Sweep

v1.3.0

Generators

Summary

The Sweep turns curves into polygons, with many output options. You can create tubes, square profiles, or use custom cross-sections from a second input. The operator provides extensive control over orientation, twist, scaling, and color along the curve path. When Reorient Curve is enabled, Sweep uses the Orient Curve operator internally to properly align the curve's normal and tangent vectors along its path, ensuring smooth, evenly-distributed geometry without unwanted twisting or deformation in the resulting surface.

Parameters

Reorient CurveReorientcurve

Enables curve reorientation.

Closed CurveClosedcurve

Treats the curve as a closed loop.

Invert NInvertn

Inverts the normal vector direction.

Custom First TangentCustomfirsttangent

Enables custom first tangent vector.

First TangentFirsttangent

Custom first tangent vector direction.

First TangentFirsttangentxFirst TangentFirsttangentyFirst TangentFirsttangentz

Twist AmountTwistamount

Amount of twist to apply along the curve.

Open Twist Ramp EditorOpentwistrampeditor

Opens the twist ramp editor.

Reset Twist RampResettwistramp

Resets the twist ramp to default.

Custom Twist TOPCustomtwisttop

Reference to an external TOP for twist control. When specified, overrides the internal ramp editor.

Twist by AttributeTwistbyattribute

Enables twist control via a point attribute instead of the ramp or TOP.

Twist AttributeTwistattr

Name of the point attribute to use for twist values when Twist by Attribute is enabled.

Surface ShapeSurfaceshape

Type of cross-section shape to use.

Second Input Cross SectionsinputRound TubetubeSquare Tubesquare

WidthWidth

Width of the swept surface. Can be overridden by a LineWidth point attribute.

ColumnsColumns

Number of columns for round tube cross-section.

Round CornersRoundcorners

Enables rounded corners for square tubes.

Corner RadiusCornerradius

Radius of rounded corners.

Corner SidesCornersides

Number of sides for rounded corners.

Scale Cross SectionsScalecrosssections

Scale factor for input cross-sections.

Unique PointsUniquepoints

Generates unique vertices per polygon.

SkinSkinops

Skin primitive method.

Per Line StriplinestripAll PrimitivesallGroups of N PrimitivesgroupSkip Every Nth Primitiveskip

NInc

N value when skinning groups of N input primitives or every N input primitives.

Closed SurfaceClosedsurface

The last vertex is connected to the first vertex.

Output QuadsOutputquads

Whether to output quad primitives instead of triangle primitives.

Apply Scale Along CurveApplyscale

Enables scale variation along the curve.

Open Scale Ramp EditorOpenscalerampeditor

Opens the scale ramp editor.

Reset Scale RampResetscaleramp

Resets the scale ramp to default.

Custom Scale TOPCustomscaletop

Reference to an external Ramp TOP for scale control. When specified, overrides the internal ramp editor.

Scale by AttributeScalebyattr

Enables scale control via a point attribute instead of the ramp or TOP.

Scale AttributeScaleattr

Name of the point attribute to use for scale values when Scale by Attribute is enabled.

Apply Color Along CurveApplycolor

Enables color variation along the curve.

Open Color Ramp EditorOpencolorrampeditor

Opens the color ramp editor.

Reset Color RampResetcolorramp

Resets the color ramp to default.

Custom Color TOPCustomcolortop

Reference to an external Ramp TOP for color control. When specified, overrides the internal ramp editor.

Generate Vertex NormalsGeneratevertexnormals

Generates vertex normals for the output geometry.

Max Number of Primitives per PointMaxprimsperpoint

Maximum number of primitives a point can be part of in the input geometry.

AngleAnglenormal

For vertex normals, the threshold angle between faces above which the shared edge vertices don't share normals.

From Backbone CurvesFrombackbonecurves

Attributes to transfer from backbone curves.

From Cross SectionsFromcrosssections

Attributes to transfer from cross-sections.

BypassBypass

Pass through the first input to the output unchanged.

Free Extra GPU MemoryFreeextragpumem

Free memory that has accumulated when output memory has grown and shrunk.

Inputs

Input 0POP

Backbone Curves

Input 1POP

Cross Sections

Outputs

Output 0POP

POPX_out1