# Driveglot 3D Journey — asset provenance

## Concept car
Car Concept from the Khronos glTF Sample Assets collection.

Model and textures: © 2024 Darmstadt Graphics Group GmbH, Eric Chadwick.
License: Creative Commons Attribution 4.0 International.

- Source: https://github.com/KhronosGroup/glTF-Sample-Assets/tree/main/Models/CarConcept
- License: https://creativecommons.org/licenses/by/4.0/
- Original model: Unity Fan's public-domain CC0 concept car, as documented in the source README.
- Local file: assets/concept-car.glb, retained unmodified.
- Runtime changes: body paint colors, less reflective paint, darker interior and glass, blank license-plate material, hidden emblem meshes; scaled and positioned on the original website road.
- Attribution in the site footer. The source contains Khronos marks; these are not Driveglot marks and no affiliation or endorsement is claimed. License plate textures are removed at runtime and emblem meshes hidden.

The car is an externally authored licensed 3D asset, not a model created by Driveglot or a photograph of an actual vehicle. The road, landforms, signs, camera choreography, lighting and site layout were created for this website. This promotional scene is not footage of the app's driving game.

## Three.js
Three.js 0.160.1; MIT license. Local engine and official GLTFLoader, BufferGeometryUtils and RoomEnvironment modules under vendor/. See THREE-LICENSE.txt.
Source: https://github.com/mrdoob/three.js/tree/r160

## Typography
DM Sans and Manrope loaded through Google Fonts. No vehicle photographs or generated car cutouts are used in the new homepage.

## Product and study examples
State progress numbers are explicitly illustrative. The three-question quiz retains its California handbook source links and optional subtitle support. App Store availability and final price remain unannounced; no functioning purchase or download is claimed.
`n2026-10-08 correction: removed intersecting roadside landforms. Counter-rotated front-wheel steering pivots by 30 degrees around their parent-space Z axis to align the axles with the rear wheels, retaining wheel roll and child parts.
`nWheel rolling: tire, rim and brake-disc children rotate around their local axle from road arc distance divided by scaled wheel radius. Brake pads and steering pivots remain fixed. Scroll reversal reverses roll; stationary position does not rotate wheels.
`nDriving Scenarios card: uses a clone of the same loaded homepage car, straight front-wheel pivots, shared paint and glass materials, matching daylight and a small 3D road. The preview initializes on visibility; it is a promotional illustration rather than playable app footage.

Cabin adaptation: replaced the original staggered seating with two side-by-side front sport seats and a center console; moved the steering assembly and pedals to the left driver position. Original exterior and licensed source attribution retained.