Looks like it could be Perlin noise applied to a bump map. Edit: In fact, almost certain, see the third texture in this link: http://www.texturemaker.com/help/f

Looks like it could be Perlin noise applied to a bump map. Edit: In fact, almost certain, see the third texture in this link: http://www.texturemaker.com/help/functions/generator_perlinnoise.htm http://www.texturemaker.com/help/functions/generator_perlinn...