TENCENT(HK:00700) 量子位·2025-06-13 16:44Core Viewpoint - The article announces the open-source release of Tencent's 3D generation model, Hunyuan 3D 2.1, which emphasizes dual optimization in geometry and texture, enhancing the quality and realism of generated 3D models [1][5][32]. Group 1: Model Features - Hunyuan 3D 2.1 showcases significant improvements in texture mapping, achieving state-of-the-art (SOTA) quality among open-source 3D models [6][9]. - The model can generate various textures, including base color, metallicity, and roughness, and supports high-quality rendering of complex materials like leather, wood, metal, and ceramics [12][23]. - The model's detail and pattern complexity can reach a level suitable for collectible figurines [20]. Group 2: Technical Enhancements - The architecture of Hunyuan 3D 2.1 has been strengthened to decouple geometry and texture, optimizing detail modeling and mesh precision [22][23]. - The introduction of PBR (Physically Based Rendering) texture generation technology enhances visual consistency under different lighting conditions compared to traditional RGB texture techniques [23][27]. - In user blind tests, Hunyuan 3D 2.1's PBR textures outperformed RGB textures with a winning rate of 78% [26]. Group 3: Open Source and Accessibility - Hunyuan 3D 2.1 is fully open-sourced, providing model weights, training code, and data processing workflows, allowing developers to fine-tune and optimize the model [9][28]. - The model is compatible with consumer-grade graphics cards and comes with detailed deployment and usage tutorials for easy access by developers [29][30]. - Since its initial release, Hunyuan 3D has gained significant traction, with over 1.8 million downloads on the Hugging Face platform, indicating strong recognition among global developers [31].