let grid;

let ptsize;

let chars = ["*", "+", "-", "/", "\\", ",", "•"];

function setup() {

  createCanvas(2000, 2000);

  ptsize = int(width * 0.01);

  let numcells = int(width / ptsize);

  textSize(ptsize*1.5);

  textAlign(CENTER, CENTER);

​

  grid = [];

  let x = 0;

  let y = 0;

  noStroke();

  for (let r = 0; r < numcells; r++) {

    grid[r] = [];

    for (let c = 0; c < numcells; c++) {

      // let n = noise(c * 0.1, r * 0.1);

      let n = randomGaussian(3);

      n = constrain(n, -3, 3);

      n = map(n, -3, 3, 0, 1);

      let idx = int(map(n, 0.0, 1.0, 0, palette.length - 1));

      idx = constrain(idx, 0, palette.length - 1);

      let b = map(n, 0.0, 1.0, 0, 20);

      drawShadow(0, 0, b, random(palette));

      grid[r][c] = idx;

      let tidx = int(map(n, 0.0, 1.0, 0, chars.length - 1));

      tidx = constrain(tidx, 0, chars.length - 1);

      fill(color(palette[idx]));

      text(chars[tidx], x, y);

      x += ptsize;

    }

    y += ptsize;

    x = 0;

  }

}

​

function draw() {

  // background(220);

  noLoop();

}

​

function drawShadow(x, y, b, c) {

  drawingContext.shadowOffsetX = x;

  drawingContext.shadowOffsetY = y;

  drawingContext.shadowBlur = b;

  drawingContext.shadowColor = color(c);

}