title: How to create PlaneGeometry object at some height along z axis?
body: <p>I am using this:</p>
  
  <pre><code>new THREE.Mesh( new THREE.PlaneGeometry( 1000, 1000 ), new THREE.MeshBasicMaterial() );
  </code></pre>
  
  <p>To create a new plane. How to change the height along z axis? None of the arguments are related to it. </p>