F-22 model adaptation, 2026-09-05

Model source: https://github.com/racerretrocoder/Flightgear-F-22A-Raptor
Original F-22.ac Git blob: 7641f33d6dcf046aac80600c6b8b21a227e66406
Model and adaptation: GPL-2.0. License: source/LICENSE.md
Three.js r170: MIT, copyright 2010-2024 Three.js Authors.
The complete Three.js MIT license is retained in the containing HTML.

Changes: exterior-only selection, gear doors closed, coordinate conversion, nominal span/length normalization, triangulation, crease-aware normals and procedural neutral paint. Original FlightGear texture artwork is not used.

Rebuild geometry (Python with numpy and Node.js):
python convert_ac.py
node bake_mesh.js

mesh-data.json is the resulting data used as F22_MESH_DATA by model-v2.js. Viewer JavaScript and UI source remain directly readable in the containing HTML file.
