DB3D writes:
Hello everyone, BD3D here.
I'm glad to announce that Scatter Season 3.0 is out on the Blender Market today!
With this release comes a new non-destructive distribution mask workflow. You'll be able to non-destructively create vertex-groups masks for your particle-systems from your terrain features, like slope, altitude, curvature, slope-orientation, water flow and many many more masks...
Here are a few examples:
https://gfycat.com/fragrantweeklyeyra
https://gfycat.com/filthyhollowdesertpupfish
You can learn more about the possibilities that offer our new workflow on our new documentation website.