8

1380 Chapter 16: Material Editor, Materials, and Maps
S pecia l Ef f ects R oll out
Material Editor > Architectural material > S pecial Effec ts
rollout
When you create a new Architec tural material
(page 2–1376)
or edit an existing one, the settings
on the Special Effects rollout let you assign maps
that create bumps or displacement, adjust light
intensity, or control transparency.
Inter face
Bump controls—These controls assign a bump
map (page 2–1347)
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 spi nner—The spinner at the left sets the
amount of bump mapping to use. At 1000.0,
bump mapping has its greatest effect; at lower
amounts,thebumpsarelesspronounced;at
0.0,thebumpsarenotvisibleatall.Negative
values reverse the direction of the bump effect.
Range: –1000.0 to 1000.0.
•
On/of f—The check box between the spinner
and the map button is an on/off switch. When
on, the map is used in the material. When off,
the map is not used.
Displacement controls—These controls assign
a
displacement map (page 2–1352) to the
material. To assign a map, click the oblong button
(labeled“None”bydefault). Thisdisplaysthe
Material/MapBrowser.IntheBrowser,choosethe
map type, and then click OK. If you choose Bitmap
as the map type, an additional dialog prompts you
tochoosetheparticularbitmapfiletouse.
Whileamapisassignedtothematerial,itsname
appearsasthemapbutton’slabel.
• Amount spinner—The spinner at the left sets the
amount of displacement mapping to use. A t
1000.0, displacement m apping has its greatest
effect; at lower amounts, the displacement is
lesspronounced;at0.0,thedisplacementare
not visible at all. Negative values reverse the
direction of t he displacement. Range: –1000.0
to 1000.0.
•
On/off —The check box between the spinner
andthemapbuttonisanon/offswitch.When
on, the map is used in the material. When off,
the map is not used.
Intensi ty contr ols —These controls assign an
intensity map to the material, modulating the
material’s brightness. The map is treated as a
black-and-white scale of intensity values.
Tip: Applying a low-frequency Noise map (page
2–1484)
to the intensity can help reduce the
“computer-generated” look of a texture, and add a
naturalfeeltosurfacessuchasbricksandcarpets
lit by daylight.
To assign a map, click the oblong button
(labeled“None”bydefault). Thisdisplaysthe
Material/MapBrowser.IntheBrowser,choosethe
map type, and then click OK. If you choose Bitmap
as the map type, an additional dialog prompts you
tochoosetheparticularbitmapfiletouse.