This is a paid asset, but now you can download Beast Free.
Detail this asset from Unity Store: Original Link
Beast v2020.1 (Latest version)
“If possible, please buy the package to support the developer”
Beast is an advanced tessellation shader integrated into Unity’s Standard shader and offering:
• Four type of tessellation:
2) Distance Based
3) Edge length
• Recalculation of dispalced Normals and Tangents.
• Supports lightmapping and global illumination.
• Fully compatible with Unity’s post processing and image effects.
• Faster shadow caster pass with controllable tessellation LOD.
Shaders are Curved World compatible.
If you need tessellation shader – it can be only Beast.