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I'm trying to make a simple brick texture for this archway I made, and I want to use displacement in my material. Problem is that when I attach the displacement, the faces all become detached from each other. It doesn't seem to recognize that the faces are attached and so there's big gaps in the corners. What could be causing this? I tested the same material on a basic cube and it worked fine so the problem must be with my mesh but I have no idea what the problem could be.

It's hard to tell on a still pic but here's what I mean by the detached faces (I made the scale high for the pic so it's easier to see).

enter image description here enter image description here

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Strangely, contrary to this answer, you need to disable auto-smooth to get rid of the gaps.

enter image description here

Also, add a solidify modifier, before the subdivision surface:

enter image description here

Result:

enter image description here

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  • $\begingroup$ Yeah, you can mess around with the mid and scale to make the detached faces less obvious, but that shouldn't really be necessary. I've used displacement like this before and never seen this issue before, and like I mentioned I can take this same material and attach it to a different object and the faces don't detach. It seems like it's something specific to this mesh I made. $\endgroup$
    – yovargas
    Commented Feb 11, 2020 at 16:05
  • $\begingroup$ would you mind sharing your file or specifically this mesh via blendswap ? $\endgroup$
    – Gorgious
    Commented Feb 11, 2020 at 16:16
  • $\begingroup$ Sure thing, here's the file: <img src="https://blend-exchange.giantcowfilms.com/embedImage.png?bid=4EsAXN2p" />. I put a basic subsurfed cube next to the arch for reference to show the difference. (I'd post a pic too but can't figure out how to do that in these comments for some reason.) $\endgroup$
    – yovargas
    Commented Feb 11, 2020 at 16:23

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