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so im working on a scroll and wanted to a add paper cut to the scroll, i did it by using the knife however when i turn back the subdiviosn modifier (i also have the solidify modifier) back the cut looks weird. is there any way to fix that?

https://drive.google.com/file/d/1PbXFAukCquUTm6ZZpc9mBqxkkKYH3X30/view?usp=sharing

enter image description here enter image description here

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  • $\begingroup$ Your topology is probably bad, maybe show your wireframe or even share this part of your object? pasteall.org/blend $\endgroup$
    – moonboots
    2 days ago
  • $\begingroup$ thanks! i posted the wireframe picture of the object and a google drive link to the object $\endgroup$
    – Sien Krich
    2 days ago
  • $\begingroup$ please authorize access ;) $\endgroup$
    – moonboots
    2 days ago
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Example of a mesh before Catmull-Clark subdivision:

Subdivision rounds the mesh:

Removing parts of the geometry interferes with the way it is rounded by the subdivision algorithm:

And so you could remove that part with a boolean (easier) or a mask modifier (harder since you need to predict how the modifier will move the vertices) after subdivision modifier...

If you don't like the way some paths get wibbly-wobbly like on the 3rd image, you can retopo your mesh to better represent the flow of the object, and add holding loops to limit the range of the modifier:

You can also do a lot with creases (ShiftE):

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