# Sprite Masking
## What is Masking?
* In Unity, the mask is a component that automatically crops the target sprite like a window.
* Technically, you will need two game objects: **the target object** and the **masking object**.
* You can add one of the game objects as a child if you want.\
* If you want to use the masking for your Avatar, you should use the **Rigged Mask 2D Component** instead of the Sprite Mask.
{% hint style="danger" %}
The Sprite Mask **wouldn’t work on rigged sprites** in Unity.
{% endhint %}
## How to apply the masking effect?
1\. It is pretty straightforward. Make sure to select the GameObject that you want to use as a Mask
2\. In the inspector, click the `add component` button and select the `Rigged Mask 2D`.
3\. Tab the `Fit to source sprite` button.
4\. That’s it. Now you will see the source sprite is cropped.
{% hint style="danger" %}
It is not going to be working **if the masking sprite has multiple bones**
{% endhint %}
{% hint style="success" %}
**If you want to animate masking sprites**, you might need to add the Sprite Resolver
{% endhint %}
5\. There are several options that you could choose from in the Mask Interaction.
* None
* Visible inside Mask
* Visible outside Mask
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