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What is this RTX Raytracing Artifact? Black dots streaming from Meshes in Directional Lines.

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    What is this RTX Raytracing Artifact? Black dots streaming from Meshes in Directional Lines.

    Hey guys,

    Just installed a 2080TI and eventually debugged enough issues to get it working.

    Seems that having "Raytracing Transparency" on kills all my particles so I can't use it. But with RTX Transparency off, some of meshes in my scene develop these streaming dots that fly off toward the camera. It's really the only thing that's visibly stopping me from further development. What is this? I can't seem to find how to debug it.

    What's interesting is this is only visible in this interior room. There is some invisible boundary that if I move the mesh outside of, it looks and acts normally. For some reason only in this interior the issue is happening.

    Thanks!
    Last edited by Baazar; 12-06-2019, 04:36 PM.

    #2
    UPDATE: I have discovered this is an artifact from Rect. Lights. Turning off my Rec lights fixes it but I can't figure out what about it causes it as it's not present on Point and other lights.

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      #3
      I haven't had that issue with Rect lights, they work just fine for me

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        #4
        Originally posted by darthviper107 View Post
        I haven't had that issue with Rect lights, they work just fine for me
        Well this is definitely happening with specific meshes in my scene. It obviously has something to do with the directionality of rect lights.

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          #5
          Try watching the video about rect lights in the Online Learning pages. And read the rect light doc page. It shows that it is a bit more limited than other light types in certain ways.

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