Houdini 20.5 Nodes Geometry nodes

Duplicate geometry node

Copies geometry and applies transformations to the copies.

This node type is deprecated. It is scheduled to be deleted in an upcoming revision of Houdini.

Use the Copy and Transform node instead.

(Since version 16.0.)

On this page

The Duplicate OP is a simpler but faster version of the Copy node:

Parameters

Source Group

A subset of input primitives to copy from.

Number of copies

The number of copies to be made.

Transform Cumulative

Each copy is transformed relative to the previous.

Transform Order

Order transformations occur.

Rotate Order

Order rotations occur.

Translate

Translation along xyz axes.

Rotate

Rotation about xyz axes.

Scale

Non-uniform scaling along xyz axes.

Shear

Amount of shearing. The three values represent X on XY plane, X on XZ plane, and Y on YZ plane respectively.

Pivot

The local pivot point of the copy.

Uniform Scale

Uniform scaling.

Preserve Normal Length

Normals to maintain length after transformations.

Create Output Groups

Places each copy into a primitive group.

Preserve Groups

Don’t delete the contents of the copy group if it already exists before adding the copied primitives.

Copy Groups

The name of the group to create for each copy.

Locals

CY

The copy number.

NCY

The number of copies.

The following variables refer to the input geometry.

CEX, CEY, CEZ

The centroid of the entire input geometry.

GCX, GCY, GCZ

The centroid of the input group.

XMIN, XMAX

The X extents of the bounding box of the geometry.

YMIN, YMAX

The Y extents of the bounding box of the geometry.

ZMIN, ZMAX

The Z extents of the bounding box of the geometry.

SIZEX, SIZEY, SIZEZ

The size of the bounding box.

BBX, BBY, BBZ

The point’s relative position in the bounding box.

Examples

DuplicateBox

The Duplicate SOP, in this example, is used to create multiple iterations of a box geometry with each copy scaled and offset cumulatively. Expressions using copy number $CY may be used to control each iteration’s parameters.

See also

Geometry nodes