I want a way to generate procedural cracks like in the pictures below:
I’ve been trying to do it with Voronoi textures, but have so far been unsuccessful:
Does anyone have ideas for how to do this?
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2$\begingroup$ A few pointers : It's hard to decipher your node group, maybe try to post a higher res screenshot, use a 2D texture instead of 3D to get rid of the thick bands, use a gradient texture instead of a color ramp to get a smoother gradient, use a noise texture to vary slitghtly the input coordinates $\endgroup$– GorgiousCommented Oct 5, 2021 at 16:19
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$\begingroup$ I've fixed the image, and used a 2D texture, but I'm confused about what you mean by the gradient texture? $\endgroup$– AntigrammerCommented Oct 5, 2021 at 16:32
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This is the best I could do:
Feel free to mess around with the sliders. You can customize the hole in the middle, and the cracks' thickness and size.
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$\begingroup$ Just letting you know, your last image is apparently linked from another site rather than embedded, unfortunately a site that my ISP doesn't agree with, so it's coming up as broken. $\endgroup$ Commented Oct 6, 2021 at 13:38
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$\begingroup$ Interesting, since I just drag and dropped the images onto the page, so it should be embedded. I'll edit the answer and try again, see if it works. $\endgroup$– GeriCommented Oct 6, 2021 at 15:22