Doc:2.6/Manual/Game Engine/Android/Building Blender with GLES

WIP

Developing OpenGL ES 2.0 on Linux

Reasons

For (much) easier development we should use linux because:

• It provides nice IDE tools
• No time is wasted on deployment to actual device
• Android's GDB is a hack by Google
  • Because apps are written Java
  • You have to put sleep(3); in your code so GDB would attach
• GDB has poor stack trace on ARM/Android
• GDB don't show code
• Only Command Line tool

Configuring the System

You need to install Mesa OpenGL ES 2.0 and EGL drivers first

• For Ubuntu:

sudo apt-get install libgles2-mesa-dev

• Or it can be build from (didn't try)
  • http://www.mesa3d.org/opengles.html

Check Out Swiss Branch

mkdir blender-sc
cd blender-sc
svn co https://svn.blender.org/svnroot/bf-blender/branches/soc-2012-swiss_cheese soc-2012-swiss_cheese
svn co https://svn.blender.org/svnroot/bf-blender/trunk/lib/android lib/android

You need android libs for fakegl

Fake GL

Fake GL is a smart stub. You can switch between real gl and fake gl calls for testing. Also, this system enables building Blender/Blenderplayer as we cannot eliminate all GL calls.

To build fakegl

• go to lib/android/armv7-a_9/fakegl
• Follow instructions in README file to generate libGLfake.so and libGLUfake.so
• Copy these to files into /usr/lib/

Configuring Cmake

• Open Cmake and enable WITH_BUILTIN_GLEW
• Click on Advanced
• Enable WITH_GLES
• Click Configure
• Set OPENGL_INCLUDE_DIR = ****/lib/android/armv7-a_9/fakegl
• Set OPENGL_gl_LIBRARY = ****/lib/android/armv7-a_9/fakegl/libGLfake.so
• Set OPENGL_glu_LIBRARY = ****/lib/android/armv7-a_9/fakegl/libGLUfake.so
• click generate and build from directory