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Weird Shading Again

JamesJames Posts: 922
edited May 8 in Daz Studio Discussion

https://prnt.sc/aRxk1rOWUai4

Any ideas why it happens?

 

Is it because the normal direction?
https://prnt.sc/xIPl1ZwxpDHB
How to change the direction?

Post edited by James on

Comments

  • felisfelis Posts: 3,844

    Based on your normals it looks like you have some overlapping mesh.

    Try to select all, then Mesh > Merge > By Distance and see if it didn't remove some vertexes?

  • JamesJames Posts: 922

    0 merge.

  • JamesJames Posts: 922

    I play with the 'Angle' slider on surface pane. If set to 0 the weird shadding is gone.

     

  • Richard HaseltineRichard Haseltine Posts: 97,731

    The shading goes because you have removed all smooth shading - not because it has fixed any underlying mesh issue.

  • JamesJames Posts: 922
    edited May 9

    I can't find any issue with the mesh.
    no double vertices, no face overlapping, no n gon.
    Here's the obj.

    https://drive.google.com/file/d/1rtHGx_IYU1ucN2Ojn8TuDFp3Q02Uoh9A/view?usp=sharing

     

     

    Post edited by James on
  • felisfelis Posts: 3,844

    I checked the geometry - it looks fine.

    I then did some test. It seems to be the 45 degree angle at the edge of the frame causing that, in combination with sharp edges.

    I made a similar frame without the 45 degree edge, and it was fine, but when I added the edge I could see something similar. Removing sharp edges, and introducing a tiny bevel, made it almost not visible.

    But none of it is visible in Iray render (or blender viewport), so to me it looks like it is the OpenCL shader DS is using in the viewport that have an issue.

  • JamesJames Posts: 922

    Ah... okay, so that's why. At least I can sleep tonight.
     

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