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Prepass bucket issue

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  • Prepass bucket issue

    I'm having an issue with the prepass render. The two render nodes seem to work fine, but the host machine is creating dark buckets on the prepass, and then blotchy spots on the final render. This issue seems only specific to this particular image as I'm not having the issue with any of the other files I'm working on...

    Click image for larger version

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    David Anderson
    www.DavidAnderson.tv

    Software:
    Windows 10 Pro
    3ds Max 2024.2.1 Update
    V-Ray GPU 6 Update 2.1


    Hardware:
    Puget Systems
    TRX40 EATX
    AMD Ryzen Threadripper 3970X 32-Core 3.69GHz
    2X NVIDIA GeForce RTX 3090
    128GB RAM

  • #2
    Yep... happens to me occasionally. Not all projects, about 1/2. it eventually goes away as fast as it shows up.
    Bobby Parker
    www.bobby-parker.com
    e-mail: info@bobby-parker.com
    phone: 2188206812

    My current hardware setup:
    • Ryzen 9 5900x CPU
    • 128gb Vengeance RGB Pro RAM
    • NVIDIA GeForce RTX 4090
    • ​Windows 11 Pro

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    • #3
      Hi,

      The reasons for issues like this in most of the cases are missing external files or different Windows regional settings.
      Make sure that all render nodes have an access to the textures and all external files (GI pre calculated files, .IES files) used in the scene.
      Do you use "Check for missing maps" options for this scene?
      Did you try to render the scene with regular override material?

      I'm not having the issue with any of the other files I'm working on
      If it's scene dependent, you can archive and send it to support@chaosgroup.com in order to test in our environment, so we will try to help.
      Tashko Zashev | chaos.com
      Chaos Support Representative | contact us

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