CGTalk > Software > Autodesk Maya
Login register
Thread Closed share thread « Previous Thread | Next Thread »  
 
Thread Tools Search this Thread Display Modes
Old 02-08-2013, 04:02 PM   #1
gagn
Veteran
 
gagn's Avatar
portfolio
Gabriel G
Animator
Sweden
 
Join Date: Aug 2002
Posts: 93
Is it possible?

I'm wondering if it's possible to chop a polygon up in cross section NURBS curves?
I've made an image (using a texture) to illustrate what I want. Those rings should be NURBS curves.

I need the curves to aim a laser that will be "printing" the shape. I'm comfortable with the other parts of the concept.

Any ideas? Thanks!

 
Old 02-08-2013, 04:40 PM   #2
cgbeige
Expert
 
cgbeige's Avatar
portfolio
Dave Girard
Opinions are mine. You can't have them.
San_Francisrococo, USA
 
Join Date: Jul 2005
Posts: 7,002
are you looking to output this to a printer to construct? 123Dmake does exactly that:

http://www.123dapp.com/make

edit: Oh wait, I think you're looking to do it in animation. Sorry, I don't know how to do that but there might be a script on creativecrash to do it.
 
Old 02-08-2013, 05:23 PM   #3
antweiler
Expert
 
antweiler's Avatar
Robert Kopf
Senior 3D-Artist
MBL Development
Hamburg, Germany
 
Join Date: Mar 2003
Posts: 545
Hmmmm... I think I saw someone demonstrating an effect like this using invisible planes cutting through the character, representing the lines. He used only intersection lines from the Toon options (Toon creates dynamic updating lines, where the planes and the character intersect).
edit: I see, that you need NURBS Curves, dont know if you can convert the toonlines to NURBS...
 
Old 02-08-2013, 05:33 PM   #4
V_man
Veteran
Chris Voellmann
Senior Technical Artist
Bluepoint Games
Austin, USA
 
Join Date: Mar 2005
Posts: 11
You should just be able to use Edit Mesh--> Project Curve on mesh to accomplish this.

With the hand model facing upright, create a horizontal nurbs curve, duplicate the curve with Duplicate Special, creating the number of copies you need vertically, select the hand an all the curves, and then run Project Curve on mesh.

Hope that's what you were looking for.
 
Old 02-08-2013, 08:00 PM   #5
ytsejam1976
Maya Light Finder
 
ytsejam1976's Avatar
portfolio
Dario Ortisi
3D modeler and render
Dallara Engineering at Simulator
Italy
 
Join Date: Apr 2008
Posts: 895
Select edge loop Modify\Convert\Polygon Edges to Curve.
__________________
www.darioortisi.it
MayAdvanced Blog
My youtube channel
 
Old 02-13-2013, 05:04 PM   #6
gagn
Veteran
 
gagn's Avatar
portfolio
Gabriel G
Animator
Sweden
 
Join Date: Aug 2002
Posts: 93
Thanks for your excellent advice, people!

V_man: I'm going for the Project on Mesh-tool (I never noticed it before)
It's working just how I wished for.

Now, is it possible to connect all these Nurbs curves somehow? So that I could run a locator along all of them in a Motion path?
The idea is to make a beam that travels along the shape of the model, from base to fingertips.
 
Old 02-13-2013, 05:56 PM   #7
V_man
Veteran
Chris Voellmann
Senior Technical Artist
Bluepoint Games
Austin, USA
 
Join Date: Mar 2005
Posts: 11
Would you want the motion to be continuous, as if the curves were connected like a spiral around the hand? Or can the beam motion jump from one curve to the next?
 
Old 02-13-2013, 08:56 PM   #8
gagn
Veteran
 
gagn's Avatar
portfolio
Gabriel G
Animator
Sweden
 
Join Date: Aug 2002
Posts: 93
Continuous if possible. But it depends on how hard it is to achieve. Jumpy is acceptable too.
 
Old 02-15-2013, 11:10 PM   #9
gagn
Veteran
 
gagn's Avatar
portfolio
Gabriel G
Animator
Sweden
 
Join Date: Aug 2002
Posts: 93
V_man: Thanks for pointing me in the right direction.
I've solved this effect now. The key to success was a lofted surface (conical) with a blendshaped nurbs curve in the lower end. Apply an animated beam-like texture and the result is just what I wanted.
Cheers.
 
Old 02-16-2013, 04:51 AM   #10
V_man
Veteran
Chris Voellmann
Senior Technical Artist
Bluepoint Games
Austin, USA
 
Join Date: Mar 2005
Posts: 11
Excellent Gagn, good to see you've worked out a solution and glad I could help.
 
Old 02-16-2013, 04:51 AM   #11
CGTalk Moderation
Lord of the posts
CGTalk Forum Leader
 
Join Date: Sep 2003
Posts: 1,066,481
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 12:40 AM.


Powered by vBulletin
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.