title: Can't color the vertices but if use faces the three.js works
body: <p>I am trying to put some color on vertices but the colors do not appear. I am using Three.js library.
  This is the function example I am using:</p>
  
  <pre><code>function parserExpose(arr) {
      var geometry = new THREE.PlaneGeometry(60, 60, arr.x - 1, arr.y - 1);
  
      for (var i = 0, l = geometry.vertices.length; i &lt; l; i++) {
          geometry.vertices[i].z = (arr.topo[i].topoValues / 65535 * 2470);
          geometry.vertices[i].color = new THREE.Color(Math.random() * 0x00ffff);
      }
      geometry.colorsNeedUpdate = true;
      geometry.needsUpdate = true;
      geometry.__dirtyVertices = true;
      geometry.__dirtyNormals = true;
      geometry.computeBoundingSphere();
      //vertexColors: THREE.VertexColors
      //THREE.FaceColors 
      var plane = new THREE.Mesh(geometry, new THREE.MeshBasicMaterial({vertexColors: THREE.VertexColors, wireframe: true, wireframeLinewidth: 3}));
  
      scene.add(plane);
  
  }
  </code></pre>
  
  <p>If I use <code>geometry.faces[]</code> I can change the color but I only want to change on vertices not the faces. </p>
  
  <p>Thx in advance. :)</p>