Spatialized Normal Cone Hierarchies
David E. Johnson, Elaine Cohen
Symposium on Interactive 3D Graphics, March 2001, pp. 129--134.
Abstract: We develop a data structure, the spatialized normal cone hierarchy, and apply it to interactive solutions for model silhouette extraction, local minimum distance computations, and area light source shadow umbra and penumbra boundary determination. The latter applications extend the domain of surface normal encapsulation from problems described by a point and a model to problems involving two models.
Keyword(s): Collision Detection, Computational Geometry, Non-Realistic Rendering, Shadow Algorithms
@inproceedings{Johnson:2001:SNC,
author = {David E. Johnson and Elaine Cohen},
title = {Spatialized Normal Cone Hierarchies},
booktitle = {Symposium on Interactive 3D Graphics},
pages = {129--134},
month = mar,
year = {2001},
}
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