stretchy spline IK tool?

[Steve Davy]

Looking for a clean and simple way to create a stretchy spline IK rig that allows for spline IK type animation but will also stretch out joints when the curve is elongated.

Anyone got any suggestions?

[Ryan O'Phelan]

You could make a relationship between arc length of your curve and scaleX  of the joints via a utility node?

Stretchy functionality is not really an ikspline concept though. Maybe look into a ribbon type rig instead?

R

On Oct 29, 2012 7:29 PM, "Steve Davy" <stevi...@hotmail.com> wrote:

Looking for a clean and simple way to create a stretchy spline IK rig that allows for spline IK type animation but will also stretch out joints when the curve is elongated.

Anyone got any suggestions?

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[Janak Thakker]

+1 on what Ryan said, here's a tutorial on how to set it up:

http://tutnuts.blogspot.se/2010/04/stretchy-spine-rig-with-spline-ik-maya.html

I've used this kind of setup for rigging anything from long dino necks to long limbed thingies. To speed up the attribute connections I recently found this nifty little script that makes the whole setup a lot more straight forward:

http://www.creativecrash.com/maya/downloads/scripts-plugins/c/attrconnector-mel

What are you rigging? :-)

Cheers,

Janak

2012/11/4 Ryan O'Phelan <desig...@gmail.com>

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janak thakker | web: http://www.fatlittleindianboy.com/
cell (SWE): +46(0)733 900 984

[Steve Davy]

Perfect, both on the tutorial and the script.

It's a scientific animation... have to rig stretchy bonds on metallic ions that help bind antibodies to a test surface. Sexy!

Thanks!

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Date: Mon, 5 Nov 2012 10:44:02 +0100
Subject: Re: [maya_he3d] stretchy spline IK tool?
From: ja...@fatlittleindianboy.com
To: maya...@googlegroups.com

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[Yaleh paxton-harding]

Your other option is a wire Deformer and as someone else mentioned a ribbon setup, that giving you the most control.

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[Yaleh paxton-harding]

Btw, if you did opt for using a wire which is the fastest one of the three, you should note that you won't really have any twist controls. Anyway it sounds like you have a method chosen now, just throwing out a few thoughts.

[Janak Thakker]

You're welcome! Heh, sounds sexy indeed! :-)

2012/11/6 Steve Davy <stevi...@hotmail.com>