The craft of lighting design was practiced for many centuries way before the invention of computer graphics, in many fields such as theater, painting, photography, and cinematography. 3D artists have a great deal to learn from the traditions of earlier lighters.

To get a professional result in lighting you need to control every step of the lighting process, from choosing the appropriate type of lighting for each purpose, to test rendering each light and adjusting its controls and options. Which takes a lot of time!