@article{Sousa:1999:CGP,
  number = {3},
  month = sep,
  optnote = {},
  optorganization = {Eurographics},
  author = {Sousa, Mario Costa and John W. Buchanan},
  optkey = {},
  optannote = {},
  optseries = {},
  editor = {Pere Brunet and Roberto Scopigno},
  address = {Oxford},
  localfile = {papers/Sousa.1999.CGP.pdf},
  publisher = {NCC Blackwell Ltd},
  doi = {http://dx.doi.org/10.1111/1467-8659.00340},
  optmonth = {},
  journal = EUROGRAPHICS1999,
  citeseer = {http://citeseer.nj.nec.com/258763.html},
  volume = {18},
  optcrossref = {},
  booktitle = {Proceedings of EuroGraphics'99 (Milano, Italy, sep1999)},
  optstatus = {doi},
  title = {{C}omputer-{G}enerated {G}raphite {P}encil {R}endering of 3{D}
           {P}olygonal {M}odels},
  abstract = {Researchers in no-photorealistic rendering have investigated the
              display of three-dimensional worlds using the various display
              models. In particular, recent work has focused on the modeling of
              traditional artistic media and styles such as pen-and-ink
              illustration and watercolor painting. By providing 3D rendering
              systems that use these alternative display models users can
              generate traditional illustration renderings of their
              three-dimensional worlds. In this paper we present our graphite
              pencil 3D renderer. We have broken the problem of simulating
              pencil drawing down into four fundamental parts: (1) simulating
              the drawing materials (graphite pencil and drawing paper, blenders
              and kneaded eraser), (2) modeling the drawing primitives
              (individual pencil strokes and mark-making to create tones and
              textures), (3) simulating the basic rendering techniques used by
              artists and illustrators familiar with pencil rendering, and (4)
              modeling the control of the drawing composition. Each part builds
              upon the others and is essential to developing the framework for
              higher-level rendering methods and tools. In this paper we present
              parts 2, 3 and 4 of our research. We present non-photorealistic
              graphite pencil rendering methods for outlining and shading. We
              also present the control of drawing steps from preparatory
              sketches to finished rendering results. We demonstrate the
              capabilities of our approach with a variety of images generated
              from 3D models.},
  year = {1999},
  pages = {195--207},
}