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OpenGL-ES

OpenGL-ES

Maemo OpenGL-ES

Books about OpenGL-ES

• Mobile 3D graphics with OpenGL-ES and M3G"
• OpenGL ES 2.0 programming guide

Imagination Technologies SDK

• OpenGL-ES SDK

OpenGL variants

• OpenGL-1.0 has fixed shaders and fixed API to using them
• OpenGL-2.0 adds programable shaders but fixed pipeline api is still there for backward compatibility

• OpenGL-ES1.0 is OpenGL-1.0 with lot of "syntactic sugar". extra redundant API's removed and fractional integer API added
• OpenGL-ES2.0 is OpenGL-2.0 using programable shaders is mandatory, all old fixed pipeline API's removed

Porting between openGL variants

• OpenGL-1.0 application works with OpenGL-2.0 but not opposite
• OpenGL-1.0 application is possible to port to OpenGL-ES1.0 but needs work if it is using some of removed API's
• OpenGL-2.0 application that uses programable shaders is possible to port OpenGL-ES2.0 but may need so me work
• Porting OpenGL1.0 or OpenGL-ES1.0 applications to OpenGL-ES2.0 needs lot of rewrite to use programable shaders.