Proceedings: GI 1999

An illustration technique using hardware-based intersections and skeletons

Oliver Deussen, Jörg Hamel, Andreas Raab, Stefan Schlechtweg, Thomas Strothotte

Proceedings of Graphics Interface '99: Kingston, Ontario, Canada, 2 - 4 June 1999, 175-182

DOI 10.20380/GI1999.23

  • BibTeX

     title = {An illustration technique using hardware-based intersections and skeletons},
     author = {Oliver Deussen and J{"{o}}rg Hamel and Andreas Raab and Stefan Schlechtweg and Thomas Strothotte},
     booktitle = {Proceedings of the Graphics Interface 1999 Conference, June 2-4, 1999, Kingston, Ontario, Canada},
     year = {1999},
     month = {June},
     pages = {175--182},
     url = {}


We present a method for generating line drawings of complex geometries in the style of crosshatched illustrations. Hatching lines are generated by intersecting the geometry with a set of planes. Half-toning on the basis of the generated curves is used to represent a given intensity distribution. Computing a geometric skeleton allows us to determine automatically the orientation of the intersection planes for a wide variety of models. By using predefined line styles different types of illustrations can be generated. Applications of the method are discussed, examples are given.