Shader Flags
From GiderosMobile
Shader.FLAG_NO_DEFAULT_HEADER
Suppress the automatic addition of a default header for GLSL programs.
The default header for a desktop OpenGL is:
#version 120
#define highp
#define mediump
#define lowp
And for OpenGL ES 2.0:
#version 100
#define GLES2
Shader.FLAG_FROM_CODE
The string contains Shader code rather than the filename of the shader file.
