OTOY Forums

Many times I have needed surfaces with multiple layers of materials.

• - Rain drops on glass
  - Car shader (glossy coat on top of metallic rough surface)
  - Screens on devices or appliances
  - Graffiti on concrete walls
  - Labels on objects/machines
  - Ink/pencil on paper
  - Explosion decals on a surface

While technically these could be accomplished with a Mix Material node, sometimes you need multiple layers that are physically stacked. Sometimes I can accomplish this by duplicating the mesh and expanding the surfaces just barely and apply a separate material for this, but this is not a good solution, especially for multiple layers. Imagine if I had a wall to put a ton of posters/graffiti/decals to place on it. Would I need another Mix Material with each one and have a huge chain of them? Not elegant.

In real life many surfaces have layers of thin materials on them. I think this is the correct (and physically based solution) to this problem.

Yeah, I really wish they would implement this method if working. I like having the nodes and whatnot but for some things, like what you mentioned, it is unneeded complexity and just plain inefficient

Really? Is no one else interested in this?

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Have to agree on this =) would be nice & welcome feature upgrade if OTOY would consider. Current material mixing is a bit limiting, Yeah You can find some workarounds, but..

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