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Bug (Case 1240367) Changing TextureImporter.textureType resets TextureImporter.mipmapEnabled silently

Discussion in '2020.1 Beta' started by Kichang-Kim, Apr 22, 2020.

  1. Kichang-Kim

    Kichang-Kim

    Joined:
    Oct 19, 2010
    Posts:
    979
    Hi. I found that the issue about changing TextureImporter's property.

    As a title said, when I change textureType property, it silently reset mipmapEnabled property too. This behaviour is clearly not described in official documentation. I can't sure this is bug or intended behaviour. But it is clearly annoying and changing a single property should not affect to other properties.

    Reproducible project is sent as Case 1240367.
     
    Kichang-Kim, Apr 22, 2020
    #1

  2. Kichang-Kim

    Kichang-Kim

    Joined:
    Oct 19, 2010
    Posts:
    979
    I received response from Unity. It is "By Design" behaviour.

    You should manage all of existing properties of TextureImporter and carefully integrate the order of multiple AssetPostProcessors.
     
    Kichang-Kim, Apr 27, 2020
    #2

  3. LeonhardP

    LeonhardP

    Unity Technologies

    Joined:
    Jul 4, 2016
    Posts:
    3,111
    From the devs:

    "Most TextureTypes have a set of default values. By design they are set when changing the type.
    It prevents some unsupported or incorrect values (for example, a NormalMap texture should never have sRGB = true)".

    We've forwarded your request to make this information more transparent.
     
    LeonhardP, Apr 27, 2020
    #3
    Kichang-Kim likes this.