Refraction in Discrete Ray Tracing

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Date
2001
Authors
Rodgman, David
Chen, Min
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Refraction is an important graphics feature for synthesizing photorealistic images. This paper presents a study on refraction rendering in volume graphics using discrete ray tracing. We describe four basic approaches for determining the relative refractive index at each sampling position, and examine their relative merits.We discuss two types of anomalies associated with some approaches and three different mechanisms for controlling sampling intervals. We apply the refraction rendering to objects with uniform as well as non-uniform optical density, and objects built upon mathematical scalar fields as well as volumetric datasets. In particular, the study shows that the normal estimation plays a critical role in synthesizing aesthetically pleasing images. The paper also includes the results of various tests, and our quantitative and qualitative analysis.
Description

        
@inproceedings{
10.2312:VG/VG01/001-015
,
booktitle = {
Volume Graphics
},
editor = {
K. Mueller and A. Kaufman
},
title = {{
Refraction in Discrete Ray Tracing
}},
author = {
Rodgman, David
 and 
Chen, Min
},
year = {
2001
},
publisher = {
The Eurographics Association
},
ISSN = {
1727-8376
},
ISBN = {
3-211-83737-X
},
DOI = {
10.2312/VG/VG01/001-015
}
}
Citation
URI
http://dx.doi.org/10.2312/VG/VG01/001-015
Collections
VG01: Volume Graphics Workshop 2001