OpenSource library to make OpenGL ES GUIs on the iPhone?

Question

I'm looking for some kind of OpenSource library that allows me to make OpenGL GUIs on the iPhone ( for example the game menu , and some in-game pieces of interface like a player inventory ).

Does anyone know if some sort of library/middleware exists for this ?

A very big commercial example of this ( not for the iPhone ) would be: Scaleform

Answer 1

Have a look at NVIDIA's IMGUI which is released under the MIT License. Unfortunately the actual rendering uses a couple of (very simple) shaders and some immediate mode drawing (glVertex etc.) but it should be pretty easy to convert to fixed function OpenGL ES.

Answer 2

Clutter is probably the best thing out there for what you need. It uses OpenGL ES, and I believe it now works for the iPhone.

Answer 3

A good 2d frame work is cocos2d-iphone. Hope this helps.