---
title: "Deformation"
url: "https://help.maxon.net/zbp/en-us/Content/html/4_palettes_tool-6-deformation.html"
section_path: "Palettes > Tool Palette > Deformation"
description: "ZBrush's robust deformation system offers a variety of sliders to deform a model as well as a number of options for editing model position, orientation …"
---

# Deformation

ZBrush's robust deformation system offers a variety of sliders to deform a model as well as a number of options for editing model position, orientation, and repeatable actions to all subtools.

![Image: 2024-4-tool-palette-deformation-header.PNG](https://help.maxon.net/zbp/en-us/Content/Resources/Images/2024-4-tool-palette-deformation-header.PNG)\
Palettes > Tool > Deformation

> **Note:** ZBrush for iPad's Deformation works the same as in ZBrush desktop. Learn more in our external ZBrush [Deformation](https://help.maxon.net/zbr/en-us/#html/reference-guide/tool/polymesh/deformation/deformation.html) documentation.

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# Unify

Transforms the selected subtool to the world origin by changing the **X/Y/Z** height, width, depth, and size of a model to an ideal/default size in ZBrush.

![Image: 2024-4-tool-palette-deformation-unify-xyz.PNG](https://help.maxon.net/zbp/en-us/Content/Resources/Images/2024-4-tool-palette-deformation-unify-xyz.PNG)

> **Note:** **Unify XYZ** options are active by default to keep the model unified to its original shape while applying the **Unify** button. **Unify** applies its effect to the chosen axis, resulting in model distortion when a single axis is used.

> **Important:** Default **Unify** dimensions cannot be changed.

> **Tip:** This control is a handy solution when needing to set very large or small scaled models to an optimal size for modeling as well as repositioning models at world center for symmetrical sculpting.

## XYZ

Constrain the **Unify** effect to selected X/Y/Z options assigned in this menu.

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# Mirror

Mirrors the selected subtool along selected axes.

![Image: 2024-4-tool-palette-deformation-unify-xyz.PNG](https://help.maxon.net/zbp/en-us/Content/Resources/Images/2024-4-tool-palette-deformation-unify-xyz.PNG)

## XYZ

Constrains the mirror option to the selected axes.

> **Tip:** Mirror is often needed to flip a model to a correct alignment before applying **Mirror And Weld**.

> **Note:** Learn more about **Mirror And Weld** in this guide's [Modify Topology](https://help.maxon.net/zbp/en-us/Content/html/4_palettes_tool-3-geometry-modify-topology.html.md) section.

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# Smart ReSym

The Smart Realign Symmetry (**Smart ReSym**) button restores symmetry to the object by examining all points in the mesh from beginning to end and determining which were originally intended to align in mirror-symmetrical positions.

![Image: 2024-4-tool-palette-deformation-smart-resym-xyz.PNG](https://help.maxon.net/zbp/en-us/Content/Resources/Images/2024-4-tool-palette-deformation-smart-resym-xyz.PNG)

## ReSym

**ReSym** uses the mirror system to align the positions of vertices from one side to the other.

![Image: 2024-4-tool-palette-deformation-resym-xyz.PNG](https://help.maxon.net/zbp/en-us/Content/Resources/Images/2024-4-tool-palette-deformation-resym-xyz.PNG)

> **Tip:** The **ReSym** function is different from **Mirror And Weld** in its ability to lock one side of an object by masking it before execution. The model's unmasked topology mirrors to match the masked topology.

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# Repeat Last Action

A collection of options to repeat the last action applied from one subtool to another.

![Image: 2024-4-tool-palette-deformation-repeat-last-action.png](https://help.maxon.net/zbp/en-us/Content/Resources/Images/2024-4-tool-palette-deformation-repeat-last-action.png)

> **Note:** Select Deformation actions are supported by **Repeat Last Action**. If you apply an action and see the **Repeat** buttons are disabled, this indicates the previous action is not supported.

## Repeat To Active

Repeats the last Deformation action and applies it to the selected subtool.

## Repeat To Other

Repeats the last action used on the selected subtool to all other visible subtools.

> **Important:** Subtools with model visibility disabled are not affected.

## Mask

Applies existing masks when you use repeat options.

> **Note:** Where the **Mask** option is active, **Repeat to Active** or **Repeat To Other** takes all masks applied to each subtool into account, effectively blocking those parts of the model from any repeated effects.
>
> Where the **Mask** option is disabled, any existing masks applied to the model are ignored.