RE: constrain nulls to cloth vertices

["Andre DeAngelis" <andre.deangelis(at)ubisoft.com>]

I discovered a similiar issue a few years back with using a cloth sim as a cage deformer.

 

I found that this would only work if I plotted the cloth to shape animation.  Must have something to do with refresh.  I think you’ll find the same applies here.

 

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From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Jeff Powell
Sent: November 30, 2006 9:56 AM
To: XSI(at)Softimage.COM
Subject: constrain nulls to cloth vertices

 

Hi,

 

This seems pretty straightforward on the surface but I can’t get it to work. I rarely use cloth (XSI or Syflex) so please bear with me J

 

I’m trying to constrain some nulls to an animated (XSI cloth sim) flag; one per vert. For argument’s sake, shape animating the flag is out of the question J

 

If I mute the cloth sim and create a ‘cluster with center’ for each vert, when I move each resultant cluster centre null, the vert follows as expected…the vert is constrained to this null, however I need the opposite of this; I need a null constrained to each vert. So I think if I constrain another null to each cluster centre, all will be well; nulls will follow nulls.

 

However as soon as I unmute the sim, the cluster centres don’t follow their respective clusters on the cloth, so there’s no point in further constraining anything to these; it’s as if the cloth sim ignores/overrides any constraints.

 

Am I being dumb here? What’s the best way to constrain anything to the verts of sim animated object? Is it possible?

 

TIA,

 

Jeff.

 

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