# Workshop asset attribution

## Car model

`car-concept.glb` is adapted from **Car Concept**, model and textures by **Eric Chadwick, Darmstadt Graphics Group GmbH, 2024**, distributed under **Creative Commons Attribution 4.0 International**.

- Source: https://github.com/KhronosGroup/glTF-Sample-Assets/tree/main/Models/CarConcept
- Original binary: https://raw.githubusercontent.com/KhronosGroup/glTF-Sample-Assets/main/Models/CarConcept/glTF-Binary/CarConcept.glb
- License: https://creativecommons.org/licenses/by/4.0/
- Legal code: https://creativecommons.org/licenses/by/4.0/legalcode
- Source asset began with Unity Fan's public-domain concept car: https://sketchfab.com/3d-models/free-concept-car-004-public-domain-cc0-4cba124633eb494eadc3bb0c4660ad7e

Changes: removed the Khronos/3D Commerce logo texture from the plate material and brake emissive material, replaced them with neutral materials, and added runtime lighting, finish treatments, camera choreography, material wear, and assembly animation. The inspected front rotor and caliper are original illustrative mechanical models authored to fit the source visual dimensions. This is a fictional concept car. It does not represent a manufacturer, endorsement, service manual, or verified part fitment.

The upstream file contains Khronos and 3D Commerce logo artwork in an unused embedded texture. Those marks are separately reserved by Khronos; this project does not display or claim those marks. Upstream mark notice: https://github.com/KhronosGroup/glTF-Sample-Assets/blob/main/LICENSES/LicenseRef-LegalMark-Khronos.txt

Attribution must remain accessible to users and accompany redistribution of this asset or adapted versions.

## Studio lighting environment

`studio-small-09-1k.hdr` is **Studio Small 09**, a photographic HDR environment by **Sergej Majboroda**, distributed by **Poly Haven** under **Creative Commons CC0 1.0 Universal**. CC0 permits commercial use, modification and redistribution without attribution; this credit records its provenance.

- Source: https://polyhaven.com/a/studio_small_09
- Original 1K HDR: https://dl.polyhaven.org/file/ph-assets/HDRIs/hdr/1k/studio_small_09_1k.hdr
- Asset license: https://polyhaven.com/license
- CC0 dedication: https://creativecommons.org/publicdomain/zero/1.0/
- File size: 1,615,248 bytes
- SHA-256: `e7cfda5f4e98e623db12b8bfd0184e048488e4855d9c83e2751fb44a32e80c45`

The downloaded HDR pixels are unchanged; the file was renamed for this project. Runtime prefiltering, rotation and exposure adjustments use the photograph as lighting and reflections for the car scene. The environment was photographed by its credited author, not created for RECOMMISSION.