This should happen to the ground:

http://img3.wikia.nocookie.net/__cb2...uins_5AF_1.jpg

and how it just gave a nice effect to everything

http://img2.wikia.nocookie.net/__cb2...uins_5AF_2.jpg

making the areas genuinely look wet

http://img1.wikia.nocookie.net/__cb2...uins_5AF_3.jpg

Right now when it rains, it's as if the water is just falling through the world.