[Sidefx-houdini-list] cloth troubles

Javier Meroño javiermerono at hotmail.com
Tue Apr 1 11:51:28 EDT 2014


AFAIK when rigid body objects work with any other solver such as flips, almost always it´s not Bullet but a volume representation of the object. 
I recall a recent masterclass talking about this.
It looks like it´s the same thing with FEM.
regards,


Javier Meroño

> Date: Tue, 1 Apr 2014 16:05:46 +0200
> From: zoran.arizanovic at gmail.com
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] cloth troubles
> 
> sure Dominic
> me neither, but somehow this change from cloth solver to fem for cloth
> although it brought amazing new features left cloth hanging behind and
> documentation was not overhauled for it
> but i guess until H14 we will figure things out ;)
> 
> 
> Zoran Arizanovic
> 
> http://zoranarizanovic.blogspot.com/
> LinkedIn <http://www.linkedin.com/pub/zoran-arizanovic/4/177/295>
> vfx reel : http://vimeo.com/28605448
> http://www.imdb.com/name/nm2902303/
> 
> 
> On Tue, Apr 1, 2014 at 3:40 PM, Dominik Kirouac <dk at shedmtl.com> wrote:
> 
> > I'm not an expert, still learning this new solver. Maybe you can take a
> > look at the Doc for this info... I'm not sure it's written. But Volume are
> > a sure shot.
> >
> > But I think FEM use both and volume collision can be more accurate. You
> > can also try using VDB for collision, it's faster to compute.
> >
> > -In your SOP tube geo node, use convert VDB node ( distance VDB and change
> > voxel size to get more accurate definition of the volume).
> >
> > -in you dop static obj node, volume mode to volume sample, you also have
> > to set the division size and in proxy volume load you vdb from sop.
> >
> >
> > *Dominik Kirouac // SHED **
> > *FX Artist
> > 1410, RUE STANLEY, 11E Étage MONTRÉAL (QUÉBEC) H3A 1P8
> > T 514 849-1555 F 514 849-5025 WWW.SHEDMTL.COM <http://www.shedmtl.com/>
> >
> >
> > Le 01/04/2014 9:17 AM, Zoran Arizanovic a écrit :
> >
> >> thanks Dominic
> >> is  FEM cloth is using rbd volume representation for collision not bullet
> >> concave mesh?
> >> how do i know which modul of dynamics uses bullet and which one not?
> >>
> >>
> >> Zoran Arizanovic
> >>
> >> http://zoranarizanovic.blogspot.com/
> >> LinkedIn <http://www.linkedin.com/pub/zoran-arizanovic/4/177/295>
> >> vfx reel : http://vimeo.com/28605448
> >> http://www.imdb.com/name/nm2902303/
> >>
> >>
> >> On Tue, Apr 1, 2014 at 3:15 PM, Dominik Kirouac <dk at shedmtl.com> wrote:
> >>
> >>  Hi Zoran,
> >>>
> >>> take a look at your tube static object/collisions/RBD solver/Volume
> >>>
> >>> Since you are using the "Use volume based collision detection", you got
> >>> to
> >>> give more divisions to your volume to get accurate border detection.
> >>> Change
> >>> setting in the surface won't affect the collision until you uncheck the
> >>> "Use volume based collision detection", btw I think volume collision is
> >>> better than Surface.
> >>>
> >>> You can "show collision guide Geometry to see what the collision really
> >>> look like.
> >>>
> >>> Cheers
> >>>
> >>> *Dominik Kirouac // SHED **
> >>> *FX Artist
> >>> 1410, RUE STANLEY, 11E Étage MONTRÉAL (QUÉBEC) H3A 1P8
> >>> T 514 849-1555 F 514 849-5025 WWW.SHEDMTL.COM <http://www.shedmtl.com/>
> >>>
> >>>
> >>> Le 01/04/2014 8:05 AM, Zoran Arizanovic a écrit :
> >>>
> >>>  hi
> >>>> could someone please take a peak at this
> >>>> it is driving me crazy
> >>>> http://forums.odforce.net/topic/19822-cloth-penetration/?p=118803
> >>>>
> >>>> cheers
> >>>> Zoran Arizanovic
> >>>>
> >>>> http://zoranarizanovic.blogspot.com/
> >>>> LinkedIn <http://www.linkedin.com/pub/zoran-arizanovic/4/177/295>
> >>>>
> >>>> vfx reel : http://vimeo.com/28605448
> >>>> http://www.imdb.com/name/nm2902303/
> >>>> _______________________________________________
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