9

532 Chapter 8: Modifiers
Left: Hair guides in their default position
Right : Hair g uides after clicking Recomb
Reset Rest—Performs an averaging of hair
guides using the growth mesh’s connectivity.
This function is particularly useful after using
Recomb.
Toggle Collisions—When on, styling takes
hair collisions into account. When off, styling
ignores collisions. Default=off.
For collisions to b e used w hi le styling, you need
to ha v e already added at least one collision object
using the Dynamics rollout (page 1–545).Ifno
collisions are specified, this button has no effect.
Tip: If you collisions are enabled and styling
interaction seems slow, try turning off Toggle
Collisions.
Toggle Ha ir —Toggles viewport display of
generated (interpolated) hair. This doesn’t affect
display of the hair guides. Default=on (hair is
displayed).
Lock —Locks selected vertices with respect
to the orientation to and distance from the nearest
surface. Locked vertices can be selected, but they
can’t b e moved.
This is useful for creating different types of hair
shapes. For example, to make a braid, you would
comb hair down some straight tubes, and then
lock the vertices to t he tubes. Then, in 3ds Max,
when you twist the tubes, the hairs will follow.
Locked vert ices are no longer dynamic, although
they will follow whatever the sur face does, but if
other vertices on the same guides aren’t locked,
they can sti ll move freely, as u sual.
Unlock—Unlocks all locked guide hairs.
Undo—Reverses the most recent ac tion.
Keyboard shortcut:
Ct rl +Z
Hair Groups group
Split Selected Hair Groups—Splits the
selected guides into a group. This can be useful for
creatingapartoracowlick,forexample.
Mer ge Sel ected Hai r Gr oups—Recombines
selected guides.
If you don’t use Split Selected Hair Groups,
then when you render hair, the generated hairs
are interpolated across a styled part. When
Split Selected Hair Groups is on, there is no
interpolation between the split group and other
hairs. To remove this effect and make the p art less
“clean,” click Merge Selected Hair Groups.
Quad Menu for Hair Styling
WhileyouarestylinghairattheGuidessub-object
level, right-clicking a viewport displays a quad
menu that contains shor tcuts to m any styling
controls that are also found on the Styling rollout
(page 1–526).