Robust Watertight Manifold Surface Generation Method for ShapeNet Models

Jingwei Huang , Hao Su , Leonidas Guibas

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classification 💻 cs.CG

keywords manifoldmeshmodelsshapenetsurfaceverticesalgorithmgeneration

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In this paper, we describe a robust algorithm for 2-Manifold generation of various kinds of ShapeNet Models. The input of our pipeline is a triangle mesh, with a set of vertices and triangular faces. The output of our pipeline is a 2-Manifold with vertices roughly uniformly distributed on the geometry surface. Our algorithm uses an octree to represent the original mesh, and construct the surface by isosurface extraction. Finally, we project the vertices to the original mesh to achieve high precision. As a result, our method can be adopted efficiently to all ShapeNet models with the guarantee of correct 2-Manifold topology.

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TripoSG: High-Fidelity 3D Shape Synthesis using Large-Scale Rectified Flow Models
cs.CV 2025-02 unverdicted novelty 6.0

TripoSG generates high-fidelity 3D meshes from input images via a large-scale rectified flow transformer and hybrid-trained 3D VAE on a custom 2-million-sample dataset, claiming state-of-the-art fidelity and generalization.