Subdivision shading

Marc Alexa, Tamy Boubekeur

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The idea of Phong Shading is applied to subdivision surfaces: normals are associated with vertices and the same construction is used for both locations and normals. This creates vertex positions and normals. The vertex normals are smoother than the normals of the subdivision surface and using vertex normals for shading attenuates the well known visual artifacts of many subdivision schemes. We demonstrate how to apply subdivision to normals and how blend and combine different normals for achieving a variety of effects.

Original languageEnglish
Title of host publicationACM SIGGRAPH Asia 2008 Papers, SIGGRAPH Asia'08
Publication statusPublished - 1 Dec 2008
Externally publishedYes
EventACM SIGGRAPH Asia 2008 Papers, SIGGRAPH Asia 2008 - Singapore, Singapore
Duration: 10 Dec 200813 Dec 2008

Publication series

NameACM SIGGRAPH Asia 2008 Papers, SIGGRAPH Asia'08

Conference

ConferenceACM SIGGRAPH Asia 2008 Papers, SIGGRAPH Asia 2008
Country/TerritorySingapore
CitySingapore
Period10/12/0813/12/08

Keywords

  • Irregular vertices
  • Shading
  • Subdivision
  • Visual quality

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