Phong-Rodrigues

Phong-Rodrigues Extrinsic Vector-Field Processing

arXiv:2601.10621v2 Announce Type: replace Abstract: We introduce a new extrinsic discretization of tangent vector fields on triangle meshes that is continuous, with bounded derivatives that are continuous almost everywhere, supporting pointwise evaluation and integration of differential operators. We achieve this by building a continuous normal field over the mesh via Phong interpolation and using minimal Rodrigues rotations to transport vertex-based tangent vectors into triangle interiors....