LIU, Chenxi; BÉNARD, Pierre; HERTZMANN, Aaron; HOSHYARI, Shayan

doi:10.1145/3544778

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LIU, Chenxi
University of British Columbia [Canada] [UBC]

BÉNARD, Pierre
Melting the frontiers between Light, Shape and Matter [MANAO]

HERTZMANN, Aaron
Adobe Research

Langue

Article de revue

Ce document a été publié dans

ACM Transactions on Graphics. 2023-01-19, vol. 42, n° 1, p. 16

Association for Computing Machinery

Résumé en anglais

This paper proposes a method for computing the visible occluding contours of subdivision surfaces. The paper first introduces new theory for contour visibility of smooth surfaces. Necessary and sufficient conditions are introduced for when a sampled occluding contour is valid, that is, when it may be assigned consistent visibility. Previous methods do not guarantee these conditions, which helps explain why smooth contour visibility has been such a challenging problem in the past. The paper then proposes an algorithm that, given a subdivision surface, finds sampled contours satisfying these conditions, and then generates a new triangle mesh matching the given occluding contours. The contours of the output triangle mesh may then be rendered with standard non-photorealistic rendering algorithms, using the mesh for visibility computation. The method can be applied to any triangle mesh, by treating it as the base mesh of a subdivision surface.< Réduire

Mots clés en anglais

Non-photorealistic rendering

Occluding Contours

Geometry processing

URI

https://oskar-bordeaux.fr/handle/20.500.12278/181438

DOI

http://dx.doi.org/10.1145/3544778

Project ANR

Stylisation du mouvement pour l'animation 2D - ANR-20-CE33-0002

Origine

Importé de hal

Unités de recherche

Laboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298