Foliage Layer masking

Define Layers Foliage

You can define a layer number in a collection or in a foliage.

Make sure each foliage has a different number to isolate certain kinds

Exclude Layers Foliage

Place an influencer on your level, indicating the layer number(s) to exclude in influencer menu in the WorldScape actor.

Noise Mask

The "Use Noise Mask" parameter allows you to spawn the foliage in a procedurally generated mask.