We watch TV every day. TV picture tubes are made of glass and are smooth. However, the texture that the pictures on TV give people a sense of is a visual texture that awakens the sense of touch through vision, rather than a true texture in the real sense.
Paper is a flat material. Through graphics, people can sense the visual texture of the material. For instance, stripes and patterned background patterns are all designed by taking advantage of people's visual texture.
Texture - The texture on the surface of an object. Any object has a different surface, and different materials have different texture sensations. This kind of texture is called texture. The texture on the surface of an object is either naturally formed or obtained through manufacturing and processing.