Class Name: Colour Shininess

Superclass - <SEDRIS Abstract Base>

Subclasses

Definition

An instance of this DRM class specifies 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.

Primary Page in DRM Diagram:

• 14

Secondary Pages in DRM Diagram:

Example

1. Consider a <Colour Table> instance with a <Presentation Domain> component 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 <Primitive Colour> instance in the table is defined by a <Specular Colour> component and an <Ambient Colour> component.

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

FAQs

No FAQs supplied.

Constraints

• <<Publishable Object>>

Component of (two-way)

• one or more <Specular Colour> instances

Inherited Field Elements

Field Elements

Notes

Fields Notes

shininess

 The shininess field specifies the specular coefficient.