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I'm following a course from CGCookie (Basics of character modelling). I'm trying to pull one of the vertices backwards:

there's a mirror modifier on, as well as skin and subsurf.

enter image description here

All the geometry gets warped:

enter image description here

Same thing happens when I'm trying to extrude another vertex from the bottom one.

Can anyone please help? I tried asking the question on the course's page, but the mods deleted it for some reason.

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  • $\begingroup$ Forgot to mention - there's a mirror modifier on, as well as skin and subsurf. $\endgroup$
    – El Pollo Diablo
    Jun 7, 2015 at 15:33
  • $\begingroup$ Does this help? blender.stackexchange.com/questions/27394/… $\endgroup$
    – Ray Mairlot
    Jun 7, 2015 at 15:36
  • $\begingroup$ I'm afraid not. That was the first thing I checked. Thanks for the clarity edit though ;). $\endgroup$
    – El Pollo Diablo
    Jun 7, 2015 at 15:39
  • $\begingroup$ I think I'd just better give you the .blend, since character modeling is completely new for me and I'm flying blind here. link $\endgroup$
    – El Pollo Diablo
    Jun 7, 2015 at 17:28
  • $\begingroup$ And here's the part of the course I followed: link $\endgroup$
    – El Pollo Diablo
    Jun 7, 2015 at 17:28

1 Answer 1

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Skin Modifier is generating the geometry from the root vertex (marked with dashed circle around it), and if its not on the mirror axis that will generate mesh errors.

To fix that select the vertex of the groin area and in Skin Modifier click Mark Root.

enter image description here

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  • $\begingroup$ Useful clarification of the problem statement. $\endgroup$
    – atomicbezierslinger
    Jun 7, 2015 at 17:29
  • $\begingroup$ That fixed it! Thank you so much for the answer and for the explanation! I was so sure I tried doing it before. $\endgroup$
    – El Pollo Diablo
    Jun 7, 2015 at 17:36

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