SY Rigged Water Iray 3 brings you something all-new in the Rigged Water series: dForce simulation! Though originally intended for fabric, dForce can be used to pour a bucketfull of water droplets over objects in your scene and drape water for showers, streams and waterfalls over any prop or character.
You can lay the included two stream props in any indentation and sim them to create a streambed that fits. There are also a pair of puddles that can change shape based on the terrain. Just load these props into your scene, click a Recommended Settings preset, and hit Simulate!