9

Raytrace Maps Rollout 1523
Raytraced R eflection an d Refraction Antialiaser
group
Controls in this group let you override the global
antialiasing sett ings for raytraced maps and
materials. They are unavailable if antialiasing
is turned off globally. To tur n on antialiasing
globally, choose Rendering > Raytrace Globals to
display the Global Raytracer Settings dialog (page
2–1528).
On—When on, uses antialiasing.
Default=unavailable unless global antialiasing is
on; on if global antialiasing is t urned on.
Drop-down list—Chooses which antialiasing
settings to use. There are three alternatives:
Use Global Antialiasing Settings—(The default.)
Uses the global antialiasing settings.
Fa st Adaptive Antia liaser—Uses the Fast Adaptive
antialiaser, regardless of the global setting.
Multiresolution Adaptive Antialiaser—Uses the
Multiresolution Adaptive antialiaser, regard less of
the global sett ing.
...—The button with the ellipsis to the right of
the drop-down list displays another dialog to let
you set antialiasing controls locally. The dialog
displayed depends on which alternative you chose
in the drop-down list, as follows:
Use Global A ntialiasing S ettings—Clicking ...
displays the Global Raytracer Settings dialog (page
2–1528).
Fa st Ada ptive Antialiaser—Clicking ... displays the
Fa st Adaptive Antialiaser dialog (page 2–1533).
Multiresolution Adaptive Antialiaser—Clicking ...
displays the Multiresolution Adaptive Antialiaser
dialog (page 2–1534).
When you change settings for an antialiaser
locally, you don’t affect the global settings for that
antialiaser.
Raytrace Maps Rollout
Material Editor > Type button > Material/Map Browser >
Raytrace material > Maps rollout
As with a standard material, the Maps rollout
for a Raytrace material (page 2–1512) contains
map buttons for the components of the Raytrace
material that can b e mapped.
You can choose from a large variety of map types.
See Map Types (page 2–1617) to find descriptions
of these types, and how to set their parameters.
Assigning the Same Ma p to Different
Par a met er s
Applying the s ame map to different parameters is
useful in some cases. For example, using a pattern
as both a self-illumination map and a n opacity
map can make the pattern appear to glow and
hover in space.
Blending Map Amounts for Opacity and
Ot her M at eri al Component s
The Specular Level, Glossiness, Self-Illumination,
and Opacity values in the four spinners in the
Basic Parameters rollout are blended w ith their
associated map Amount values in the Maps rollout.
When the O pacity spinner is set to 0, the map
Amount spinner completely con trols Opacity.
That is, reducing the Am ount value increases the
transparencyoftheentiresurface. Ontheother
hand, when Opacity is 100, reducing the map
Amountvalueincreasestheopacityoftheareas
where the Opacity map is less than 1. For example,
you can now adjust a Checker Opacity map so that
the solid areas remain s olid, while the clear areas
are semi-t ransparent.
The Specular Level, Glossiness, and
Self-Illumination channels all behave in the
same way. A setting of 100 applies all of the map; a
setting of 0 is the equivalent of turning the map off.