# Foliage Layer masking

#### Define Layers Foliage

You can define a layer number in a collection or in a foliage.<br>

![](https://76368384-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Mfo4Lr0jJ_GjLKGCOfM%2Fuploads%2FGEhedxtcSjRkwbXxuJsz%2FPicture9.png?alt=media\&token=9a04dcd6-fc99-40cf-808a-619fc73b679a)

![Make sure each foliage has a different number to isolate certain kinds](https://76368384-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Mfo4Lr0jJ_GjLKGCOfM%2Fuploads%2Ft4slmGvqv0L2MFmosZ09%2FPicture10.png?alt=media\&token=2666d352-b6a7-4361-969d-9e0491071759)

#### 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.