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unreal engine 4.8 teselation problem

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    unreal engine 4.8 teselation problem

    tessellated materials seem to be broken.
    when I want to make a simple tesselated material it returns:
    "warning X3206: implicit truncation of vector type"
    and
    "error x3000: unrecognized identifier 'FVertexFactoryInterpolantsVSToDS' "
    what is problem? how can I have a tessellated object?
    I have a ATI card and it supports DX11 .its not old... somehow ,is it possible that it related to DX11 ?..(maybe it's not enabled or I don't know ...just you tell me what s problem )
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    #2
    there is no answer?

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      #3
      Originally posted by Behrang View Post
      there is no answer?
      This is not an issue with standard UE4, this is because you are using the NVIDIA merged version. There is a known issue with tessellation and Flex (since the addition of the flex fluid surface). My branch has been patched to fix this, so you can take a look and cherry pick the latest commit.
      NVIDIA GameWorks merged branch (v4.9.2) (v4.12.5) (v4.13 p2)
      Feel free to Donate if you wish to support me

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