This is a paid asset, but now you can download Simple Fur and Wind Shader 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
Simple Fur and Wind Shader v1.0
This packages features three simple fur shaders, two for static fur (either with low or high resolution) and one for winded fur.
All shaders use heightmap and vertex displacement and a demo scene is provided to show how the asset can and should be used. There are multiple adjustable values and different fur/displacement textures that will definitely help you to use the asset fast and without much additional work. Also this Asset is easily extendable with own textures and heightmaps.
The wind shader can be used for nice animations of the heightmaps to simulate constant wind effects. With some tricks you can even simulate the rings caused by the wind of a helicopter! This is also part of the demo scenes.