@inproceedings{Hertzmann:2000:ISS,
  www =
         {http://mrl.nyu.edu/publications/illustrating-smooth/hertzmann-zorin.pdf},
  author = {Aaron Hertzmann and Denis Zorin},
  series = CGPACS,
  editor = {Judith R. Brown and Kurt Akeley},
  url = {http://mrl.nyu.edu/publications/illustrating-smooth/},
  optpublisher = {ACM Press},
  localfile = {papers/Hertzmann.2000.ISS.pdf},
  address = {New York},
  optmonth = aug,
  doi = {http://doi.acm.org/10.1145/344779.345074},
  organization = {ACM SIGGRAPH},
  citeseer = {http://citeseer.nj.nec.com/hertzmann00illustrating.html},
  booktitle = SIGGRAPH2000,
  optstatus = {OK},
  title = {{I}llustrating {S}mooth {S}urfaces},
  abstract = {We present a new set of algorithms for line-art rendering of
              smooth surfaces. We introduce an efficient, deterministic
              algorithm for finding silhouettes based on geometric duality, and
              an algorithm for segmenting the silhouette curves into smooth
              parts with constant visibility. These methods can be used to find
              all silhouettes in real time in software. We present an automatic
              method for generating hatch marks in order to convey surface
              shape. We demonstrate these algorithms with a drawing style
              inspired by A Topological Picturebook by G. Francis.},
  pages = {517--526},
  year = {2000},
}