subdivision surface issue

[songo]

Hello, it seems like the subdivision surface modifier wants to create some weird geometry in the center of my wheel, i don’t know how to fix it, can someone help me ?

[songo]

recreating the central point got rid of the issue,
i let the question here just in case someone need it 🙂

[numbernine]

Good to see you’ve managed to fix it. For future reference, whenever subdiv gives you weird results check for the following :

– Multiple vertices on top of one another. Select all your verts –> alt+m –> merge by distance to see if that fixes it
– The normals on your faces. Turn on backface culling and/or select your model and shift + N / shift+ctrl+n to recalculate / flip your normals.
– Interior faces
– Check the sort order / individual settings of your modifiers

[songo]

it was probably the normals in this case, i haven’t checked it, Thank you 

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