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1102 Chapter 9: Surface Modeling
Point S urf ace
Create panel > G eometry > N URBS Sur faces > Point Surf
Createmenu>NURBS>PointSurface
Points shape the surface they lie on.
Point surfaces are NURBS surfaces (page 1–1101)
whose points are constrained to lie on the surface.
Because an initial NURBS surface is meant to
be edited, the surface creation parameters do
not appear on the Modify pa nel. In t his respect,
NURBS surface objects are different from other
objects. The Modify panel provides other ways to
change the values you set in t he Create panel.
Procedure
To create a point su r f a ce:
1.
Go to the Create panel.
2. Turn on Geometry, and choose NURBS
Surfaces from the drop-down list.
3. Turn on Point Su r f.
4. In a viewport, drag to specify the area of the
planar segment.
5. Adjust the surface’s creation parameters.
Interfa ce
Thecreationparametersarethesameforboth
pointsurfacesandCVsurfaces,exceptthatthe
labels indicate which kind of basic NURBS surface
you are creating.
Keyboard Entr y rollout
The Keyboard Entry rollout lets you create a point
surfacebytyping. Usethe
Tab key to move
between the controls on this rollout. To click the
Create button f rom the keyboard, press
Enter
while the button is active.
X, Y, and Z—Let you enter the coordinates of the
center of the surface.
Length and Width—Let you enter the dimensions
of the surface in current 3ds Max units.
Length Points—Lets you enter the number of points
along the length of the surface (this is the initial
number of point columns).
Width PointsLets you enter the number of points
along t he width of the surface (this is the initial
number of point rows).
Cr e a te—Creates the surface object.