9

Paint Deformation Rollout 1065
Inter face
PaintDeformationhasthreemodesofoperation:
Push/Pull, Relax, and Revert. Only one of these
modes can be active at a time. The remaining
settings control the effect of the active deformation
mode.
For any mode, choose the mode, change settings
as necessary, and then drag the cursor over the
object to paint the deformation.
To paint deformation anywhere on the object,
remain at the object level, or work at a sub-object
level with no sub-objects selected. To deform only
specific areas of an object, go to a sub-object level
and select the sub-objects in the area to deform.
Push/Pull—Moves vertices into the object surface
(push) or out of the surface (pull). The direction
and extent of pushing or pulling is determined by
thePush/PullValuesetting.
Tip: To reverse the Push/Pull direction while
painting, press and hold
Alt .
Note: Push/Pull supports soft selection in that
effective strength falls off with the selection value
of soft-selected sub-objects.
Relax—Normalizes the distances between vertices
by moving each vertex to a position calculated
from the average of its neighbors. Relax uses the
same method as the Relax modifier (page 1–779).
Use Relax to push apart vertices that are too close
together,ortopulltogetherverticesthataretoo
far apart.
Revert—Lets you gradually “erase” or reverse the
effects of Push/Pull or Relax by painting. Affects
only vertices deformed since the most recent
Commit operation. If no vertices qualify for
reversion, the Revert button is unavailable.
Tip: You can switch to Revert mode temporarily by
pressing and holding the
Ct rl key while painting
deformationinPush/PullorRelaxmode.
Push/Pull Direction group
This setting lets you spe cify whether pushing or
pulling vertices occurs with respect to surface
normals, original or defor med, or along a specific
axis. Defau lt=Original Normals.
Painting deforma tions with Original Normals
typically moves vertices perpendicular to the
original surface; using Deformed Normals
tendstomoveverticesoutwardaftertheirinitial
deformation, resulting in a “puffy” effect.
Original Normals—When chosen, pushing or
pulling a ver tex moves it in the direction of its
normal before deformation. Repeated applicat ions
of Paint Deformation always move each vertex in
thesamedirectionitmovedoriginally.
Deformed Nor mals—When chosen, pushing or
pulling a vertex moves it in the current direction of
the normal; that is, after deformation.
Transform axis X/Y/Z—When chosen, pushing or
pulling a vertex moves it along the specified axis,