Class

• <DRM Colour Shininess>

Superclass

• <DRM SEDRIS Abstract Base>

Subclass

• None.

Definition

The specular coefficient that specifies how shiny a colour is to appear, based on the angle between lines from the observer to the coloured object to the light source.

Class diagram

Figure 6.45 — DRM_Colour_Shininess

Constraints

• Publishable Object

Example(s)

• Consider a <DRM Colour Table> instance with a <DRM Presentation Domain> having presentation_domain = { OTW }, the entries of which are intended for use in representing metallic surfaces in the Out-the-Window (OTW) visual domain. Each <DRM Primitive Colour> in the table is defined by a <DRM Specular Colour> and an <DRM Ambient Colour>.

  Depending on the angles between the observer, the metallic surface, and the light source, the shininess of each <DRM Specular Colour> will vary. Hence, each <DRM Specular Colour> in the table is given a <DRM Colour Shininess> component, if the corresponding metal is sufficiently reflective.