2
$\begingroup$

I have a problem with the topology of a concave corner in a text I have traced. The corner must be sharp so I placed some proximity edges to avoid the subsurf modifier smoothing.

This is how I managed a convex area. I don't know if the topology is correct, but I don't have any problem:

enter image description here


I tryed something similar in a concave area, cutting through one more loop:

enter image description here


When the subsurf is applied, the result is really bad. It seems like there is a hole somewhere, or some rogue faces, but it's not. Everything is "ok".

enter image description here


I can't understand why this happens. It's even all quads. There is clearly something I don't understand, so I hope to receive some help.

Thank you in advance :)

$\endgroup$
  • $\begingroup$ i think it's your diamond quad that's causing the problem. Maybe add some supporting loops to stop it from collapsing on itself. $\endgroup$ – Xtremity Apr 27 '16 at 21:27
  • $\begingroup$ @Xtremity yes, like you said, the diamond shape is the cause of the problem, but I'm not able to stop it. I could cut all the way through the opposite edge, but it's something I would want to avoid. I really can't understand why this happens. The geometry looks legit to me. $\endgroup$ – Crisoberillo Apr 28 '16 at 7:46
1
$\begingroup$

If I understand you correctly you want to get rid of the soft edges that are produced by the subsurf/multires modifier? You may want to look if you can fix that by setting the mean crease in the object's option bar to 1.

You possibly need to play around with the value for different edges but usually it gets the job done.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.