Partial visibility for stylized lines

Forrester Cole, Adam Finkelstein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations

Abstract

A variety of non-photorealistic rendering styles include lines extracted from 3D models. Conventional visibility algorithms make a binary decision for each line fragment, usually by a depth test against the polygons of the model. This binary visibility test produces aliasing where lines are partially obscured by polygons or other lines. Such aliasing artifacts are particularly objectionable in animations and where lines are drawn with texture and other styl-ization effects. We introduce a method for anti-aliasing the line visibility test by supersampling, analogous to anti-aliasing for polygon rendering. Our visibility test is inexpensive using current graphics hardware and produces partial visibility that largely ameliorates objectionable aliasing artifacts. In addition, we introduce a method analogous to depth peeling that further addresses artifacts where lines obscure other lines.

Original languageEnglish (US)
Title of host publicationProceedings NPAR 2008 - 6th International Symposium on Non-Photorealistic Animation and Rendering
Pages9-13
Number of pages5
DOIs
StatePublished - Dec 15 2008
Event6th International Symposium on Non-photorealistic Animation and Rendering 2008, NPAR 2008 - Annecy, France
Duration: Jun 9 2008Jun 11 2008

Publication series

NameNPAR Symposium on Non-Photorealistic Animation and Rendering

Other

Other6th International Symposium on Non-photorealistic Animation and Rendering 2008, NPAR 2008
CountryFrance
CityAnnecy
Period6/9/086/11/08

All Science Journal Classification (ASJC) codes

  • Applied Mathematics
  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Modeling and Simulation

Keywords

  • Hidden line removal
  • Line drawing
  • NPR
  • Visibility

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  • Cite this

    Cole, F., & Finkelstein, A. (2008). Partial visibility for stylized lines. In Proceedings NPAR 2008 - 6th International Symposium on Non-Photorealistic Animation and Rendering (pp. 9-13). (NPAR Symposium on Non-Photorealistic Animation and Rendering). https://doi.org/10.1145/1377980.1377985