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<resolved> Driving chainSpring with interpolated transform while keeping fk control


I’m trying to drive every link of a chain spring with an interpolated transform between two other chains, but I’d like to preserve the FK controls.

I’ve iterated on every solution I can think of, but they all break the hierarchy that the chain spring relies on and fixes the chain in space. I sort of got close with a mult_matrix but the fk orientation didn’t follow.

I feel like I’m missing something simple. Perhaps even a practical explanation of how the chain spring functions would help, as I seem to be missing the logic.

(Edit: I think the issue may have been with my expectation/assumption that the FK controls would follow translation without breaking. I thought my controls were breaking the rig, but it in fact the aims werent updating. Solved via a few pair blends and a parent above the fkControl)