We had two speakers at the September meeting.

Demitri Muna gave an introduction to SceneKit — what it is, how to use it, and some tips and pitfalls. His demo apps demonstrated, among other things, how to create objects in the scene programmatically.

You can download Demitri's code here. The zip file contains a PDF of his Keynote presentation, which you can also view below:

Moshe Berman demonstrated a UIKit game engine he wrote called MBTileParser (source on GitHub). He talked about the motivation and design decisions behind his framework.

Here are the slides from Moshe's talk: