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////////DO NOT TOUCH

let camera;

let sampleSize = 3;

let camWidth = 320;

let camHeight = 240;

let proportion = camWidth / camHeight;

let threshold;

let multiplier;

let thresholdSlider;

////////DO NOT TOUCH

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///////WRITE YOUR POEM HERE (IN ORANGE TEXT)

let message = "I used to do my self portraits; My fairytale perfect figure The lighting perfectly hits my face, accentuating all of my fake features. All artists are disturbed. I never felt so real. So disgusted, so crushed, so proud, so alive, when I did a self portrait, and it looked like me.";

let messageIndex = 0;

///////WRITE YOUR POEM HERE (IN ORANGE TEXT)

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function setup() {

  camera = createCapture(VIDEO);

  camera.size(camWidth, camHeight);

  camera.hide();

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  //halfway point for colors

  threshold = round((255 * 3) / 2);

  if (windowHeight < windowWidth) {

    createCanvas(round(windowHeight * proportion), windowHeight);

  } else {

    createCanvas(windowWidth, round(windowHeight * (1 / proportion)));

  }

  multiplier = width / camWidth;

  noStroke();

  thresholdSlider = createSlider(0, 765, threshold);

  thresholdSlider.position((width / 2) - (thresholdSlider.width / 2), height - 40);

  //use a monospace font

  textFont('arial');

  textSize(sampleSize * multiplier);

  print(message);

}

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let i, r, g, b, rSize, gSize, bSize;

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function draw() {

  messageIndex = 0;

  background(255);

  camera.loadPixels();

  //create a grid of nested circles

  for (let y = 0; y < camera.height; y += sampleSize) {

    for (let x = 0; x < camera.width; x += sampleSize) {

      i = ((y * camera.width) + x) * 4;

      r = camera.pixels[i];

      g = camera.pixels[i + 1];

      b = camera.pixels[i + 2];

      if (r + g + b < thresholdSlider.value()) {

        text(message[messageIndex], x * multiplier, y * multiplier);

        messageIndex++;

        messageIndex %= message.length;

      }

    }

  }

  fill(0);

  text("Threshold: " + thresholdSlider.value(), thresholdSlider.x - textWidth("Threshold: " + thresholdSlider.value()), thresholdSlider.y + 10);

}