Curve primitive | Substance 3D Designer

Last updated on Jul 13, 2023

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Curve primitive

In: Substance Model graph/Creation

Intermediate

Description

The Curve primitive node node generates a primitive Curve of the selected type and outputs it in a Scene. The base geometry of the curve is adjustable. A Curve primitive is one the basic building blocks for your Substance Models.

Alert:

The implementation of B-Spline and NURBS curves in Substance Model graphs is not yet complete. Thus parameters related to them may not have any effect, or be missing.

Parameters

Scene parameters
- Output scene path String
  Sets the Item name and possibly its containing groups. Learn more in the Path expressions and filtering section
Primitive type Integer
The type of the Curve primitive, from a list of basic shapes
Curve type Integer
The type of the Curve generation technique. This parameter changes the way the curve follows the shape of the Primitive type
Keep ends separate Boolean
While the shape still appears to be closed, do not merge the start and end vertices of the shape into a single vertex, and leave the shape open
Note: This parameter is only available for the following primitive types: Ellipse, Star, Rectangle, Polygon
Length Float
The length of the curve
Note: This parameter is only available for the following primitive types: Line, Ellipse, Rectangle
Width Float
The width of the curve
Note: This parameter is only available for the following primitive types: Ellipse, Rectangle
Height Float
The height of the curve
Note: This parameter is only available for the following primitive types: Spiral
Radius 1 Float
The radius of the top (Spiral) or outermost (Star) points of the curve
Note: This parameter is only available for the following primitive types: Spiral, Star, Polygon
Radius 2 Float
The radius of the bottom (Spiral) or innermost (Star) points of the curve
Note: This parameter is only available for the following primitive types: Spiral, Star
Loops Float
The number of loops performed by the trajectory of the curve
Note: This parameter is only available for the following primitive types: Spiral
Number of points Integer
The number of points of the curve. The placement of the points will match the pattern of the selected Primitive type
Note: This parameter is only available for the following primitive types: Star, Polygon
Tessellation Integer
The number of subdivisions of the points of the curve. The placement of the points will match the pattern of the selected Primitive type
Note: This parameter is only available for the following primitive types: Line, Ellipse, Spiral, Rectangle
Direction Vector3
The direction of the curve, expressed as a normalized Vector3
Note: This parameter is only available for the following primitive types: Line
Start spin Float
The orientation of the first point of the curve. The orientation of all points is interpolated along the curve
End spin Float
The orientation of the last point of the curve. The orientation of all points is interpolated along the curve
Enable parallel transport Boolean
Controls whether the orientation of points along the curve should follow the trajectory of the curve
Transform
- Basis Scene
  The Scene holding the reference Basis to be used
- Basis mode Integer
  The arrangement of the axis in the reference Basis