I think, OpenGl is great! You easily can create 3d objects, rotate, translate them and so on. So I think it’s not that difficult to create a !simple! 3D-engine, lets say kinda labyrinth to crawl through.
But how are those real engines created? E.G. the very fabolous unreal engine? Doesthe unreal engine make use of glVertex? It’s difficult for me to imagine!
And eben if, why are some of these engine wich base on OpenGl slower than others, if they all base on OpenGL?