Tactile relief

A physical representation that preserves depth information and surface textures from a two-dimensional image, creating a raised surface that can be explored by touch. Unlike flat raised-line drawings or tactile diagrams, tactile reliefs convey spatial relationships, depth ordering, and surface qualities directly through haptic perception. Produced via CNC milling or 3D printing, tactile reliefs are used in museums, education, and wayfinding to make visual content — such as artwork, maps, and diagrams — accessible to blind and visually impaired users, and can benefit people with cognitive disabilities when paired with audio descriptions.