【 p5.js/Processing 】Ellipses and Cracked lines.

f:id:ritocopalette:20211201152844p:plain

f:id:ritocopalette:20211201152847p:plain

code( p5.js )

function setup() {
    createCanvas(700, 700);
    noLoop();
    noFill();
}

function draw() {
    // background color
    background(random(220, 250), random(220, 250), random(200, 250));
    strokeWeight(.9);

    // motif position
    let dr_steps = random(95, 100);
    for (let y = 0; y < height; y += dr_steps) {
        for (let x = 0; x < width; x += dr_steps) {
            push();
            translate(x, y);
            pattern001();
            pattern002();
            pop();
        }
    }
}
// motif drawing
function pattern001() {
    let a = 0.0;
    let ranA = random(110);
    let ranB = random(width / 10);
    let inc = TWO_PI / ranA;

    //size
    scale(random(0.09, 0.3));

    // shape
    beginShape();
    stroke(random(190, 250), random(200, 250), random(210, 250));
    vertex(220.5 * sin(a), 2.5 * cos(a));
    rotate(PI / random(2));
    endShape(CLOSE);

    blendMode(BURN);
    for (let i = 0; i < width / 2; i++) {
        rect(i * 0.2, tan(a), tan(a) * ranB, 3);
        rotate(PI / ranA);
        a = a + inc;
    }
    blendMode(BLEND);
}
// motif drawing
function pattern002() {
    let ranA = random(40);

    //size
    scale(random(3.5));

    // shape
    for (let i = 0; i < height / 10; i++) {
        let col1 = color(random(10, 220), random(100, 255), random(100, 255));
        stroke(col1);
        strokeWeight(.4);
        arc(ranA, ranA, 2 * i, 2 * i, random(TWO_PI), random(TWO_PI));
        noFill();
    }
}

code( Processing )

void setup() {
  size(700, 700);
  //noLoop();
  noFill();
  frameRate(1);
}

void draw() {
  // background color
  background(random(220, 250), random(220, 250), random(200, 250));
  strokeWeight(.9);

  // motif position
  float  dr_steps = random(95, 100);
  for (int y = 0; y < height; y += dr_steps) {
    for (int x = 0; x < width; x += dr_steps) {
      push();
      translate(x, y);
     pattern001();
      pattern002();
      pop();
    }
  }
}
// motif drawing
void pattern001() {
  float a = 0.0;
  float ranA = random(110);
  float ranB = random(width / 10);
  float inc = TWO_PI / ranA;
  
  //size
  scale(random(0.09, 0.3));
  
  // shape
  beginShape();
  stroke(random(190, 250), random(200, 250), random(210, 250));
  vertex(220.5 * sin(a), 2.5 * cos(a));
  rotate(PI / random(2));
  endShape(CLOSE);
  
  blendMode(BURN);
  for (float i = 0; i < width / 2; i++) {
    rect(i * 0.2, tan(a), tan(a) * ranB, 3);
    rotate(PI / ranA);
    a = a + inc;
  }
  blendMode(BLEND);
}
// motif drawing
void pattern002() {
  float ranA = random(40);

   //size
  scale(random(3.5));
  
  // shape
  for (int i = 0; i < height/10; i++) {
    int col1 = color(random(10, 220), random(100, 255), random(100, 255));
    stroke(col1);
    strokeWeight(.4);
    arc(ranA, ranA, 2*i, 2*i, random(TWO_PI), random(TWO_PI));
    noFill();
  }
}