Avicely Post: art and asset credits

Every third-party asset in the game is listed here with where it came from and its licence. Nothing comes from

Studio Ghibli, Abeto or any other copyrighted game or film. Characters, buildings, the planet, the story and the

audio are original. They are made procedurally in code (© Avicely).

Shipped files are re-encoded (WebP, resized, meshopt-compressed). The build pipeline is in scripts/build-textures.py

and scripts/build-rock-glb.mjs. The original downloads are kept in assets-src/.

PBR textures: Poly Haven (CC0 1.0)

Licence: CC0 1.0 Universal (public domain), https://polyhaven.com/license. Each texture uses its diffuse, normal (GL)

and roughness maps at 1k.

Used for	Asset	Source page	Downloaded file (diffuse; normal and roughness are its siblings)
terrain: grass	Leafy Grass	https://polyhaven.com/a/leafy_grass	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/leafy_grass/leafy_grass_diff_1k.jpg
terrain: paths, river banks	Park Dirt	https://polyhaven.com/a/park_dirt	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/park_dirt/park_dirt_diff_1k.jpg
terrain: beaches, sea and river bed	Coast Sand 01	https://polyhaven.com/a/coast_sand_01	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/coast_sand_01/coast_sand_01_diff_1k.jpg
terrain: mountain rock	Mossy Rock	https://polyhaven.com/a/mossy_rock	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/mossy_rock/mossy_rock_diff_1k.jpg
terrain: paved squares	Grey Stone Path	https://polyhaven.com/a/grey_stone_path	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/grey_stone_path/grey_stone_path_diff_1k.jpg
buildings: plaster walls	Clay Plaster	https://polyhaven.com/a/clay_plaster	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/clay_plaster/clay_plaster_diff_1k.jpg
buildings: timber, decks, poles	Japanese Cedar Planks	https://polyhaven.com/a/japanese_cedar_planks	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/japanese_cedar_planks/japanese_cedar_planks_diff_1k.jpg
buildings: roofs (kawara-style tiles)	Grey Roof Tiles	https://polyhaven.com/a/grey_roof_tiles	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/grey_roof_tiles/grey_roof_tiles_diff_1k.jpg
stone bases, lanterns, steps	Japanese Stone Wall	https://polyhaven.com/a/japanese_stone_wall	https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/japanese_stone_wall/japanese_stone_wall_diff_1k.jpg

3D model: Poly Haven (CC0 1.0)

Used for	Asset	Source page	Downloaded file
boulders on hills, coast and river banks (instanced)	Namaqualand Boulder 02	https://polyhaven.com/a/namaqualand_boulder_02	https://dl.polyhaven.org/file/ph-assets/Models/gltf/1k/namaqualand_boulder_02/namaqualand_boulder_02_1k.gltf (+ .bin and 1k textures)

Processing: welded and decimated from about 98k to about 1.1k triangles with meshoptimizer. Textures were resized to

512 px WebP and the mesh was meshopt-compressed, all with gltf-transform.

Leaf sprite: ambientCG (CC0 1.0)

Used for	Asset	Source page	Downloaded file
leaf-cluster cards for every tree, bush, bamboo and sakura canopy	Leaf 001	https://ambientcg.com/view?id=Leaf001	https://ambientcg.com/get?file=Leaf001_1K-JPG.zip

Licence: CC0 1.0, https://docs.ambientcg.com/license/. The cluster texture is made by copying the leaf (colour +

opacity maps) about 170 times at random sizes and angles (scripts/build-textures.py).

Code-side assets from the three.js examples (MIT)

Used for	Asset	Source
water surface normal map (sea, river)	`waternormals.jpg`	https://raw.githubusercontent.com/mrdoob/three.js/r180/examples/textures/waternormals.jpg
daytime sky (Preetham model), blended with the game's own dusk/night palette	`Sky.js`	https://github.com/mrdoob/three.js/blob/r180/examples/jsm/objects/Sky.js (bundled from the `three` npm package)
post effects on High: GTAO, bloom, output pass; glTF loader; meshopt decoder	`GTAOPass.js`, `UnrealBloomPass.js`, `OutputPass.js`, `GLTFLoader.js`, `meshopt_decoder.module.js`	three r180 `examples/jsm` (meshopt decoder © Arseny Kapoulkine, MIT)

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