These complete the modelling and separate the actor from the scenery. Rather, these are good principles and guidelines to follow with a flexible approach. Assume the beam to be 8' - 10' in diameter on the stage. Use two lights for each area, keeping in mind location and angles. Double or triple hang lights, if possible.
Fill lights represent indirect or reflected light.
The answer will influence decisions about key and fill. This method achieves the objective of selective visibility. These are areas other than the main stage areas, such as porches, stairs, etc. Use similar principles but fewer instruments. If limited to a certain number of lighting instruments, use flood or scoop lights to blend the acting areas.