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1686 Chapter 16: Material Editor, Materials, and Maps
Defaults: Grain Thickness=7, Radial Noise=1.0, Axial Noise=1.0
Gra in Thi ck ness—Sets the relative thickness of the
color bands that make up the grain. Default=7.
The effect of thickness is relative to the context
of the object. A grain that appears unrealistica lly
wideonasmalltablemightbeacceptableona
large overhead beam.
Decreasing Grain Thickness creates grain lines
thatareclosertogether. Theeffectcanresemble
thefinegrainofslow-growthhardwoods.At0,
grain disappears, resulting in what can look like
composition board made from sawdust.
Increasing Grain Thickness creates grain lines that
are farther apart. The effect can resemble tropical
woods that grow continuously.
Grain thickness is shown increasing with identical
noise settings.
Grain Thickness=1, 3
Radial, Axial Noise=1 (defaults)
Grain Thickness=7 (default), 14
Radial, Axial Noise=1 (defaults)
Radial Noise—Setstherelativerandomnessofthe
patternonaplaneperpendiculartothegrain,the
circular ring structure (cylinder B). Default=1.0.
Axial Noise—Setstherelativerandomnessofthe
pattern on a plane paral lel with the grain, along
the length of the grain (cylinder A). Default=1.0.
Noise sett ings let you set the randomness or
"irregularity" of the grain pattern in two directions.
Without any noise, rings and grain are uniform
and look inorganic (upper-left cylinder). The
defaults for both parameters produce moderate
irregular ities (upper-right cylinder).
Radial, Axial Noise=0,0 and 1,1
Angle Y=90, Grain Thickness=3
A: Radial, Axial Noise=0,2
B: Radial, Axial Noise=2,0
C: Radial, Axial Noise=2,2
Angle Y=90, Grain Thickness=3
Cylinders A and B show each parameter acting
alone. Cylinder C shows the combination of the
same settings.
Swap—Exchanges the position of the colors.
Co lors—Selects any two colors for the grain
pattern. Defaults=brow nish yellow for Color #1
and dark brown for Color #2. Either color can be
replaced or swapped.