Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Programming
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Databases
Mail Systems
openSolaris
Eclipse Documentation
Techotopia.com
Virtuatopia.com

How To Guides
Virtualization
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Windows
Problem Solutions

  




 

 

Android Development
Previous Page Home Next Page
2D and 3D Graphics >

3D with OpenGL

Android includes support for high performance 3D graphics via the OpenGL API — specifically, the OpenGL ES API.

OpenGL ES is a flavor of the OpenGL specification intended for embedded devices. Versions of OpenGL ES are loosely peered to versions of the primary OpenGL standard. Android currently supports OpenGL ES 1.0, which corresponds to OpenGL 1.3. So, if the application you have in mind is possible with OpenGL 1.3 on a desktop system, it should be possible on Android.

The specific API provided by Android is similar to the J2ME JSR239 OpenGL ES API. However, it may not be identical, so watch out for deviations.

Using the API

Here's how to use the API at an extremely high level:

  1. Write a custom View subclass.
  2. Obtain a handle to an OpenGLContext, which provides access to the OpenGL functionality.
  3. In your View's onDraw() method, get a handle to a GL object, and use its methods to perform GL operations.

For an example of this usage model (based on the classic GL ColorCube), showing how to use it with threads can be found in com.android.samples.graphics.GLSurfaceViewActivity.java.

Writing a summary of how to actually write 3D applications using OpenGL is beyond the scope of this text and is left as an exercise for the reader.

Links to Additional Information

Information about OpenGL ES can be found at http://www.khronos.org/opengles/.

Information specifically about OpenGL ES 1.0 (including a detailed specification) can be found at http://www.khronos.org/opengles/1_X/.

The documentation for the Android OpenGL ES implementations are also available.

Finally, note that though Android does include some basic support for OpenGL ES 1.1, the support is not complete, and should not be relied upon at this time.

← Back to 2D and 3D Graphics

Android Development
Previous Page Home Next Page

 
 
  Published under the terms fo the Apache 2.0 License Design by Interspire