FreeMesh: Boosting Mesh Generation with Coordinates Merging
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arXiv
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866910955137400832 |
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| author | Liu, Jian Weng, Haohan Lei, Biwen Yang, Xianghui Zhao, Zibo Chen, Zhuo Guo, Song Han, Tao Guo, Chunchao |
| author_facet | Liu, Jian Weng, Haohan Lei, Biwen Yang, Xianghui Zhao, Zibo Chen, Zhuo Guo, Song Han, Tao Guo, Chunchao |
| contents | The next-coordinate prediction paradigm has emerged as the de facto standard in current auto-regressive mesh generation methods. Despite their effectiveness, there is no efficient measurement for the various tokenizers that serialize meshes into sequences. In this paper, we introduce a new metric Per-Token-Mesh-Entropy (PTME) to evaluate the existing mesh tokenizers theoretically without any training. Building upon PTME, we propose a plug-and-play tokenization technique called coordinate merging. It further improves the compression ratios of existing tokenizers by rearranging and merging the most frequent patterns of coordinates. Through experiments on various tokenization methods like MeshXL, MeshAnything V2, and Edgerunner, we further validate the performance of our method. We hope that the proposed PTME and coordinate merging can enhance the existing mesh tokenizers and guide the further development of native mesh generation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_13573 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | FreeMesh: Boosting Mesh Generation with Coordinates Merging Liu, Jian Weng, Haohan Lei, Biwen Yang, Xianghui Zhao, Zibo Chen, Zhuo Guo, Song Han, Tao Guo, Chunchao Graphics Artificial Intelligence The next-coordinate prediction paradigm has emerged as the de facto standard in current auto-regressive mesh generation methods. Despite their effectiveness, there is no efficient measurement for the various tokenizers that serialize meshes into sequences. In this paper, we introduce a new metric Per-Token-Mesh-Entropy (PTME) to evaluate the existing mesh tokenizers theoretically without any training. Building upon PTME, we propose a plug-and-play tokenization technique called coordinate merging. It further improves the compression ratios of existing tokenizers by rearranging and merging the most frequent patterns of coordinates. Through experiments on various tokenization methods like MeshXL, MeshAnything V2, and Edgerunner, we further validate the performance of our method. We hope that the proposed PTME and coordinate merging can enhance the existing mesh tokenizers and guide the further development of native mesh generation. |
| title | FreeMesh: Boosting Mesh Generation with Coordinates Merging |
| topic | Graphics Artificial Intelligence |
| url | https://arxiv.org/abs/2505.13573 |