Creates Polygonal, NURBS, or Bezier curves.

The Curve node is a base construction node or can be used with lofts and rails as the guide/extrusion line.

Primitive Types

  • Polygon – Polylines connecting each break point.
  • NURBS – Automatically determine the start and end points of the curve.
  • Bezier – First point is the start point, the second and third points are control points, and the fourth point is the end point.


  • CVs – Control Vertices.
  • Breakpoints – Used to calculate the control vertices.
  • Freehand – Freehand drawing that can be cleaned up using the Fitting Properties.


A list of vector positions used for the control/break points of the curve.

Fitting Properties

Only applies to Freehand curve method.

See Also