MAIN RADIANCE DISTRIBUTION SITE hobbes.lbl.gov (128.3.12.38) If you are picking this up from an ftp redistribution site, then you may want to check out the original site if you decide you like the software. Hobbes.lbl.gov is for Radiance program distribution, models, software, and examples. Radiance is free but copyrighted ray tracing software for lighting simulation and rendering. It is not public domain, and we ask that you do not try to resell it under your own name. If you do, you will go straight to hacker's hell where you will be forced to write control software in 6502 assembler and eat crystallized jelly doughnuts for all eternity. Radiance is UNIX software. If you don't have some flavor of UNIX with X11 and a decent compiler, you should probably not bother with this package. The main distribution file containing source code and documentation is "Radiance2R4.tar.Z". This file is over 8 Megabytes, so be sure to check that you are in binary mode BEFORE you grab it. There is also a gzip version of the archive, called "Radiance2R4.tar.gz". If you have a previous release of Radiance, you should also read the file ReleaseNotes first to find out what has changed in this release. If you are calling from the European continent, you may wish to pick up the distribution locally from our ftp site in Switzerland, nestor.epfl.ch (128.178.139.3). The pub directory contains several subdirectories with contributions from here, there and everywhere. If you wish to contribute, please look at pub/README first. IMPORTANT: You should pick up whatever is in the pub/patch directory and follow the instructions in the README file therein. Also, the file called BUGS in the main directory contains information on known but unfixed (or unfixable) bugs for various systems. If you run into trouble, you should consult this file first. If you have any unanswered questions regarding this archive or software herein, send mail to greg@hobbes.lbl.gov I will get back to you as soon as possible. We have just installed a WWW site for Radiance. You may access it from the URL, "ftp://hobbes.lbl.gov/www/radiance/HOME.html". If you use Radiance in your work, please give credit to the Lighting Group at Lawrence Berkeley Laboratory as well as the U.S. Department of Energy and the Laboratoire d'Energie Solaire et de Physique du Batiment (LESO-PB) at the Ecole Polytechnique Federale de Lausanne (EPFL) in Switzerland. I wouldn't mind seeing my name in print, either, but those guys paid my salary, so mention them first. Thanks. -Greg Ward