# Forest asset license and attribution

The third-party models and textures in this directory are provided by
[Poly Haven](https://polyhaven.com) under **CC0 1.0 Universal (CC0-1.0)**.
The full legal text is included in [LICENSE-CC0-1.0.txt](LICENSE-CC0-1.0.txt).

Poly Haven permits copying, modification, commercial use, and redistribution
of these assets without requiring attribution. Keeping this notice and the
license text with the resources documents their origin and license.

- Provider's license statement: https://polyhaven.com/license
- Official legal text: https://creativecommons.org/publicdomain/zero/1.0/legalcode
- Powered by Poly Haven.

## Asset sources

- [pine_sapling_small](https://polyhaven.com/a/pine_sapling_small)
- [fir_sapling](https://polyhaven.com/a/fir_sapling)
- [tree_small_02](https://polyhaven.com/a/tree_small_02)
- [grass_bermuda_01](https://polyhaven.com/a/grass_bermuda_01)
- [grass_medium_01](https://polyhaven.com/a/grass_medium_01)
- [grass_medium_02](https://polyhaven.com/a/grass_medium_02)
- [fern_02](https://polyhaven.com/a/fern_02)
- [dandelion_01](https://polyhaven.com/a/dandelion_01)
- [nettle_plant](https://polyhaven.com/a/nettle_plant)
- [periwinkle_plant](https://polyhaven.com/a/periwinkle_plant)
- [mud_forest](https://polyhaven.com/a/mud_forest)

## Local preparation and provenance

The models use 1K textures. Preparation selects one plant from each original
lineup, removes unused geometry and display offsets, rotates it to Z-up,
aligns its root to zero, and adds Rayrai foliage material metadata. Pine and
fir twig materials use opaque rendering for their RGB color textures.

[sources.json](sources.json) records original download URLs and SHA-256 hashes;
[manifest.json](manifest.json) records the prepared resource hashes.

This notice covers the third-party asset resources in this directory. It does
not change the licenses of Raisim, Rayrai, or the surrounding example code.

## Mossy rocks

[Rock Moss Set 01](https://polyhaven.com/a/rock_moss_set_01) by Kless Gyzen,
Poly Haven, CC0-1.0 (see the license in this folder). Six shapes share the
original 1K textures and geometry buffers; display offsets are removed,
models are rotated to Z-up, and each is centered and scaled to a horizontal
bounding radius of one metre with its lowest point at zero.