Large Material Gaussian Model for Relightable 3D Generation

• URL: http://arxiv.org/abs/2509.22112v1
• Date: Fri, 26 Sep 2025 09:35:12 GMT
• Title: Large Material Gaussian Model for Relightable 3D Generation
• Authors: Jingrui Ye, Lingting Zhu, Runze Zhang, Zeyu Hu, Yingda Yin, Lanjiong Li, Lequan Yu, Qingmin Liao,
• Abstract summary: We introduce a novel framework designed to generate high-quality 3D content with Physically Based Rendering (PBR) materials.<n>Our method not only exhibit greater visual appeal compared to baseline methods but also enhance material modeling, thereby enabling practical downstream rendering applications.
• Score: 54.10879517395551
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The increasing demand for 3D assets across various industries necessitates efficient and automated methods for 3D content creation. Leveraging 3D Gaussian Splatting, recent large reconstruction models (LRMs) have demonstrated the ability to efficiently achieve high-quality 3D rendering by integrating multiview diffusion for generation and scalable transformers for reconstruction. However, existing models fail to produce the material properties of assets, which is crucial for realistic rendering in diverse lighting environments. In this paper, we introduce the Large Material Gaussian Model (MGM), a novel framework designed to generate high-quality 3D content with Physically Based Rendering (PBR) materials, ie, albedo, roughness, and metallic properties, rather than merely producing RGB textures with uncontrolled light baking. Specifically, we first fine-tune a new multiview material diffusion model conditioned on input depth and normal maps. Utilizing the generated multiview PBR images, we explore a Gaussian material representation that not only aligns with 2D Gaussian Splatting but also models each channel of the PBR materials. The reconstructed point clouds can then be rendered to acquire PBR attributes, enabling dynamic relighting by applying various ambient light maps. Extensive experiments demonstrate that the materials produced by our method not only exhibit greater visual appeal compared to baseline methods but also enhance material modeling, thereby enabling practical downstream rendering applications.

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