It’s pretty easy to create rain in Blender, but it’s much more challenging to make it affect materials realistically. In this Blender tutorial video, we’ll investigate how we can utilize wetmaps to create a realistic rain-wetting effect using dynamic paint!

Download Example File: https://drive.google.com/open?id=13LWq29k-FEuj2uUTynkUVFz88mvNUQU8

Continued Blender Learning: 

Dig more into Dynamics: https://cgcookie.com/course/fundamentals-of-dynamics