Mud and Rut Tile

A 4 x 4 m ground tile of churned site mud, 0.06 m slab with base at y=0, tiling-edge vertices at exactly +/-2 m and flat sides, with wheel ruts and track pad marks set on the 4 m module so ruts line through across the tile seam; water knob floods those ruts.

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