Some of my wood work for Poliigon.com
100% procedural using substance designer.
Get the textures on Poliigon: https://www.poliigon.com/search/recent/narrow/new/wood
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This is the master graph used to generate all the textures above, using some functions to randomize parameters and assign different kinds of patterns to feed the chain. So I can get a variety of patterns and colorings just by changing some sliders.