Hello,
I'm exporting OBJ files from a CityGML dataset. In the mtl file, FME write a Tr attribute. Can somebody please tell me what is this parameter (I don't see it in the wavefront format definition)?
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15 November 2016
Hi,
Tr is the material transparency. It is used in place of 'd' for dissolve, and is the inverse of it (0 is fully opaque). For more information, please see 'https://en.wikipedia.org/wiki/Wavefront_.obj_file#Basic_materials'
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