Open Brain Coral

An open brain coral 220 mm across sitting directly on sand: a fleshy oval dome puffed into rounded lobes with deep meandering valleys carved between them, a rim that bulges out over its own skeletal base, in flat crimson with hard-boundary green valleys.

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