# Attribution

**Crossroads** is original procedural scenery authored by Innate Inc and
distributed under Apache-2.0, like its generator (`sim/tools/build_intersection.py`).
Its buildings, roads, sidewalks, curb cuts, signals, vegetation and furniture
are generated from geometric primitives. No purchased town mesh or texture is
an input. The traffic cars are also original, code-defined Innate geometry.

The apartment environment is derived from ["Appartement"](https://sketchfab.com/3d-models/appartement-6a7a5fe208344b2e8123a88923dbd5b3) by [SrMonteiro](https://sketchfab.com/crispimrafael), licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Changes were made: split per room, convex-decomposed for collision, re-exported for rendering (GLB/MuJoCo meshes), and rasterized into a navigation map.

The backrooms environment is derived from ["Backrooms VR"](https://sketchfab.com/3d-models/backrooms-vr-d9b98eca8d064d0eafcd7f5484bb61ed) by [carlcapu9](https://sketchfab.com/carlcapu9), licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Changes were made: the scene was shifted so its floor sits at the origin, convex-decomposed for collision, re-exported per part for MuJoCo rendering (OBJ + PNG), and rasterized into a navigation map; the source GLB is redistributed for viewer rendering.

The scenario human is derived from ["Casual Man In Navy T-shirt And Jeans"](https://sketchfab.com/3d-models/casual-man-in-navy-t-shirt-and-jeans-bddc55b5a9d4406b982ec6de9b99531b) by [restore50](https://sketchfab.com/restore50), licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Changes were made for simulator use: converted to a normalized MuJoCo OBJ (Y-up centimeters, feet at origin) with the base-color texture extracted; the source GLB is also redistributed for viewer rendering.

The dog prop is derived from "Dog" by [all of life](https://sketchfab.com/Xfdfgd), licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Changes were made for simulator use: converted to a MuJoCo OBJ with the base-color texture extracted, convex-decomposed for collision so the legs and the gap under the belly stay live, and re-exported as GLB for viewer rendering.

The household residents are derived from ["Executive in a Gray Suit"](https://sketchfab.com/3d-models/executive-in-a-gray-suit-fcf37c2c2d764e74b6750ad60f4670f9), ["Inked Warrior"](https://sketchfab.com/3d-models/inked-warrior-f20e27c6d3544ab8aa599f2def865ce5), and ["Casual Confidence Girl"](https://sketchfab.com/3d-models/casual-confidence-girl-9f7d1343f3ae4da1b3cf7cb1795379e1) by [restore50](https://sketchfab.com/restore50), licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Changes were made for simulator use: meshes were simplified, normalized to metres with Z up and feet at the origin, reduced to a single 1024 px base-color texture, and optimized separately as OBJ files for MuJoCo and GLB files for the browser viewer.