Blend file is hereIn the following picture I have a noise on a mesh, and a cylinder.

I want to cut the cylinder along the edges of the noise mesh.

I tried so many methods, nothing worked..

enter image description here

  • $\begingroup$ can you add the blend file? $\endgroup$ – David Dec 15 '19 at 23:03
  • $\begingroup$ Edit: I added it $\endgroup$ – Zaak Dec 15 '19 at 23:46
  • $\begingroup$ Maybe next time, don't sculpt on a circle, or a 2D object. $\endgroup$ – Nate_Sycro27 Dec 16 '19 at 12:42

Assuming your desired end result is a solid cylinder with a textured top surface, perhaps there is another approach. Rather than using a Boolean to create the base, which is likely to generate artifacts, and badly-behaved geometry here, you could start with the whole cylinder.

  • Take your existing base-cylinder, and subdivide a top surface for it in some way. But whichever way, ensure there are at least some loops running around the circumference:

enter image description here

  • Assign the top surface to a vertex group.
  • Aim your Displace modifier at that vertex group. That way, it will displace the top surface of your cylinder, but not the rest.
  • Even then, there may be some sharp cut-offs of the displacement at the edges, leaving unrealistic thin slivers of displaced top-surface around the cylinder's circumference. So, in Edit Mode, you can edit the weights of the vertices in the group, giving them a falloff towards the outside:

enter image description here

(To edit weights in Edit Mode, select a loop of vertices. In the Item > Vertex Weights panel, adjust the weight of the active vertex, and hit the button to copy the weight to the rest of the loop)

So now you can get control over the depth of your procedural displacement as it approaches the edge of the cylinder:

enter image description here

You can see a couple of slivers sticking up at the back right of this render.. you could adjust the weights in these areas to get rid of them. You can edit the weights in other ways, if you want to achieve a different effect.

| improve this answer | |
  • 2
    $\begingroup$ Thanks a ton man!!! I really appreciate it, I have put in my consideration that the approach I took in the first place was the issue. Thank you for tour time. $\endgroup$ – Zaak Dec 16 '19 at 16:01

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.