@inproceedings{Majumder:2002:HAR,
  optnote = {},
  optorganization = {},
  author = {Aditi Majumder and Meenakshisundaram Gopi},
  optkey = {},
  optannote = {},
  optseries = {},
  editor = {Adam Finkelstein},
  address = {New York},
  localfile = {papers/Majumder.2002.HAR.pdf},
  publisher = {ACM Press},
  doi = {http://doi.acm.org/10.1145/508530.508541},
  optmonth = {},
  citeseer = {http://citeseer.nj.nec.com/majumder02hardware.html},
  optcrossref = {},
  booktitle = NPAR2002,
  optstatus = {OK},
  optvolume = {},
  optnumber = {},
  title = {{H}ardware-{A}ccelerated {R}eal {T}ime {C}harcoal {R}endering},
  abstract = {In this paper, we present simple rendering techniques implemented
              using traditional graphics hardware to achieve the effects of
              charcoal drawing. The effects include characteristics of charcoal
              drawings like broad grainy strokes and smooth tonal variations
              that are achieved by smudging the charcoal by hand. Further, we
              also generate the closure effect that is used by artists at times
              to avoid hard silhouette edges. All these effects are achieved
              using contrast enhancement operators on textures and/or colors of
              the 3D model.Our contribution lies in unifying the methods to
              achieve these effects under the common framework of contrast
              enhancement operators. Further, since the effects have been
              implemented using traditional graphics hardware, a single
              rendering pass is sufficient to create different effects. Hence,
              we can render highly complex models with large number of triangles
              at interactive rates. Thus, our method is especially suited for
              applications like scientific visualization and preliminary
              sketches/animations. },
  year = {2002},
  pages = {59--66},
}