Recommend a cross-platform OpenGL framework with 3D?

Question

IDE

You need a cross-platform product development environment that meets the following conditions:
» OpenGL, no DirectX.
» Cross-platform, as was said twice.
» C++ development
» The product will be 2D with 3D elements

Answer 1

Maybe Cocos2D will suit you.
Or jMonkey . Completely cross-platform, but development in Java.

Answer 2

OpenGL, no DirectX
as it was said twice. Wow-wow-wow
Take en.wikipedia.org/wiki/Unreal_Engine, bazaar, you want more. And the graphon, and the fizon and the platforms are different, bazaar.