Stuck trying to move a curve by a mesh's self.PolygonPosition

[Alan Fregtman]

Hey guys,

I have a curve with as many points as there are polygons in this mesh.
The mesh is being deformed and I want the curve's pointpositions to
match the mesh's PolygonPosition ICEattribute. Any ideas?

I could make it follow with location searches but I'm trying to keep it light.

Any help appreciated.
Cheers,

-- Alan

[David Barosin]

Hey Alan.  I just did something like this yesterday. 

Use a Build Array from Per Point Data node to grab all the polygon positions in an array.

use the indices of the curve points to select in array.  Seemed pretty light. 

[Florian Eberle]

hi alan

try this (attached pic)

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Flo Eberle
Lead Modeling Artist/
Technical Director

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[Ciaran Moloney]

Are you on 2012? If so try the array from set node to get an array of polygonpositions. Then lookup the array values using you curve point indices.

Ciaran

[Alan Fregtman]

Hmm, I'm in 2011.5 which seems to be missing "Build Array from Set".

On Wed, Sep 14, 2011 at 11:40 AM, Florian Eberle <f...@pixable.de> wrote:
> hi alan
>
> try this (attached pic)
>
> On Wed, Sep 14, 2011 at 17:28, Alan Fregtman <alan.f...@gmail.com>
> wrote:
>>
>> Hey guys,
>>
>> I have a curve with as many points as there are polygons in this mesh.
>> The mesh is being deformed and I want the curve's pointpositions to
>> match the mesh's PolygonPosition ICEattribute. Any ideas?
>>
>> I could make it follow with location searches but I'm trying to keep it
>> light.
>>
>> Any help appreciated.
>> Cheers,
>>
>> � -- Alan
>
>
>
> --
> Flo Eberle
> Lead Modeling Artist/
> Technical Director
>
> _____________________________________________________________________________________________________
>

> PiXABLE STUDIOS GmbH & Co. KGBuchenstra�e 16 b

> 01097 Dresden
> Tel.: +49.351.563.4136.21
> Fax.: +49.351.563.4136.16
> mail: i...@pixable.de
> web: www.pixable.de
> facebook:�www.facebook.com/PixableStudios
>
> --

> Unser Kurzfilm "Grisella" ist f�r den animago AWARD 2011 in der Kategorie
> "Beste Postproduktion" nominiert. Erfahren Sie mehr �ber den Film auf

> www.grisella.com
> Der PiXABLE-Newsletter: Anmeldung auf www.pixable.de
>
> _______________________________________________________________________
> IMPRESSUM:
> PiXABLE STUDIOS GmbH & Co.KG, Sitz: Dresden, Amtsgericht: Dresden, HRA 6857,

> Komplement�rin: Lenhard & Barth Verwaltungsgesellschaft mbH, Sitz: Dresden,
> Amtsgericht: Dresden, HRB 26501, Gesch�ftsf�hrer: Frank Lenhard, Tino Barth

>
> IMPRINT:
> PiXABLE STUDIOS GmbH & Co.KG, Domicile: Dresden, Court of Registery:
> Dresden,
> Company Registration Number: HRA 6857, General Partner: Lenhard & Barth
> Verwaltungsgesellschaft mbH, Domicile: Dresden, Court of Registery: Dresden,
> Company
> Registration Number: HRB 26501, Chief Executive Officers: Frank Lenhard,
> Tino Barth
>
>
> ______________________________________________________________________

> Diese E-Mail enth�lt vertrauliche und/oder rechtlich gesch�tzte
> Informationen. Wenn Sie nicht
> der richtige Adressat sind oder diese E-Mail irrt�mlich erhalten haben,

[Alan Fregtman]

How do I use the "Build Array from Per Point Data" compound exactly?
PolygonPosition is per-face not per-point so I'm not sure how that
would work.

It appears to output a location, but getting the PolygonPosition from
that location just gives me garbage. I must be doing something wrong.

[David Barosin]

Here's a scene.