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1540 Chapter 16: Material Editor, Materials, and Maps
Whileamapisassignedtothematerial,itsname
appearsasthemapbutton’slabel.
• Amount spinner —The spinner at the left sets
the amount of intensity mapping to use. At
100.0, intensity mapping has its greatest effect;
at lower amounts, the effect is less pronounced;
at 0.0, the m ap has no effect; and at values
less than 0.0, the material is dimmed. Range:
–100.0 to 100.0.
•
On/of f —The check box between the spinner
and the map button is an on/off switch. When
on, the map is used i n the material. When off,
the map is not used.
Cutout controls—These controls assign a cutout
map (page 2–1542) to the material. To assign a
map, click the oblong button (labeled “None” by
default).ThisdisplaystheMaterial/MapBrowser.
IntheBrowser,choosethemaptype,andthen
click OK. If you choose Bitmap as the map type,
an additional dialog prompts you to choose the
particular bitmap file to use.
Whileamapisassignedtothematerial,itsname
appearsasthemapbutton’slabel.
• Amount spinner —The spinner at the left sets
theamountofcutoutmappingtouse. This
value is a percentage: at 100.0, the map has
its fu ll effect; lower amounts have the effect
of darkening the map, reducing its effect and
increasing transparency. At 0.0, the map is
completely black, making objects with this
material completely transparent.
•
On/of f —The check box between the spinner
and the map button is an on/off switch. When
on, the map is used i n the material. When off,
the map is not used.
Adva nced L ighting Ov err i de
Rollout
Material Editor > Architectura l material > Advanced
Lighting Override rollout
When you create a new Architectural material
(page 2–1535) or edit an existing one, the settings
on the Adjust Radiosity rollout let you adjust how
the material behaves in a radiosity solution (page
3–51).
Obtaining a Better Image
Materials with a bright diffuse color or high
shininess can be high ly reflective. This can lead to
overexposed or washed-out radiosit y solutions.
In general, the best way to adjust this is to reduce
theHSVValue(V)ofamaterial’sdiffusecolor;
or, for a material with a diffuse map, reduce the
map’s RGB level. In some situations, the controls
on this rollout can improve the appearance of the
radiosity solution. Examples of situations where
the material’s radiosit y settings can help include
color bleeding and large dark areas:
• YoumightwanttoreduceReflectanceScaleor
Color Bleed Scale when a large area of color
(for example, a red car pet in a room with white
walls) creates excessive color bleeding. This
mightbephysicallyaccurate,buttheeyeadjusts
for such effects, and the radiosity result might
look better with less reflectance or less color
bleeding.