9

Advanced Lighting Override Material 1603
Inter face
Override M aterial Physical Properties group
These parameters directly control the base
material’s advanced lig hting proper t ies.
Wa rning: There is no problem with reducing the default
scale, but increasing it for any of these parameters might
cause colors to “burn out ”: if the scale is too great, they
render as pure white, appearing overexposed.
Reflectance Scale—
Increases or decreases the
amount of energy the material reflects. Range=0.1
to 5.0. Default=1.0.
Reflectance Scale increases or decreases the energy of reflected
rays.
Tip: Don’t use this control to increase
self-illumination. Use the Luminance Scale
instead. Luminance Scale is in the Special Effects
group (below).
Color B leed—Increases or decreases the saturation
of reflected color. Range=0.0 to 1.0. Default=1.0.
Color Bleed increases or decreases the saturation of reflected
color.
Transmittance S ca le—Increases or decreases
the amount of energy the material transmits.
Range=0.1 to 5.0. Default=1.0.
Transmittance Scale increases or decreases the energy of
transmitted rays.
Note: This parameter affects only radiosity. It has
no effec t on light tracing .
Special Effects group
These parameters relate to specific components in
the base m aterial.
Luminance Scal e (cd/m^2)—When greater than
zero, scales t he self-illumination component (page
2–1487) ofthebasematerial.Usethisparameter
to have self-illuminating objects contribute energy
to the radiosit y or light-traced solution. Cannot be
less than zero. Default=0.0.
Typically, a value of 500 or more will give good
results.
Indirect Light Bump Scale—Sca les the effect of
thebasematerial’sbump mapping (page 2–1506)
in areas lit by indirect light. When this value is