3d problem - can anyone help me? - Polyloop

sorenj · 17th November 2006, 15:10

Hi all
This looks like a great forum. I have a problem - and if anyone could help it would really be great:

I need to make (convert?) a NURBS from a high poly figure made with Maya. I am no 3d modeller myself (I make PC games

) - but the guy who made the 3d model has left me with the problem.
The 3d model of the chararcter needs to become a plastic model (for putting money in). The final product should be usable as a parasolid (file extensions would be something like .stp or .igs)
Would anyone here be able to help me with this?

Best regards
Søren Jønsson

juanmanuel · 18th November 2006, 00:00

Mmm doesn't make much sense. Nurbs are not bases in polygons, and IGES is sort of based on nurbs, so this should not involve any mesh editing at all, just saving into a different file format (if I understood correctly, that is).

However, I have no idea what file formats maya can export to that would not convert the nurbs into polygons. If maya can make obj files that recognize the nurbs data (which not all programs do, but obj comes from wavefront, one of the original developers of Maya, so it just might), you could read that obj into amapi (which recognizes this information), and from there export as either step or iges.
Amapi6 is downloadable from here in the forum, btw, so you could do this yourself, in case the maya obj supports the nurbs information...

But then again, can you read the maya file?

sorenj · 18th November 2006, 10:23

Thanks a lot
I´ll try this

Best regards
Søren Jønsson

juanmanuel · 18th November 2006, 16:13

You can also try polytrans, I think there is a trial version, and it has lots of file formats it can recognize. I don't remember if it has a functional trial version though...

Frenchy Pilou · 18th November 2006, 16:42

...you can use the free beta of Moi
(if I undertsand that you want (?)
it has normaly the best export nurbs ---> Obj file format

( Ngons, or Quads + triangles, or only triangles)
it import Iges and 3dm files format
Tell me if that works for you

Pierre-Yves · 18th November 2006, 23:29

Amapi 7.52 can convert a polygon mesh in nurbs. But it's necessary to have a good topology without too much polys. You can try with the trial version (smooth tool) then export .iges
http://downloads.e-frontier.com/us/u...e.php?cat=1349

Thomas · 21st November 2006, 16:31

Pierre Yves gave the good answer in my opinion: import your polymesh in Amapi and apply a NURBS smoothing (well, it depends of your original mesh which comes from Maya. Then, export it in STEP or IGES.

17th November 2006, 15:10	#1 (permalink)
sorenj Vertex Join Date: Nov 2006 Location: Denmark Posts: 2	3d problem - can anyone help me? Hi all This looks like a great forum. I have a problem - and if anyone could help it would really be great: I need to make (convert?) a NURBS from a high poly figure made with Maya. I am no 3d modeller myself (I make PC games ) - but the guy who made the 3d model has left me with the problem. The 3d model of the chararcter needs to become a plastic model (for putting money in). The final product should be usable as a parasolid (file extensions would be something like .stp or .igs) Would anyone here be able to help me with this? Best regards Søren Jønsson

18th November 2006, 00:00	#2 (permalink)
juanmanuel Madly in love Join Date: May 2006 Location: Puebla, Mexico Posts: 241 Images: 2	Mmm doesn't make much sense. Nurbs are not bases in polygons, and IGES is sort of based on nurbs, so this should not involve any mesh editing at all, just saving into a different file format (if I understood correctly, that is). However, I have no idea what file formats maya can export to that would not convert the nurbs into polygons. If maya can make obj files that recognize the nurbs data (which not all programs do, but obj comes from wavefront, one of the original developers of Maya, so it just might), you could read that obj into amapi (which recognizes this information), and from there export as either step or iges. Amapi6 is downloadable from here in the forum, btw, so you could do this yourself, in case the maya obj supports the nurbs information... But then again, can you read the maya file? __________________ passionately alive This is my blog This is my portfolio

18th November 2006, 16:13	#4 (permalink)
juanmanuel Madly in love Join Date: May 2006 Location: Puebla, Mexico Posts: 241 Images: 2	You can also try polytrans, I think there is a trial version, and it has lots of file formats it can recognize. I don't remember if it has a functional trial version though... __________________ passionately alive This is my blog This is my portfolio

18th November 2006, 16:42	#5 (permalink)
Frenchy Pilou What do you want me to create? Join Date: Nov 2003 Location: nébuleuse :) Posts: 5,138	For a ponctual test... ...you can use the free beta of Moi (if I undertsand that you want (?) it has normaly the best export nurbs ---> Obj file format ( Ngons, or Quads + triangles, or only triangles) it import Iges and 3dm files format Tell me if that works for you __________________ "Est beau ce qui plaît sans concept" Speedy Galerie Last edited by Frenchy Pilou; 19th November 2006 at 00:35.

18th November 2006, 23:29	#6 (permalink)
Pierre-Yves I'm Batman (in 3D) Join Date: Oct 2003 Location: Bretagne (France) Posts: 743 Images: 4	Amapi 7.52 can convert a polygon mesh in nurbs. But it's necessary to have a good topology without too much polys. You can try with the trial version (smooth tool) then export .iges http://downloads.e-frontier.com/us/u...e.php?cat=1349 __________________ "à force de tout voir, on en vient à tout supporter, à force de tout supporter, on en vient à tout approuver." St Augustin ________________________________________________ iMac G5, Amapi, Hexagon 1.21, Carrara 5, Blender 2.45

18th November 2006, 10:23	#3 (permalink)
sorenj Vertex Join Date: Nov 2006 Location: Denmark Posts: 2	Thanks a lot I´ll try this Best regards Søren Jønsson

21st November 2006, 16:31	#7 (permalink)
Thomas Always learning new stuff Join Date: Jul 2002 Location: Merignac, France Posts: 11,102 Images: 93	Pierre Yves gave the good answer in my opinion: import your polymesh in Amapi and apply a NURBS smoothing (well, it depends of your original mesh which comes from Maya. Then, export it in STEP or IGES. __________________ Polyloop owner & Administrator - no support by PM or email. Polyloop [EN/FR] - Meuuh [FR +16 ans] - Totyo [FR] - Pixologic [JOB] - Le ZBlog [JOB] - La3dpourlesnuls [FR]

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