The Damper class is a generic second-order critically damped system that does
one linear step of the desired length of time. The only parameter is
DECAY_MILLISECONDS. This common parameter makes all states converge at the
same rate regardless of scale. xNormalization is a number to provide the
rough scale of x, such that NIL_SPEED clamping also happens at roughly the
same convergence for all states.
The Damper class is a generic second-order critically damped system that does one linear step of the desired length of time. The only parameter is DECAY_MILLISECONDS. This common parameter makes all states converge at the same rate regardless of scale. xNormalization is a number to provide the rough scale of x, such that NIL_SPEED clamping also happens at roughly the same convergence for all states.
Taken from Google model-viewer.
https://github.com/google/model-viewer/blob/ec527bc1d0e1bcb4421fa192a7e62bbc5764db91/packages/model-viewer/src/three-components/Damper.ts#L1