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