Pass-Box Hatch

A small, sealed pass-box hatch unit for transferring items between rooms, designed to fit into a 0.6m x 0.6m opening.

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