kurotu
Toon standard can pack some textures into a texture by using different color channel for each mask type. For example, Metallic(R) and Gloss(A).
However most of mask textures use R channel so we can’t efficiently pack them when using various masks.
  • R: Detail mask, Metallic map, Matcap mask
  • G: Occlusion map
  • B: None
  • A: Gloss map
If we could choose a color channel for each texture, we can pack mask textures with desired combinations and reduce textures usage.
Japanese summary:
Toon Standardのマスクテクスチャで使用するチャンネルを指定できるようにすることで、任意の組み合わせのマスクを1枚のテクスチャにまとめてテクスチャ枚数を減らしやすくしたいという要望