Water Blob

Large organic water terrain blob, about 8m across, a flat still water surface for lakes and rivers: irregular rounded outline of 10-14 points, water top a hair below the standard ground level (about 0.04m) so it reads sunken next to terrain blobs.

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