Tool

Hollow Surface

Boolean Operation

Creates a hollow surface by subtracting opening curves from a host geometry

Docs for v2.1.18, the latest version.

ID

tool-boolean-operation-hollow-surface

Group

Boolean Operation

Plugin

Tool

Keywords

surface
hollow
opening
difference
boolean

Hollow Surface

Boolean Operation

3 inputs, 1 output

Ports

Inputs

3

What the node takes in, from wires or typed values.

Geometry

Geometry

Host geometry to hollow

Curves

Curve

Closed opening curves to be removed from host geometry

Auto Orient

Boolean

Default false

When true, run orientation check (slower but ensures correct result). When false, skip check and use geometry as-is (faster).

Outputs

1

What the node gives out, to wire into other nodes.

Surface

Surface

Result hollow surface

Creation method#

There are two options for creating a Hollow Surface node.#

  • The first way to create a Hollow Surface node using the search list, which is opened by double left-clicking in the workspace. You can write the name of the node you need, or words associated with this node.
    • hollow , surface , opening , difference , boolean
  • The second way is to select a Hollow Surface node from the menu that opens from the top left.
    • Menu > Tool > Boolean Operation > Hollow Surface

Steps#

  • Create a Hollow Surface node.
  • Connect the host geometry (surface or face) to hollow to the Geometry port.
  • Connect closed opening curves to the Curves port. These curves define the openings to be removed from the host geometry.

After creating the node, connect the host geometry to the Geometry port, then connect one or more closed curves to the Curves port. The node subtracts the regions enclosed by these curves from the host geometry and outputs the resulting hollow surface on the output port.

See also#

Surface Difference
Surface Union
Surface Intersection

History

First documented in v2.1.18

Oct 20, 2026

Versions before it were published before changes were recorded.