PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Given that our perception of a material is determined to a large extent by its reflectance properties, it???s understandable that several different BRDFs have been developed, with different effectiveness and efficiency at modelling different types of surfaces:
http://www.w3.org/ns/prov#wasQuotedFrom
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