SQuadGen: Generating Simple Quad Layouts via Chart Distance Fields

Fuente: arXiv
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Autores principales: Kong, Youkang, Liu, Yang, Dong, Yue, Tong, Xin, Shum, Heung-Yeung
Formato: Preprint
Publicado: 2026
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author Kong, Youkang
Liu, Yang
Dong, Yue
Tong, Xin
Shum, Heung-Yeung
author_facet Kong, Youkang
Liu, Yang
Dong, Yue
Tong, Xin
Shum, Heung-Yeung
contents 3D shapes from scanning, reconstruction, or AI-generated content often lack simple quad mesh layouts -- critical for efficient editing and modeling. Existing quad-remeshing techniques typically produce complex layouts with irregular loops, leading to tedious manual cleanup and extensive algorithm tuning. We introduce SQuadGen, a diffusion-based generative framework that leverages Chart Distance Fields (CDF) to synthesize simple quad layouts on 3D shapes. Our approach addresses two key challenges: (1) the discrete nature of mesh connectivity, which hinders learning, and (2) the scarcity of large-scale datasets with simple quad meshes. To overcome the first, we propose CDF, a continuous surface-based representation enabling effective learning and synthesis of quad layouts. To address the second, we define loop-aware simplicity metrics and construct a large-scale dataset of high-quality quad layouts recovered from public 3D repositories through a robust quad-recovery pipeline. Extensive evaluations across diverse 3D inputs show that SQuadGen consistently outperforms existing methods, producing robust, artist-friendly simple quad layouts.
format Preprint
id arxiv_https___arxiv_org_abs_2604_27329
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle SQuadGen: Generating Simple Quad Layouts via Chart Distance Fields
Kong, Youkang
Liu, Yang
Dong, Yue
Tong, Xin
Shum, Heung-Yeung
Graphics
Computer Vision and Pattern Recognition
3D shapes from scanning, reconstruction, or AI-generated content often lack simple quad mesh layouts -- critical for efficient editing and modeling. Existing quad-remeshing techniques typically produce complex layouts with irregular loops, leading to tedious manual cleanup and extensive algorithm tuning. We introduce SQuadGen, a diffusion-based generative framework that leverages Chart Distance Fields (CDF) to synthesize simple quad layouts on 3D shapes. Our approach addresses two key challenges: (1) the discrete nature of mesh connectivity, which hinders learning, and (2) the scarcity of large-scale datasets with simple quad meshes. To overcome the first, we propose CDF, a continuous surface-based representation enabling effective learning and synthesis of quad layouts. To address the second, we define loop-aware simplicity metrics and construct a large-scale dataset of high-quality quad layouts recovered from public 3D repositories through a robust quad-recovery pipeline. Extensive evaluations across diverse 3D inputs show that SQuadGen consistently outperforms existing methods, producing robust, artist-friendly simple quad layouts.
title SQuadGen: Generating Simple Quad Layouts via Chart Distance Fields
topic Graphics
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2604.27329