Quote - def gonna try this later .... awesome .....

 

just playing with tweeking/editing nodes to turn the blood into mud .... while reading your posts ...

Turning the mud into dust is also simple. Really, all you have to do is greatly lower the specular value for the mud to get dust. This, and make a map or procedural material for the dust.

Again, its all about using the mask. Just set up the specularity for the skin and then for the dust before mixing them together with that Blender node and mask. Same thing goes for the bump/displacement and the diffuse.