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Conval Reallusion Tutorial: Create AI Characters with Three.js

Updated on Aug 05,2025

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In the rapidly evolving landscape of interactive AI and virtual experiences, the ability to create realistic and engaging characters is a game-changer. This article delves into a comprehensive tutorial that will equip you with the knowledge and skills to bring Reallusion characters to life with artificial intelligence, leveraging powerful tools such as Conval, Three.js, Blender, and React. Get ready to embark on a journey that will transform your approach to character creation and integration!

Key Points

Learn to integrate Reallusion characters with AI.

Utilize Three.js and React for browser-based deployment.

Prepare characters using Character Creator and Blender.

Connect characters to Conval AI for interactive capabilities.

Implement lip-sync and action generation for realistic character behavior.

Bringing Reallusion Characters to Life with AI

Welcome to the World of Interactive AI Characters

The creation of lifelike, interactive AI characters marks a significant leap forward in the realm of digital experiences. Imagine characters that not only respond to user input but also exhibit realistic behaviors and emotions. This Tutorial unveils the secrets to achieving this level of immersion, combining the artistic prowess of Reallusion characters with the analytical capabilities of artificial intelligence.

This integration allows for the creation of AI-powered metaverses that run directly in the browser, opening up a world of possibilities for gaming, education, and interactive storytelling. By leveraging tools like Three.js and React, developers can create engaging experiences that were once confined to high-end gaming consoles or specialized software. The democratization of AI Character creation is upon us, and this tutorial is your gateway to mastering this exciting new frontier.

The Essential Tools: Reallusion, Conval, Three.js, Blender, and React

Before diving into the creation process, it's crucial to understand the role of each tool in our arsenal. Each component plays a vital role in bringing our AI-powered characters to life:

  • Reallusion Character Creator: A powerful tool for designing and customizing realistic 3D characters, offering a vast library of assets and intuitive sculpting capabilities.

  • Conval: This is where the magic of AI happens, Conval provides the AI 'brain' that empowers the characters to talk, perceive their environment, and perform actions.

  • Three.js: A JavaScript library that allows you to display animated 3D computer graphics in a web browser

    . It uses WebGL.

  • Blender: An open-source 3D creation suite, Blender is instrumental in refining and preparing the characters for integration into the browser-based environment.

  • React: A JavaScript library for building user interfaces, React is used to create interactive and dynamic front-end experiences.

Together, these tools form a synergistic ecosystem that enables the creation of truly immersive and interactive AI character experiences.

A Step-by-Step Guide to Integrating Reallusion Characters with Conval AI

Let’s walk through the detailed steps to turn Reallusion characters into interactive AI entities. This process will enable the characters to talk to you, perceive the environment, and perform actions.

  1. Prepare Your Reallusion Character:

    • Begin by creating or importing your character in Reallusion's Character Creator 4 (CC4). This tool offers extensive customization options.
    • Export the character as an FBX file, ensuring compatibility with Blender.

      Select 'Blender' in the export settings, remove the 'Embed Textures' checkbox, and choose ‘Mesh’ in the FBX options.

  2. Import and Refine in Blender:

    • Import the exported FBX file into Blender. For best web compatibility, convert all materials to basic materials.
    • Install the 'CC Blender Tools' and 'Baking Add-on' for blender, then, ensure the plugins have been enabled.
    • Export model as gLTF 2.0, ensure that the model type is a .glb file.

  3. Connect to Conval's AI Brain

    • After preparing your character, you will need to create an account on the convai website to setup the AI character's brain.
    • Sign in to Conval (https://www.convai.com/) and navigate to the dashboard.
    • Set the back story, personality and avatar for the chatacter.

  4. Integrate into Code:

    • Use React Three Fiber to put a 3D world into a web browser, this is an adaptation of React that provides a number of tools.
    • Use “gltfjsx” to import GLTF files into JSX components.
    • Set your file paths and setup the useLipSync function for lip-syncing. The documentation for this can be found on the Conval page (https://github.com/Convu-AI/Threejs-World-Tutorial). By following these steps, you'll be well on your way to creating an impressive and interactive AI character experience. This will open the doors for other features such as action generation and scene perception.

