Minimum Triangle Separation for Correct Z-Buffer Occlusion

Akeley, Kurt; Su, Jonathan

Minimum Triangle Separation for Correct Z-Buffer Occlusion

Files

027-030.pdf (3.5 MB)

Date

2006

Authors

Akeley, Kurt
Su, Jonathan

Publisher

The Eurographics Association

Abstract

We show that, and how, window coordinate precision (the representations of xwin and ywin), field of view, and error accumulated by single-precision mapping arithmetic contribute to, and sometimes dominate, effective zbuffer resolution. Our results are developed analytically, then verified through simulation. Using our approach system designers can allocate numeric precision more efficiently, and programmers can more confidently predict the minimum triangle-to-triangle separation required to ensure correct z-buffer occlusion.

        @inproceedings{:10.2312/EGGH/EGGH06/027-030
,
booktitle = {Graphics Hardware
},
editor = {Marc Olano and Philipp Slusallek
},
title = {{Minimum Triangle Separation for Correct Z-Buffer Occlusion
}},
author = {Akeley, Kurt and 
Su, Jonathan
},
year = {2006
},
publisher = {The Eurographics Association
},
ISSN = {1727-3471
},
ISBN = {3-905673-37-1
},
DOI = {/10.2312/EGGH/EGGH06/027-030
}
}