are good for modeling hair, glass, or brushed metal.
, the Specular Color component
appears in the Specular Highlight group. Also, highlight controls
that don’t pertain to the current shader are labeled “N / A.”
To increase or decrease the size of a
To increase or decrease the strength
of a highlight:
- Change the value of Specular Level.
The intensity of the
Highlight curves and the highlights in the preview change. At 0%
specular level, there is no highlight. At 100% specular level, the
curves are at their maximum height with no overloading. At values greater
than 100%, the curves are overloaded: they grow wider, and a wider
area is at the maximum highlight intensity.
The shape of the Highlight
curves affects the blending between the specular and diffuse color
regions of the material. The steeper the curve, the less blending
there is and the sharper the edge of the specular highlight.
To adjust the shape (anisotropy) of the
- Change the value of Anisotropy.
The width of the white
highlight curve and the highlights in the preview change. At 0%
anisotropy, both highlight curves are the same and the highlight
is circular, as in Blinn and Phong shading. At 100% anisotropy, the
white highlight curve and the highlights are extremely narrow.
To adjust the orientation of the highlight:
- Specular Level
Affects the intensity
of the specular highlight. As you increase the value, the highlight
grows brighter. Default=0 for a Standard material, 50 for a Raytrace
Click the map button
to assign a map to the specular level component. See
Level Mapping. This button is a shortcut:
you can also assign specular level mapping in the
Affects the size of the
specular highlight. As you increase the value, the highlight gets
smaller and the material appears shinier. Default=25.
Click the map button
to assign a map to the glossiness component. See
Mapping. This button is a shortcut: you
can also assign specular level mapping in the
Controls the anisotropy,
or shape, of the highlight. At 0, the highlight is round. At 100, the
highlight is extremely narrow. One axis of the Highlight graph changes
to show changes in this parameter. Default=50.
Changes the orientation
of the highlight. The sample slot shows changes in orientation.
This is a value in degrees that can range from 0 to 9,999. Default=0.
- Highlight graph
These two intersecting
curves show the effect of adjusting the values of Specular Level, Glossiness,
and Anisotropy. As you decrease Glossiness, the curves grow wider;
as you increase Specular Level, the curves grow taller. As you adjust
Anisotropy, the white curve changes to show how wide or narrow the highlight