Overview
- The paper describes reinforcement-learning policies trained on animator-created references to reproduce Olaf’s stylized gait within real-world constraints.
- A hidden mechanical system employs asymmetric six-degree-of-freedom legs beneath a soft foam skirt to preserve the character’s screen-accurate look while walking.
- Operational solutions include an impact-reduction reward that lowered footstep noise by about 13.5 dB and a thermal-aware policy that eases motion when actuators heat up.
- Physical specs list a height of about 88.7 cm and weight near 14.9 kg, with 25 total degrees of freedom across legs, neck, arms, eyes, jaw and brow.
- Disney confirms park deployment at World of Frozen in Hong Kong Disneyland and at Disneyland Paris’s Disney Adventure World, which opens March 29, 2026.