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  • Lock Fresnel IOR

    Are there some known issues in Vray 7?
    The tickbox does nothing here.
    https://linktr.ee/cg_oglu
    Ryzen 5950, Geforce 3060, 128GB ram

  • #2
    Originally posted by oglu View Post
    Are there some known issues in Vray 7?
    The tickbox does nothing here.
    There were some changes regarding its relation to Metalness - documented here. Basically, when you have Metalness on, the fresnel is calculated based on the diffuse and reflection colors.

    If you mean that the Fresnel IOR option stays greyed out, I'll log it. If you uncheck the "Lock" and afterward uncheck and check the "Use Fresnel" it should get back to normal.

    EDIT: Logged (internal bug-tracker id: VMAYA-13372) the UI thing.
    Last edited by hermit.crab; 13-02-2025, 06:34 AM.
    Aleksandar Hadzhiev | chaos.com
    Chaos Support Representative | contact us

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    • #3


      I see no reason why it shouldnt work. Maybe im missing something?

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      https://linktr.ee/cg_oglu
      Ryzen 5950, Geforce 3060, 128GB ram

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      • #4
        As I said, that's a UI issue. Untick and tick back the "Use Fresnel" and it will become available.

        EDIT: It's fixed in today's nightly.
        Last edited by hermit.crab; 14-02-2025, 03:47 AM.
        Aleksandar Hadzhiev | chaos.com
        Chaos Support Representative | contact us

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