I haven't gone any further with the idea; I used a 1024 x 1024 greyscale image with the cells of differing shades of grey to give varying heights. That was applied to the One Sided Square primitive. The colour is from a Granite node mixed with the greyscale map.

Maybe a higher res, say 4096 x 4096, made tileable would give better results. Reducing the border size of the cells and blending into the cell area would make things smoother, too.

Note to self: Never try to type in a room full of shouty children.

Coppula eam se non posit acceptera jocularum.

My Store

My Gallery