title: Swift 4 - SpriteKit over SceneKit - prevent touch for underlying camera controls
body: <p>I'm quite new to Swift development. In my project i have a SpriteKit overlaying the SceneKit scene with allowsCameraControl set to true.</p>
  
  <p>The SpriteKit layer contains buttons - what is the best way to disable the touch/pan events to trigger camera controls when these buttons are interacted with?  (e.g. double tap on a button now triggers camera reset to default position) </p>