This is a paid asset, but now you can download Grass Physics Asset for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Grass Physics Asset v1.16
(Tested with Unity version 2020.3.23f1)
The Grass Physics Asset is an intuitive and easy way to implement physics simulation to grass in your project.
DirectX 11 is not required!
Supported platforms:
All platforms that supports standard grass.
High performance:
Scaleable from low to high end!
Easy to use:
You can implement this to your existing project and get great results with just a few clicks.
Two physics modes in one package:
• Simple physics simulation (more efficient, works on mobile)
• Full physics simulation (more realistic)
Suppoted render pipelines:
• Built in Render Pipeline
• Universal Render Pipeline
Supported third party assets:
Most assets should work without explicit support.