8

Attribute Holder Modifier 539
Modifier Stack
Point sub-obj ect l evel—At t his sub-object level, the
base and tip of the gizmo arrow are points that can
be selected. You can select, translate, and animate
these two points together or individually.
For more information on the stack display, see
Modifier Stack (page 3–802) .
Parameters rollout
Parameters group
Fa lloff—Sets the radius of affected vertices, in
units,fromthebaseofthegizmoarrow.(Spinner
value r ange: float, 0.0 to 999,999.0)
Igno re Back Facin g—Affects only those vertices
whosefacenormalsareinthesamegeneral
direction as the gizmo arrow. When turned off, all
vertices in the Falloff group are affected.
Curve group
Pinch—Affects the tangency of the curve where
it meets the arrow tip. Positive values produce
a pointed tip while negative values produce a
dimple. (Spinner value range: float, -999,999.0 to
999,999.0)
Bu bble—Changes the curvature of the affected
vertices. A value of 1 .0 produces a half-dome. As
you reduce this value, the sides of the dome slope
more steeply. Negative values lower the base of the
curvebelowthebaseofthearrowgizmo.(Spinner
value range: float, -999,999.0 to 999,999.0)
Attr ib ute Holder Modi fi er
Create or select an object. > Modify panel > Modifier List
> Object–Space Modifiers > Attribute Holder
Create or select an obje ct > Modifiers menu > Animation
> Attribute Holder
The Attribute Holder modifier is an empty
modifier that prov ides a readily accessible user
interface on the Modify panel to which you can
add
custom attributes (page 1–124) . It has no user
interface of its own; the interface consists solely
of those attributes you assign to it. In essence,
Attribute Holder is a stripped-down version of
Parameter Collector (page 1–133) that can collect
only custom attributes and appears on the Modify
panel instead of a floating dialog.
Procedure
Ex ample: To collect di ffer ent custom a ttr ibutes in a n
Attribute Holder modifier:
Beforeundertakingthisprocedure,youshouldbe
familiar with basic usage of the
Parameter Wiring
dialog (page 2–395)
.
1. Add a small box to an empty scene. Make it
about 20.0 units on a side.
2. Apply a Taper modifier and an Attribute Holder
modifier, in that order.