Re: Masks working incorrectly (2024)

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Re: Masks working incorrectly (3)

Community Beginner ,

/t5/substance-3d-painter-discussions/masks-working-incorrectly/td-p/13909950 Jul 03, 2023 Jul 03, 2023

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When i create a mask in Substance Painter, the mask forms its own unique shape each time and the colors bleed onto each other.

I unwrap in blender, export in fbx and then when i open in Susbtance Painter, I create a mask but it doesn't work properly. I've tried it with a few different models and each time the same thing happens. I'm guessing i'm missing sometthing obvious but i can't see it. Any help would be most appreciated.

Below is an example. The mermaid tail is meant to be all metallic red but it's half red half gold. (The mermaid fin above is gold which is where that color comes from.)

Re: Masks working incorrectly (4)

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Re: Masks working incorrectly (5)

    Re: Masks working incorrectly (6) 1 Correct answer

    Re: Masks working incorrectly (7) Re: Masks working incorrectly (8)

    Community Expert , Jul 04, 2023 Jul 04, 2023

    davescm Community Expert , Jul 04, 2023 Jul 04, 2023

    With the import settings you show I could not replicate the issue.

    However, your settings show you have Auto Unwrap checked on import. If I uncheck that and just take the unwrap as you made in Blender (you did say you unwrapped in Blender) then the UV islands are overlapped and lead to the exact issue you show.

    Re: Masks working incorrectly (9)

    So to fix it either:

    a. Ensure you do use AutoUnwrap on import

    or

    b. Go back to Blender and unwrap making sure there is no overlap in the UV islands, in which case do not check A

    ...

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    Re: Masks working incorrectly (11) 6 Replies 6

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    Re: Masks working incorrectly (14) Re: Masks working incorrectly (15)

    Community Expert ,

    /t5/substance-3d-painter-discussions/masks-working-incorrectly/m-p/13910198#M5849 Jul 03, 2023 Jul 03, 2023

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    Can you attach an fbx on which you have the issue, a simple demo file will do as long as you have the issue with it, and a description of exactly how you made the mask. I can use that to try and replicate here.

    Dave

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    Re: Masks working incorrectly (16)

    Re: Masks working incorrectly (17)

    Community Beginner ,

    /t5/substance-3d-painter-discussions/masks-working-incorrectly/m-p/13911311#M5851 Jul 03, 2023 Jul 03, 2023

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    In Response To davescm

    Hi. Thank you for helping.

    I create a new project in Substance Painter with the below settings

    Re: Masks working incorrectly (18)

    then i bake it.

    Then i drag a smart material onto the model and use a mask to only apply it only to the fin bottom.

    Then i drag another smart material onto the model and use a mask to only apply it to the fin top.

    and that creates the weird effect.

    The strange thing is everything worked fine a week ago. but now i have this weird making layout. See below. The tail is meant to be a solid color.

    Also, i checked and my PC is strong enough to run Substance painter.

    Re: Masks working incorrectly (19)

    WholeThingV2.fbx

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    Re: Masks working incorrectly (20)

    Re: Masks working incorrectly (21) Re: Masks working incorrectly (22)

    Adobe Employee ,

    /t5/substance-3d-painter-discussions/masks-working-incorrectly/m-p/13911984#M5853 Jul 04, 2023 Jul 04, 2023

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    In Response To RunningOnDonutsAndTea

    Hi@RunningOnDonutsAndTea,

    Could you specify which Smart Material you're using and on which version Substance 3D Painter is running?

    Under the current 9.0.0, some blending modes were causing issues just like the one you're facing (this should be fixed in the 9.0.0).

    With that being said, this could very well be something else, but it is worth looking into.

    Best regards,

    Cyril Dellenbach (Micro) | QA Support Artist | Adobe

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    Re: Masks working incorrectly (23)

    Re: Masks working incorrectly (24) Re: Masks working incorrectly (25)

    Community Expert ,

    /t5/substance-3d-painter-discussions/masks-working-incorrectly/m-p/13912191#M5854 Jul 04, 2023 Jul 04, 2023

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    In Response To RunningOnDonutsAndTea

    With the import settings you show I could not replicate the issue.

    However, your settings show you have Auto Unwrap checked on import. If I uncheck that and just take the unwrap as you made in Blender (you did say you unwrapped in Blender) then the UV islands are overlapped and lead to the exact issue you show.

    Re: Masks working incorrectly (27)

    So to fix it either:

    a. Ensure you do use AutoUnwrap on import

    or

    b. Go back to Blender and unwrap making sure there is no overlap in the UV islands, in which case do not check Auto Unwrap on import.

    Dave

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    Re: Masks working incorrectly (28)

    Re: Masks working incorrectly (29)

    Community Beginner ,

    /t5/substance-3d-painter-discussions/masks-working-incorrectly/m-p/13912810#M5857 Jul 04, 2023 Jul 04, 2023

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    In Response To davescm

    Thank you! That was it. I went back into Blender, removed all the unwraps, exported the model into Subtance Painter and clicked the "unwrap" button and applying all the textures worked perfectly! The problem was i exported all the parts separately, i unpacked them and didn't realize Substance Painter was going to combine all the UV maps together causing the islands to overlap. Hence the glitches in textures.

    Thank you again!

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    Re: Masks working incorrectly (30)

    Re: Masks working incorrectly (31) Re: Masks working incorrectly (32)

    Community Expert ,

    /t5/substance-3d-painter-discussions/masks-working-incorrectly/m-p/13912823#M5858 Jul 04, 2023 Jul 04, 2023

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    In Response To RunningOnDonutsAndTea

    You're welcome. I tend to use option 'a' which is to manually unwrap in Blender ensuring I have no overlapping islands, then I turn off Auto Unwrap on import to Substance Painter. That way I retain full control of the unwrap process.

    The key though is:

    If you unwrap in Blender and have no overlaps - then turn off (uncheck) Auto Unwrap in Substance.

    If you don't unwrap in Blender - then turn on (check) Auto Unwrap in Substance.

    There is no need to unwrap twice 🙂

    Dave

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    Re: Masks working incorrectly (33)

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