Visit this page:
http://www.ignorancia.org/en/index.php?page=Lightsys
and go to the Downloads section. Everything you need is contained in "lightsys4c.zip". You'll need to either dump them in the same directory as Datsville, or add the directory to POV-Ray's library paths.
http://www.ignorancia.org/en/index.php?page=Lightsys
and go to the Downloads section. Everything you need is contained in "lightsys4c.zip". You'll need to either dump them in the same directory as Datsville, or add the directory to POV-Ray's library paths.