Third-party libraries bundled with dxftonc1.com (self-hosted, no CDN, no third-party requests)
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3D viewer (/3d-viewer/) - all MIT, files are UNMODIFIED npm package files (verified against the jsDelivr / npm SHA-256 hashes)

1. three.js            version 0.160.0   MIT   (c) 2010-2023 three.js authors
   source:  https://cdn.jsdelivr.net/npm/three@0.160.0/   (npm package "three")
   files:   three/build/three.module.min.js
            three/examples/jsm/controls/OrbitControls.js
            three/examples/jsm/loaders/GLTFLoader.js
            three/examples/jsm/utils/BufferGeometryUtils.js
            three/examples/jsm/postprocessing/Pass.js
            three/examples/jsm/environments/RoomEnvironment.js
   licence: three/LICENSE.txt

2. three-mesh-bvh      version 0.7.6     MIT   (c) 2018 Garrett Johnson
   source:  https://cdn.jsdelivr.net/npm/three-mesh-bvh@0.7.6/   (npm package "three-mesh-bvh")
   file:    three-mesh-bvh/index.module.js   (= build/index.module.js)
   licence: three-mesh-bvh/LICENSE.txt

3. three-gpu-pathtracer version 0.0.23   MIT   (c) 2021 Garrett Johnson
   source:  https://cdn.jsdelivr.net/npm/three-gpu-pathtracer@0.0.23/   (npm package "three-gpu-pathtracer")
   file:    three-gpu-pathtracer/index.module.js   (= build/index.module.js)
   licence: three-gpu-pathtracer/LICENSE.txt
   Used only by the "Photo" button (loaded on demand).

Used by: /3d-viewer/app/ (import map in index.html points to these files). Newer versions of the pathtracer / three-mesh-bvh need a newer three.js.

ALTCHA widget (form "10 DXF for free"): see altcha/README.txt (MIT).