About: http://webisa.webdatacommons.org/85450518

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Chapter 2 is a great introduction to rendering in general, including some clear definitions of all the quantities involved (radiance, flux...).
http://www.w3.org/ns/prov#wasQuotedFrom	gamedev.net