Stylized Grass Shader
Shadows are flickering
When using the Distance Fading or Perspective Correction feature, in conjunction with the terrain vegetation system shadows will appear to flicker.
This has been identified as a bug in the URP, and has been reported. It also occurs when placing the grass prefabs in the scene, and rendering *anything* using the terrain vegetation system. It is also reproducible in Shader Graph shaders.
A bug report has already been filed. If this affects you, please place a vote, which will bump up its priority: https://issuetracker.unity3d.com/product/unity/issues/guid/1215610
This is sometimes thrown when the shader recompiles, and appears to be a bug in Unity’s Async shader compiler. Fortunately, it’s harmless.