@inproceedings{Lum:2001:NPR,
  opteditor = {},
  optnote = {},
  optaddress = {},
  optorganization = {},
  author = {Eric B. Lum and Kwan-Liu Ma},
  optkey = {},
  optannote = {},
  optseries = {},
  localfile = {papers/Lum.2001.NPR.pdf},
  optpublisher = {},
  doi = {http://dx.doi.org/10.1109/PCCGA.2001.962888},
  optmonth = {},
  citeseer = {http://citeseer.nj.nec.com/486207.html},
  optcrossref = {},
  booktitle = {Proceedings of Pacific Graphics 2001},
  optstatus = {doi editor publisher address},
  optvolume = {},
  optnumber = {},
  title = {{N}on-{P}hotorealistic {R}endering using {W}atercolor {I}nspired
           {T}extures and {I}llumination},
  abstract = {In this paper, we present a watercolor inspired method for the
              rendering of surfaces. Our approach mimics the watercolor process
              by building up an illuminated scene through the compositing of
              several layers of semitransparent paint. The key steps consist of
              creating textures for each layer using LIC of Perlin Noise, and
              then calculating the layer thickness distribution using an
              inverted subtractive lighting model. The resulting
              watercolor-style images have color coherence that results from the
              mixing of a limited palette of paints. The new lighting model
              helps to better convey large shape changes, while texture
              orientations give hints of less dominant features. The rendered
              images therefore possess perceptual clues to more effectively
              communicate shape and texture information.},
  year = {2001},
  pages = {322--331},
}