title: Thickness of lines using THREE.LineBasicMaterial
body: <p>I am using the code below to create hundreds of lines in my three.js scene</p>
  
  <pre><code>edgeGeometry[i] = new THREE.Geometry();
  edgeGeometry[i].vertices[0] = v(x1,y1,z1);
  edgeGeometry[i].vertices[1] = v(x2,y2,z2);
  edgesMat[i] = new THREE.LineBasicMaterial({
      color: 0x6699FF, linewidth: 1, fog:true});
  edge[i] = new THREE.Line(edgeGeometry[i], edgesMat[i]);
  edge[i].type = THREE.Lines;
  scene2.add(edge[i]);
  </code></pre>
  
  <p>It works just fine, but when i change the value of "linewidth" to a bigger OR smaller value, i see NO difference in the scene.<br>
  How should i change the thickness of the lines? Any ideas?<br>
  Thanks, Dimitris</p>