Proceedings: GI 1996

A complete treatment of D1 discontinuities in a discontinuity mesh

Sherif Ghali, James Stewart

Proceedings of Graphics Interface '96: Toronto, Ontario, Canada, 22 - 24 May 1996, 122-131

DOI 10.20380/GI1996.15

  • BibTeX

    @inproceedings{GhaliStewart-gi96,
     title = {A complete treatment of D1 discontinuities in a discontinuity mesh},
     author = {Sherif Ghali and James Stewart},
     booktitle = {Proceedings of the Graphics Interface 1996 Conference, May 22-24, 1996, Toronto, Ontario, Canada},
     year = {1996},
     month = {May},
     isbn = {0-9695338-5-3},
     publisher = {Canadian Human-Computer Communications Society},
     url = {http://graphicsinterface.org/wp-content/uploads/gi1996-15.pdf},
     pages = {122--131}
    }
    

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.