Metahuman Avatars

Upload custom Metahuman characters from Unreal Engine to Avatar Studio using the Convai Asset Uploader.

Introduction

This guide walks you through uploading custom Metahuman avatars to Avatar Studio using the Convai Asset Uploader. You'll generate a new project tailored for Metahumans, import your Metahuman asset, configure it, and finally upload it using Convai’s built-in tools.

Prerequisites

Before you begin:

• Create your project using the Convai Asset Uploader, and answer Y when asked if you’re using a Metahuman.

• Ensure you have a downloadable Metahuman available via Quixel Bridge.

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Step-by-Step Guide

1. Open the Project

Navigate to the folder where your project was created. Double-click the YourProjectName.uproject file to open it in Unreal Engine.

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2. Add a Metahuman via Quixel Bridge

• Go to Window > Quixel Bridge.

• In Bridge, select Metahumans from the left-hand menu.

• Pick a Metahuman and click:

  • Download (if not already downloaded)

  • Then Add to include it in your project.

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3. Locate and Open the Character Blueprint

After importing:

• Go to Content/Metahumans/<CharacterName>/.

• Open the Blueprint: BP_<CharacterName>

  ⏳ This may take some time to load.

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4. Fix Compile Errors

If you see compile errors:

• In the bottom-right, click Enable Missing under any Missing Plugins or Missing Project Settings notices.

• Click Restart Now when prompted.

• Reopen the Blueprint and ensure it compiles successfully.

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5. Prepare the Asset for Upload

1. Locate the folder: Plugins/<random code> Content/ (e.g., Plugins/AHK3LNKVC7FZA3I5JG3V Content/)

2. Move the entire Content/Metahumans/ folder into this directory.

   • Use Move Here to complete the action.

   • The final structure should mirror what’s shown in the screenshot.

This folder determines what gets packaged and uploaded. Make sure everything is placed correctly.

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6. Open the Asset Uploader Tool

• Navigate to Content/Editor/AssetUploader.

• Right-click on AssetUploader and select Run Editor Utility Widget.

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7. Select the Character Asset

• Navigate to the Plugins/<random code> Content/Metahumans/<CharacterName>/ directory.

• Select the BP_<CharacterName> Blueprint.

• Then, in the Asset Uploader window, click Pick Asset.

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8. Capture a Thumbnail

• In the Asset Uploader window, click Capture Thumbnail to generate a preview image for your avatar.

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9. Verify Functionality Before Upload

1. Drag BP_<CharacterName> into the Level.

2. Select the character and locate BP_ConvaiChatbotComponent in the Details panel.

3. Input a test Character ID.

4. Press Play and confirm:

   • Animations are working

   • Lip sync is functional

   • Character behaves as expected

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10. Upload the Avatar

• In the Asset Uploader, click Create Asset.

• This will:

  • Package the avatar for Win64

  • Upload it to Avatar Studio

Monitor the Output Log:

• Look for Package completed

• Then wait for Uploaded Asset

If there’s an error during packaging, check the logs and share them on the Convai Developer Forum for support.

To delete a previously uploaded asset, open AssetUploader and click Delete.

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Accessing the Avatar

1. Go to Avatar Studio

2. Open the Upload Your Custom Avatar section

3. Your Metahuman will appear, ready for use.

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Summary

Using the Convai Asset Uploader, uploading custom Metahuman avatars is quick and reliable. With proper setup and a few clicks, your characters are live in Avatar Studio and ready for real-time AI interaction.