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How to Create VRM File

How to Create VRM File

VRM is a data format for handling humanoid avatar data.

What can it be used for?

*VRM has two versions : vrm-0.X and vrm-1.0. As Vket only accepts vrm-0.X on submission, please do not use vrm-1.0!

Basically, vrm files can be used on any VRM applications.

The file format is supported by streaming apps for Vtubers, avatar photography apps, and certain VRSNS. Creators may include their VRM as part of their avatar packages, intended for use on such apps.

Also, VRM format may occasionally be used in Vket submissions, as for accepting avatar data by VRM models on the Web Submission. *Availability of submission using VRM may vary among events, so please refer to the exhibition guideline for details.

How to create a VRM file

VRM files can be created by converting the original file with "UniVRM" on Unity.

Here, a rough overview of the procedure will be explained. *For details, please refer to the official reference of the VRM consortium.

https://vrm.dev/en/vrm/how_to_make_vrm/

1. Download UniVRM

Firstly, download the UniVRM unitypackage from this page. The latest edition would be the best option.

vrm

2. Import the downloaded UniVRM into the Unity project

Open a Unity project, and drag & drop the downloaded UniVRM unitypackage to import. *Please do not import UniVRM to the Unity project for creating Vket exhibitions. The files such as MToon shaders may conflict with files for submission!

vrm

3. Import model data such as FBX and texture

  • Import all necessary files of your model into Unity.
  • Set materials of the model.
    • In VRM, you may only use 3 kinds of shaders: MToon, Unlit, or Standard. If you are already using different shaders, please replace them with either one of MToon, Unlit, or Standard.
    • If you choose to use MToon series, please use the "MToon" shader, as "MToon10" is for VRM 1.0.

vrm

4. Set the model as Humanoid

Set the model's Animation Type to "Humanoid", as like setting up an avatar for VRChat.

vrm

5. Normalize the model format

We will then temporarily turn the adjusted model into VRM and make the necessary settings.

  • Place the imported model on the scene.
    vrm
  • Select VRM0 > Export VRM 0.x... from the menu. *As the VRM1 menu will export the model in VRM 1.0 format, make sure to select VRM0. vrm
  • You will see the VRM Exporter. Drop the model from the Hierarchy to ExportRoot.
    vrm

6. Input your license information

Title, Version, and Author are mandatory. Once all of the information are filled, you can click "Export". Optionally, you may set other parameters and the avatar thumbnail.

7. Export VRM

Now, export the VRM file! Save the exported vrm file to the location of your choice. vrm

*You may not be able to perform export if there are errors. Check the error message and make necessary adjustments. Refer to the official reference for details.

https://vrm.dev/en/vrm/how_to_make_vrm/convert_from_humanoid_model/

8. Adjust the model

Here, we will adjust the normalized model again and bring it to completion.

  • Reimport the exported VRM file to Unity.

If you have exported the vrm file under the Assets folder of the Unity project you are working on, you do not need to reimport the file.

  • Place the VRM model on the scene.

vrm

You will find a Prefab generated by the import. Drag and drop it into the scene. You may deactivate the fbx and other objects in the scene as you see fit.

  • Select the VRM model and make various settings from the inspector, like the title, author, and license information.

vrm

*Optionally, you may also set expressions and movable parts at this moment. For details, please refer to the official reference. https://vrm.dev/en/vrm/how_to_make_vrm/setup_vrm/

9. Make the final export of the VRM model

Once the adjustments are made, select the VRM model and selectVRM0 > Export VRM 0.x... from the menu again.

vrm

Export with the VRM Exporter and save at the location of your choice.

Now your VRM file is complete!

Great work! Now your VRM file is ready to go!

Check the Official Guidelines

Before submitting, please make sure to review the Exhibition Guidelines and Submission Rules. For the submission steps, see the Submission Guide.

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