Rock Armour Revetment

A 4 m bay of placed rock armour at the wall toe, a built structure rather than terrain: two courses of angular grey granite blocks 0.8 to 1.2 m across, battered 1:1.5 to a crest at 1.2 m over a 2 m deep footprint.

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