May 2010
Intermediate to advanced
438 pages
11h 28m
English
Content preview from iPhone 3D Programming
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Chapter 1. Quick-Start Guide
Rumors of my assimilation are greatly exaggerated.
—Captain Picard, Star Trek: First
Contact
In this chapter, you’ll plunge in and develop your first application from scratch. The goal is to write a HelloArrow program that draws an arrow and rotates it in response to an orientation change.
You’ll be using the OpenGL ES API to render the arrow, but OpenGL is only one of many graphics technologies supported on the iPhone. At first, it can be confusing which of these technologies is most appropriate for your requirements. It’s also not always obvious which technologies are iPhone-specific and which cross over into general Mac OS X development.
Apple neatly organizes all of the iPhone’s public APIs into four layers: Cocoa Touch, Media Services, Core Services, and Core OS. Mac OS X is a bit more sprawling, but it too can be roughly organized into four layers, as shown in Figure 1-1.
Figure 1-1. Mac OS X and iPhone programming stacks
At the very bottom layer, Mac OS X and the iPhone share their kernel architecture and core operating system; these shared components are collectively known as Darwin.
Despite the similarities between the two
platforms, they diverge quite a bit in their handling of OpenGL. Figure 1-1 includes some OpenGL-related classes, shown in
bold. The NSOpenGLView class in Mac OS X does not exist
on the iPhone, and the iPhone’s EAGLContext and
CAEGLLayer ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.