8

Style Dialog (Hair) 529
Previ ew—Performs a quick, low-quality
rendering of the hair as currently sty led. Press ESC
to exit the prev iew and return to the standard view.
Preview shows the hair as it will render.
Editing functions
Toggle Collisions—To enable collisions in
the Style dialog, you need to have already added a
collision object via the Hair modifier > Dynamics
rollout. You can turn off collisions here because
they can be slow and get in your way when
sculpting. If you are able to drag a hair through a
collision-activated surface, tap the mouse button a
couple times and it should correct itself.
Pop Zero/Pop S el ected—If you ’ve sized
some hairs down to nothing, you can use Pop
Zero to get them back; it pops them out a long the
surf ace normal. Pop Selected does the same thing,
but doesn’t require that they be zeroed out first.
Left: Ha ir guides on top of head were scaled to zero length.
Right: Using Pop Zero affec ts only the zero-length hair
guides.
Left: Hair guides b efore using Pop Selected
Right: Hair guides af ter using Pop Selected
Lock S elected—Locks selected vertices w ith
respect to the orientation to and distance from the
nearest surface. Locked vertices can be selected,
but they can’t be moved.
This is useful for creating different types of hair
shapes. For example, to m ake a braid, you would
comb hair dow n some st raight tubes, and then
lock the vertices to the tubes. Then, in 3ds Max,
when you twist the tubes, the hairs will follow.
Locked vertices are no longer dy namic, although
they will follow whate ver the surface does, but if
other vertices on the same guides aren’t locked,
they can still move freely, as usual.
Unlock [U]—Unlocks all locked guide hairs.
Attenuate Length—Scales selected g uides
according to the surface area of underlying
polygons. This is useful, for example, in applying
fur to an animal model, which typically has