# Credits and licences Uncoil is built on other people's work. This file is the full notice; a short credit line also appears in the app itself, under the swing lab, which is where the anatomy is on screen. ## Anatomy > BodyParts3D, © The Database Center for Life Science licensed under CC Attribution 4.0 > International. - Licence: [Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/) - Database licence page: - Original data: - Source geometry: `isa_BP3D_4.0_obj_99.zip`, BodyParts3D 4.0 - Publication: Mitsuhashi N. et al. (2009), *BodyParts3D: 3D structure database for anatomical concepts*, Nucleic Acids Research. **Changes made.** This material has been modified. The BodyParts3D 4.0 meshes were first adapted in the Human Atlas project: units and axes converted from millimetres/Z-up to metres/Y-up, geometry simplified with meshoptimizer under a 0.2% per-structure relative error limit, normals quantised to signed 16-bit, and the meshes packed into binary chunks. Uncoil then adapted that work further: a subset of skeletal structures was selected (the twenty-four vertebrae, the intervertebral discs, the sacrum, the hip bones, the ribcage and the sternum), the meshes were simplified again and re-centred for real-time rendering on a phone, split and rigged for animation, and re-coloured. No other changes were made to the underlying anatomy. The adapted asset is `assets/anatomy/spine.bin`, produced by `tools/build-anatomy.mjs`. **No warranty.** The BodyParts3D material is provided by its licensor as-is and as-available, with no representations or warranties of any kind, and with liability excluded to the extent possible, under Sections 5 and 6 of the Creative Commons Attribution 4.0 International licence. **Scope.** BodyParts3D is an adult male reference anatomy based on TARO MRI data with anatomical refinements. It does not represent every human structure or variation. The figure in Uncoil is an illustration of how rotation is shared between the hips, the thoracic spine and the lumbar spine. It is not a scan of you, not a measurement of you, and not a diagnostic tool. **Availability.** The adapted geometry is served by the Uncoil web app over plain HTTPS with no technological protection measure of any kind, so any recipient can obtain the exact adapted asset unencumbered, whichever way they got the app. ## Software Uncoil's 3D anatomy pipeline is derived from Human Atlas by ashemag (), used under the MIT Licence. ``` MIT License Copyright (c) 2026 ashemag Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ``` three.js — Copyright © 2010–present three.js authors, MIT Licence. meshoptimizer — Copyright © 2016–present Arseny Kapoulkine, MIT Licence. Used upstream as a build-time tool.