Graphics Reference
In-Depth Information
If you have installed the Android ADT bundle (as described in the
Prerequisites
section of
Building for the Android 4.3 NDK [C++]
), then you
have everything you need to run the Java versions of the applications.
The Java samples are located in the
Android_Java/
folder at the root of
the sample code directory. To build and run the Java examples, simply
open Eclipse and in your Workspace choose Import > General > Existing
Projects Into Workspace. Point the import dialog to the
Android_Java/
folder and you will be able to import all of the sample code from the
book. Once you have imported the samples, you will be able to build and
run them from Eclipse just as you would any Android application.
In general, the Java samples are equivalent to their native counterparts.
The main difference is observed with asset loading, where in some cases
the shaders are stored in external assets rather than placed inline with the
code. This is generally a better practice and makes editing the shaders
more straightforward. The reason this was not done in the C versions
of the samples was to reduce platform variability in how files and other
assets are loaded and to make the samples self-contained in a single file.
Support for OpenGL ES 3.0 was added to iOS starting with version 7. The
iPhone 5s (released in September 2013) is the first iOS device that supports
OpenGL ES 3.0. The iOS Simulator that runs on Mac OS X also supports
OpenGL ES 3.0, so it is possible to run and debug the topic code samples
without having an OpenGL ES 3.0-capable iOS device. This section details
the steps to get up and running with the code samples on iOS7 using
Xcode 5 on Mac OS X 10.8.5.
The only prerequisite aside from Mac OS X 10.8.5 is to download and
install Xcode 5. This version of Xcode contains the SDK for iOS 7 and is
capable of building and running the sample code for the topic.
Each sample in the topic has an
iOS/
folder that contains the xcodeproj and
related files needed for building on iOS. A screenshot of an example project
open in Xcode and running on the iOS 7 Simulator is shown in Figure 16-2.
