Class Name: Specular Color

Superclass - SEDRIS Abstract Base

Definition

The specular reflectance component of a Primitive Color, which causes a "highlight" effect on smooth surfaces when they're illuminated, due to light reflected from the illuminated surface. The color of this component of the lighting equation depends largely on the color of the light source.

Specular Color depends on both

• the angle from the lit object to the light source
• the angle from the lit object to the observer

Primary Page in DRM Diagram:

• 14

Secondary Pages in DRM Diagram:

• 21

Example

See Primitive Color.

FAQs

What is the Color Shininess component used for?

Color Shininess acts as an exponent in the lighting equation to determine how shiny the color appears depending on the angle between the lines to the observer and the light source.

Where can I find out more about specular reflection?

See Foley et. al., Section 16.1.4 "Specular Reflection" of Computer Graphics, Principles and Practices, 2nd ed., 1992, and Woo et. al., Chapter 5 "Lighting" OpenGL Programming Guide, 3rd ed., Addison-Wesley 1999.

Constraints

None.

Composed of (one-way)

• one Color Data
• optionally, a Color Shininess

Component of (one-way)

• optionally, a Light Source
• optionally, a Primitive Color

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