Body Mesh Overview
The Body Mesh feature creates a custom mesh that mimics the user’s body as a 3D mesh in real time.
Getting Started with Body Mesh
To add a
Body Mesh to your Lens Studio project, first go to the
Objects panel, and type
Body Mesh. Then select the
Full Body Mesh.
Your scene will be automatically populated with with a Body Mesh scene object. In your
Resources panel you’ll find a newly created
Body Tracking Asset, as well as a
Full Body Mesh and a default material.
Body Tracking Asset handles the tracking data of the body and is used by
Object Tracking 3D components in the scene. The same asset can be used for multiple bodies, and can also be used for skeletal tracking. The
Full Body Mesh asset is the mesh that will deform according to the tracked body.
Body Mesh Fields
Let’s select the
Full Body Mesh in the Resources panel and take a look at it’s settings:
Body Index decides which tracked body the mesh will correspond to. Note that it should match the index on the
Object Tracking 3D component that contains the
Body Mesh object in scene.
Enabling or disabling the
Head checkboxes on the
Full Body Mesh asset allows you to decide what parts of the body to include in your body mesh.
Working with Body Meshes
Adding a second Body Mesh
To add another
Body Mesh that can be the same or different from the one already created in the scene. We can first duplicate the
Body Mesh component we have.
For the second
Body Mesh, change its
Object Index to 1 so it maps to the second person in the scene.
You’ll notice that the second mesh has the same shape and pose as the first mesh. To change this to track the second person, we can go to the
Full Body Mesh asset of the second person and change its
Body Index to 1 as well.
Tip: To attach objects onto the body mesh, try using the Pin To Mesh Component
Download the Reference 3D Body Mesh
Click here to download a zip that contains a 3D model of the Body Mesh object along with a UV map. You can use these to create modified body meshes or textures.
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