Mesh Grass No Cross Mesh Floor, The Mesh Floor Act Like Boolean Mask.

Effects over:
- PCG Mode (you should to active this plugin to see effect)
- Foliage Tool
- Landscape Tool (paint material over terrain)
- Tall Grass

SEE THIS VIDEO.
https://drive.google.com/file/d/1zcd4RdermbVpyyHozA1FaahOFxCPQsg9/view?usp=sharing

PCG Plugin should to be active