9

HSDS Modifier 705
Subdivide—
Performs subdivision and smoothing
on the current selection, and adds a level to the
Subdivision Stack. When the subdivision results
in a con trol grid and other subdivisions have been
performed at the same level of detail, the control
grids may become interconnected.
Vertex Interpolation group—
Determines how selected vertices are treated
during subdivision. Available only in Vertex
sub-object mode.
For best results, use when movi ng control g rid
vertices at a level of detail lower than the highest in
which the vertex resides.
Standard/Conic/Cusp/Corner—Determines how
closely mesh ver tices follow the movement of
control grid vertices. Standard provides the
leastamountofrelativemovement,whileCusp
and Corner provide the most. Corner also
keeps edges adjacent to subdivided vertices
from being rounded off during subdivision.
Default=Standard.
Note: Corner is available only when the selected
ver tex or vertices aren’t surrounded by polygons,
such as the vertices on the edge of a plane object.
Edge Cr ease grou p—
Determines the extent to which selected edges are
treated as creases during subdivision. Available
only in Edge sub-object mode.
For best results, use with control grid edges at
a level of detail lower than the hi ghest in which
theedgeresides.Also,forcreasingtobevisible,
theedgeshouldbeoffsetfromthesurrounding
surface by a significant amount.
Left: Crease=1.0
Center: The eyebrow edges selected at LOD 0
Right: Crease=0.0
Cr e ase —Specifies how much creasing is performed
ontheselectededgeoredges.Atlowsettings,the
edge is relatively smooth. At hig her settings, the
crease becomes increasingly visible. At 1.0, the
highest setting, the edge is not smoothed at all.
Default=0.0. Range=0.0 to 1.0.
Advanced Options rollout
Force Quad s—When on, the modifier converts all
non-quadrilateral faces or polygons to four-sided
polygons. When off, converts all polygons
to triangles. Available only when the object
contains any non-quadrilateral faces or polygons.
Default=off.
When you change the status of Force Quads, any
edits made in the HSDS modifier are lost. A
message appears war ning you of this, and asking
you to confirm the change.
Because the modifier works best with four-sided
polygons, it’s recommended you confirm the
conversion if an object contains non-quadrilateral
faces or polygons. The sphere pr imitive is an
example of such an object; the uppermost and
lowermost faces are three-sided.
Smooth R esult—When turned on, all faces on
theobjectwillbeinsmoothinggroup1,butif
Smooth Result is tur n ed off, each face will in herit
smoothinggroupsfromtheinputMNMesh.