Re: setting the pivotposition for animation

["Tim Leydecker" <BauerOink(at)gmx.de>]

Hi Frank,

thanks for the great collection of tips, I still mix up
working modes and centers on a regular basis,
so this is really appreciated.

Cheers

tim

P.S: O.k. I´ll give XSI RBD a try now!

----- Original Message ----- 
From: "Frank Lenhard" <franky(at)ixdream.com>
To: "Tim Leydecker" <XSI(at)Softimage.COM>
Sent: Monday, November 27, 2006 9:18 AM
Subject: Re[2]: setting the pivotposition for animation


> you can always change the alignments of the centers (better before you
> put the objects into hierarchie) by selecting the object an switch to
> center (top right of the screen). then adjust you center as you like.
> this one will be used for animation. i constantly align the centers so
> they fit with other objects or bones.
> you then animate the rotation in ADD mode, not local. otherwise you
> might run into gimbal lock.
>
> otherwise, the xsi RBD are easy to setup. just give it these two hours
> of learning.
>
>
> ciao
> franky
>
>
> Sunday, November 26, 2006, 6:47:54 PM, you wrote:
>
> TL> Naw, I didn´t lose you, I ran away. Simply because
> TL> I haven´t used the XSI RBD´s at all yet, while at least
> TL> I have limited knowledge about the Maya ones, can´t
> TL> say wether they are better or not, would want to argue
> TL> about that anyway but feel more at home there still...
>
> TL> Thanks for the heads up!
>
> TL> Cheers
>
> TL> tim
>
>
> TL> ----- Original Message ----- 
> TL> From: "Kim Aldis" <XSI(at)kim-aldis.co.uk>
> TL> To: <XSI(at)softimage.com>
> TL> Sent: Sunday, November 26, 2006 6:10 PM
> TL> Subject: RE: setting the pivotposition for animation
>
>
> > > You've lost me. Children always follow the rotations of their parents and
> > > you can always rotate them independently, at least insofar as the parent
> > > rotation will be added to that of the child.
> > >
> > > Either way, why complicate things by introducing Maya. Why not just use
> > > XSI's RBDs. They're perfectly adequate.
> > >
> > > > -----Original Message-----
> > > > From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
> > > > Behalf Of Tim Leydecker
> > > > Sent: 26 November 2006 13:23
> > > > To: XSI(at)Softimage.COM
> > > > Subject: Re: setting the pivotposition for animation
> > > >
> > > > Hi Kim,
> > > >
> > > > I´m unsure as the which is the best way to setup hierarchies in XSI
> > > > that allow independent childrotations (either via their objectpivot or
> > > > a null/locator in the hierarchy?) as well as correctly follow the
> > > > rotations of their parent objects.
> > > >
> > > > In a nutshell, I´ve a mechanical object designed (an operation table)
> > > > that I´d like to "shake" using Maya Rigid Body Dynamics, think of a
> > > > slight earthquake type effect building up and "translating through"
> > > > the objects. It´s quite hard to animate such an effect by hand, so I´d
> > > > like to animate a proxy I "push" using noise in the SRT and bake the
> > > > result into the SRT´s of nulls/locators, then transfer that over to XSI
> > > > onto my highrez OP table, since all shading and rendering is done
> > > > there. I´d need to have a simple way of constraining things and making
> > > > sure the pivots align and animate correctly...if everthing else fails,
> > > > I´d do the combination in Maya and transfer finally baked
> > > > vertexpositions for all objects but that would be way harder to handle
> > > > and bloat files quite a bit.
> > > >
> > > >
> > > > Cheers
> > > >
> > > > tim
> > > >
> > > > P.S: This would be extramile, I´m not sure I can finish this effect in
> > > > time.
> > > >
> > > > ----- Original Message -----
> > > > From: "Kim Aldis" <XSI(at)kim-aldis.co.uk>
> > > > To: <XSI(at)Softimage.COM>
> > > > Sent: Saturday, November 25, 2006 10:41 PM
> > > > Subject: RE: setting the pivotposition for animation
> > > >
> > > >
> > > > > You're talking about animating rotations locally? I wouldn't do that,
> > > > unless
> > > > > you're talking about single axis animations and stringing nulls
> > > > together.
> > > > >
> > > > > How you rig and how you animate depends on what you want to achieve,
> > > > surely.
> > > > >
> > > > >> -----Original Message-----
> > > > >> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On
> > > > >> Behalf Of Tim Leydecker
> > > > >> Sent: 25 November 2006 18:55
> > > > >> To: XSI(at)Softimage.COM
> > > > >> Subject: setting the pivotposition for animation
> > > > >>
> > > > >> Hi guys,
> > > > >>
> > > > >> animated hierarchy, rotating hinges type question:
> > > > >>
> > > > >> I´m used to setting the objectpivot of objects to the desired
> > > > >> rotational axis, which isn´t the best idea to use in XSI due to the
> > > > >> advanced manipulation modes and the recommended way of animating
> > > > >> strictly in local mode, so what do you guys do? Place a null
> > > > inbetween
> > > > >> everywhere or do you use bones with the appropriate elements
> > > > >> grouped/parented on those?
> > > > >>
> > > > >> I´d like to keep crossplattform compatibility with Maya, e.g. bring
> > > > in
> > > > >> animation over into XSI and would obviously like to keep things
> > > > simple
> > > > >> and small so I´d guess just exchanging nulls would be best?
> > > > >>
> > > > >> Cheers
> > > > >>
> > > > >> tim
> > > > >>
> > > > >>
> > > > >>
> > > > >> ---
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