> ## Documentation Index
> Fetch the complete documentation index at: https://docs.altoura.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cutting Planes & Shapes

The Cutting Planes feature allows users to slice or reveal the interior of 3D objects by applying a configurable clipping plane. This is useful for inspecting internal geometry, showcasing cross-sections, or creating focused visual presentations.

This feature is available only if the [Design Review](/docs/features/design-review-feature-toggle) is enabled. It is supported in Space, Space Builder and Meeting.

## Overview

A cutting plane is an interactive plane (or shaped volume) that intersects a 3D object and hides the geometry on one side of the plane. Once enabled, users can freely position, orient, and configure the plane to achieve the desired cut.

### Key capabilities include:

* Freeform or axis-aligned clipping
* Adjustable clipping shapes
* Resizable cutting area

## Enabling a Cutting Plane

1. On PC: Mode can be activated using the highlighted button located under the Hamburger menu.
2. On HMD: Use the icon in Toolbelt menu.
3. Once enabled, a cutting plane is created automatically.
4. The plane spawns in front of the user.

## Default Behavior

* **Shape**: Plane
* **Mode**: Free (no fixed axis)
* **Size**: Default size large enough to intersect the object

## Moving and Orienting the Cutting Plane

* Grab the cutting plane directly to move it through the object.
* Rotate the plane to change the cut angle.
* The cut updates in real time as the plane is repositioned.

## Clipping Modes

### Free Mode

The cutting plane can be moved and rotated freely.

### Axis-Aligned Mode

* The user can select a specific axis (X, Y, or Z) from the Axis dropdown.
* The cutting plane is locked to the chosen axis.
* Moving the plane along that axis creates a clean, straight cut.

## Changing the Clipping Shape

Users can modify the shape of the cutting plane from the clipping settings.

* The default clipping shape is a flat plane.
* Additional shapes include **Sphere** and **Cube**, which enable volumetric (non-planar) cuts.
* Any change to the clipping shape is applied immediately and updates how the object is clipped in real time.

## Adjusting the Clipping Size

* The Size control changes the dimensions of the clipping shape.
* Increasing the size results in a larger cut or hole.
* Decreasing the size limits the cut to a smaller area of the object.

The clipping size determines how much of the object is affected by the cutting plane.

## Disabling the Cutting Plane

* On PC: Click the same icon again to disable it, or click anywhere in an empty area.
* On HMD: Close the Clipping Plane menu or click the same icon in the Toolbelt menu.
* The objects will return to their original, uncut state.
* No permanent changes are made to the object geometry.