Britannica Sources used in this answer

How do rough and smooth textures affect touch and the reflection of light?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

The Great Court at the British Museum in London features a large central rotunda surrounded by wide steps and a glass and steel lattice roof, with visitors walking throughout the space. — Architecture The Great Court, designed by Foster and Partners, 2000; in the British Museum, London.

In architecture, texture serves two primary functions: it provides tactile qualities and influences the visual behavior of light.1

Tactile Experience

Tactile texture is an inherent property of a material's composition or manufacturing process. While surfaces like glass or polished stone offer a smooth, refined feel, materials like brick, rough-sawn lumber, or naturally irregular stone provide a coarse, vigorous tactile experience. These textures are typically perceived through intimate physical contact, though the eye can often approximate these sensations from a distance.12

Reflection of Light

Texture significantly alters how light interacts with a surface, creating visual patterns.1
* Smooth surfaces: These tend to reflect light more uniformly, often conveying a sense of refinement or precision.1
* Rough surfaces: These create complex patterns of light and shadow through their irregularities, such as the projection and recession of brick courses or the specific direction of chiseling on stone.1

By manipulating these surfaces, architects create visual rhythms and movement across a building's facade, harmonizing different textures to achieve a cohesive expressive whole.1