Neurabi 3D anatomy — model credits

All three source models are by Kristen Browne and Heidi Schlehlein, published by HuBMAP / the Human Reference Atlas (HRA). Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0):
https://creativecommons.org/licenses/by/4.0/

Brain:
3D Reference Organ for Brain, Male v1.3 (2023).
https://doi.org/10.48539/HBM929.XKCL.339
https://cdn.humanatlas.io/hra-releases/v2.0/models/3d-vh-m-allen-brain.glb
Based on the Allen Human Reference Atlas — 3D, 2020. The HRA reference mirrors anatomical structures to represent a whole brain, scaled to the Visible Human reference body.

Large intestine:
3D Reference Organ for Large Intestine, Male v1.2 (2022).
https://doi.org/10.48539/HBM334.LVTH.937
https://cdn.humanatlas.io/hra-releases/v1.2/models/SBU_M_Intestine_Large.glb
Based on data provided by Arie Kaufman, Stony Brook University; custom modelling by HRA contributors.

Small intestine:
3D Reference Organ for Small Intestine, Male v1.1 (2022).
https://doi.org/10.48539/HBM468.FFTJ.536
https://cdn.humanatlas.io/hra-releases/v1.2/models/VH_M_Small_Intestine.glb
Based on the National Library of Medicine Visible Human Male.

HRA 3D Reference Object Library:
https://humanatlas.io/3d-reference-library

Refinement, 3 November 2026: the gut asset was re-prepared from the same two source models with a finer remesh, more surface relaxation, a larger triangle budget, a shortened rectum and a smoother ambient-shading bake. The brain asset is unchanged.

Adaptations for Neurabi, 31 October 2026:
Parts combined into separate brain and gut assets; geometry normalised, voxel-remeshed to join segmented surfaces, gently smoothed and simplified for web rendering; ambient shading baked into vertex colours; meshes compressed with Meshoptimizer; materials and colours changed for the website. Original source proportions within each asset are retained. The composition is illustrative and not to anatomical scale between organs. These visualisations are educational and are not Neurabi clinical results. The source authors do not endorse Neurabi.

Illustrations made for Neurabi:
The microorganisms, immune cells, molecules and gut interior in the website scenes are procedural illustrations. They are not derived from the HRA models and do not depict specific species.

Rendering and animation libraries:
Three.js 0.187.0 (MIT) https://threejs.org/
GSAP 3.15.0 (Standard No Charge GSAP License) https://gsap.com/standard-license/
The library licence notices are in /assets/neurabi/licenses/.