Is it possible?

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
Old 02 February 2013   #1
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 February 2013   #2
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 February 2013   #3
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 February 2013   #4
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 February 2013   #5
Select edge loop Modify\Convert\Polygon Edges to Curve.
__________________
www.darioortisi.it
MayAdvanced Blog
My youtube channel
 
Old 02 February 2013   #6
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 February 2013   #7
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 February 2013   #8
Continuous if possible. But it depends on how hard it is to achieve. Jumpy is acceptable too.
 
Old 02 February 2013   #9
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 February 2013   #10
Excellent Gagn, good to see you've worked out a solution and glad I could help.
 
Old 02 February 2013   #11
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.
 
Thread Closed share thread



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 09:10 AM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.