feature request: possibility to unlink fields

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It would be nice to have the possibility to link certein fields to certain 
rigid bodies. Maybe this can be solved through sets?

Original issue reported on code.google.com by mmkp...@googlemail.com on 3 Apr 2012 at 2:26

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Thanks for the request.

Do you have any info about sets in Maya, urls etc?

Original comment by erwin.coumans on 3 Apr 2012 at 3:08

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Not really I'm more an artist then a developer, but I like the way vray handles 
stuff like this with the include/exclude lists.
Basically they add an attribute to the node in question in which you can pipe a 
set which includes the participating objects.
So one could create a field, create a set with the rigid bodies that should get 
influenced and hook them together. Maybe with a checkbox to handle those sets 
as exclude lists to invert he effect and exclude certain objects from the 
influence. Just a few thoughts.

Original comment by mmkp...@googlemail.com on 3 Apr 2012 at 4:06

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Thanks for the help.

How do you specify such set in vray/Maya? Which user interface elements? Are 
they linked in the hypergraph?

Original comment by erwin.coumans on 4 Apr 2012 at 2:47

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Again, spaking as a user:

You create sets with Create->Sets->Set. There you can drop in the desired 
objects. The connection goes from transform.Inst.ObjGroups[0] to 
set.DagSetMembers[i], see the attatched screenshot for more infos.
I would maybe add the possibility to add a custom attribute to the field, which 
allows to connect an include and an exclude set, containing the desired rigid 
bodies. Or, if that's not possible, add an include/exculde list to the 
rigidbodies themself, where you can attatch a set with the corresponding 
fields. But this could be a little bit tedious to handle when you have many 
rigids.

Original comment by mmkp...@googlemail.com on 4 Apr 2012 at 8:13

Attachments:

• sets1.JPG

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It is helpful because I'm just a novice Maya user and this limits my ability to 
improve Dynamica.

So the Create->Sets->Set doesn't influence the transform of its members, right 
(parenting or grouping does).

Do you know if and how the (old) Maya build-in rigid body dynamics allows 
control over which bodies a field influences?

Original comment by erwin.coumans on 4 Apr 2012 at 5:59

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There you can just do a Fields -> Affect selected object. That hooks up to 
connections betwenn the rigid and the field.

Original comment by mmkp...@googlemail.com on 4 Apr 2012 at 6:21

Attachments:

• fields.JPG

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[deleted comment]

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That looks like a user friendly option. How did you visualize those 
input/output connections? I searched in the Hypergraph view, but couldn't find 
it.

How can you open the 'Node Editor'?

(and thanks for educating me a bit on Maya, it helps :-)

Original comment by erwin.coumans on 5 Apr 2012 at 6:16

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Hey, I'm glad I can contribute to this great project in some way!
The screenshots are from the new nodeeditor, introduced in Maya2012 Subsc. Adv. 
Pack. It will be available to non-subscribers in Maya2013.
Which option do you mean? I really like the sets more, because they are easily 
readeable and you can change them very freely.

Original comment by mmkp...@googlemail.com on 5 Apr 2012 at 6:17

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Window -> Node Editor ;)

Original comment by mmkp...@googlemail.com on 5 Apr 2012 at 6:27

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And yes, the editor is incredibly helpful - especially when dealing with stuff 
like SOuP or similar.

Original comment by mmkp...@googlemail.com on 5 Apr 2012 at 6:29

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Did you succeeded to create this feature ? Is it released ? I might need this 
option on my work. Thanks !

Original comment by emmanuel...@gmail.com on 21 Nov 2012 at 1:02