Forgive how horribly stretched it looks, it’s due to the only cubemap of the earth I can find on google being created poorly, not due to my implementation.

And here’s that same south pole, you can see how it’s not wedged in, it’s its own full texture. This is a much better result.

I’ve also got some mouse and keyboard input happening so that I can visually check out my 3D scene. I’ve also packaged up a lot of my code into a class handling SDL and OpenGL now.
The next stage is to do some lighting. Then I think it’s time for some more advanced affects like an atmosphere and moving clouds etc.