Open gl

Question

how hard is to code in c using open gl libraries.
and i'd be happy if someone can send a good guide that can help me.
**i'm not old fashioned i just have a project to do in the college**

Answer 1

Much easier than Direct3D I will tell you. There is the OpenGl red book which you can get for free on the web.

Answer 2

If you can use old version of opengl than it is not as hard as it looks.
And you can learn something useful at opengl-tutorial.org

Answer 3

Using glBegin/glEnd isn't that difficult. But shits get tough when you step into GLSL.