title: SCNLookAtConstraint, specify how the node looks at the target node?
body: <p>I have a text node. I am telling the node to always look at the camera node like so:</p>
  
  <pre><code>let lookAt = SCNLookAtConstraint(target: cameraNode)
  textNode.constraints = [lookAt]
  </code></pre>
  
  <p>Before I apply that constraint the text looks like this: (see image)
  <img src="https://i.stack.imgur.com/qwkK6.png" alt="enter image description here"></p>
  
  <p>If I apply that constraint, the node look flipped like in the image (see image).
  So, the text does always keep that orientation and correctly look at the camera node, so the constraint is working.</p>
  
  <p><img src="https://i.stack.imgur.com/YsXCe.png" alt="enter image description here"></p>
  
  <p>I am trying to understand how the node "looks" at the target node though. I would obviously want the text to simply stay like shown in the first image as the camera moves around.</p>
  
  <p>I tried to apply a rotation to the text to correct the behavior I get when applying the constraint but didn't work.</p>
  
  <p>So, how can I get the text to have look at another node but not be flipped like in the second image?</p>