What determines a "bad normal"?

Discussion in 'Mapping Questions & Discussion' started by Eternal, Jul 26, 2009.

  1. Eternal

    Eternal L69: Deviant Member

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    I found and fixed the problem (which was an "invalid shape") But I was wondering what determines if a shape is invalid or what a "bad" normal is? The object I made looked fine to me as far as I could tell but the program didn't seem to agree with me.
     
  2. A Boojum Snark

    aa A Boojum Snark Toraipoddodezain Mazahabado

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    Invalid solids are when the verticies of a face are not coplanar. Meaning the face "bends" rather than being flat.
    A bad normal results from the texture coordinates/axis being improper for the face. In your case, probably because the face was invalid.