Ключевые слова: abstract, age, aging, annual, background, bark, brown, circle, circular, closeup, concentric, core, cross, cut, detail, forest, forestry, grain, growth rings, history, isolated, life, log, lumber, macro, material, natural, nature, oak, old, pattern, pine, ring, rough, round, saw, section, shape, slice, stump, texture, textured, timber, tree, tree trunk, trunk, wood, wooden, years, yellow,