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1542 Chapter 16: Material Editor, Materials, and Maps
increase luminance because the object really glows
(for example a neon light tube), then you should
turn on Emit Energy, s o that the object contributes
light to the scene.
Color B leed Scale—Increases or decreases the
saturation of reflected color. Range=0.0 to 100.0.
Default=100.0.
Color Bleed increases or decreases the saturation of reflected
color.
Indirect B ump Scale—Scales the effect of the base
material’s bump mapping (page 2–1506) in areas lit
by indirect light. When this value is zero, no bump
mappingisdoneforindirectlight. Increasing
Indirec t Light Bump Scale increases the bump
effect under indirect lighting. This value does not
affect the Bump amount in areas where the base
material is lit directly. Range=–999.0 to 999.0.
Default=100.0.
Tip: This parameter is useful because indirect
bumpmappingissimulatedandnotalways
accurate. Indirect Light Bump Scale lets you adjust
the effect by hand.
Reflectance Scale—Increases or decreases the
amount of energy the material reflects. Range=0.0
to 100.0. Default=100.0.
Reflectance Scale increases or decreases the energy of reflected
rays.
Tip: Don’t use this control to increase
self-illumination. Use the material’s Luminance
instead. The Luminance control is on the Physical
Qualities rol lout (page 2–1536) .
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.
Cuto ut Mapping
Material Editor > Architectural material > Special Effects
rollout > Cutout ma p button
Assigning a bitmap (page 2–1631) or procedural
map (page 3–997) to the Cutout component of
an Architectural m aterial (page 2–1535) makes
the m aterial partially transparent. Lighter
(higher-value) areas of the map render as opaque;
darker areas render as transparent; a nd values in
between are semi-transparent.
Setting t he cutout map’s Amount to 100 applies a ll
of the map. Transparent areas are fully transparent.
Setting the Amount to 0 is the equivalent of
turning the map off. Intermediate Amount values
are blended with the Transparency value on the
Physical Qualities rollout. Transparent areas of the
mapbecomemoreopaque.