Primitives

Reference

Mode

Object Mode and Edit Mode

Menu

Add ‣ Curve

Hotkey

Shift-A

参考

When adding curves there are some common options like other Objects.

In Object/Edit Mode, the Add Surface menu, provides six different surface primitives:

NURBS surface primitives.

NURBS curve primitives.

NURBS Curve

NURBS Curve only have one control point on each V row.

TODO.

NURBS Circle

NURBS Circle only have one control point on each V row.

TODO.

Note how a circle NURBS surface is never filled, unlike its "real" curve counterpart...

NURBS Surface

TODO.

NURBS Cylinder

TODO.

NURBS Sphere

TODO.

NURBS Torus

TODO.