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I wanted to model the inside of this lightbulb screw, specifically the red glue (or resin) and uneven edges/mottled look it has... any ideas on how to do that? I've modeled a rough shape for the area where it dips from the rim but not sure whats the best way to get an 'organic' look...

Any help?

enter image description here

enter image description here

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I approached this by creating a custom texture. First I Marked three seams in the base mesh CTRL + E > Mark Seam.

Mark Seams

Then unwrapped it. By selecting all of the vertices and pressing U > Unwrap. I scaled the UV Map larger because I was only interested in the area I applied the custom resin texture to.

Unwrap

Then exported the UV layout and in an image editor created a custom texture. Of course turned off the UV Layout before saving the finished texture.

Custom Texture

Nodes

Final

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    $\begingroup$ You are welcome. And thank you for inspiring me to ask another question about the broken glass! $\endgroup$
    – Dontwalk
    Commented Mar 7, 2018 at 4:46

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