20250402

/***********************************

 * dailycoding - 20250402 / graphic

 * by E.C.H (Eiichi Ishii)

 ***********************************/

​

let w, pg;

let num = 300;

let cp = ["#201332", "#3B715B", "#9FB092", "#D3CB9D", "#C54C1E"];

​

function setup() {

  w = min(windowWidth, windowHeight);

  createCanvas(w, w);

  angleMode(DEGREES);

  strokeCap(ROUND);

  strokeJoin(ROUND);

  noLoop();

}

​

function draw() {

  background(255);

​

  pg = createGraphics(w, w, WEBGL);

  pg.angleMode(DEGREES);

  pg.ambientLight(200);

  pg.directionalLight(255, 255, 255, 0, 1, 0);

​

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

    pg.push();

    pg.translate(random(-w, w), random(-w, w), random(-w * 4));

    pg.rotateX(random(360));

    pg.rotateY(random(360));

    pg.rotateZ(random(360));

​

    let r = random(w / 4, w / 2);

    let v = random([20, 40]);

    let rg = r / v;

    pg.noStroke();

​

    for (let z = -r / 6; z <= r / 6; z += rg) {

      pg.push();

      pg.translate(0, 0, z);

      pg.rotateZ(random(-30, 30));

      pg.fill(random(cp));

      pg.arc(0, 0, r, r, 0, 90);

      pg.pop();

    }

​

    pg.push();

    pg.translate(random(-r, r), random(-r, r), random(-r));

    pg.fill(random(cp));

    let sr = random(r / 20, r / 4);

    pg.sphere(sr);

    pg.pop();

    pg.pop();

  }

​

  image(pg, 0, 0, w, w);

​

  for (let i = 0; i < int(num / 10); i++) {

    push();

    translate(w / 2, w / 2);

​

    let xn = random(-w, w);

    let yn = random(-w, w);

​

    stroke(random([0, random(cp)]));

    strokeWeight(random(1, w / 200));

    noFill();

​

    beginShape();

    for (let j = 0; j < int(num / 3); j++) {

      let cx = map(noise(xn), 0, 1, -w, w);

      let cy = map(noise(yn), 0, 1, -w, w);

      xn += 0.01;

      yn += 0.01;

      vertex(cx, cy);

    }

    endShape();

    pop();

  }

  let rw = w/10;

  rakkan(rw/2.5, w-rw/1.25, rw, 0);

}

​

function rakkan(posx, posy, r, csw) {

  push();

  randomSeed(6997);

  translate(posx, posy);

  rectMode(CENTER);

  let nr = r / 2.5;

  let lr = r / 20;

​

  if (csw == 0) {

    fill("#e2041b");

    noStroke();

  } else if (csw == 1) {

    noFill();

    stroke("#e2041b");

    strokeWeight(lr / 4);

  }

​

  rect(0, 0, r / 1.4, r * 1.5, r / 5);

​

  if (csw == 0) {

    stroke(255);

  } else if (csw == 1) {

    fill(255);

    stroke("#e2041b");

  }

  strokeWeight(lr / 1.5);

  noFill();

​

  for (let i = 0; i < 10; i++) {

    let z = random(lr / 20, lr / 2);

    push();

    push();

    translate(0, -nr);

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), random(-z, z));

    vertex(random(-z, z), nr / 2 + random(-z, z));

    vertex(nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

​

    beginShape();

    vertex(-nr / 2 + random(-z, z), random(-z, z));

    vertex(nr / 2 + random(-z, z), random(-z, z));

    endShape();

    pop();

​

    push();

    translate(0, 0);

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), random(-z, z));

    vertex(random(-z, z), nr / 2 + random(-z, z));

    vertex(nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

​

    strokeWeight(lr / 3);

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

    pop();

​

    push();

    translate(0, nr);

    beginShape();

    vertex(-nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

​

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

​

    beginShape();

    vertex(-nr / 2 + random(-z, z), random(-z, z));

    vertex(nr / 2 + random(-z, z), random(-z, z));

    endShape();

​

    strokeWeight(lr / 3);

​

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

    pop();

    pop();

  }

  pop();

}

​

function keyPressed() {

  redraw();

}