title: How to use a 360 image as a skybox in SceneKit?
body: <p>I am using Xcode 8 and Swift 3 with SceneKit</p>
  
  <p>I am making a game that takes place on a floating island in the sky. I want the background to be a nice sky with clouds, and I want it to move around accordingly when the camera moves like a skybox would.</p>
  
  <p>I can use an array of 6 images that wrap around to make a skybox, but I can't find any good ones online, nor any good generators to make them. I can find good 360 images like <a href="https://i.stack.imgur.com/3jg21.jpg" rel="noreferrer">this one</a>. My question is: How can I use an image like the above to make a skybox in SceneKit? I am pretty sure it's possible because Apple has it on their website: </p>
  
  <p><a href="https://developer.apple.com/documentation/scenekit/scnmaterialproperty/1395372-contents" rel="noreferrer">https://developer.apple.com/documentation/scenekit/scnmaterialproperty/1395372-contents</a></p>
  
  <p>(You have to scroll down a bit to see it)</p>
  
  <p>So is there a way to do this, and how?
  Thanks. Any help is appreciated.</p>