GaussianFluent：面向混合材质动态场景的高斯仿真
GaussianFluent: Gaussian Simulation for Dynamic Scenes with Mixed Materials
把 3DGS 从静态外观表示扩展为可仿真的动态物体状态，用生成模型补全高斯体内部纹理、用 CD-MPM 驱动脆性断裂，为需要物理一致动态场景的渲染与交互（VR、机器人）提供可复用管线。
原文依据 the lack of volumetric interiors with coherent textures in GS representation, and the absence of fracture-aware simulation methods for Gaussians
摘要译文
由模型翻译 · 术语统一 · 请对照原文核对关键结论3D 高斯泼溅（3DGS）已成为实现高保真、实时渲染的重要三维表示。已有工作将物理仿真与高斯相结合，但主要面向柔软、可形变的材质，脆性断裂问题基本尚未解决。这源于两个关键障碍：高斯表示缺乏具有连贯纹理的体内部结构，以及缺少面向高斯的断裂感知仿真方法。为应对这些挑战，我们提出 GaussianFluent，一个用于动态物体状态的真实感仿真与渲染的统一框架。首先，它借助生成模型引导内部高斯的致密化，合成照片级真实的内部结构。其次，它集成经过优化的连续损伤物质点法（CD-MPM），以极高速度实现脆性断裂仿真。我们的方法能够处理包括混合材质物体与多阶段断裂扩展在内的复杂场景，取得此前方法无法实现的结果。实验清楚表明，GaussianFluent 具备照片级真实、实时渲染且内部结构一致的能力，凸显了其在 VR 与机器人等下游应用中的潜力。
英文原文摘要 1236 字符
3D Gaussian Splatting (3DGS) has emerged as a prominent 3D representation for high-fidelity and real-time rendering. Prior work has coupled physics simulation with Gaussians, but predominantly targets soft, deformable materials, leaving brittle fracture largely unresolved. This stems from two key obstacles: the lack of volumetric interiors with coherent textures in GS representation, and the absence of fracture-aware simulation methods for Gaussians. To address these challenges, we introduce GaussianFluent, a unified framework for realistic simulation and rendering of dynamic object states. First, it synthesizes photorealistic interiors by densifying internal Gaussians guided by generative models. Second, it integrates an optimized Continuum Damage Material Point Method (CD-MPM) to enable brittle fracture simulation at remarkably high speed. Our approach handles complex scenarios including mixed-material objects and multi-stage fracture propagation, achieving results infeasible with previous methods. Experiments clearly demonstrate GaussianFluent's capability for photo-realistic, real-time rendering with structurally consistent interiors, highlighting its potential for downstream application, such as VR and Robotics.