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Bug / Crash  Rod dynamic attachment is broken
#3
(Yesterday, 09:39 AM)josemendez Wrote: Hi,

Quaternions q and -q represent the same orientation. This means that an attached object may flip 180º degrees and consider this its new rest rotation if rotated away from the original rest pose.

The simplest workaround is to create 2 attachments instead of one. This removes aliasing between orientations 180º degrees apart from each other.

kind regards

I am confused, how/why quaternion gives the same orientation while it's pointing the opposite direction? I think I am missing something.
Also it's not problem with rotation of that object - it's problem with rotation of rod particle, because cube in my case is kinematic for particles.
The workaround does not work, it makes rod wiggle like crazy, then randomly stops for a moment when it becomes more stable for several seconds (see attached image).

I think dynamic attachment calculates quaternions/matrices incorrectly, because static attachment works correctly (custom script as well).


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Messages In This Thread
Rod dynamic attachment is broken - by Qriva0 - 08-08-2025, 06:07 PM
RE: Rod dynamic attachment is broken - by Qriva0 - Yesterday, 10:20 AM
RE: Rod dynamic attachment is broken - by Qriva0 - Yesterday, 11:58 AM
RE: Rod dynamic attachment is broken - by Qriva0 - Yesterday, 12:29 PM