+1, this would be really useful to keep things tidy in complex material setups, specially in places where you calculate/process one thing and then plug it in multiple places (i.e. a mask used in color/roughness/spec, etc)
read the entire thread 
+1, this would be really useful to keep things tidy in complex material setups, specially in places where you calculate/process one thing and then plug it in multiple places (i.e. a mask used in color/roughness/spec, etc)
read the entire thread