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Question

Material definition in OBJ export

  • November 14, 2016
  • 1 reply
  • 10 views

lavairye
Contributor
Forum|alt.badge.img

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)?

1 reply

daveatsafe
Safer
Forum|alt.badge.img+19
  • Safer
  • November 15, 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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