Looking for an OpenGL 2D/3D Game framework

Hi,
Up until recently I have been using the LibGDX Java game framework, which uses OpenGL ES. I’m now looking to move on to C++ or C#, or maybe even Rust, and I’m looking for a game framework to use.
Is anyone able to recommend a good, well documented, game framework that I could take a look at?

Thanks in advance!

Hi @biffbaff64, I would take a look at Quicksilver a simple 2D game framework written in pure Rust, for both the Web and Desktop. It’s still in early development but cool none the less. Also, for C++/Lua I would try GamePlay3D.