10
$\begingroup$

When unwrapping an object, there are two options for the Method to use: Conformal, and Angle Based. What is the technical difference between these two methods?

enter image description here

I usually leave it at Angle Based, but sometimes that distorts tight geometry and I switch to conformal. So basically I just blindly see which looks better project by project, I am interested in how they work.

Note: I am aware of this question and answer, but that more addresses the use of the two methods, I am looking for the technical difference.

$\endgroup$

We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

1
$\begingroup$

Conformal Uses LSCM (Least Squared Conformal Mapping). This usually gives a less accurate UV mapping than Angle Based, but works better for simpler objects. (As describled by blender user manual)

Attached is the link to the White paper on LSCM

http://www.cs.jhu.edu/~misha/Fall09/Levy02.pdf http://alice.loria.fr/publications/papers/2002/lscm/lscm.pdf

$\endgroup$
  • 3
    $\begingroup$ Please avoid link-only answers. Someone should be able to find an answer to the question from reading your answer without going anywhere else or reading any 10-page paper. I specifically asked for the technical difference between the two methods. (BTW, your two links are to the same document.) $\endgroup$ – PGmath Jan 8 '16 at 14:36
  • $\begingroup$ Well technical as it is, the answer isn't a short one so I thought future questions of such nature could be addressed through understanding those technical papers. The reason why there were 2 links is that if one fails there is another one to it. And the topic cannot be easily addressed in one post anyhow "technically". $\endgroup$ – hawkenfox Jan 8 '16 at 15:56

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.