This is an agnostic tutorial, the renderer, V-Ray, Arnold or Redshift is unimportant as the tutorial is more than just about lighting fundamentals with a specific software,
Using simple polygonal meshes, I will demonstrate what “lighting really” is about: describing and enhancing any story with operation of planes, concepts that are not computer graphics related but are directly linked to representational arts like painting and photography: composition is more important than compositing !