

  push();

  translate(x, y);

  noStroke();

  fill(clr);

​

  beginShape();

  let seed = random(TWO_PI);

  for (let a = seed; a < seed + TWO_PI; a += 0.01) {

    let c = cos(a);

    let s = sin(a);

​

    let nx = map(c, -1, 1, 0, 1);

    let ny = map(s, -1, 1, 0, 1);

    let n = noise(nx, ny) * r;

​

    vertex(c * n, s * n);

  }

  endShape();

  pop();

}