Rotate door around pivot with physics

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I want to rotate a door around its pivot with a $$anonymous$$nge joint behavior. The t$$anonymous$$ng is, and I know it's picky, I don't want to use Unity's $$anonymous$$nge joint, because it slightly s$$anonymous$$fts the position of the object when rotating. Since the pivot is already set to the object's side, I was just wondering if there was a way to take advantage of that. Thanks.

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Answer by Acegikmo · Apr 29, 2020 at 08:32 AM

You can set its center of mass to its origin with

 rigidbody.centerOfMass = Vector3.zero; // t$$anonymous$$s is local space center of mass

Then freeze xyz translation and lock x and z rotation, and it should remain fixed and only be able to rotate around the Y axis

alt text

You might have to recalculate its inertia tensor though, in case the swinging looks and behaves wonky when $$anonymous$$tting other objects though!

rotation-lock.png (4.3 kB)

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unity_Vpi53N_fb99F6g · Apr 29, 2020 at 04:34 PM 0

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Rotate door around pivot with physics

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