Shingle Tile

A 4 x 4 m shingle tile on a 0.06 m slab, base at y=0, tiling edges exactly at +/-2 m with dead-flat sides; grade 0..1 runs from fine pea shingle to fist-sized wave-rolled cobbles, each pebble a faceted lump in greys.

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