Title
Rendering gems with asterism or chatoyancy
Abstract
In this paper we describe an algorithm to render the asterism or chatoyancy effect in gems. This effect is due to light dispersion caused by inclusions consisting of vast numbers of thin fibrous needles. We develop models for distribution of the microfacet directions of the inclusions and of the light dispersion by them. Based on these models we derive an algorithm to render gems with the asterism effect. By introducting a ray distribution map, a new algorithm for tracing dispersed light rays is developed.
Year
DOI
Venue
1986
10.1007/BF02020431
The Visual Computer
Keywords
Field
DocType
Rendering,Asterism and chatoyancy,Ray tracing
Dispersion (optics),Computer vision,Chatoyancy,Computer graphics (images),Ray,Ray tracing (graphics),Computer science,Asterism (astronomy),Artificial intelligence,Rendering (computer graphics),Tracing
Journal
Volume
Issue
Citations 
2
5
5
PageRank 
References 
Authors
0.70
1
3
Name
Order
Citations
PageRank
Shigeki Yokoi111434.20
Kosuke Kurashige250.70
Jun-ichiro Toriwaki3578136.04