In this Unreal Engine tutorial, I'll show you how one simple console command can drastically improve the performance of Virtual Shadow Maps in foliage-heavy landscapes. Plus, I'll show you an additional tip for removing the shadows from distant grass to further improve your FPS.
The article on Virtual Shadow Maps can be found at https://docs.unrealengine.com/5.0/en-...
The two console commands I use are:
r.Shadow.Virtual.NonNanite.IncludeInCoarsePages 0
r.Shadow.Virtual.UseFarShadowCulling 0