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Recently I saw new cycles wood shader from CG Cookie, that looks very impressive and I was wondering if it is possible somehow to mix few wave textures to achieve natural looking knots on the wood. Here are some examples:

Knot1

Knot2

My first Attempt:

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  • $\begingroup$ Currently I am trying to limit the amount of rings on the wave texture, once I figure out how to do that, that texture should morph with the main wave texture and placed randomly across the object. And somehow the knot should expand from the center of the main wave texture. $\endgroup$ – Denis Mar 27 '15 at 22:38
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    $\begingroup$ Then post your node setup and/or blend file. $\endgroup$ – someonewithpc Mar 27 '15 at 22:41
  • $\begingroup$ I added blend file with my first attempt. $\endgroup$ – Denis Mar 27 '15 at 23:22
  • $\begingroup$ The wood osl shader explained on this page has knots in it, if you don't want to use osl then you may get some inspiration. $\endgroup$ – sambler Mar 28 '15 at 13:25
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    $\begingroup$ I recommend taking a look at this talk from the 2014 blender conference, if you haven't already. $\endgroup$ – gandalf3 Mar 28 '15 at 18:15

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