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Pitted/porous rock custom texture

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reidprice7:
Hello,

I am struggling to achieve a texture similar to this product, the middle circular piece with a sort of porous pitted rock/ lava rock look.

So far I have tried cellular bump but to no avail, a few of the stock normal maps such as asphalt and rock, and had a look on the Keyshot library but didn't quite find the right thing.
I guess the next step would be making my own normal map? I don't have much experience in this, any help would be much appreciated!

Cheers

RRIS:
You'll probably have more luck with the 'spots' texture in a high density.
Still, you'll have to wait for Keyshot 8 to get displacement and to be able to make a true 3D material.
Normal map generation is something I kind of gave up on.. maybe they have something on poliigon.com?

kiarash.tamizkar:
Actually the best way is using some alpha maps for sculpting that piece and baking displacement map from it and use it keyshot 8 that support displacement map

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