Ambient light. This acts as fill light. “In bathrooms with taller ceilings a cove or cantilever details ambient lighting fixtures can be installed along the perimeter of the space” Whitehead says. “Architectural details such as these can hide the fixture and create indirect lighting”.
Wall washers either installed on the wall or aimed down from the ceiling are used mostly to highlight decorative features such as an art piece or a textured finish like a brick wall. However the psychological effect created by lighting the walls can make the whole room feel much brighter.
Consider your lighting preferences during the initial design phase of a new build or renovation. For example if you want three pendant lights over your dining table instead of one or two that should be taken into account before construction starts.