Hunyuan3D 2.0 - A large-scale 3D asset generation system launched by Tencent.

What is Hunyuan3D 2.0?

Hunyuan3D 2.0 is a large-scale 3D asset generation system launched by Tencent, focusing on generating high-resolution 3D models from text and images. The system adopts a two-stage generation process: first, it generates a textureless geometric model, and then it synthesizes a high-resolution texture map. It includes two core components: Hunyuan3D-DiT (geometry generation model) and Hunyuan3D-Paint (texture synthesis model), which are used to generate accurate geometric structures and vivid and realistic textures, respectively.

Main features of Hunyuan3D 2.0

• High-resolution 3D model generationThe two-stage generation process first generates a textureless geometric model, and then synthesizes a texture map for it, effectively separating the complexity of shape and texture generation.
• High-quality generation effectIt outperforms existing open-source and closed-source models in terms of geometric detail, conditional alignment, and texture quality.
• Diverse usage methodsIt supports quick access via code calls, Grado apps, Blender plugins, and the official website.

Technical Principles of Hunyuan3D 2.0

• Two-stage generation processHunyuan3D 2.0 employs a two-stage generation strategy: first, geometry generation, then texture generation. This decoupling effectively separates the complexities of shape and texture generation, while providing flexible texture processing for generated or handcrafted geometric models.
• Geometric Generative Model (Hunyuan3D-DiT)Hunyuan3D-DiT is a flow-based diffusion model that generates geometric models that precisely match images with given conditions. It encodes 3D shapes into continuous latent codes using Hunyuan3D-ShapeVAE, and then trains the diffusion model based on two-stream and single-stream Transformer architectures.
• Texture generation model (Hunyuan3D-Paint)Hunyuan3D-Paint generates high-resolution and vivid texture maps for generated or handcrafted mesh models based on strong geometric and diffusion prior knowledge. It uses a multi-view diffusion generation scheme, combining geometric conditions (such as normal maps and position maps) to generate multi-view images, which are then baked into high-resolution textures.
• Performance optimizationHunyuan3D 2.0 excels in geometric detail, conditional alignment, and texture quality, surpassing existing open-source and closed-source models. Evaluation results show that it significantly outperforms other benchmark models in terms of generated quality.

Hunyuan3D 2.0 open source model

• Hunyuan3D-2mv This is a multi-view shape generation model open-sourced by Tencent Hunyuan 3D. The model focuses on generating high-quality 3D geometry through multi-view input, and is suitable for 3D creation that requires understanding a scene or object from multiple angles.
• Hunyuan3D-2miniThis is a simplified version of Hunyuan3D-2mv. While retaining core functionalities, it optimizes model size and computational efficiency, making it more suitable for lightweight applications.
• Hunyuan3D-DiT-v2-0This is a large-scale geometry generation model used to generate high-fidelity, textureless geometric models from images. It is built using a flow-diffusion-based model that generates geometry that precisely matches the input image. The model has 2.6 billion parameters.
• Hunyuan3D-Paint-v2-0This is a large-scale texture generation model used to generate high-resolution and realistic texture maps for generated geometry or handcrafted meshes. The model has 1.3 billion parameters.
• Hunyuan3D-Delight-v2-0: is an image delighting model used to convert an input image into a state without light and shadow, generating a texture map with invariant lighting.
• Hunyuan3D-DiT-v2-0-FastThis is an accelerated version of the geometry generation model, which reduces inference time by half through guided distillation technology, making it suitable for scenarios with higher requirements for generation speed.

Hunyuan3D 2.0 project address

• Project official website:3d-models.hunyuan.tencent.com
• Github repository:https://github.com/Tencent/Hunyuan3D-2
• HuggingFace model library:https://huggingface.co/tencent/Hunyuan3D-2

Application Scenarios of Hunyuan3D 2.0

• Game developmentHunyuan3D 2.0 can significantly improve the efficiency of game development. Through geometry and texture generation models, it can quickly generate high-quality 3D game assets, such as characters, props, and scenes.
• UGC Social and Content CreationHunyuan3D 2.0 supports user-generated content (UGC), allowing users to quickly generate personalized 3D models, such as personal 3D avatars and virtual gifts, using text descriptions, images, or sketches.
• E-commerce and advertisingIn the e-commerce field, Hunyuan3D 2.0 can quickly generate high-precision 3D product models from product images for online display and interaction, thereby improving the user experience.
• Industrial Manufacturing and DesignHunyuan3D 2.0 can quickly generate 3D industrial product prototypes from design sketches or concept drawings for design verification and demonstration. The generated models support multiple formats (such as STL, USDZ, etc.) and can be seamlessly integrated with 3D printing tools.
• Map NavigationTencent Maps has launched a custom 3D navigation car icon feature based on Hunyuan3D 2.0, improving creation efficiency by 91%. The feature allows users to generate personalized 3D car icons according to their preferences, enriching the visual experience of map navigation.
• Education and Scientific ResearchHunyuan3D 2.0 provides open-source models and code, facilitating teaching and research for educators and researchers. It can be used to develop educational tools to help students better understand and practice 3D modeling.