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[GTD+04]  Programmable Style for NPR Line Drawing

Grabli:2004:PSN (In proceedings)
Author(s)Grabli S., Turquin E., Durand F. and Sillion F.
Title« Programmable Style for NPR Line Drawing »
InRendering Techniques 2004, Proceedings of the Eurographics Symposium on Rendering 2004 (Norrköping, Sweden, June 21--23, 2004)
Editor(s)Alexander Keller and Henrik Wann Jensen
Page(s)33--44, 407
Year2004
PublisherEUROGRAPHICS
AddressAire-la-Ville, Switzerland
URLhttp://artis.imag.fr/Software/Freestyle/
Editor(s)Alexander Keller and Henrik Wann Jensen

Abstract
This paper introduces a programmable approach to non-photorealistic line drawing from 3D models, inspired by programmable shaders in traditional rendering. We propose a new image creation model where all operations are controlled through user-defined procedures. A view map describing all relevant support lines in the drawing and their topological arrangement is first created from the 3D model; a number of style modules operate on this map, by procedurally selecting, chaining or splitting lines, before creating strokes and assigning drawing attributes. The resulting drawing system permits flexible control of all elements of drawing style: first, different style modules can be applied to different types of lines in a view; second, the topology and geometry of strokes are entirely controlled from the programmable modules; and third, stroke attributes are assigned procedurally and can be correlated at will with various scene or view properties. Finally, we propose new density control strategies where strokes can be adapted or omitted to avoid visual clutter. We illustrate the components of our system and show how style modules successfully capture stylized visual characteristics that can be applied across a wide range of models.

BibTeX code
@inproceedings{Grabli:2004:PSN,
  www = {http://artis.imag.fr/Publications/2004/GTDS04/},
  optnote = {},
  optorganization = {},
  author = {St{\'{e}}phane Grabli and Emmanuel Turquin and Fr{\'{e}}do Durand
            and Fran{\c{c}}ois X. Sillion},
  optkey = {},
  optseries = {},
  editor = {Alexander Keller and Henrik Wann Jensen},
  url = {http://artis.imag.fr/Software/Freestyle/},
  address = EGAdr,
  localfile = {papers/Grabli.2004.PSN.pdf},
  publisher = EGPub,
  optmonth = {},
  optdoi =
            {http://www.eg.org/EG/DL/WS/EGWR/EGSR04/033-044.pdf.abstract.pdf;internal&action=paperabstract.action},
  optcrossref = {},
  booktitle = {Rendering Techniques 2004, Proceedings of the Eurographics
               Symposium on Rendering 2004 (Norrk{\"o}ping, Sweden, June 21--23,
               2004)},
  optvolume = {},
  optnumber = {},
  abstract = {This paper introduces a programmable approach to
              non-photorealistic line drawing from 3D models, inspired by
              programmable shaders in traditional rendering. We propose a new
              image creation model where all operations are controlled through
              user-defined procedures. A view map describing all relevant
              support lines in the drawing and their topological arrangement is
              first created from the 3D model; a number of style modules operate
              on this map, by procedurally selecting, chaining or splitting
              lines, before creating strokes and assigning drawing attributes.
              The resulting drawing system permits flexible control of all
              elements of drawing style: first, different style modules can be
              applied to different types of lines in a view; second, the
              topology and geometry of strokes are entirely controlled from the
              programmable modules; and third, stroke attributes are assigned
              procedurally and can be correlated at will with various scene or
              view properties. Finally, we propose new density control
              strategies where strokes can be adapted or omitted to avoid visual
              clutter. We illustrate the components of our system and show how
              style modules successfully capture stylized visual characteristics
              that can be applied across a wide range of models.},
  title = {{P}rogrammable {S}tyle for {NPR} {L}ine {D}rawing},
  year = {2004},
  pages = {33--44, 407},
}

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