face-landmarks-detection/demo/index.html

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<head>
  <!-- Load three.js -->
<script src="https://cdn.jsdelivr.net/npm/three@0.106.2/build/three.min.js"></script>
<!-- Load scatter-gl.js -->
<script src="https://cdn.jsdelivr.net/npm/scatter-gl@0.0.1/lib/scatter-gl.min.js"></script>
<style>
  .canvas-wrapper, #scatter-gl-container {
    display: inline-block;
    vertical-align: top;
  }

  #scatter-gl-container {
    border: solid 1px black;
    position: relative;
  }

  /* center the canvas within its wrapper */
  #scatter-gl-container canvas {
    left: 50%;
    position: absolute;
    top: 50%;
    transform: translate3d(-50%, -50%, 0);
  }
</style>
</head>
<body>
  <div id="main">
    <div class="container">
      <div class="canvas-wrapper">
        <canvas id="output"></canvas>
        <video id="video" playsinline style="
          -webkit-transform: scaleX(-1);
          transform: scaleX(-1);
          visibility: hidden;
          width: auto;
          height: auto;
          ">
        </video>
      </div>
      <div id="scatter-gl-container"></div>
    </div>
  </div>
</body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.6/dat.gui.min.js"></script>
<script src="index.js"></script>