Skip to main content
I
ikhxs
Participant
February 4, 2025

AO baking error in substance painter

  • February 4, 2025
  • 18 replies
  • 8313 views
I got an error when doing bake ambient occlusion.
the AO display looks inappropriate, with strange patterns, completely unable to detect the angles on my object. On all the 3D objects that I use, the results are the same.
Here I give an example of only using a cube because the results will be more certain, it is impossible to experience a wrong backface or UV. but the result is still like this.

what do I have to do ? This bug occurred suddenly.

 

    18 replies

    Show previous replies
    shawns96704139
    shawns96704139
    Participating Frequently
    February 25, 2025

    No, setting it to Use Low Poly as High Poly does not fix it either. Tested on multiple models. So far the only fix is to roll back to the older driver.

    C
    colin_0556
    Participant
    February 24, 2025

      C
      colin_0556
      Participant
      February 24, 2025

      I found that you can add the Low Poly mesh into the "High Poly parameters", and this fixes the issue on limited testing, as seen in the "blue" chair images

        M
        Meroj38204637hfjg
        Participant
        February 24, 2025

        adding --force-optix in the launch arguments solved the issue, but both studio and game drivers for nvidia still have this issue on Jan 30th. If anyone is trying to figure out how to add the launch arguments you can add non steam applications to steam and use the launch arguments in the properties. fixed it for me at least.

        L
        lionel_5800
        Participant
        February 18, 2025

        Facing de same issue, still not resolved in Nvidia 572.42 drivers published 13 feb 2025. I have an RTX 4070 Laptop GPU.

          shawns96704139
          shawns96704139
          Participating Frequently
          February 14, 2025

          The new NVidia driver released today, Feb. 13th, 2025, did not fix the issue.

            Cyril Dellenbach
            Community Manager
            Cyril DellenbachCommunity Manager
            Community Manager
            February 5, 2025

            Hi,

             

            Thank you for reporting.

             

            Unfortunately, this is an issue we're facing with Nvidia latest driver.

             

            • You can try this fix, but from users feedback it doesn't work for everyone.
            • You can also try to disable the GPU Raytracing (Edit > Settings > General > Baking options > Enable GPU Raytracing) 
            • Utlimately, you can rollback to a previous driver version

             

            For the information, we're currently in discussion with Nvidia to find a fix a soon as possible.

             

            Best regards,

             

            Cyril Dellenbach (Micro) | QA Support Artist | Adobe
              M
              Michael34261872hvbb
              Participant
              February 4, 2025

              had the same issue, after I updated my GPU driver in the weekend
              I was using the latest NVIDIA Studio Driver 572.16 reverted back to 566.36 - resolved for me, for now

                Terms & ConditionsAccessibility statement
                Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices