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Here’s a nice tutorial for learning Scene Kit by Ricardo Rendon Cepeda.

The tutorial goes through an in-depth explanation of Scene Kit, setting up a project, setting up a scene’s camera, lighting and background, and goes through the creation of a simple atom visualization app drawing the carbon atoms for several different substances complete with coloring and material.

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Here’s another library for working with SQLite databases in swift called SQLite.swift from Stephen Celis with a nice simple syntax. A playground is included for interactively exploring SQLite.swift.

Some of the features of SQLite.swift as stated in the readme include:

  • Uncomplicated query and parameter binding interface
  • Safe, automatically-typed data access
  • Implicit commit/rollback interface
  • Developer-friendly error handling and debugging
  • Well-documented
  • Extensively tested

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Learn how to use the new Handoff API introduced in iOS 8 to allow users to continue their activities across different devices.

Handoff is a new feature in iOS 8 and OS X Yosemite. Handoff lets you continue an activity uninterrupted when you switch from one device to another – without the need to reconfigure either device.

You can add handoff feature to your iOS and OS X apps in iOS 8 and Yosemite. In this tutorial you’ll learn the basic workings of Handoff and how to use it on iOS with a non-document-based app.

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Warren Moore on Metal Textures and Samplers:

In this post, we’ll talk about texture mapping, which helps us bring virtual characters to life. We’ll also introduce samplers, which give us powerful control over how texture data is interpreted while drawing. Along the way, we will be assisted by a cartoon cow named Spot.

Textures and Samplers in Metal

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