Oh nevermind... found it.
On 3/24/06, kim aldis <kim(at)cg-soup.com> wrote:
>
> that would be my first guess. Try running a cycle dependancy check.
>
>
> ________________________________
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
> Nick
> Sent: 24-March-2006 08:00
> To: XSI(at)Softimage.COM
> Subject: Re: Orientation constraint jitter
>
>
> Anything odd in your setup? Any funky loops? Is your upvector a child of the
> constrained object or similar setup?
>
>
>
> >
> > Gene Crucean wrote:
> >
> > > Yeah I should have been a little more clear. It's upvectored. I've
> > > tried all sorts of things like plotting,
> > > freezing things, disassembling and rebuilding from scratch. All sorts
> > > of random attempts. If you saw the animation, it doesn't really look
> > > like an upvector issue either.
> > >
> > > I just tried a render on a single render node and I think that worked.
> > > Interesting. I'll know tomorrow when I get back to work.
> > >
> > > Thanks Raff
> > >
> > >
> > >
> > >
> > >
> > > On 3/23/06, *Raffaele Fragapane* <jaco(at)thejaco.com
> > > <mailto: jaco(at)thejaco.com>> wrote:
> > >
> > > if a direction constraint isn't upvectored, the resolution of the
> > > transform is left to XSI's heuristics.
> > > Solving such a situation in a consistant manner, without blatant
> > > flipping, is absolutely NOT trivial.
> > >
> > > my guess is that you aren't upvectoring such constraint, which
> > > means you
> > > are resolving a plane by its normal and are giving no input
> > > whatsoever
> > > to XSI about how to orient the roll.
> > >
> > > add an upvector or, if the character neve directs the eyes past the
> > > zenith, just use an arbitrary axis.
> > >
> > > if you have an unstable solution to the transform and you ARE
> > > upvectoring, then it's a job for bug-reportMan
> > >
> > > ******************************
> > > | Raffaele Fragapane |
> > > | Rising Sun Pictures |
> > > | "Remember, TD is for TopDog" |
> > > ******************************
> > >
> > >
> > >
> > > Gene Crucean wrote:
> > >
> > > > ehh, meant direction constraint. doh!
> > > >
> > > > So Dan, you're sounds like it was popping or something. How come
> > > only
> > > > a few frames? My eye literally shakes a half degree or so
> > > constantly
> > > > through the whole animation.
> > > >
> > > >
> > > > -gc
> > > >
> > > >
> > > >
> > > > On 3/23/06, *Dan Yargici* <dan(at)imajonline.com
> > > <mailto:dan(at)imajonline.com >
> > > > <mailto: dan(at)imajonline.com <mailto:dan(at)imajonline.com>>> wrote:
> > > >
> > > > Gene Crucean wrote:
> > > > > Anyone have an orientation constraint cause rotation jitter?
> I
> > > > have an
> > > > > eye ball that's freaking out. The funny thing is that it
> > > doesn't
> > > > > twitch when I do captures, only renders freak out.
> > > > >
> > > > >
> > > > >
> > > > > --
> > > > > Gene Crucean
> > > > > Generalist
> > > > > www.quietman.net <http://www.quietman.net>
> > > < http://www.quietman.net> <http://www.quietman.net>
> > > > Yup, I had this today with the first frame of each packet
> > > sent to the
> > > > farm.... Just had the pleasure of tracking down and
> > > deleting about 20
> > > > rogue frames from about 10 different passes and re-rendering
> > > > sequentially.
> > > >
> > > > To clarify, orientation constraints, like you said.
> > > >
> > > > DAN
> > > >
> > > > ---
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> > > > Generalist / TD
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> > > http://www.quietman.net >
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