Additional Reallusion Resources

Acquiring Reallusion Assets for Richer Experiences

To enhance the realism and diversity of your AI characters, explore Reallusion's ActorCore (https://actorcore.reallusion.com/)

. This platform provides a vast library of pre-made characters and motions, ready to be imported into your projects.

  • Actor Packs: Browse diverse character packs tailored to various themes and scenarios, from modern professionals to fantasy creatures.

  • Motion Library: Access a comprehensive collection of animations and actions that bring your characters to life with realistic movements and expressions.

By leveraging these resources, you can significantly accelerate your character creation process and elevate the quality of your interactive AI experiences.

Using the Core Code Components for Lip-Sync

Add in Code Dependencies to your main App file.

When creating Reallusion Characters there are several lines of code that needs to be set for getting proper lip-syncing, so lets get to it!

Here is a summary of the function call for useHeadTracking:

useLipSync(
    () => client,
    () => characterRef,
    (blendShapeName: string, weight: number) => {
        morphTargetDictionary.current[blendShapeName] = weight
    }
)

In this code, you have the following things:

  • Client
  • characterRef
  • blendShapeName

The client is the convoAI client. The characterRef are all the bones, geometry and items that a Reallusion character carries. The blendShapeName is the bone name for face movement.

Advantages and Disadvantages of this Approach

👍 Pros

Creates highly realistic and customizable AI characters.

Enables deployment of interactive AI experiences on the web.

Offers a wide range of use cases across industries.

Provides tools for dynamic lip-sync and action generation.

👎 Cons

Requires familiarity with multiple software and libraries.

Can be computationally intensive, depending on the complexity of the scene and AI.

May require additional investment in Reallusion assets.

Potential Use Cases for Interactive AI Characters

Unlocking New Possibilities Across Industries

The ability to create and integrate interactive AI characters opens up a myriad of exciting use cases across diverse sectors:

  • Interactive Storytelling: Craft immersive narrative experiences where users can engage in meaningful conversations with AI-powered characters, shaping the story's progression through their interactions.

  • Virtual Training and Simulations: Develop realistic training scenarios for professionals in fields such as Healthcare, Customer Service, or emergency response, allowing them to practice their skills in a safe and controlled environment.

  • Gaming and Entertainment: Enhance the depth and realism of Game worlds by populating them with AI characters that exhibit dynamic behaviors, respond to player actions, and provide engaging interactions.

  • Education and E-Learning: Create personalized learning experiences where students can interact with AI tutors or virtual classmates, fostering a more engaging and effective learning environment.

  • Virtual Assistants and Customer Service: Deploy AI characters as virtual assistants on websites or in virtual spaces, providing personalized support and guidance to customers.

These are just a few examples of the transformative potential of interactive AI characters, and as the technology continues to evolve, we can expect even more innovative applications to emerge.

FAQ

What are the primary tools required for this tutorial?
The primary tools include Reallusion Character Creator 4, Conval, Three.js, Blender, and React. These tools work together to create and integrate interactive AI characters into web-based environments.
Where can I find the necessary code and setup files?
The code and setup files for this tutorial are available on GitHub, specifically under the Threejs-World-Tutorial repository. A link to the repository is provided in the video description.
Can I use Ready Player Me characters with this setup?
Yes, Ready Player Me characters can be used. However, ensure that the downloaded GLB files include morph targets for lip-sync functionality.

Related Questions

How does Conval enhance Reallusion characters?
Conval adds AI functionality, enabling Reallusion characters to converse, understand their environment, and perform dynamic actions in real-time. This creates more interactive and immersive experiences, suitable for games, virtual simulations, and more.
What steps are involved in preparing a Reallusion character for integration with Three.js?
The steps include creating or importing a character in Reallusion Character Creator, exporting the character as an FBX file, importing it into Blender for refinement, and finally exporting it as a GLTF 2.0 file for web compatibility.
How do React Three Fiber and Three.js contribute to this project?
React Three Fiber simplifies the integration of Three.js into React applications. Three.js, a JavaScript library, is used to create and display animated 3D computer graphics in a web browser. This combination allows for the development of interactive 3D environments that run smoothly in web browsers.
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