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I have some very simple icicles that I made using the icicle generator addon.

enter image description here

I was wondering how to create a distortion/texture on the icicles to make it look realistic. Here is an example of what I am looking for.

enter image description here

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  • $\begingroup$ With lighting from the first screenshot it's likely pretty much impossible to achieve the same look. Add some environment lighting, add volumetric material to the icicles and it should provide something at least for starting. This will be quite resources heavy way though $\endgroup$ – Mr Zak Dec 3 '17 at 16:07
  • $\begingroup$ Could you provide link to this add-on? I can make an answer but I need to know if its possible to add some loop cuts to the icicles and UV Maps. $\endgroup$ – cgslav Dec 3 '17 at 17:22
  • $\begingroup$ Here is the link: blenderartists.org/forum/…. And yes, you can add loop cuts and use UV mapping $\endgroup$ – Tucker Dec 3 '17 at 18:17
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Final:

Final

Node setup:

nodes

This is pretty simple setting, mixed Wave Texture with Noise and used as Bump for Glass.

Before this you have randomization for Z position per object to make icicles looks different from each other. They should be separated objects.

Mesh notes:

It's not part of the question, but I'll try to briefly describe how to use it with this add-on.

To get this working you need to have UV Map for icicles. I've used Cylindrical Projection on all of them.

After this I've separated icicles - P > By loose parts.

Another issue could be Smooth Shading. Check here for solution: Smooth cone with glossy or anisotropic texture gets dark spot or use Flat Shading.

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