UniVRM

The standard implementation of 3D Avatar file format VRM for Unity.

VRM is an extension of glTF 2.0, so this library also support glTF 2.0 files.

Features

UniVRM supports the VRM 1.0 specification and the glTF 2.0 specification.

UniVRM can import/export following supported file types at both runtime and editor.

Supported file types

• VRM 1.0 (.vrm)
• VRM 0.x (.vrm)
• glTF 2.0 (.glb | .gltf | .zip)
• VRM-Animation (.vrma)

Import features

• You can import supported file types at both runtime and editor.
• Support for async/await importing at runtime.
• Support for Migration VRM 0.x files into VRM 1.0 files.
• Support for ScriptedImporter for VRM 1.0 and glTF 2.0.
• You can import glTF's PBR materials into Unity Built-in RP's Standard materials.

Export features

• You can export supported file types at both runtime and editor.
• You can export Unity Built-in RP's Standard materials into glTF's PBR materials.

Supported Environments

The latest UniVRM supports Unity 2022.3 LTS or later from v0.128.0.

UniVRM supports scripting backends both .NET and IL2CPP.

UniVRM supports the following building target platforms:

• Standalone (Windows/Mac/Linux)
• iOS
• Android
• WebGL

The other platforms maybe work but they are not tested.

Installation

Latest Release

Download here

Previous Releases

You can use an previous version of UniVRM if you use an older version of Unity. These are not supported.

Unity Version	UniVRM Release	VRM 1.0 support
2021.3	v0.112.0	Yes
2020.3	v0.100.0	Yes
2019.3	v0.99.1	No
2018.4	v0.79.0	No

You can install UniVRM using the UnityPackage or the UPM Package.

UnityPackage

From the latest release, you can download the .unitypackage files.

• For import/export VRM 1.0
  • You can download VRM-0.XXX.X-YYYY.unitypackage.
  • You can also download sample projects as VRM_Samples-0.XXX.X-YYYY.unitypackage.
• For import/export VRM 0.x
  • You can download UniVRM-0.XXX.X-YYYY.unitypackage.
  • You can also download sample projects as UniVRM_Samples-0.XXX.X-YYYY.unitypackage.
• For import/export glTF 2.0
  • You can download VRM-0.XXX.X-YYYY.unitypackage.

UPM Package

From the latest release, you can find UPM package urls.

• For import/export VRM 1.0
  • You have to install all of the following UPM packages:
    • com.vrmc.gltf
    • com.vrmc.vrm
• For import/export VRM 0.x
  • You have to install all of the following UPM packages:
    • com.vrmc.gltf
    • com.vrmc.univrm
• For import/export glTF 2.0
  • You have to install all of the following UPM packages:
    • com.vrmc.gltf

You can install these UPM packages via Package Manager -> + -> Add package from git URL... in UnityEditor.

Documentation

• https://vrm.dev/en/vrm/index.html

For developers

• https://vrm.dev/en/api/index.html

License

• MIT License