title: SCNText rendering without curves, not font-like
body: <p>When I run this SceneKit code:</p>
  
  <pre><code>let txt = SCNText(string: "Hello", extrusionDepth: 0.2)
  let textNode = SCNNode(geometry: txt)
  scene.rootNode.addChildNode(textNode)
  </code></pre>
  
  <p>I get very angular text:</p>
  
  <p><a href="https://i.stack.imgur.com/dR0qa.png" rel="noreferrer"><img src="https://i.stack.imgur.com/dR0qa.png" alt="Poorly rendered text"></a></p>
  
  <p>It seems to do this regardless of font and it behaves the same way on a device as in the simulator.</p>
  
  <p>Here's the code in context:</p>
  
  <pre><code>    // create a new scene
      let scene = SCNScene()
  
      // create and add a camera to the scene
      let cameraNode = SCNNode()
      cameraNode.camera = SCNCamera()
      scene.rootNode.addChildNode(cameraNode)
  
      // place the camera
      cameraNode.position = SCNVector3(x: 10, y: 0, z: 75)
  
      // create and add a light to the scene
      let lightNode = SCNNode()
      lightNode.light = SCNLight()
      lightNode.light!.type = SCNLightTypeOmni
      lightNode.position = SCNVector3(x: 0, y: 10, z: 10)
      scene.rootNode.addChildNode(lightNode)
  
      // create and add an ambient light to the scene
      let ambientLightNode = SCNNode()
      ambientLightNode.light = SCNLight()
      ambientLightNode.light!.type = SCNLightTypeAmbient
      ambientLightNode.light!.color = UIColor.darkGrayColor()
      scene.rootNode.addChildNode(ambientLightNode)
  
      let txt = SCNText(string: "Hello", extrusionDepth: 0.2)
  
      let textNode = SCNNode(geometry: txt)
      scene.rootNode.addChildNode(textNode)
  
  
  
      // retrieve the SCNView
      let scnView = self.view as! SCNView
  
      // set the scene to the view
      scnView.scene = scene
  </code></pre>