Noob Question : How would I go to work at creating falloff maps in blender. For example in the creation of realistic looking water. Does blender have a build in function to create these.
Thanx 
I inviteyou to look on the workshop thread I opened
https://blenderartists.org/forum/viewtopic.php?t=32763&highlight=
Look all the works, you can obtain a lots of responces… 