# Asset Exports
Each avatar can be exported into a number of different export formats.
Our default avatars comes in four different file formats.
Additionally, we can create a custom export format that suits your applications requirements.

## Default Avatar Format
Our default avatar format has the following properties:
* optimized head mesh topology
* 26k vertices
* diffuse, specular, cavity, normal and subsurface textures
* rig for neck and eye movement
* FACS blendshapes for face expressions
* compatibility with Apple ARKit, Unreal LiveLink and Meta Quest Pro face tracking

## Default Export Types

### GLTF / GLB
Avatars may also be exported as *.glb* file. 
It follows the binary format of the [glTF](https://www.khronos.org/gltf) specification and contains the geometry, bones, blendshapes, materials and textures, all in one file. 
We recommend this export format for highest compatibility between tools.
In particular, our integration turotials for [Unity](unity) and [Unreal Engine 5](unreal) ask you to use GLB exports.

### Blender
The Blender export consists of a single .blend-file containing all necessary assets, like textures and materials.
It is optimized for Cycles rendering, but can be used with the Eevee renderer as well.
Currently, the .blend file contains two separate meshes, one with the hairstyle being part of the mesh geometry and one "bald" mesh geometry.


### FBX 
The FBX export assembles a single zip file that contains both the FBX model file and all textures.
If you unzip it, you will find the following file layout:
```
avatar_fbx.zip
├── avatar.fbx
│  
└── textures
    ├── ao_mesh_alpha.png
    ├── cornea_normal.png
    ├── displacement.png
    ├── eyelashes_alpha.png
    ├── eyelashes_diffuse.png
    ├── eyelashes_normal.png
    ├── eyelashes_roughness.png
    ├── eyelashes_specular.png
    ├── eyes_diffuse.png
    ├── eyes_normal.png
    ├── hair_mask.png
    ├── mouth_diffuse.png
    ├── mouth_normal.png
    ├── mouth_roughness.png
    ├── mouth_specular.png
    ├── skin_cavity.png
    ├── skin_diffuse.png
    ├── skin_normal.png
    ├── skin_roughness_metalness_workflow.png
    ├── skin_roughness.png
    ├── skin_specular.png
    └── skin_subsurface_color.png
```

### USD
Coming soon...

## Custom Exports
In addition to the exports provided out-of-the-box with each avatar, we support custom export formats specifically tailored to your needs.
This allows for a seamless integration into any existing character system, any platform and any game engine.

Our custom exporters can automatically
* transfer the default mesh topology to your mesh topology
* project all textures from the default uv maps to your uv maps
* (optionally: generate more or different textures tailored to your specific materials and shaders)
* integrate your rig, blendshapes and/or face rig
* export to your file format and directory specifications

If you have any additional requirements, don't hesitate to reach out to us.
We're keen to find the best integration solution for your needs.