are there any way for making the loop cut not going to certain vertex group in the mesh ? as you see in the image when i click on ctrl + r the loop cut go through all the character from her head to her foot but i want to not add any new loop cut to the character head so are there any way for that ?
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$\begingroup$ This is result of the Edge Flows. If you want to "stop" Loop Cut you will need to redirect it or stop it completely by using triangle. $\endgroup$– cgslavCommented Jan 12, 2018 at 23:05
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$\begingroup$ Funny that we get this question, it is usually the other way around. Basically just do what those people unintentionally did. Create a triangle or a NGon, which I am pretty sure is generally an undesirable thing. $\endgroup$– Duarte Farrajota Ramos ♦Commented Jan 13, 2018 at 1:51
2 Answers
Switch to Face Select Mode, select the faces you want to keep and hide them with H. Then do your loop cut. After that, reveal your faces with ALTH.
The loopcut will have added a new vertex but it will not have cut through. So, if you have hidden some quads, you will get an ngon. Not ideal but you can retopologize it later.
As long as the Edge Flow is intact the Edge Loops will continue utill reaching a break
(Like Tri or N-Gon) So basicaly if you break the edge flow in two spots you can control where the edge loops will go.
Do it by pressing K for the Knife Tool and drawing a Tri one face above where you want your Edge Loop to stop then you Select the edges created with the Knife tool > X>Dissolve Edges