Understanding how textures work in OpenGL can be confusing. Especially for someone new to OpenGL. I Hope that this brief introduction to OpenGL textures can help you.
If you are having problems learning OpenGL, I know how you feel. OpenGL is confusing and is very easy to give up learning it. But hang in there. Let me share with you my first struggles with OpenGL.
So, you want to develop a game engine? That is great! The good news is that you will learn so much about computer graphics. Your programming skills will improve x10. You will no longer be the same. Now the bad news: