Let me know which type of info you actually need.

Long hair in VaM often suffers from "explosions" or clipping when a character moves. Version 2.2 of this specific asset represents an iterative refinement, likely balancing collision detection (so the hair rests naturally on shoulders) with performance optimization to ensure it doesn't crash the user's frame rate during VR use.

Previous versions of long hair in VaM suffered from two fatal flaws: "collision explosion" (hair clipping violently through the chest) and performance lag. MonsterShinkai addressed these directly in version 2.2: