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Is it possible to apply a material to a face and apply a different material to the same face but with the opposite normal?

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You can only use one material per face, but you can set up your material to use 2 different node setups and use the "Backfacing" output of the geometry shader node as a factor for a mix node.

In this example, the backface is showing the Blue emission shader, and the front face is showing the red one. Backface

enter image description here

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  • $\begingroup$ Would there be a way to use UVs to place part of a large image in one side and a different part on the other side? $\endgroup$
    – lindal
    Oct 19, 2023 at 4:04
  • $\begingroup$ youtube.com/watch?v=a_-m7VIUNfY Each of the walls in this model is a separate plane. I want to use a single plane for each of the the back-to-back walls. $\endgroup$
    – lindal
    Oct 19, 2023 at 4:14

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