I make some 2D games with SDL, now I think that is the moment to start making games in 3D.
There are lots of options for learn 3D, but my main question is:
I should learn OpenGL and combine it with SDL, o is better option to use any 3D engine like Unity?
I want to prepare for make games in profesional way... So, in this case, what is the best choice for avoid wasting time learning useless thinks?
Thanks you in advance!