Is it possible to extrude a face without leaving a hole / gap behind? See animation below. I would like it to remain a closed / filled face.
I'm trying to avoid having to go back and fill in all the holes I may need to create after extruding.
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$\begingroup$ Hi :). Just keep in mind this would lead to non-manifold geometry. Unless that's what you want. $\endgroup$– jachym michalJul 19, 2022 at 8:08
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$\begingroup$ No, I don't want that is there another way I should be doing this? $\endgroup$– StillJul 19, 2022 at 8:12
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$\begingroup$ inset to value one with 'i', then extrude. I'm surprised though that it does what you show $\endgroup$– YvainJul 19, 2022 at 8:19
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$\begingroup$ @Yvain doing a inset with a value of 1 just makes the face smaller, and the hole is still there just smaller. $\endgroup$– StillJul 19, 2022 at 8:26
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$\begingroup$ Did you try it ? Inset at zero maybe to keep the same size and then extrude, you should keep your bottom... don't forget to recalculate normals after $\endgroup$– YvainJul 19, 2022 at 8:35
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1 Answer
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That's the way extrusion works when there's another face next to the one you extrude:
You can still fill the face but it's not a good topology to have more that 2 faces connected to an edge:
To have a good topology give thickness to your bottom faces:
