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I am generating layered patterns using procedural textures. that is easy enough in a single material using mix shader nodes.

enter image description here

what I would like to achieve though is to be able to render this, with each pattern as a separate pass, so that I can make manual adjustments to each individual layer in photoshop afterwards.

so my first thought was to simply split up the node setup into two different materials:

enter image description here

as you can see, this does not work. I would like to understand why, and what the correct approach would be.

the only alternative I was able to came up with, is to write a script that renders the object several times, but only with one material assigned. afterwards I'd have to combine the separate output files in a layered photoshop file.


I'm using the blender 2.8 beta, by the way.

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  • $\begingroup$ Maybe you could render the layer with that object for both textures separately and then render a "clown pass" to be able to change between them in photoshop... $\endgroup$ – Robert Roth Jul 6 '19 at 15:01

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