Re: XSI constraints not updating when running script.

[Nicolas Langlois <nicolasl(at)buzzimage.com>]

Raffaele,

Yes there was a refresh problem due to expressions linked to customPSets 
if I recall well.

Try plotting the blendweight param (if it works) on the constraint first 
(so that you have a keyframed animation on it instead of an expression) 
or just replace the expressions by keyframe if it's easy to replace.

Then plot them and it shall refresh properly. That solved some of our 
problems here!

Also make sure the constraints are not fighting each other (like pose + 
position active at the same time).





Raffaele Scaduto-Medola wrote:
> Hi Nicolas,
>
> Thx for the post, I checked to make sure there wasn't any animation on 
> the constrain object.
> What I did notice is that the we actually have 3 constraints (as this 
> ball goes from one hand to another, and the world), and the 
> blendweight channels are tied to expressions on a seperate control.
>
> Could their be a refresh problem with expressions controlling 
> blendweight on constraint objects not evaluating ?
>
> Is there a way in XSI to link to channels together without creating an 
> expression ?
>
> THX
> RSM
>
>
> On Thu, 30 Aug 2007, Nicolas Langlois wrote:
>
> > Raffaele,
> >
> > I had some problems plotting during 6.0 and 6.0.1. Check to see if 
> > there's also some other type of animation on the constrained object 
> > (may it be FCurve or else) cause that used to cause problems on my 
> > side. XSI wasn't enforcing the constraint like it was supposed to and 
> > this led to bad refresh and plotting. Delete that extra animation if 
> > possible and your constraint should refresh properly.
> >
> >
> > Raffaele Scaduto-Medola wrote:
> > > Hello all,
> > >
> > > A bit more technical problem.
> > > I am curious to know if anyone has experience this type of problem. 
> > > I am baking down position/rotation information from a complex rig 
> > > system to a set of null (motion trackers). The information is 
> > > plotted as part of a script I build. But for some reason, only for a 
> > > ball that is constraint to a character the animation information is 
> > > not getting correctly plotted.
> > >
> > > So my question, for anyone who might have experience this in 6.02. 
> > > Does anyone know or have experience with contraints not 
> > > updating/getting evaluated correctly during a scripted operation 
> > > that goes through a set of frames ?
> > >
> > > Is there anyway to either check on this, or force refresh on 
> > > constraints, during a script execution ? (IE the interface is not 
> > > updating all together, but I want to make sure the constraint get 
> > > properly evealuated ).
> > >
> > > And lastly, does anyone have any sample code to find all constraint 
> > > object in a scene (or at least on a given model)?
> > >
> > > Again any information is greatly appreciated.
> > > THX
> > > RSM
> > >
> > > _____________________________________________________
> > > Raffaele Scaduto-Mendola - www.turbolinea.com
> > >                raffaele(at)turbolinea.com
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> > --
> >
> >
> > Nicolas Langlois
> > Senior/Lead Rigger/TD
> > Buzz Image
> >
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> _____________________________________________________
> Raffaele Scaduto-Mendola - www.turbolinea.com
>                raffaele(at)turbolinea.com
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Nicolas Langlois
Senior/Lead Rigger/TD
Buzz Image

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