title: How to load a font and render it with TextGeometry
body: <p>I recently started working on three.js and now im facing issue on textgeometry.
  Im using three.js version 75 and i used js/helvetiker_bold.typeface.js font.</p>
  
  <pre><code>var geometry = new THREE.TextGeometry( this.txt, {
    size: this.textSize,
    height: this.textHeight,
    curveSegments: 3,
    font: this.textFont,
    weight: "bold",
    style: "normal",
    bevelEnabled: false
  });
  </code></pre>
  
  <p>test is not rendering because of the following issue</p>
  
  <p>1 Uncaught ReferenceError: _typeface_js is not defined</p>
  
  <p>2.three.min.js:889 THREE.TextGeometry: font parameter is not an instance of THREE.Font</p>
  
  <p>Can anyone please help me out.</p>