Here’s a quick MEL wiggle expression for Maya’s transformation channels.
This is similar to After Effects’ wiggle() expression.

Code is not allowed on YouTube descriptions so here's the link to the full expression. Hope it helps =)
[ Ссылка ]

Note: By default, the translate Y and Z frequency has a 1.1 (and ~0.9) multiplication to vary the animation on all 3 axes to avoid spatial linearisation.

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