Gpu-driven guide fur systems make the magic happen with selective strand simulation that keeps things smooth during weather events focus on high-detail guides that control nearby fur strands, creating natural movement without the processing strain

Main system works like this: pick key strands to simulate physics on those first, let surrounding fur follow their lead works really well with weather effects since the gpu handles all collision math at once instead of grinding through every single hair. Getting good frame rates means the system constantly adjusts fur detail based on whats happening - distant fur gets simpler, close-up fur stays detailed and when things get busy the memory streams in just what you need

Something interesting about the wind system, it applies force to whole fur sections instead of individual strands which is pretty clever for keeping things running well even with all that optimization youll notice some slowdown in busy town areas, but thats more about npc processing than the fur itself