Here’s another update, now you can see the reflections of the sky in the water, and the water is nice and wavy, but you may notice that the sky has turned into a box. There’s still some kinks to work out, but the technique of drawing a cubemap of the sky and using it to calculate what is reflected maps quite well onto buildings. Once the creases are ironed out (literally), reflections of the rest of the world should follow smoothly.