Introducing new verts to mesh ends up with pinching effect

Hi,

After introducing new edges in order to have correct geometry ( quads) G moving it along y axis I end up with pinching effect. It 's only 3 verts though. Any idea what is going here?

Thanks T

You have face/s inside your model, delete it and recalculate normals for safe measure.

Hmm…oddly enough I have recreated it on the similar model and it works without a problem.

Just found out edge is outside the object in object mode as if it does not belong there although in edit mode it is part of the mesh.

Update:

Some interesting findings. When verts are bridged by F, pinching effect occurs. When connected by Knife tool all pinching points are gone. I thought by using F it’s possible to create both edge and face. In case of edge it should not be a problem.

If you select two vertices and press F (Make Edge/Face), this will only create a new edge, not connected to any faces; it will not split an already existing face. For that, you want to use Vertex -> Connect Vertex Path (default hotkey J), or the knife tool.

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Brilliant. Many thanks!