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1496 Chapter 16: Material Editor, Materials, and Maps
Defaults: Grain Thickness=7, Radial Noise=1.0, Axial
Noise=1.0
Gra in T hick ness—Sets the relative thickness of the
color bands that ma ke up the grain. Default=7.
The effect of thickness is relative to the context
of the object. A grain that appears unrealistically
wideonasmalltablemightbeacceptableona
large overhead beam.
Decreasing Grain T hickness 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 far ther 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 para llel with the grain, along
the length of the grain (cy linder A). Default=1.0.
Noise settings 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 No ise=2 ,0
C: Radial, Axial N oise=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=brownish yellow for Color #1
and dark brown for Color #2. Either color can be
replaced or swapped.