TEXTURE

 Texture: it is the visual and tactile quality of the surfaces due to the material.

Tactile textures: are those that can be perceived through the sense of the touch.

Visual textures: those which can only be perceived through the sense of sight.

Natural textures: those that can be found in nature.

Artificial textures: are those created by the human being manually or menically.

Rubbing technique: it consists on fractioning or rubbing a crayon