nurbs and zbrush

[marcel]

:)hello! just come back from vacations... a lot of HOT in france this summer!hope you had a fine time all around... i did'nt do a lot of things during holidays with computer,my wife having a very firm idea on that topic,I just begin to think about going from z tools to nurbs: i mean that it would be interesting to rework z forms with the tools of nurbs modelling; the process is'nt easy,to change to nurbs, and if anybody has a simplest way, it would be very fine! in this picture, the hand and arm are ztools, they are changed in nurbs forms, and then easily mixed with "industrial" forms... I'm working on a horse, half "life", half mechanic... hope to post it soon... also Very excited by the displacement map that M.Alon explained... I think it's going to open a whole new range of work between diferent software... Friendly M. http://www2.zbrushcentral.com/uploaded_from_zbc/200309/user_image-1062407027mll.jpg

[andreseloy]

Hy Marcel I am glad to know about you again with this impressive work¡¡¡ Good vacation¡¡¡
This post is superb¡¡¡ and the work you mention already interested sound very interesting and I will appreciate if you can explain a little bit to one like me that does not any background in this field, about nurbs and what program you want to work with nurbs, the kind of "mixed" work,
and for the most, excuse me for taking your time.

But the more important is that your post is just fantastic and very original and update¡¡¡

Congratulation

[Frenchy Pilou]

Hi Marcel !
Cela a chauffé cet été, c'est sur :)

Clap clap for the hands :cool:
In what program the ReNurb mixed ? (Rhino, amapi,3Dmax..)


Have happy Zbrushing!
Pilou

[ivan louette]

Comme d'habitude fantastique Marcel !!!

And of course, the same question : which nurbs program do you use ? Personnally I work with Lightwave, but it can't change n-gons (polygons with more than four sides) into subdivision surfaces. I like Wings 3D which is a free subdivision surface modeler with very useful tools and a fantastic potential (even if it's user interface is a little bit rough), and I am testing a demo of SILO (http://www.nevercenter.com/) , which is very promising and very low cost !

Kindly,
ivan

[Frenchy Pilou]

I believe that 3Ds Max makes automacticly the conversion in Nurbs model (if you want) !
Pilou

[marcel]

:) thank you! fp on a presque fondu cet été... andreseloy, it's difficult to explain in few words, but model in NURBS allow very subtle and precise, and quick change of geometry...it's used for industry models; the interest is that the form is always very "smooth", like the polygons in zbrush; but polygons and nurbs don't go "together"; you have to choose, and before the post of frenchy pilou, i was sure that ther was no easy way to translate...i use rhino, as i think the most powerful nurbs modeller; in rhino the "level curve" are functional on meshes; so if you do level curves very near, then you loft them, you have a copy nusbs, you can rebuild it more lighter, (much more), and so on... in theory: very often it's tricky, ther is "crease" and bad things in the form, and you have to split the curves, to allow a more controlled "loft"... amitiés M. Frenchy, t'es sur pour max? je connais pas du tout...(!)(si oui je vais essayer vite!) just a word about zbrush: the intuitive moddelling of zbrush is so fast that often it take much more time to "translate" than to modell!!!

[andreseloy]

Hy Marcel thanks for your quickly attention to anwser¡¡¡ I think your project is a great one¡¡¡
Congratulations¡¡¡

[marcel]

:confused: very sorry skycastle! i see your precedent post, superb hands, and realize i've given the same title! Frenchy, ther is a way to change the title, to avoid confusion?

[Skaven252]

If your post is less than 30 days old, you can click Edit Post in the first message. This allows you to also change the subject line.

(and cool artwork, BTW! :tu: )

[DMerchen]

Welcome back Marcel! I hope you had a good vacation. This is a very nice rendering, and a very interesting idea. Nicely done! :tu:

[artboy21]

glad to have to back posting marcel! everyone of your posts amazes me! i really admire your style! i am a newbie to the whole CG world, so i don't know much about NURBS, but it sounds very interesting. great piece!

artboy

[Frenchy Pilou]

Hi Marcel
Quasi sur pour Max !
Il le faisait déja pour la 2.5 alors pour la 5 et des poussières il doit ne pas y avoir de problème !
Menu Modifier /"Editer la pile"/ Convert to Nurb !

Pour Amapi 5.15 : Mode Nurb = Ctrl + B :)
Pilou
Ps Le changement de titre : aucun probleme :)
C'est toujours le bouton "Edit Post" :)

[Grub]

I heard about the heatwaves in France, Marcel- you must have quite a tan from the sun. :D
Great image and good luck mixin' it with the nurbs. :tu: :tu:

[jim coe]

Very exciting concept Marcel!
And such good modeling.

The lighting and lighting color is also spectactular.

[Reyd]

I think this might help, here (http://www.okino.com/3ddesign.htm)fro what I understand(not much) its a program that helps for converting polgons in NURBS, Id appreciate any info on the differences, what are NURBS etc.
for a confusing document on nurb and how they are calculated, or something click here (http://www.cs.wpi.edu/~matt/courses/cs563/talks/nurbs.html)

[Frenchy Pilou]

Hello Marcel
I believe that this Artist Miguel Berrocal example (http://arteclic.free.fr/vrobjects/artcurial/manoanim_l16b.htm) and solution here (http://www.johnrausch.com/PuzzleWorld/puz/manolete.htm) :) has made an incredible Horse in mixed metal :)
I must research more :rolleyes:
Pilou

[Xin]

Excellent work Marcel!

How do you import OBJ files in Rhino, since Rhino does not provide OBJ import ? Do you use a converter ? Which one ?

