What type of lighting is most suitable for illuminating a stone or brick wall?

Grazing light is particularly effective for illuminating textured surfaces such as stone or brick walls because it enhances the surface's details and features through the play of light and shadow. When light is positioned close to the wall at a low angle, it casts shadows that accentuate the textural elements, allowing the unique characteristics of the materials to be highlighted. This technique is especially useful for creating dramatic effects and drawing attention to the architecture's nuances, making it ideal for showcasing the craftsmanship and design of stone or brickwork.

In contrast, washing light typically provides an even spread of light across a surface, which can result in a flatter appearance that does not accentuate texture as effectively. Modeling with light and shadow focuses on creating a three-dimensional effect and can work well in specific contexts but may not be as suitable for a broad area like a wall. Focal light is designed to highlight specific objects or areas, making it less effective for uniformly illuminating an entire surface meant for visual interest and texture. Overall, grazing light stands out as the best choice for this specific application.