9

Tools Rollout (Hair and Fur) 523
Update Selection to view the results of a change
in sub-object selection.
Tools R ollou t (Ha ir and Fur )
Select an object with the Hair And Fur modifier applied. >
Modify panel > Tools rollout
This rollout provides tools for accomplishing a
variet y of t asks with Hair, including creating a
hairstyle from an existing spline object, resetting
the hair, and loading and saving general presets
for the modifier as well as specific hairdos. Here
you can a lso specify an object from the current
scenetobeusedashair,suchasaflowerorgroup
of flowers for creating a garden.
Using I nsta nced Ha ir
Besides the built-in hair st rands, which are created
at render time, you can assign any source object as
hair strands, using the Instance Node controls on
the Tools rollout. For example, in the following
illustration, the original orientation of the source
object affects its orientation when it is used as hair
strands.
Rotating the source object affects the hair orientation.
The next illustration shows how increasing the
FrizzRootvaluecreatesgreateramountsof
distortion in the resulting instanced hairs. This
image also shows how a raised pivot in the source
object causes the root of the hair to go below the
surface of the growth object (the red square).
Compare this with the previous illustration, in
which the pivot rests at the base of the source
object.
Frizz causes the instanced hairs to change shape.
ThenextillustrationshowstheeffectoftheMerge
Material check box. On the left side, Merge
Material was left on, with the result that the flower
model retained its original material and coloring
when used as hair. On the r ight, Merge material
wasturnedoff,sotheflower-hairstookonthe
material of the flower pot growth object.
Left: Merge Material on
Right: Merge Material off
Inthenextillustration,theRootThicksetting,
from left to r ight, is 2.0, 10.0, 20.0, and 30.0. With
instanced geometry, the Root Thick value affects
the thickness of the resulting object uniformly
along its height, while the Tip Thick va lue has no
effect. ( The Root Thick and Tip Thick sett ings are
on the General Parameters rollout (page 1–534).)