TANK / Discovery Shore

A coast built together.

Discovery Shore is TANK’s fishing world built on the MIT-licensed Tidewater foundation by DRG Software Solutions LLC. TANK created this archipelago, circular sea walk, observatory, chart house, survey chart, and four-light fieldwork progression. The WebGPU renderer, ocean, sky, wildlife, boat, fishing rod, and fishing simulation are adapted from Tidewater. TANK also supplies the release journal, earned tackle, the nine shoreline finds, collection rewards, home displays, and memory continuity, controls, and interface.

All 18 fish use original TANK paintings, generated with OpenAI imagegen and shaped through TANK’s modeled-fish pipeline. Their anatomy, textures, and materials replace the upstream fish assets. The Reach also reuses TANK’s fishing sound kit and adds an original three-note fieldwork cue; the recorded ocean soundscape and its source credits remain below.

Adapted from revision 4811ba48d795197de5621985f404e765c0b7c0ef. The source notices and asset-specific licenses are retained alongside this scene.

Tidewater license

MIT License

Copyright (c) 2026 DRG Software Solutions LLC

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Original asset and technique credits

# Credits

The code in this repository is released under the MIT license (see `LICENSE`). The third-party
assets below keep their own licences.

## Audio: `assets/audio/`

42 field recordings from [Freesound](https://freesound.org), all released under
[CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/). No attribution is required, but every file is
credited with its author and source link in [`assets/audio/CREDITS.md`](assets/audio/CREDITS.md).

Recordists: YevgVerh, straget, Alex_hears_things, chris_dagorne, bruno.auzet, felix.blume, hdfreema,
richardemoore, KaleidacousticsAudio, AugustSandberg, kyles, Pfannkuchn, 200221-WeanBekker, florianreichelt,
Nox_Sound, ryansitz, SilentStrikeZ, SecureSubset, tbsounddesigns, qubodup, blaukreuz, wormer2, roboroo,
squashy555, Soojay, coalcon, dubminister, nathankwright, SorenF109, LaScienceMusicale, KEVOY, mikewest,
tosha73, paulprit, Mrthenoronha, mwchristian95, MrFossy, BranndyBottle, JoelMcDaniel, khenshom, ramattahatta,
RatBird and Anthousai.

## Scanned beach debris: `assets/models/debris/`

Photogrammetry models from [Poly Haven](https://polyhaven.com), under
[CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/):

- Dead Quiver Trunk
- Dead Quiver Branch 01
- Dead Quiver Branch 02
- Lambis Shell

The meshes were decimated into levels of detail, and the textures are unchanged. Details are in
[`assets/models/debris/CREDITS.md`](assets/models/debris/CREDITS.md).

## Vendor stalls: `assets/models/props/`

Joe's fish stand and Marta's chandlery are built from [Poly Haven](https://polyhaven.com) textures and
models under [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/):

- Textures: Weathered Brown Planks, Weathered Planks, Worn Corrugated Iron, Weathered Peeling Timber
- Models: Wooden Crate 01 and 02, Wooden Bucket 01, Fish Knife, Wooden Cutting Board, Lifebuoy, Wooden
  Lantern 01, Fisherman's Hat, Wooden Table 03, Metal Jerrycan (green), Plastic Jerrycan, Life Jacket, Metal
  Toolbox, Wooden Display Shelves 01

The models were decimated and the textures downsized by `tools/props/`. The signs, the chalkboard and the
scale dial were lettered with [Permanent Marker](https://fonts.google.com/specimen/Permanent+Marker) (Apache
2.0), [Cabin Sketch](https://fonts.google.com/specimen/Cabin+Sketch) (SIL OFL 1.1) and
[Oswald](https://fonts.google.com/specimen/Oswald) (SIL OFL 1.1); the font files and their licences are in
`tools/props/fonts/`. Details are in [`assets/models/props/CREDITS.md`](assets/models/props/CREDITS.md).

## Humpback whale: `assets/models/whale/`

This is an original procedural model, generated by our own scripts. Its proportions follow
published humpback anatomy, and its side profile was traced from a NOAA Fisheries illustration, a
US government work in the public domain. The reference photographs used while modelling are not included.

## Characters: `assets/models/characters/`

The vendors (`joe.glb`, `marta.glb`) are avatars `Wood_Male_01` and `Female_Adult_04` and their
idle, talk, wave and shrug animations from the [Microsoft Rocketbox Avatar Library](https://github.com/microsoft/Microsoft-Rocketbox)
(© Microsoft Corporation, MIT license, included as `LICENSE-Rocketbox.md`), converted with
`tools/characters/` (textures resized, animations retargeted and baked). Paper: M. Gonzalez-Franco
et al., "The Rocketbox Library and the Utility of Freely Available Rigged Avatars", Frontiers in
Virtual Reality, 2020.

## Fonts

[Inter](https://rsms.me/inter/) and [JetBrains Mono](https://www.jetbrains.com/lp/mono/) are both under the
SIL Open Font License 1.1. They are loaded from Google Fonts at runtime and are not part of this repository.

## Libraries

The SMAA area and search lookup textures (`assets/textures/smaa/`) are from three.js (MIT), which ships
them from J. Jimenez et al.'s SMAA reference implementation (MIT).

[Vite](https://vite.dev) (MIT) is an npm dependency and is not vendored here.

## Techniques and references

These are published techniques. No code from the papers is included.

| Technique | Source |
|---|---|
| FFT ocean spectra | J. Tessendorf, *Simulating Ocean Water* |
| Atmosphere | S. Hillaire, *A Scalable and Production Ready Sky and Atmosphere Rendering Technique* (2020) |
| Volumetric cloud modelling | A. Schneider (Guerrilla Games), the *Nubis* talks |
| Motion blur | M. McGuire et al., *A Reconstruction Filter for Plausible Motion Blur* (2012); J. Jimenez, *Next Generation Post Processing in Call of Duty: Advanced Warfare* (2014) |
| Bloom | J. Jimenez (2014) |
| Sharpening (RCAS) | AMD FidelityFX Super Resolution 1 |
| SMAA / FXAA | J. Jimenez et al., *SMAA: Enhanced Subpixel Morphological Antialiasing* (2012); T. Lottes, *FXAA* (2009); ported from three.js' SMAANode / FXAANode (MIT) |
| Rasterized caustics | Evan Wallace's *WebGL Water* approach |
| Breaking waves | Guerrilla Games, *Horizon Forbidden West* water (SIGGRAPH 2022) |

The cloud noise, lighting and sampling scheme (`src/sky/Clouds.js`) is adapted from DRG Software Solutions'
own *Sky Pro WebGPU*. It is published here under this repository's MIT license by its copyright holder.

Field recording credits · Scanned debris · Props · Rocketbox license