9

Raytrace Basic Parameters Rollout 1515
With pixels, wires maintains the same apparent
thickness regardless of the scale of the geometry
or how near or far the object is positioned. With
units, the wires appear thinner at a distance and
thicker at close range, as if they were modeled in
the geometry.
Face Map—A pplies the material to the faces of the
geometry. If the material is a mapped material,
it requires no mapping coordinates (page 3–967).
The map is automatically applied to each facet of
the object.
Faceted—Renders each face of a surface as if it
were flat.
Note: Raytrace material has the same
SuperSampling (page 2–1459) optionsasa
Standard material.
Ambient—This is not the same as the standard
ambient color. For Ra ytrace material, this controls
an ambient absorption factor: that is, how much
the material absorbs ambient light. Setting
Ambient to white is the same as locking the
ambient and diffuse colors in a standard material.
Default=black.
•
Ambient Color check box—When on, the
material uses an ambient color. When off, the
material uses a spinner to set a gr ayscale value
only. Default=on.
•
Co lor swatch—When on, the color swatch shows
the ambient color. To change the color, click
the swatch and then use the Color Selector (page
1–161).
•
Mono spinner —When the check box is off, the
ambient component is gray, and this spinner
lets you adjust the gray value.
Click the map button to assign a map to the
ambient component. S ee Ambient Mapping
(page 2–1497). This button is a shortcut:
you can also assi gn ambient mapping on the
Raytrace Maps rollout (page 2–1523).
Diffuse—Sets the diffuse color. This is the same
as the sta ndard diffu se color. It is the color that
the object reflects, without specular reflection.
Reflection and tr ansparency effects are layered on
top of the diff use result. When Reflect is 100%
(pure white), the diffuse color isn’t visible. (This
differs from the standard material.) Default=50%
gray.
Reflect—Sets the s p e cular reflection color. This
is the color that the reflected environment (that
is, the rest of the scene) is filtered through. The
color’s Value controls the amount of reflection.
If your reflect color is saturated a nd the diffuse
color is black, the effect is like colored chrome
(for example, colored Christmas tree bal ls).
Default=black (no reflec tion).
If raytracing is off (on the Raytracer Controls
rollout), t he object still reflects the environment,
but ignores other objects in the scene. The
environment can be the background color, the
environment map, or the map in the R aytrace
material’s Environment component.
Tip: If you turn off raytraced reflections, set the
Reflect color to a color other than black, and use
a Reflect/Refract map for the local environment
(see the Environment parameter, below), you get
thesameeffectasareflectionmapinastandard
material. This can improve rendering time.
Note: Raytrace reflects and transmits the ID s in
material effects channel (page 2–1443) (G-buffer
(page 3–946)), so it can create glowing reflections,
and s o on.
•
Ref lect Color check b ox—When on, the material
usesareflectioncolor.Whenoff,thematerial
uses a spinner to set a grayscale value only.
Default=on.
•
Co lor swatch—When the check box is on, the
color swatch shows the reflection color. To
change the color, click the swatch and then use
the Color Selector (page 1–161).