Engineering crew - model and animation credits

Original model: Animated Human
Author: Quaternius
Model page: https://poly.pizza/m/c3Ibh9I3udk
Author's original release: https://www.patreon.com/posts/free-lowpoly-14855801
Downloaded GLB: https://static.poly.pizza/170235d2-cdeb-4cb2-a82f-4828585138fe.glb
License: Creative Commons CC0 1.0 Universal / Public Domain
https://creativecommons.org/publicdomain/zero/1.0/
Accessed: 2026-11-07

The downloaded file is preserved as engineer-human.glb (698,560 bytes).
It contains a skinned human mesh with 41 joints, 4,733 vertices and 1,578
triangles, plus eight original animation clips. This scene uses the original
Idle, Walk and Run clips; the remaining clips are retained in the source GLB.

Scene adaptations:
- Independent skeleton clones and animation mixers for each of 12 people.
- Runtime engineering workwear colors and reflective vest bands on the
  existing skinned geometry; original joint indices and weights are retained.
- A safety helmet attached to the source Head bone, following head animation.
- Shared mesh buffers, automatic distance animation updates and instanced
  contact shadows.
- Site navigation, random patrol, evacuation, waiting and return-to-work
  behavior are implemented by this project.

Official Three.js SkeletonUtils.js (r170) is supplied in vendor/addons/utils.
Its MIT license is included in THREE-LICENSE.txt.

Evacuation and flight are visual scene behavior. Radius and timing values are
display-scene parameters; this is an artistically assembled demonstration base.