Stair Core Flight

Open dog-leg school stair occupying a 3x2m footprint, one 3m storey in two flights with a half landing at 1.5m, 0.17m risers and a tubular balustrade with a swept handrail, ending flush with the floor tile plane top and bottom so cores stack storey on storey.

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