ENERGY ISLAND v0.4 - COASTAL ROCK TEXTURE
Retrieved: 2026-10-02

Rock Boulder Dry - Poly Haven
Asset: https://polyhaven.com/a/rock_boulder_dry
Files API: https://api.polyhaven.com/files/rock_boulder_dry
Info API: https://api.polyhaven.com/info/rock_boulder_dry
Authors: Dimitrios Savva (Photography), Rico Cilliers (Processing)
Physical source tile: approximately 1.8 x 1.8 metres.

License: Creative Commons CC0 1.0 Universal.
Official license: https://polyhaven.com/license
CC0 deed: https://creativecommons.org/publicdomain/zero/1.0/
The official asset page explicitly labels this texture CC0. Poly Haven's
license allows commercial use and redistribution; attribution is optional.

Only the original 1024 x 1024 JPG Diffuse, OpenGL Normal and Roughness maps
were downloaded. Source pixels were not generated, resized, repacked or
edited. The local diffuse filename matches the project's Resources naming.

Assets/Resources/Textures/rock_boulder_dry_diffuse.jpg
859211 bytes; MD5 da794cd9be3db91e3160cf081109f322
https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/rock_boulder_dry/rock_boulder_dry_diff_1k.jpg

Assets/Resources/Textures/rock_boulder_dry_nor_gl.jpg
802497 bytes; MD5 6f1c575ceed560ae253f65518cf748e2
https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/rock_boulder_dry/rock_boulder_dry_nor_gl_1k.jpg

Assets/Resources/Textures/rock_boulder_dry_rough.jpg
668127 bytes; MD5 0c8b15df3e31c15256da5f8e1b0d0759
https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/rock_boulder_dry/rock_boulder_dry_rough_1k.jpg

Total new source texture bytes: 2329835 (2.22 MiB).
All three file sizes and MD5 checksums were checked against the official API.
All image dimensions were checked at 1024 x 1024.

Per-asset import settings are copied from the existing approved concrete
maps, with fresh GUIDs: max 1024, mipmaps, trilinear, anisotropy 2, compressed,
no CPU read access. Diffuse is sRGB; normal and roughness are linear. The
normal uses Unity NormalMap import without green-channel inversion.
The existing global/scoped AssetPostprocessor was not modified.

Use: coastal dry rock, wet rock and sloping shore only. Facility materials
retain their existing texture sets. Wet rocks darken the original texture
and reduce roughness in the existing URP-compatible EnergySurface shader.

All island, rock, vegetation and service-vessel meshes are original source
geometry authored for this project. No external mesh library was added.
