Shake Boobs Overlay

Adds rhythmic breast shake motion driven by the music beat. Intensity sets the amplitude; Speed scales the beat frequency (power-of-2). Motion Pattern blends between horizontal-only (−1), vertical-only (1), or combined (0) shake direction.

Time Pattern selects the rhythm: Constant shakes every beat; Pulse alternates on/off every other beat; Gradual follows a predefined 16-beat pattern that builds intensity over phrases. Abs Mode bounces back at the neutral position for a more exaggerated effect.