Texture mainly deals with surfaces and determines how a typical surface looks and feels. Texture adds depth and interest into a living space and defines the feel/appearance and consistency of a surface. Texture is broadly classified into two types – Visual Texture where the texture is only visible and Actual Texture where the texture is both seen and felt. Anything that has to do with textiles such as pillow cover, bedspreads or anything to do with covers like drapes, wall paint or wallpapers have a texture. While there must be a dominant texture to define a mood, a contrasting texture must also be included to avoid monotony.
Designer cheat sheet
Texture can absorb light (bad) and sound (good) .
You can try measuring with a light meter the amount of light coming off a textured surface to demonstrate this before and after a renovation.
If the goal is coziness, then more texture is better. Texture feels closer, stimulates the senses and is generally inviting,
Corridors are commonly carpeted for the purposes of sound reduction, plus odour and stain absorption. To counteract the light-absorbing quality of carpeting you can use light colours in the carpet and walls, and add a repeating element of shine where the light will catch it. Sconces can add ambient light to draw the eye upwards.