8
Obstacle Parameters Ro llout 1095
vectors are generated and displayed, and how they
affect other objects.
Note: Objects are subject to a vector field’s forces
only if they are bound to the field with a Crowd
object. For general usage guidelines, see
To u s e a
Vector Field space warp (page 2–1018)
.
Inter face
Display group
The check boxes in this group let you enable and
disable d isplay of four different elements of the
Ve c t o r Fi e l d s p a c e w a r p .
Note: You can select a Vector Field space warp in
the viewport by clicking any of its visible elements
except
therangerepresentation.Ifyou’veturned
off display of all four elements, y ou can still select
the space warp by clicking its gizmo, which, when
viewed f rom the "top" (the orthogonal viewport
in which the warp was created), resembles a pair
of crossed double-headed arrows in the shape of
an X.
Show La ttice—Displays the vector field lattice, a
yellow wireframe box. Default=on.
The vectors are generated at lattice intersections
inside the vector field range.
Show R ange—Displays the volume about the
obstacle object within which vectors are generated,
as an olive-colored wireframe. Default=on.
The range starts out the same shape and size as the
obstacle object, and is typically enlarged with the
Compute Vectors group > Range setting.
Show Vector Field —Displays vectors, which
appear as blue lines emanating outward from
lattice intersections within the range volume.
Default=off.
Show Surface Samples—Displays short green lines
emanating from sample points on the surface of
the obstacle object. D efault=off.
These appear only after you’ve
computed
the
vector field. See
Sample Resolution
for more
information.
VectorScale—Scales the vectors so they’re more
visible or less obtrusive. Default=1.0.
Note: This setting do es not affect the strength of
the vectors; only their visibility.
Icon Size—Adjusts the size of the Vec tor Field space
warp icon, a pair of crossed double-headed arrows.
Increase the size for easier viewpor t selection.
Default=size original ly drawn in view p or t.
Force group
These p arameters determine how the vector field
affects objects within its volume.
Changing any of the Force group settings does not
require that y ou recalculate the vector field.
Note: Using a vector field do es not guarantee
that delegates or particles remain at a particular
distance from the obstacle. In some cases you
might have to animate the Strength, Falloff, and/or