Re: spacer rigs

Date : Fri, 02 May 2008 14:58:51 -0400
To : XSI(at)Softimage.COM
From : David Gallagher <daveg(at)blueskystudios.com>
Subject : Re: spacer rigs

I will check!

Eric Thivierge wrote:

Hey David,

If I'm understanding you correctly, have you looked at Steven Caron's post on XSI Blog about dorritos? Is this what you're looking for?

Thanks,

Eric Thivierge, XSI Database Admin
www.xsidatabase.com
eric(at)xsidatabase.com
Forum Username: EricTRocks


David Gallagher wrote:


Oh, I guess one method would be to parent the second mesh and all the joints as a whole to the traveling mesh, but I'm looking for a way to more discretely parent controls around the body.



David Gallagher wrote:


Does anyone have any ideas of workarounds for "spacer rigs". It's common in the Maya world at least to rig a second mesh and pipe in the result as a live blendshape. So, the second mesh is skinned to joints, for instance. Some of the joints, you might want direct control over, but they can't leave their location. In order to get them to ride with the main rig but only engage when actually directly used, you make "spacer" controls that mirror the actual joints, parent them to some part of the body, then pass their numeric transform values only back to the real joints sitting at global center.


I think this is pretty standard, but I've heard of alternatives, such as inverting the shape from certain deformations, cancelling out the unwanted deformations.

Anyway, I'm interested in any alternatives to spacer rigs that are used.


What would be optimal, is if you could transform the same joints in two different ways. One which just changes their location in space, and another which makes the deformation.




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David Gallagher
Character Development Lead Animator, Blue Sky Studios

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