Not sure if this is functionally possible using this method, but it’d be really useful if I could create groups / sets and be able to assign a shader to that…like being able to assign a shader to an object properties, but keep all of the geometry level shader connections in tact. Basically having the same shader ovveride control results you get if you make a collection on a render layer, but this would be nicer having more control on a group without having to use render layers.
Would it be possible to do this using vray extra attributes on group nodes? I have tried but didnt get any results.
The only way I can think of to get anything close, is to either setup render layers, or to setup a switch shader in every scene material, so you have the base / hero shader, and something to switch to, like a clay or diagnostic shader of some kind.