用物理仿真确保生成的3D模型既美观又可打印
MechStyle: Augmenting Generative AI with Mechanical Simulation to Create Stylized and Structurally Viable 3D Models
- 结合生成式AI与有限元分析反馈，动态调整风格化修改
- 通过应力反馈机制避免高应力区过度变形，保障结构安全
- 适合需要兼顾美学与可制造性的工业设计与艺术创作
近期生成式AI技术使用户能基于文本提示对3D模型进行风格化。但此类方法改变模型几何结构，可能导致实物打印后结构失稳。本文提出MechStyle系统，通过在生成式风格化过程中引入有限元分析（FEA）仿真反馈，实现风格化与结构完整性并重。当风格化过程调整几何形态时，FEA实时检测高应力区域，并减少对这些区域的修改。我们通过对比三种控制策略评估了FEA反馈的有效性，并测试了三种自适应调度策略的时间效率。此外，展示了系统的用户界面及五个实际应用案例，验证其在生成美观且可打印3D模型方面的实用性。
原文摘要 · Abstract (English)
Recent developments in Generative AI enable creators to stylize 3D models based on text prompts. These methods change the 3D model geometry, which can compromise the model's structural integrity once fabricated. We present MechStyle, a system that enables creators to stylize 3D printable models while preserving their structural integrity. MechStyle accomplishes this by augmenting the Generative AI-based stylization process with feedback from a Finite Element Analysis (FEA) simulation. As the stylization process modifies the geometry to approximate the desired style, feedback from the FEA simulation reduces modifications to regions with increased stress. We evaluate the effectiveness of FEA simulation feedback in the augmented stylization process by comparing three stylization control strategies. We also investigate the time efficiency of our approach by comparing three adaptive scheduling strategies. Finally, we demonstrate MechStyle's user interface that allows users to generate stylized and structurally viable 3D models and provide five example applications.
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