This is the #1 fix for "shadow acne" (random dark spots on the model’s face/body) or floating shadows.
files to your models or stages to enable the high-quality rendering on those specific objects. Shadow Distance mmd excellent shadow
: The effect's .x file allows users to adjust smoothing by changing the accessory size (typically to 100 or -100 for optimal results). This is the #1 fix for "shadow acne"