Colour-Light Signal

Two-aspect colour-light signal: a black signal head with two hooded lenses on a white-bordered backboard, on a tubular post about 4.5 m tall with a ladder and a small working platform, on a concrete base.

风格：low-poly, flat-shaded vertex colors, no textures, 2 materials: the shared opaque one plus a distinct surface (glass, water or chrome), which stays its own mesh through mergeAssets rather than merging into the rest; shares palette and scale with its kit