@inproceedings{556cd56937fa4f29bc89e1ee94135fdc,
title = "Algebraic Smooth Occluding Contours",
abstract = "Computing occluding contours is a key step in 3D non-photorealistic rendering, but producing smooth contours with consistent visibility has been a notoriously-challenging open problem. This paper describes the first general-purpose smooth surface construction for which the occluding contours can be computed in closed form. Given an input mesh and camera viewpoint, we show how to approximate the mesh with a G1 piecewise-quadratic surface, for which the occluding contours are piecewise-rational curves in image-space. We show that this method produces smooth contours with consistent visibility much more efficiently than the state-of-the-art.",
keywords = "contours, non-photorealistic rendering, piecewise-quadratic surface, visibility",
author = "Ryan Capouellez and Jiacheng Dai and Aaron Hertzmann and Denis Zorin",
note = "Publisher Copyright: {\textcopyright} 2023 ACM.; 2023 Special Interest Group on Computer Graphics and Interactive Techniques Conference, SIGGRAPH 2023 ; Conference date: 06-08-2023 Through 10-08-2023",
year = "2023",
month = jul,
day = "23",
doi = "10.1145/3588432.3591547",
language = "English (US)",
series = "Proceedings - SIGGRAPH 2023 Conference Papers",
publisher = "Association for Computing Machinery, Inc",
editor = "Spencer, {Stephen N.}",
booktitle = "Proceedings - SIGGRAPH 2023 Conference Papers",
}