how Constraint Nulll to point

Boris · Post by **Boris** » 03 Oct 2012, 17:28

Hello there ! i have a little question , how constraint a null to a point on the surface, so that when we drag point the null is also moving and vice versa !?

Kerro Perro · Post by **Kerro Perro** » 03 Oct 2012, 18:26

Right click > create cluster with center

Boris · Post by **Boris** » 03 Oct 2012, 19:15

Kerro Perro wrote:Right click > create cluster with center

Thank you for reply !
but , it's not enough, I need that the point of surface can control the position of null, and vice versa. when I change face shapes through blend shape all the nulls was left behind forms. how fix it ?

Kerro Perro · Post by **Kerro Perro** » 03 Oct 2012, 19:32

Whoops yeah i thought that worked - could've sworn i just used that simple method on a face once... but i seems it doesn't

Anyway this script works to constrain the null so it moves when you shape animate it - Use the "null to point" option http://xsisupport.com/2012/03/13/oo-add ... in-python/

But then the null the won't move the point - off the top of my head i don't know how to make it do both

Boris · Post by **Boris** » 03 Oct 2012, 20:14

Kerro Perro wrote:Whoops yeah i thought that worked - could've sworn i just used that simple method on a face once... but i seems it doesn't
Anyway this script works to constrain the null so it moves when you shape animate it - Use the "null to point" option http://xsisupport.com/2012/03/13/oo-add ... in-python/

But then the null the won't move the point - off the top of my head i don't know how to make it do both

nevertheless thanks for the help!

grahamef · Post by **grahamef** » 03 Oct 2012, 20:17

You can't do both -- that would be a bidirectional constraint and it isn't supported. It would create a dependency cycle. So you can have one (Object to Cluster constraint) or the other (Cluster Center deform) but not both.

Kerro Perro · Post by **Kerro Perro** » 03 Oct 2012, 20:18

Ah good i feel less stupid and lazy now ;)

Boris · Post by **Boris** » 03 Oct 2012, 20:48

Thank you guys for your active participation in the solution my problem!

Ahmidou · Post by **Ahmidou** » 03 Oct 2012, 21:32

You ca try this:
http://www.softimageblog.com/archives/209

Boris · Post by **Boris** » 03 Oct 2012, 22:03

Ahmidou wrote:You ca try this:
http://www.softimageblog.com/archives/209

Thank you very much ! it's very very useful !

EricTRocks · Post by **EricTRocks** » 25 Nov 2012, 21:58

Select the Vertex > Create Cluster. Select the Null > Constrain > Object to Cluster. Done. No need for scripts.

how Constraint Nulll to point

how Constraint Nulll to point

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