@inproceedings{Praun:2001:RTH,
  optnote = {},
  author = {Emil Praun and Hughes Hoppe and Matthew Webb and Adam Finkelstein},
  optkey = {},
  series = CGPACS,
  optannote = {},
  editor = {Eugene Fiume},
  address = {New York},
  optpublisher = {},
  localfile = {papers/Praun.2001.RTH.pdf},
  organization = {ACM SIGGRAPH},
  doi = {http://doi.acm.org/10.1145/383259.383328},
  optmonth = {},
  citeseer = {http://citeseer.nj.nec.com/praun01realtime.html},
  optcrossref = {},
  booktitle = SIGGRAPH2001,
  optstatus = {OK},
  optvolume = {},
  optnumber = {},
  title = {{R}eal-{T}ime {H}atching},
  abstract = {Drawing surfaces using hatching strokes simultaneously conveys
              material, tone, and form. We present a real-time system for
              nonphotorealistic rendering of hatching strokes over arbitrary
              surfaces. During an automatic preprocess, we construct a sequence
              of mipmapped hatch images corresponding to different tones,
              collectively called a tonal art map. Strokes within the hatch
              images are scaled to attain appropriate stroke size and density at
              all resolutions, and are organized to maintain coherence across
              scales and tones. At runtime, hardware multitexturing blends the
              hatch images over the rendered faces to locally vary tone while
              maintaining both spatial and temporal coherence. To render strokes
              over arbitrary surfaces, we build a lapped texture parametrization
              where the overlapping patches align to a curvature-based direction
              field. We demonstrate hatching strokes over complex surfaces in a
              variety of styles.},
  year = {2001},
  pages = {581--586},
}