<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Visibility</title>
    <meta name="description" content="Visibility - A-Frame">
    <script src="../../../dist/aframe-master.js"></script>
  </head>
  <body>
    <a-scene stats>
      <a-assets>
        <a-mixin id="cube" geometry="primitive: box"></a-mixin>
        <a-mixin id="cube-hovered" material="color: pink"></a-mixin>
        <a-mixin id="cube-selected" material="color: cyan"></a-mixin>
        <a-mixin id="red" material="color: r