​

function setup() {

  createCanvas(1920/4, 1080/4);

  //pixelDensity(1); // fix for high density displays

    capture = createCapture(VIDEO);

  capture.size(1920/4, 1080/4);

  //capture.hide();

}

​

function draw() {

  background(222);

​

  loadPixels();

  capture.loadPixels();

  let d = pixelDensity();

  for (let x = 0; x < width *d ; x++) {

    for (let y = 0; y < height *d; y++) {

      //let index = (y + x * width) * 4;

      let index = (x + y * width) * 4*d; // Corrected index formula

      // Red.

      // Red.

      pixels[index] = capture.pixels[index];

      // Green.

      pixels[index + 1] = 0;

      // Blue.

      pixels[index + 2] = 0;

      // Alpha.

      pixels[index + 3] = 255;

    }

  }

  updatePixels();

  capture.updatePixels();

}

​

​

​

​