YUNMENG SHADERS — THIRD-PARTY NOTICES

These notices cover helpers credited in the supplied shader source. Source
references identify the published foundations; they do not certify the full
project's development provenance or grant rights in unrelated shader packs.

1. HASH WITHOUT SINE — David Hoskins
Source: https://www.shadertoy.com/view/4djSRW
Scope: hash12/hash13 helpers and their project adaptations.
Copyright (c) 2014 David Hoskins.
MIT License

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.

2. VALUE NOISE DERIVATIVES — Inigo Quilez
Source reference: https://iquilezles.org/articles/morenoise/
Scope: value-noise interpolation/analytical derivative helper credited to
Inigo Quilez in the supplied source (smoothNoiseGrad).
Copyright (c) Inigo Quilez.
MIT License, as identified in the supplied source and project credits.

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.

3. INTERLEAVED GRADIENT NOISE — Jorge Jimenez / Alan Wolfe
Jorge Jimenez, Next Generation Post Processing in Call of Duty:
Advanced Warfare (SIGGRAPH 2014).
https://www.iryoku.com/next-generation-post-processing-in-call-of-duty-advanced-warfare/
Alan Wolfe, Interleaved Gradient Noise: A Different Kind of Low Discrepancy
Sequence (2022), including the temporal scroll offset discussed there.
https://blog.demofox.org/2022/01/01/interleaved-gradient-noise-a-different-kind-of-low-discrepancy-sequence/
These are algorithm/reference credits, not a claim that those authors license
or endorse the whole YunMeng project. No separate blanket license is asserted
here for article text or other materials from these websites.

4. ACES FILMIC CURVE FIT — Krzysztof Narkowicz
Source: https://knarkowicz.wordpress.com/2016/01/06/aces-filmic-tone-mapping-curve/
The author's published curve-fit code is offered under CC0 or MIT; this pack
uses the CC0 option. This refers to the compact curve approximation, not to
the entire ACES project or its name/trademarks.
https://creativecommons.org/publicdomain/zero/1.0/

5. QUINTIC INTERPOLATION — Ken Perlin
Ken Perlin, Improving Noise (2002).
Reference credit for the quintic interpolation polynomial and its derivative;
no claim of authorship of that mathematical foundation is made by YunMeng.
