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So I came across some difficulties with the "Mix shader" node in cycles. I have 3 textures on a label: gold, paper and rough black letters.

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How can I mix these effects? I can make 2 textures work together, but not the 3rd one. Here's the node graph.

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Here's the reference. enter image description here

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The textures all have an Alpha channel perfectly prepared for a mask.
So you only need two mix nodes.

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But I'd recommend making four different textures instead - Color, Roughness, Metalness and Bump. Then you just plug them all into one Principled BSDF shader, have more control and an easier life :).

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