Specularity

The light spots / highlights should give the appearance of a shiny surface. The appearance of the material can be influenced by the hardness , which determines the form of the reflection, and the specularity , which determines the intensity of the reflection.

Specularity or specularity (from Latin speculum: " mirroring ") is the degree of gloss that a material or surface has. The term is in the context of lighting models in computer graphics common.

In the Phong lighting model, for example, shine is indicated by highlights that only arise where the light source itself is reflected. The size and brightness of the highlights can be varied depending on the material to achieve a matte, rough or shiny, smooth appearance.

See also

• Image synthesis

Web links

• Art of Illusion: Textures
• Analysis and reduction of highlights in color images (diploma thesis) (PDF; 16.4 MB)

Individual evidence

1. ^ Bùi Tường Phong : Illumination for Computer Generated Pictures. Communications of the ACM 18,6 (Jun. 1975): 311-317, ISSN  0001-0782 . S. 315: “Taking into consideration that the light received by the eye is provided one part by the diffuse reflection and one part by the specular reflection of the incident light, the shading [...] on an object can be computed [. ..] "