NightLighting: a Nocturnal Urban Illumination Approach

Muñoz-Pandiella, Imanol; Andújar, Carlos; Patow, Gustavo

NightLighting: a Nocturnal Urban Illumination Approach

Files

013-016.pdf (438.47 KB)

Date

2013

Authors

Muñoz-Pandiella, Imanol
Andújar, Carlos
Patow, Gustavo

Publisher

The Eurographics Association

Abstract

Real time rendering of cities with realistic global illumination is still an open problem. In this paper we propose a two-step algorithm to simulate the nocturnal illumination of a city. The first step computes an approximate aerial solution using simple textured quads for each street light. The second step uses photon mapping to locally compute the global illumination coming from light sources close to the viewer. Then, we transfer the local, highquality solution to the low resolution buffers used for aerial views, refining it with accurate information from the local simulation. Our approach achieves real time frame rates in commodity hardware.

        @inproceedings{:10.2312/UDMV/UDMV13/013-016
,
booktitle = {Eurographics Workshop on Urban Data Modelling and Visualisation
},
editor = {Vincent Tourre and Gonzalo Besuievsky
},
title = {{NightLighting: a Nocturnal Urban Illumination Approach
}},
author = {Muñoz-Pandiella, Imanol and 
Andújar, Carlos and 
Patow, Gustavo
},
year = {2013
},
publisher = {The Eurographics Association
},
ISSN = {2307-8251
},
ISBN = {978-3-905674-46-0
},
DOI = {/10.2312/UDMV/UDMV13/013-016
}
}