Cut Loop

Hello!
I have a complex mesh (it is a scanned object) - do I understand right, that it is not possible to do a cut loop in a complex mesh? I do not get the purple ring to set the cut.

Thank you very much, KIMA

As its name implies it cuts loops. If you don’t have a loop then of course it won’t work. Use the knife tool (K)

ur model must be in triangles, thats common with scanned objects…

a scanned mesh is often “insert your worst word here” but blender has tools to make life fun again :wink: have a look at remesh , retoppo ,shrinkfit an hour spent cleaning the mesh will save you hours of headaches