20250410

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

 * dailycoding - 20250410 / graphic

 * by E.C.H (Eiichi Ishii)

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

​

let w, pg;

let num = 500;

let cp = ["#FFF8F0", "#9E2B25", "#51355A", "#2A0C4E", "#F5F8DE"];

​

function setup() {

  w = min(windowWidth, windowHeight);

  createCanvas(w, w);

  angleMode(DEGREES);

  strokeCap(ROUND);

  strokeJoin(ROUND);

  noLoop();

}

​

function draw() {

  background(120);

  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();

    let a = random(360);

    let pm = random([-1, 1]);

    let mr = pm + random(random(random(1)));

​

    pg.translate((w / 1.2) * mr * cos(a), (w / 1.2) * mr * sin(a), -w * 2);

    pg.rotateX(random(360));

    pg.rotateY(random(360));

    pg.rotateZ(random(360));

​

    let r = w / 2;

​

    pg.fill(random(cp));

    pg.noStroke();

    pg.plane(random(r / 4, r), random(r / 4, r));

​

    pg.rotateX(random(360));

    pg.rotateY(random(360));

    pg.rotateZ(random(360));

​

    let mxpr = random(1, r / 10);

    let snum = int(random(1, 6)) * 4;

​

    for (let j = 0; j < snum; j++) {

      pg.push();

      let sq = sqrt(random(1));

      let b = random(360);

      pg.translate(((sq * r) / 2) * cos(b), ((sq * r) / 2) * sin(b));

​

      let pr = random(1, mxpr);

      pg.sphere(pr);

      pg.pop();

    }

​

    pg.pop();

  }

​

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

​

  push();

  translate(w / 2, w / 2);

​

  for (let k = 0; k < int(num / 50); k++) {

    let xn = random(-w, w);

    let yn = random(-w, w);

​

    push();

    translate(random(-w / 2, w / 2), random(-w / 2, w / 2));

​

    let lr = random(1, w / 200);

    stroke(random([120, random(cp)]));

    strokeWeight(lr);

​

    drawingContext.shadowOffsetX = lr / 20;

    drawingContext.shadowOffsetY = lr / 20;

    drawingContext.shadowBlur = lr * 4;

    drawingContext.shadowColor = "black";

    if (int(random(2)) == 0) {

      drawingContext.setLineDash([1, lr * 3]);

    }

    noFill();

​

    beginShape();

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

      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();

  }

  pop();

​

  let rw = w/10;

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

}

​

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

  push();

  randomSeed(540);

  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();

}