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I am creating an inflatable pink flamingo in Cycles, and there is an ugly black line at the edge of my mesh that I don't know how to get rid of. Here are my materials and a sample render. How do I get rid of the black lines at the edge of my mesh? enter image description here

enter image description here

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  • $\begingroup$ Maybe your lighting, how does it look in solid shading? Have you checked for any overlapping geometry? $\endgroup$
    – Timaroberts
    Commented May 30, 2016 at 6:18
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    $\begingroup$ @corgijumper, maybe you could be so kind as to upload a copy of your ~.blend file to blend-exchange, and edit the link to the file into your quesiton. $\endgroup$
    – brasshat
    Commented May 30, 2016 at 6:21
  • $\begingroup$ This can be a bad alignement of the vertices around the x-axis (bad clipping or no clipping in the mirror modifier) $\endgroup$
    – lemon
    Commented May 30, 2016 at 6:40
  • $\begingroup$ Upload your file please $\endgroup$
    – Jml19
    Commented May 30, 2016 at 9:33

1 Answer 1

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First, it is hard to tell without your .blend file, but I believe I have a two part solution.

Part 1

Many of your nodes are repetitive and unnecessary. You would get a near-identical result with just the following. Use the Layer Weight node's slider to affect the glossiness (higher value = more glossiness).

enter image description here

Original node setup vs. My node setup:

enter image description here vs. enter image description here

Part 2

I assume you have Smooth Shading on, as activated in the Toolshelf. If you do, either return to Flat Shading or add a Subdivision surface object modifier.

To add such a modifier, first go to the Object Modifiers tab in the Properties panel. Select Subdivision surface from the options. Set both the View: value to 2 and the Render: value to 3.

Final modifier settings:

enter image description here

Smooth shaded Suzanne without any subsurf:

enter image description here

Smooth shaded Suzanne with subsurf at 3:

enter image description here

Flat shaded Suzanne:

enter image description here

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  • $\begingroup$ Thank you! I was able to fix the lines around my mesh this way! $\endgroup$ Commented May 30, 2016 at 17:13
  • $\begingroup$ @corgijumper If you liked my answer, please consider accepting it. $\endgroup$
    – Shady Puck
    Commented May 30, 2016 at 17:32

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