Hi Metin and thanks a lot for your reply.

I asked you about riggable retopology because IMHO it's a very fascinating branch of 3d gfx.

If, like me, you are interested in this topic, you could check these articles. :

1) Elastic Implicit Skinning
http://rodolphe-vaillant.fr/?e=59
https://vimeo.com/105364564

2) Data-Driven Interactive Quadrangulation
https://www.youtube.com/watch?v=H8K5CyQB_kc

3) Pixar Animation Studios Open Subdivision Technology Review
https://www.youtube.com/watch?v=Y-3L9BOTEtw


See you!