9

CV Surface Sub-Object 1179
Create a dependent multicurve trimmed
surface (page 1–1214).
Create a dependent fillet surface (page
1–1216).
CV Su rface Su b -O bje ct
SelectNURBSobject. >Modifypanel>CreateSurfaces
rollout > CV Surf
Select NURBS object. > Modify panel > NURBS toolbox >
Create CV Surface button
SelectNURBSobject. >Modifypanel>Right-clicka
viewport. > Tools 2 (lower-left) quadrant > Create CV
Surface
CV surface sub-objects a re similar to object-level
CV surfaces (page 1–1103).
See also
Editing Surface Sub-Objects (page 1–1141)
Surface Approximation (page 1–1239)
Procedure
To create a CV surface sub-object:
1.
InaNURBSobject,turnonCVSurf
ontheCreateSurfacesrolloutorCreateCV
Surface in the toolbox.
2. In a viewport, drag to specify the initial area
of the CV surface.
3. Adjust the CV surface’s creation parameters.
Inter face
The p ar ameters that appear when you create a C V
surface sub-object differ from those you see when
you modify it as a sub-object.
CV Surface rollout (creation time)
Lengt h—The length of the surface in c ur rent
3ds Max units.
Width—The width of the surface in current
3ds Max units.
Length Poi nts —The number of points a long the
length of the surface. In other words, the initial
number of point columns in the surface. Range=2
to 50. D efault=4.
Width Points—The number of points along the
width of the surface. In other words, the initial
number of point rows in the surface. Range=2 to
50. Default=4.
Genera te M apping Coordinates—Generates
mapping coordinates so you can apply mapped
materials to the surface.
Flip Normals—Turn on to reverse the direction of
the sur face normals.
Automatic Reparam e ter ization group
The radio buttons in this group box let you
choose automatic reparameterization. With
reparameterization, the surface maintains
its parameteri zation as you edit it. Without
reparameterization, the surface’s parameterization