Sauropod Nest Mound

A sauropod nest mound, one ring of a colony: a low round ring of scraped-up earth 0.4 m high on a 3.0 x 3.0 m footprint whose outer foot is a clean true circle 3.0 m across.

风格：low-poly, flat-shaded vertex colors, no textures, single shared material, so any set of these merges to one draw call; shares palette and scale with its kit