Microduck 3D model
Creator: Pollen Robotics
Source: https://github.com/pollen-robotics/microduck_rl/tree/273afe0b31c4ab365b9ff806a927b63ac92b5ddd/src/mjlab_microduck/robot/microduck
Pinned commit: 273afe0b31c4ab365b9ff806a927b63ac92b5ddd

Upstream README license notice:
This project is licensed under the Apache 2.0 License. See the LICENSE file for details. 3D model files are licensed under Creative Commons BY-SA-NC.

The Apache-2.0 license applies to upstream software and is not a replacement for the 3D model license notice.
For this project, the user reports direct permission from the creator. This text does not independently grant or expand rights.

Changes: converted visual STL parts plus articulated MJCF hierarchy into Y-up GLB, evaluated upstream STAND pose, simplified triangle counts, omitted floor/collision geometry, centered on ground, retained original base colors, added browser PBR roughness.