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Exporting surface normals


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Hello, I see this question has been asked before but not answered (?), so I try again: Is there a way to export the surface normals as a file from RTIviewer, or in some other way? I wrote a command-line script for this a long time ago (taking a PTM file as input), but it is cumbersome to use and the normal estimation is not very robust. I would like to have the surface normals in order to use the "whitening" procedures described by Hammer and Spocova (2013), "Virtual whitening of fossils using polynomial texture mapping".

Thanks a lot!

Øyvind Hammer, Natural History Museum, University of Oslo


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