Thalek posted at 7:21 AM Sat, 22 July 2023 - #4470816

I liked the displacement mapping better, as it gave a rougher appearance, but I couldn't figure out how to keep the surfaces from floating above the seams of the object.

The surface might float because there is some positive displacement pushing the surface out. Since you only want negative displacement for the holes, you could use a Math node to subtract some value from your displacement map. I'm not sure how the values map to the gray scale but you should be able to come up with a decent answer with a little trial and error.

May also need some subdivision if you use superfly, but that looks like firefly to me.