[WIP#2] Custom Multi-channel Textures for Faces (TEXTURING.XYZ)

Update on my custom substance painter material for faces
WIP #1: https://www.artstation.com/artwork/W2L8Q3

The idea is to project "multi-channel maps" from texturing.xyz onto a mesh,
just like in MARI. So all your texture Infos, channels, etc are overlapping correctly with one stroke.