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I have an animation with 2 half spheres in blender that I need to export in web. However, before exporting, I tried to smoothen the edges with subdivision modifier. It worked with one half but the inner side of another half has these edges which I can't removethe problem

It wasn't me who created this animation so I don't really know what might cause this and how to fix it.

Please help!

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  • $\begingroup$ can you share that file? Because I am not really sure what do you mean by "I can't remove" is there some error message or anything? $\endgroup$
    – MikoCG
    Commented Nov 19, 2021 at 11:29
  • $\begingroup$ Yes, here is the link to the file xfl.jp/fdVP7y. I have no experience in working with blender, from tutorials I understood that it can be made in edit mode, but I can't select those lines. $\endgroup$ Commented Nov 19, 2021 at 11:44
  • $\begingroup$ of course you cannot remove them, you have active subdivision modifier... you first need to either apply it and then remove those edges or remove modifier $\endgroup$
    – MikoCG
    Commented Nov 19, 2021 at 11:46
  • $\begingroup$ Ok I think I got it, I know it was a dumb question, but thank you very much for clearing this for me $\endgroup$ Commented Nov 19, 2021 at 11:51

1 Answer 1

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I think you're more or less in the above situation, with one ngon face as a slide:

On the left, the shape before subdivision, one the right, after subdivision:

enter image description here

The subdivision extends faces and in consequence some blue part are going over what was orange before.

To correct it, you need to modify the inner mesh (in edit mode):

A first possibility is to select the face and bevel its edges using CtrlB. But the orange part will go outside a bit.

enter image description here

A second possibility, is to remake the face:

Delete it, select the edge, extrude and scale 0 (ES0).

enter image description here

Assign it back the orange material, add a loop cut (CtrlR) and push it near the edge.

enter image description here

and finally, select all (A) and merge (M) by distance.

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  • $\begingroup$ The first option worked like a charm! Thank you so much $\endgroup$ Commented Nov 19, 2021 at 12:08
  • $\begingroup$ If you bevel with 2 segments, (profile, say, 0).. then you can reassign the material on one side, if necessary, and the result is sharp. $\endgroup$
    – Robin Betts
    Commented Nov 19, 2021 at 12:49
  • $\begingroup$ @RobinBetts, the good man at the good moment ! do you think that's possible with GN as it is for now? blender.stackexchange.com/a/144493/19156 (and yes I know about bevel...) $\endgroup$
    – lemon
    Commented Nov 19, 2021 at 13:02
  • $\begingroup$ @lemon hehe ... comment aimed at OP, don't worry.. :) Serpinsky? Absolutely possible in GN, at first sight.. except for parameter-izing iterations, without loops or recursion? $\endgroup$
    – Robin Betts
    Commented Nov 19, 2021 at 14:16
  • $\begingroup$ @RobinBetts, yes no loops afaik... maybe impossible so (or headache)? $\endgroup$
    – lemon
    Commented Nov 19, 2021 at 14:24

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