Dynamically load Collada files in SceneKit at runtime

The problem

For an upcoming project, a client asked me if I could build a prototype which could load Collada files at runtime.  The flow has to be like this

  • User downloads Collada zip file while using the app (e.g. in-app purchase)
  • Collada file gets unzipped
  • Show the downloaded Collada file in the app

I started looking a possible 3D engines which I could use like Unity, but then I remembered Apple has released the SceneKit SDK which allows pretty high-level access, but with excellent performance.

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