Movement SDK building blocks

Updated: Jan 22, 2026

Movement SDK building blocks are self-contained components that let you add advanced movement functionality with minimal setup.

To learn more about using Meta’s building blocks in Unity, see Explore Meta Quest Features with Building Blocks.

Movement SDK building blocks

The Movement SDK includes the following building blocks:

Building block name	Description	Use cases	Movement SDK version required
Body Tracking (Character Retargeter)	Packages body tracking functionality. Captures and interprets the user’s body movements, including the position and rotation of body parts and joints. Provides components and scripts for using body tracking data in your app.	- Fitness tracking, using pose detection to count the number of leg raises - Climbing a rope in a game by using hand gestures	v83 or later
Networked Character	Packages network character retargeter functionality. Optimizes transmission of body tracking data across networked environments to enable synchronized movement for multiplayer experiences.	- Social VR worlds, in which the avatars mirror real-life gestures, poses, and interactions - Virtual concerts, in which the audience can experience the performer and environment	v83 or later

Add building blocks to your project

Before adding Movement SDK building blocks, you must have the following:

A Unity project set up for Meta Quest device development: See Set up Unity for VR development for instructions.

Movement SDK: See Getting started with the Meta XR Movement SDK for instructions.

To add a building block to your Unity project:

From the top menu bar, navigate to Meta XR Tools > Building Blocks. A window named Building Blocks should appear. From this window, you can discover and add the building blocks available from the Meta XR SDKs included in your project.

Locate the building block you want to add and click the preview image to view a description.

Click Add Block to import it into your scene.

To locate the Movement SDK building blocks, select the Movement filter in the Building Blocks menu as shown below:

Character Retargeter building block

When selecting the Character Retargeter building block, you should see the following dialog:

This includes information on dependencies and usage. You can add the building block to a character prefab from this dialog.

Networked Character building block

When selecting the Networked Character building block, you should see the following dialog:

This includes information on dependencies and usage. You can configure the building block prior to adding it by selecting options in the Implementation and Install Matchmaking sections.

Learn more

Body tracking samples: sample scenes that apply body retargeting to two characters

Troubleshooting Movement SDK: recommendations on resolving issues with Movement SDK components

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