What is the difference between Wall Washing, Wall Grazing, and Wall Scalloping?

Wall washing, grazing, and scalloping are three distinct lighting techniques used to enhance the visual appearance of architectural features and create a specific atmosphere. Wall washing involves illuminating a wall uniformly from top to bottom, casting even light that emphasizes the entire wall surface, minimizing shadows, and creating a consistent, clean appearance. Wall grazing, on the other hand, involves placing luminaires much closer to the wall surface to create dramatic highlights and shadows that accentuate the textures and details of the wall surface. Wall scalloping is a method where luminaires are aimed at an angle to create an undulating or scalloped pattern of light and shadow on the wall, which serves to add depth and dimension, often for decorative purposes.