To complement my wandering terrain setup, I've also made wandering grass. Attach the emitter to the player and grass meshes will be spawned only around the player within a radius that you specify. Subscribe already! To get this to work, add a GPUParticles3D node as a child of the player (or camera) and its process material, start a new shader material and add upload this shader. If you follow the docs, you may back port this shader to 3.x with only a few edits.
Disclaimer: the shader works in alpha 10; can't guarantee if it will work with whatever comes after but I will update it when we get to beta.

The shader's here: https://drive.google.com/file/d/1wuk_...

#Godot4 #ParticleGrass