Habitat Dome

Planetary habitat dome, footprint exactly 8x8m, low-poly geodesic dome 5m tall, off-white hull panels over a gunmetal base ring, one standard airlock collar (3m wide, 3m tall, astro orange ring) centered on one face flush at the footprint edge.

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