oak tree 3d model

One ancient gnarled oak tree, a premium realistic stylized dark fantasy game environment asset. Massive asymmetrical twisting trunk with deeply fissured layered bark, convincing organic branching junctions, exposed buttress roots gripping the earth, weathered knots and one small hollow. Broad irregular crown of distinct clustered muted dark sage-green oak leaves, sparse ochre leaves, airy gaps revealing crooked branches. Subtle moss and pale lichen in bark crevices. Sculpted natural forms and rich PBR bark detail, handcrafted dark woodland art direction, believable botanical structure. Full tree visible from roots to canopy, isolated asset, neutral even lighting. No pedestal, no scenery, no people, no face, no glowing elements, no snow, no text.