9.5.2

940 • CHAPTER 18
THE SHADERS • 941
Intensity
Scales the Color to produce attenuation in the specular reection of the surface (this simply means it
makes the color darker when the value is close to zero and brighter when the value is closer to 100%
or above). The appropriate range is 0% - 1,000%.
Size
Sets the size of the specular reection. Appropriate value range for Size is 0.001% - 200%.
Contrast
Provides contrast for the result of the specular sample color. Implements a standard contrast function.
Appropriate values are 0% - 100%.
Glare
Works with Intensity by using the edge falloff (multiplied by the Falloff scalar) to change the intensity
of the specular reection. This can be used to add a glare to the surface when a light is reecting
more on an edge or specular effects to reduce the specular reection when a light causes a reection
closer to the edge. Appropriate values run between 0% - 200%.
Falloff
Utilized to vary the falloff of the center of the object to the edge to affect the Glare intensity. Smaller
values cause the specular reection to reect the Intensity value more, while larger values make the
surface use the Glare scalar more. Experimentation is required to fully understand this parameter.
Reection page
The reection you set here is added to the surface color. The following applies to Banji: The brightness
of the reection also affects the opacity of the surface — the brighter the reection, the more opaque
the surface.