When modeling a 3d image using a set of 2d reference images, I use the mirror modifier to speed up modeling. When I work from the center to the outside edge, I'm fine. When I work from the outside edge to the center, I either end up with a small gap right at the threshold of the mirror edge or I end up extruding the vertices until they overlap. I can't join or merge the vertices because while I'm using the mirror modifier, I can only select vertices on one side. Any help would be much appreciated.




1 Answer 1


On the modifier properties there is a checkbox called Clipping (shown as 1 in the image bellow), it will merge the vertex as it touch the edge (prevent vertices from going through the mirror during transform).

Note: If you're not seeing the vertex because it's hidden by faces and you can't select it, you can turn off the modifier visualization (the eye icon button from 2 in the image bellow), there's also a button with the "triangle vertex" that allow you edit from the reflection too. Also, at the bottom of 3D view in the vertex selection options, there is a button with a "wire cube" that allow you to see and edit vertex though the faces.



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