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I'm new to Blender and I'm really enjoying it so far. Like many beginners, I am following the donut series - haven't finished yet but I want some help with the icing. Right now my project looks like this (first pic), but I want it to have some imperfections, like in the second pic. I was thinking of maybe putting a texture or something. What are my possibilities?

I also noticed that the icing frequently has some small cracks. I searched about how to do it but couldn't understand much, so I guess I'll just forget about it for now.

Any help is appreciated, thanks! :)

1. What I've got so far2. texture and imperfections

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Maybe first deform the topology a bit to make the shape less perfect, you can also use the Sculpt tools to do it.

To make procedural crackings you could use a (Texture) Voronoi Texture (Distance output, 3D and Distance to Edge modes) that you plug into a (Converter) ColorRamp (with b&w needles pretty close to each other) that you plug into a (Vector) Bump Map that you plug into the Normal socket of the Principled BSDF. To make it a bit more natural, twist the coordinates a bit with a Noise Texture:

enter image description here

Also it would be better to mix your Voronoi with another Noise to give a bit of bumps to the surface, use a Color > MixRGB in Multiply mode:

enter image description here

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  • $\begingroup$ It worked, thanks for the explanation! One question on the last suggestion though, which node do I use to mix the two textures? $\endgroup$
    – Clara Pessoa
    Commented Aug 19, 2021 at 22:36
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    $\begingroup$ @ClaraMortenson You may want to use just this shader, and not combine it with your current shader. $\endgroup$
    – Yohello 1
    Commented Aug 19, 2021 at 23:50
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    $\begingroup$ @Clara Mortenson: you can use a Color > MixRGB in Multiply mode, then play with the factor of this MixRGB $\endgroup$
    – moonboots
    Commented Aug 20, 2021 at 4:33

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