8

Fillet 1033
mode is also used to sc ale a biped that has a mesh
attached to it, to make biped "fit" adjustments after
Physique is applied, and to correct posture for
motion files that need a global posture change.
When Figure mode is turned on, the biped jumps
from its animated position to its Figure mo de
pose. Animation is preserved when you exit Figure
mode.
The parameters on the
Structure rollout (page
2–837)
areactiveonlyinFiguremode,andat
creation time.
Fi l l e t
NURBS fillet curves
A dependent NURBS object that is an arc
connecting two curves. It is controlled by the
objects it connects, and by a radius parameter.
Filter Color / Filter Opacity
Sphere on the right has a light green opacit y filter color.
Filter opacity tints the colors behind the material
using a specified t r ansmission color.
Filter opacity is the default system, because it
provides a more realistic transparency effect.
When the Filter option is set in the Extended
Parameters rollout, the color used by the Filter
Color swatch tints the transparency of the material.
In life, a transparent material, such as colored
glass, affects the colors behind it not by the diffuse
or ambient colors (which are reflected colors), but
by the transmission color.
The transmission color is that proper ty of a
substance that filters certain colors, and allows
others to pass. For example, a sheet of red
cellophane is a filter that blocks all light not in the
red wavelength of the spect rum. By using filter
opacity, you c an specify a transmission color and
achieve strong, saturated colors, no matter how
transparent the material.
Filter ing (Antialiasing)
Filteringisatechniqueofantialiasingthebitmaps
in mapped materials by averaging pixels. The
Pyramidal and Summed Area opt ions provide