Alexander Wilkie, Robert F. Tobler, Werner Purgathofer. Orientation lightmaps for photon tracing in complex environments. The Visual Computer, 17(5):318-327, 2001. [doi]
@article{WilkieTP01,
title = {Orientation lightmaps for photon tracing in complex environments},
author = {Alexander Wilkie and Robert F. Tobler and Werner Purgathofer},
year = {2001},
url = {http://link.springer.de/link/service/journals/00371/bibs/1017005/10170318.htm},
tags = {Meta-Environment},
researchr = {https://researchr.org/publication/WilkieTP01},
cites = {0},
citedby = {0},
journal = {The Visual Computer},
volume = {17},
number = {5},
pages = {318-327},
}