Licences and attribution
The 3D muscle geometry used by this project is derived from open-licensed anatomy datasets. All derived meshes redistributed by this project are licensed under CC BY-SA 4.0, and modifications have been made — they are listed below.
Z-Anatomy
Z-Anatomy — the libre 3D atlas of anatomy. Copyright © Gauthier Kervyn (design, 3D, anatomy) and contributors.
- Project site: z-anatomy.com
- Source: github.com/Z-Anatomy/Models-of-human-anatomy
- Archive DOI: 10.5281/zenodo.4953712
- Licence: Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Additional Z-Anatomy contributors credited upstream: Marcin Zieliński (Blender add-on), Lluís Vinent (Unity development), and the translation contributors listed in the upstream readme.
BodyParts3D
Z-Anatomy's meshes are derived from BodyParts3D, the upstream anatomical dataset.
BodyParts3D, © The Database Center for Life Science licensed under CC Attribution-Share Alike 2.1 Japan.
- Original data: dbarchive.biosciencedbc.jp
- Original model author: Kousaku Okubo / DBCLS
- Licence: CC BY-SA 2.1 Japan
Terminology
Anatomical naming follows Terminologia Anatomica (TA2, 2019) as organised by the Z-Anatomy project.
Typefaces
Both faces are self-hosted, so this site distributes them, so the SIL Open Font License travels with them. Both are modified — instanced and subset — which the licence permits; neither is renamed and neither is sold.
- Source Serif 4 — the body face. Copyright © 2014 The Source Serif 4 Project Authors. Source, licence.
- Libre Franklin — headings, labels and the wordmark. Copyright © 2020 The Libre Franklin Project Authors. Source, licence.
- Both under the SIL Open Font License 1.1.
Modifications
The meshes distributed by this project are not the originals. They have been modified as follows:
- A subset of gym-relevant skeletal muscles was selected from the full anatomy set.
- Meshes were decimated (polygon-reduced) to a browser-suitable triangle budget.
- Object transforms were applied and meshes were re-centred and merged per muscle.
- Objects were renamed from Terminologia Anatomica Latin names to this project's own English slugs.
- Textures were removed; shading uses flat vertex colour / matcap material.
- Meshes were exported to glTF-Binary (
.glb) and compressed with Meshopt.
Licence of this project's outputs
Because the source is CC BY-SA, the derived meshes distributed by this project — including every .glb served from this site — are redistributed under CC BY-SA 4.0. Attribution as given above must be preserved by anyone redistributing them.
Exercise facts (which movements exist, what equipment they use, which muscles they name) derive from the open free-exercise-db dataset. No instruction text or image was imported from it: every instruction and every common-mistake note on this site is original writing.
Project source code is licensed separately.