Area Mask Textures

• The character's face is divided into different areas by three textures: NMUIL Mask, Ear Neck Mask and CFULC Mask.
  
  The purpose is that you can then adjust the Roughness and Subsurface Scatter settings for the individual areas.
  
• NMUIL Mask: This texture defines the areas of Nose, Mouth, Upper Eyelids and Inner Eyelids by the data in the Red, Green, Blue and Alpha channels.
  
• Ear Neck Mask: This texture defines the areas of Neck and Ears by the data in the Red and Green channels.
  
• CFULC Mask:This texture defines the areas of Cheek, Forehead, Upper Lip and Chin by the data in the Red, Green, Blue and Alpha channels.