Title
Light and materials in virtual cities
Abstract
The level of accuracy required for physical models of materials and their interaction with light in virtual city models is an open question. We consider work that has been done to date on modeling architectural materials, the measurement of such materials in situ, and modeling of natural materials found in urban environments (e.g. snow, ice, and mud). We identify gaps in currently available data, in current technology for specifying materials on large sets of buildings and rendering complex materials on a large scale. We also consider illumination of cities -- both day lighting and the natural and manmade illumination at night. We identify issues related to night illumination, where assumptions about adapting to light source spectra and sensitivity to color that are made for daylight may not hold.
Year
DOI
Venue
2008
10.1145/1401132.1401143
ACM SIGGRAPH 2008 classes
Keywords
DocType
Citations 
available data,light source spectrum,night illumination,index terms: i.3.7 three-dimensional graphics and realism: color,architectural material,large set,shadowing and texture—,virtual city,shading,natural material,manmade illumination,complex material,large scale,current technology,indexing terms,reflectance,physical model,computer graphics,materials
Conference
1
PageRank 
References 
Authors
0.35
25
2
Name
Order
Citations
PageRank
Julie Dorsey12535182.80
Holly Rushmeier22294334.25