I always say the less your color textures look like a photograph, the better the will end up looking in 3D. In that spirit take a look at this photoshop quick tip tutorial by Bree L by using noise filters, and the liquify tool. Here is a link to the written version of this tutorial Quick Tip: Create a Wood Panel Texture in Photoshop.
photoshopphotoshop tutorials
create a wood panel texture in photoshop
lesterbanks
3D, VFX, design, and typography. Twenty year veteran instructor in all things computer graphics.
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