XField Tracer of Reliable Feature-Line Driven Quad-Remeshing

Nico Pietroni, Stefano Nuvoli, Thomas Alderighi, Paolo Cignoni, Marco Tarini
SIGGRAPH 2021

This are the core methods for tracing in the Siggraph 2021 paper "Reliable Feature-Line Driven Quad-Remeshing" Website: https://www.quadmesh.cloud/
DOI: 10.1145/3450626.3459941 ACM Transactions on Graphics (SIGGRAPH), 2021

BibTex

@article{10.1145/3450626.3459941,
author = {Pietroni, Nico and Nuvoli, Stefano and Alderighi, Thomas and Cignoni, Paolo and Tarini, Marco},
title = {Reliable Feature-Line Driven Quad-Remeshing},
year = {2021},
issue_date = {August 2021},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
volume = {40},
number = {4},
issn = {0730-0301},
url = {https://doi.org/10.1145/3450626.3459941},
doi = {10.1145/3450626.3459941},
abstract = {We present a new algorithm for the semi-regular quadrangulation of an input surface, driven by its line features, such as sharp creases. We define a perfectly feature-aligned cross-field and a coarse layout of polygonal-shaped patches where we strictly ensure that all the feature-lines are represented as patch boundaries. To be able to consistently do so, we allow non-quadrilateral patches and T-junctions in the layout; the key is the ability to constrain the layout so that it still admits a globally consistent, T-junction-free, and pure-quad internal tessellation of its patches. This requires the insertion of additional irregular-vertices inside patches, but the regularity of the final-mesh is safeguarded by optimizing for both their number and for their reciprocal alignment. In total, our method guarantees the reproduction of feature-lines by construction, while still producing good quality, isometric, pure-quad, conforming meshes, making it an ideal candidate for CAD models. Moreover, the method is fully automatic, requiring no user intervention, and remarkably reliable, requiring little assumptions on the input mesh, as we demonstrate by batch processing the entire Thingi10K repository, with less than 0.5% of the attempted cases failing to produce a usable mesh.},
journal = {ACM Trans. Graph.},
month = {jul},
articleno = {155},
numpages = {17},
keywords = {geometry processing, quad-meshing, modelling}
}

Download

git clone --recursive https://github.com/nicopietroni/xfield_tracer

Build

The tracer is header only and use only the VCG library

License

GPL3 licensed (FAQ)