Graphics (TOG)


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ACM Transactions on Graphics (TOG), Volume 18 Issue 4, Oct. 1999

Modeling generalized cylinders via Fourier morphing
Alberto S. Aguado, Eugenia Montiel, Ed Zaluska
Pages: 293-315
DOI: 10.1145/337680.337683
Generalized cylinders provide a compact representation for modeling many components of natural objects as well as a great variety of human-made industrial parts. This paper presents a new approach to modeling generalized cylinders based on...

A simple method for drawing a rational curve as two Bézier segments
Jean Gallier
Pages: 316-328
DOI: 10.1145/337680.337696
In this paper we give a simple method for drawing a closed rational curve specified in terms of control points as two Bézier segments. The main result is the following: For every affine frame (r,s) (where...

A unified approach for hierarchical adaptive tesselation of surfaces
Luiz Velho, Jonas Gomes, Luiz Henrique de Figueiredo
Pages: 329-360
DOI: 10.1145/337680.337717
This paper introduces a unified and general tesselation algorithm for parametric and implicit surfaces. The algorithm produces a hierarchial mesh that is adapted to the surface geometry and has a multiresolution and progressive structure. The...

The holodeck ray cache: an interactive rendering system for global illumination in nondiffuse environments
Gregory Ward, Maryann Simmons
Pages: 361-368
DOI: 10.1145/337680.337722
We present a new method for rendering complex environments using interactive, progressive, view-independent, parallel ray tracing. A four-dimensional holodeck data structure serves as a rendering target and caching mechanism for...