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Black areas with Vray displacement mod

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  • Black areas with Vray displacement mod

    Can anyone explain what causes this effect when using Vray displacement mod? when I test my displacement maps on a simple plane they look fine but I frequently get these artifacts in actual model scenarios. I'm using 2d mapping with a vraycomptex mix of noise and a grass bitmap but even with a basic bitmap the problem persists.

  • #2
    Although those long polys can cause trouble and are to be avoided, as are the big ngon faces, this does work in the example I just tried using a similar shape, made from an extruded line/convert poly/delete all but top faces, so there may be something else wrong with your model or settings.
    If you link to the file I can take a look.
    https://www.behance.net/bartgelin

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    • #3
      Thanks, that would be great if you could, I'm just running some different displacement maps through it to rule out a texture issue, I'll upload a file soon.

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      • #4
        Just to note; procedural noise does not work with 2D displacement.
        https://www.behance.net/bartgelin

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        • #5
          I think it's simpler than that, I had my displacement map on the wrong channel so it was not mapping the thing at all.....

          Problem solved but thanks for the offer!

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          • #6
            hehe ok, I'm glad you solved the issue
            https://www.behance.net/bartgelin

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