[X3D-Ecosystem] Could an engineer look at this problem in Rigid Body Physics?

[Holger Seelig]

Use:

RigidBodyCollection {
  collider CollisionCollection { 
    collidables [X3DNBodyCollidableNode, ...]
  }
  bodies [RigidBody, … ]
}

—
Holger Seelig
holger.seelig at yahoo.de


> Am 24.02.2026 um 15:15 schrieb John Carlson <yottzumm at gmail.com>:
> 
> I took out containerField="collider"
> 
> I don't see how CollisionCollection helps at all yet.  I've tried various permutations.  I guess it lets other nodes know what's going on parameterwise.  But If it's a child of RigidBodyCollection, should it be a parent of the RigidBodyCollection's children?
> 
> John
> 
> On Tue, Feb 24, 2026 at 7:47 AM Holger Seelig <holger.seelig at yahoo.de <mailto:holger.seelig at yahoo.de>> wrote:
>> 1. There is a CollisionCollection within a Transform but CollisionCollection has containerField `collider`, thus it will not appear in the Transform.
>> 
>> 2. There is a RigidBodyCollection within the CollisionCollection, but has nothing to do there, it should be a child of a Transform or Group or so and the CollisionCollection should be child of the RigidBodyCollection.
>> 
>> That’s what I can say so far.
>> 
>> Best regards,
>> Holger
>> 
>> —
>> Holger Seelig
>> holger.seelig at yahoo.de <mailto:holger.seelig at yahoo.de>
>> 
>> 
>>> Am 24.02.2026 um 14:25 schrieb John Carlson via X3D-Ecosystem <x3d-ecosystem at web3d.org <mailto:x3d-ecosystem at web3d.org>>:
>>> 
>>> I'm trying to prevent the poncho/chainmail from sliding down the body.
>>> 
>>> I got as far as differential equations, springs and stuff.  I know a lot more about light than rigid body stuff.  I know basic stuff like gravity constants.
>>> 
>>> I could try to get AI to help me.
>>> 
>>> I haven't checked the syntax of this file.
>>> 
>>> I recommend Sunrize.
>>> 
>>> Would smaller and more spheres help?
>>> 
>>> John
>>> <hanim_rigidbody_chainmail.zip>-- 
>>> X3D-Ecosystem mailing list
>>> X3D-Ecosystem at web3d.org <mailto:X3D-Ecosystem at web3d.org>
>>> http://web3d.org/mailman/listinfo/x3d-ecosystem_web3d.org
>> 

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