rtexShader',
      'vertexColorFakeLightFragmentShader',
  ]);

  var m = m4.identity();
  m4.rotateX(m, Math.PI * 0.5, m);
  m4.translate(m, [0.5, 0, -0.5], m);
  var sphereVertices = {
    position: [
      -35, -35, -35,  //     0------1
       35, -35, -35,  //    /|     /|
      -35,  35, -35,  //   / |    / |
       35,  35, -35,  //  2------3  |
      -35, -35,  35,  //  |  4---|--5
       35, -35,  35,  //  | /    | /
      -35,  35,  35,  //  |/     |/
       35,  35,  35,  //  6------7
    ],
    