Fig. 3: Comparison between the simulated rendering of a metallic surface (left panel) and real samples (right panel) of pure gold (top), osmium (centre) and caesium (bottom).
From: Photorealistic modelling of metals from first principles
Photos of the gold and osmium samples are reproduced with the courtesy of Heinrich Pniok (www.pse-mendelejew.de) and are published under the Free Art License (http://artlibre.org/licence/lal/en/). Photo of the caesium sample is from the Dennis “S.K.” collection and is published under the GNU Free Documentation License (https://www.gnu.org/licenses/fdl.html).
