8

838 Chapter 8: Modifiers
Inter face
Spline Options group
Threshold—Determines the overall distance that is
used to weld the vertices of the spline object. All
vertices/vectors within the threshold of each other
are treated as one. Threshold u ses units set in the
Units Setup dialog (page 3–891) .
Note: Spline control handles are also treated as
vertices, so setting high Threshold levels can
produce unexpected results.
Flip Normals—Flips the normal direction of the
patch surface.
Remove Interior Patches—Removes interior faces
of an object that you would not normally see.
These are the faces created within the caps or
otherinteriorpatchesofthesametypeofaclosed
polygon.
Use only selected segs—Only segments selected in
the Edit Spline modifier will b e used by the Surface
modifier to create patches.
Note: Segment Sub-Object does not have to be left
on in the Edit Spline modifier.
Patch Topology group
Steps—The steps field spinner determines how
many steps are used between each ver tex. The
higher the step count, the smoother the curve you
will get between vertices.
SurfDeform Modifier
Select an object. > Modify panel > Modifiers List >
Object–Space Modifiers > SurfDeform
Select an object. > Modify panel > Modifiers List >
World–Space Modifiers > Su rfDeform
Select an object. > Modifiers menu > Animation Modifiers
>SurfDeform
Select an object. > Modifiers menu > Animation Modifiers
> SurfDeform (WSM)
The SurfDeform modifier works the same way as
the
PatchDeform modifier (page 1–746) ,except
that it uses a NURBS Point or CV surface instead
of a patch surface to apply surface deformation.
SurfD eform shapes how the snake rests.
Procedure
To use the SurfDeform modifier:
1.
Select an object.
2. From the Modify panel > Modifier List,
choose Object–Space Modifiers > SurfDeform.