Primitives

Reference

Mode

Object Mode and Edit Mode

Menu

Add ‣ Curve

Shortcut

Shift-A

See also

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

Note

Eventually all the primitive curves will be replaced to use the same curve system used for hair curves. Until this is done, their features will diverge.

They can be converted interchangeably to access the full range of edit and sculpting functionalities.

In Object/Edit Mode, the Add Curve menu, provides a few different curve primitives:

Bézier Curve

Adds an open 2D Bézier curve with two control points.

Bézier Circle

Adds a closed, circle-shaped 2D Bézier curve (made of four control points).

NURBS Curve

Adds an open 2D NURBS curve, with four control points, with Uniform knots.

NURBS Circle

Adds a closed, circle-shaped 2D NURBS curve (made of eight control points).

Path

Adds a NURBS open 3D curve made of five aligned control points, with Endpoint knots and the Curve Path setting enabled.

Empty Hair

Adds an empty high-performance curves object and automatically:

• Assigns the active object as the Surface.

• Set the surface object as the parent of the new object.

• Adds a Geometry Nodes modifier to deform the curves on the surface.

The curves can be edited via sculpting.

Note

Hair curves currently have the following limitations:

• No Edit Mode.

• Not supported in Wireframe viewport shading.