What is openGl, directX, SFML, sdl, sdl2?

Answer 1

OpenGL and DirectX are graphics apis, that is they are a bunch of functions for drawing graphics on your screen. These work directly with the hardware so they are really fast.

SDL, SDL2, and SFML are just libraries that use OpenGL or DirectX (Or any other graphics api really) and make it easier to write code for.

So simply put, they are tools to draw graphics with. If you need more details I recommend looking into one of those.

Hope that helped!

Answer 2

Thank you very much you really helped : )

Answer 3

Your welcome!