title: RENDER WARNING: there is no texture bound to the unit 1 in Autodesk forge viewer
body: <p>I'm getting many warnings with: <code>RENDER WARNING: there is no texture bound to the unit 1</code>.</p>
  
  <p><a href="https://i.stack.imgur.com/SJEUv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/SJEUv.png" alt="enter image description here"></a></p>
  
  <p>The count increases when I move the mouse across the model. I tried to google it but didn't find anything relevant. </p>
  
  <p>When I comment out these two lines (they're called after geometry was loaded), I get only 19 of these warnings:</p>
  
  <pre><code>    viewer.setQualityLevel(false, false);    // turn off antialiasing and shadows 
      viewer.prefs.tag('ignore-producer');    // disable lighting
  </code></pre>
  
  <p>Could be that it's related? Is there a way to have these two lines and not all of these warnings? </p>