title: Creating a transparent cylinder
body: <p>I'm trying to create a transparent cylinder.  I've tried setting transparent, opacity, etc., but can't seem to get it to work.  Is there any way to do this?  Do I need to load a dummy texture with an alpha channel?  Is there a simpler way?</p>
  
  <pre><code>material = new THREE.MeshBasicMaterial({wireframe: true});
  material.transparent = true;
  mesh = new THREE.Mesh(new THREE.CylinderGeometry(4, 4, 50, 8, 1, true), material);
  scene.add(mesh);
  </code></pre>
  
  <p>Update:  I've changed the code to the following, but it seems wrong to use ShaderMaterial in this way.  But it works...</p>
  
  <pre><code>material = new THREE.ShaderMaterial({wireframe: true, transparent: true});
  mesh = new THREE.Mesh(new THREE.CylinderGeometry(4, 4, 50, 8, 1, true), material);
  scene.add(mesh);
  </code></pre>
  
  <p>Update:  Here are the images.</p>
  
  <ul>
  <li>I can't add the images properly or add links, since I need a reputation of 11, and only have 10, so I've added broken links instead.  Add 'h' in front of each url.</li>
  </ul>
  
  <p>ttp://img692.imageshack.us/img692/6412/shadermaterial.png
  Using ShaderMaterial you see the rectangular grey Sprite surrounded by a transparent cylinder.</p>
  
  <p><a href="http://img855.imageshack.us/img855/3988/opacity00.png" rel="noreferrer">http://img855.imageshack.us/img855/3988/opacity00.png</a>
  Using MeshBasicMaterial with Opacity 0.0.</p>
  
  <p><a href="http://img27.imageshack.us/img27/6087/opacity05.png" rel="noreferrer">http://img27.imageshack.us/img27/6087/opacity05.png</a>
  Using MeshBasicMaterial with Opacity 0.5.</p>
  
  <p><a href="http://img837.imageshack.us/img837/8043/opacity10.png" rel="noreferrer">http://img837.imageshack.us/img837/8043/opacity10.png</a>
  Using MeshBasicMaterial with Opacity 1.0.</p>