The more I look at the three snails, the more I find A and C to be similar in their pattern of illumination.<p>EDIT: the closer I look the more I&#x27;m convinced.  C is the matte rendering of A; B is the different environment map.  Figure 2 in the paper bears me out;  I think the authors managed to fool themselves while editing :(.<p>EDIT#2:  make that figure 2A &amp; 2B that bear me out ... 2C they seem to have used the same image twice in the bottom row.  Am I mad?  I know these errors are easy to make in the rush to publication, but my senses disagreeing with the text in so many places is starting to freak me out!