const DIM = 1000;

let borders;

let maxW, minW;

​

let BASE_H = 100;

let BASE_S = 255;

let BASE_B = 255;

function setup() {

  createCanvas(DIM, DIM);

  colorMode(HSB);

​

  let gfx = createGraphics(DIM / 2, DIM);

​

  borders = random(height * 0.1, height * 0.5);

  let main_h = height - 2 * borders;

​

  background(220);

​

  BASE_H = random(0, 255);

  texturize(null, 20000);

​

  fill(0);

  noStroke();

​

  rect(0, borders, width, main_h);

​

  gfx.drawingContext.shadowOffsetX = 0; //5;

  gfx.drawingContext.shadowOffsetY = 0;

  gfx.drawingContext.shadowBlur = random(2, 50); //10;

  gfx.drawingContext.shadowColor = color(random(palette));

​

  let currX = 0;

  let halfWidth = width / 2;

  while (currX < halfWidth) {

    let currW = random(width * 0.01, width * 0.1);

    let currH = random(height * 0.01, height * 0.7);

    let currY = halfWidth - currH / 2;

​

    gfx.fill(color(random(palette)));

    gfx.rect(currX, currY, currW, currH);

    // gfx.rect(width-(currX+currW), currY, currW, currH);

​

    currX += currW;

  }

​

  image(gfx, 0, 0);

  push();

  scale(-1, 1);

  image(gfx, -width, 0);

  pop();

  noLoop();

}

​

function draw() {

  // background(220);

}

​

function texturize(g, density) {

  if (g != null) {

    for (let _ = 0; _ < density; _++) {

      g.stroke(

        BASE_H,

        BASE_S - random(0, 5),

        BASE_B - random(0, 8),

        random(10, 75)

      );

      x1 = random(0, width);

      y1 = random(0, height);

      theta = random(0, TWO_PI);

      segmentLength = random(2, 5);

      x2 = cos(theta) * segmentLength + x1;

      y2 = sin(theta) * segmentLength + y1;

​

      g.line(x1, y1, x2, y2);

    }

  } else {

    for (let _ = 0; _ < density; _++) {

      stroke(

        BASE_H,

        BASE_S - random(0, 5),

        BASE_B - random(0, 8),

        random(1, 20)

      );

      x1 = random(0, width);

      y1 = random(0, height);

      theta = random(0, TWO_PI);

      segmentLength = random(2, 5);

      x2 = cos(theta) * segmentLength + x1;

      y2 = sin(theta) * segmentLength + y1;

​

      line(x1, y1, x2, y2);

    }

  }

}

​