[marcel]

:)merci ! frenchy, ce sculpteur est interessant,de toute facon le retour d'un certain réalisme (sens large) en sculpture est dans l'air... pour aller aux nurbs, j'ai l'impression que tu confonds l'option sur primiotive initiale, aller sur nurbs ou mesh, et la conversion d'une forme complexe comme celle de zbrush en nurbs... mais,je connais pas max...peut etre... Xin, thank you: in the ressources of rhino site, you have a plug in import obj, in fact two :one free, i have, very good, an another for sale, maybe better...M.

[Frenchy Pilou]

Hellou Marcel
In Max
I don't believe that I confuse :) http://www2.zbrushcentral.com/uploaded_from_zbc/200309/user_image-1062506038ntf.jpg
Pilou

[marcel]

:) garggle frenchpil, c'est une primitive que vous me montrez la!tu ne vous confuse point sur les primitives, mais un beau gros objet zbrush, it's an another pair of manche... rhino a sorti smurf, un plug in destine a ça...a premiere vue il marche moyen moyen, et encore + laborieux que ma méthode! si tu as max, essaye avec une sphere 3d triturée, ma reconnaissance sera éternelle... (enfin maybe) amitiés !!!

[RAMSESIIV]

excellent travail et une technique incroyable Marcel...
Chapeau bas ;)

[Frenchy Pilou]

Damned !
Cela doit être possible !
J'y retourne :)
Pilou

[marcel]

:) work in progress, the mechanichal horse... as you see, the translation in nurbs of the head of the horse is very similar of the original mesh... http://www2.zbrushcentral.com/uploaded_from_zbc/200309/user_image-1062510455ppf.jpg

[Frenchy Pilou]

Beau cheval ! :cool:
Moi j'ai une fievre de cheval :D car je n'ai pas trouvé le moyen de convertir ces foutus polygones en Nurbs :(
Pilou
ps What is the Nurb Marcel's Method ?

[andreseloy]

Wow Is fantastic your aproach Marcel, you are searching a very interesting topic with a very elegant results¡¡¡
Congratulations

[DeeVee]

Different! I like this image! :) :tu: :tu: :tu: :)

[manitu]

AWESOME Modeling,really great image!! :eek:

[Stonecutter]

LOVIN' this exercise, M! :tu: :tu: :tu:
I've been playing with this general idea, with subpatch and box-modelling combos in LightWave...Although it's a different 'blend', I believe my curiosity comes from the same quest! :D ;)
Thanks for the innovative and stimulating workflow...!

[rimasson]

You can use Maya to convert poly to Subdiv and then to Nurbs.
It's the simpliest way.

[marcel]

:) stonecutter, sure, i've seen when you begin to work with lightwave; always the same question, if it'(s possible to extend the "range" of zbrush, it's "full use"of the creatives possibilitie"s of the soft... rimasson, please, have you tried to convert a complicated zform in maya? w<hat happens??? in the following picture, everytrhing is zbrush, everything translated in nurbs and very "lighted", so all the things goes to a "round" look... no texture, just an off white and colored lights... amitiés M. http://www2.zbrushcentral.com/uploaded_from_zbc/200309/user_image-1062537118sar.jpg

[Frenchy Pilou]

Bigre ! Marcel !
That's very good indeed :cool:
And your metthod for convert polygon in Nurbs ? Just "smurf" of Rhino ? Or another trick ?
Pilou

[rimasson]

In Maya you can convert a 15000 poly model into nurbs without too much problems. I knwow that's not much polys with Zbrush
If you plan to use more hi res models (100 000 - 250 000 polys), a reverse modeling program like Cyslice is much more appropriate.

[marcel]

merci rimasson... in fact, with subdivision, ztools are very heavy... i'll try maya... frenchy, it's simple, i've explained higher: you import in rhino, you use the "level curves", you loft the curves, and ok, that's done... in fact, you have always to split the curves, to avoid creases, and so on... it's never simple, and tricky, and frustrating! but as you can see on the pict join, if well done, no difference between the original form and the nurbs one, even when "rebuild", and after you can operate what you want in booleans, sweep, fillet and so on... http://www2.zbrushcentral.com/uploaded_from_zbc/200309/user_image-1062540729bqd.jpg

[Frenchy Pilou]

Thx
That's give some ideas for everybody :)
Pilou
Ps J'ai pas retouvé le cheval, je pense qu'il devait etre du sculpteur César !

[DMerchen]

Nice stuff Marcel! What program are you using with the nurbs? They look very nice! Always inspiring!

[marcel]

dmerchen the program is rhino, but i think that any nurbs program has this function... well, a last picture on this mix zbrush nurbs... Friendly M. http://www2.zbrushcentral.com/uploaded_from_zbc/200309/user_image-1062575741vzr.jpg

[Stonecutter]

Very nice, Mr. M... :tu: :cool: :tu:
The one thing aside from the tight techniques, that I always enjoy about your work, is the 'Cinematic' perspectives that so many of your images contain...I like to think of the eye of an artist, as a camera, and you have a lovely selection of 'lenses' at your disposal... ;) :cool:

[kokoro]

wonderful images. i like how you paint your images with the light. :)

[DMerchen]

Thanks for the information concerning the program. You have another fine image once again!

[Zendoftheworld]

Hi Guys,

CySlice is a great tool to use with high resolution meshes if you want to product tangent NURBS patches.

If you get the latest issue of Highend Magazine, available as of today, I give an overview of CySlice and how you can use it with your high res models created in our favorite application - ZBrush!

Regards,
Zendoftheworld...(Paul)

[Frenchy Pilou]

Some information on Cyslice (http://www.cyberware.com/products/cyslice.html) :)
And Highendmag (http://www.highendmag.com/current.html) :) Sorry Zendo, you have not give the links :rolleyes: Great Magazine ! :cool:
Hope this help!
Pilou

[marcel]

thank you zendofthe world and frenchy, but... are the prices really so high ? it's astronomic!