GI'96 Online Papers

A complete treatment of D1 discontinuities in a discontinuity mesh

Sherif Ghali and James Stewart

Abstract

This paper presents a treatment of first-order discontinuities (D1) that arise in discontinuity meshes. An algorithm is described that, given a planar D1 discontinuity surface in a polyhedral scene, computes the corresponding discontinuity curves on the faces of the scene. A method is described to efficiently update the backprojection across a D1 discontinuity curve. An alternative update method is presented which is novel and numerically robust.

Keywords: D1 discontinuity, discontinuity meshing, shadows, radiosity, global illumination

The Paper

@inproceedings{GhaliStewart-gi96,
  title     = "A complete treatment of D1 discontinuities in a
               discontinuity mesh",
  author    = "Sherif Ghali and James Stewart",
  booktitle = "Graphics Interface",
  year      = "1996",
  month     = "May",
  pages     = "122--131"
}