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Can someone teach me how to create this rhombus shape procedurally (not geometry nodes) or link a greate resource so I can learn it from? enter image description here

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2 Answers 2

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Any way of generating rectangular cells with distance-from-edge would do. Then you can rotate the texture, and scale after rotation. (That means the inverse of that transform on the space the texture is measured in.) Here, being lazy, and using a zero-random 2D Voronoi's 'Distance From Edge'..

enter image description here

  • Using Float Curve to shape the height profile
  • Cheating, by shading the grooves with a darker tint. This may not be needed in different lighting conditions, or if using displacement rather than Bump, as in this example.

enter image description here

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  • $\begingroup$ Nice - float curve - I never would of thought - my method instead was to pull my hair out trying to find the right grayscale balance that both brought out the grooves in a somewhat ill-defined manner, whilst nor simultaneously destroying the overall shape of the "diamond peaks" - all without visual nodes in the shader graph - how is it blender doesn't have this feature yet? $\endgroup$ Jul 10, 2022 at 21:40
  • $\begingroup$ Hi @ChristopherBennett ! You used to have to use RGB Curves to do that sort of thing.. Haven't I seen visual nodes, somewhere? Was that an Add-On, or a branch, or have i just gone doolally? I've just got used to shift-clicking bits of my tree.. it would be nice, though... $\endgroup$
    – Robin Betts
    Jul 10, 2022 at 21:45
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    $\begingroup$ You've probably seen it lots of places - Unity, Unreal, Substance Designer, even obscure engines like Godot do have, and have had, a visual graph for a many years now. There probably is some hard to find, paid addon that might create something of that nature, but I think given how far blender has come, it deserves to have it come stock. It's in my "wish bag" of things I wish blender had. ;) $\endgroup$ Jul 10, 2022 at 21:54
  • $\begingroup$ Found the addon - blendermarket.com/products/node-preview?ref=236 $\endgroup$ Jul 19, 2022 at 2:35
  • $\begingroup$ @ChristopherBennett Ahh! That's the one. I saw it in its free-preview days. $\endgroup$
    – Robin Betts
    Jul 19, 2022 at 6:56
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Try something like this - it's just a couple of Wave Textures, tilted at a 20 degree angle and mixed together. I used the original textures for the mix as well as adding some "highlights" with the color-ramped sections to make the "grooves" more defined - the "dark" end of the color-ramps are not black, but a lighter grey (not sure that's clear in the photo.) At the end, I added some "Grunge" from a Noise Texture to make the surface more bumpy:

Waves

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