mcpbytes-image-to-3d
Copyright (C) 2026 King Of The Hour, LLC

This program is free software: you can redistribute it and/or modify it under the terms of the
GNU Affero General Public License, version 3 only (LICENSE). It comes with no warranty.

This software is provided by MCPBytes.com. Tencent is not affiliated with, associated with, sponsoring
or endorsing it.

Tencent Hunyuan 3D 2.1
----------------------
Tencent Hunyuan 3D 2.1 is licensed under the Tencent Hunyuan 3D 2.1 Community License Agreement,
Copyright © 2025 Tencent. All Rights Reserved. The trademark rights of “Tencent Hunyuan” are owned by
Tencent or its affiliate.

The folder src/mcpbytes_image_to_3d/vendor/hunyuan3d/ holds code from Tencent's Hunyuan3D 2.1
(https://github.com/Tencent-Hunyuan/Hunyuan3D-2.1, commit 82920d643c0dc2f7bfd7255f45f62d386edfe60c).
It is licensed to you by Tencent under that agreement (vendor/hunyuan3d/LICENSE), not under the AGPL;
Tencent's own notices, including the third-party components in that code, are in
vendor/hunyuan3d/Notice.txt. Files we changed say so at the top; vendor/hunyuan3d/README.md lists every
change and every file left out.

Tencent's agreement binds your use of that code and of the Hunyuan3D 2.1 model weights, whatever
licence covers the rest of this program. In short (the agreement governs): it does not apply in the
European Union, the United Kingdom or South Korea and grants no rights there; use must follow its
Acceptable Use Policy (Exhibit A); outputs must not be used to improve any other AI model; and anyone
whose products or services had more than 1 million monthly active users in May 2025 needs a licence
from Tencent first.

Additional permission under GNU AGPL version 3 section 7: if you modify this program, or any covered
work, by linking or combining it with Tencent Hunyuan 3D 2.1 (or a modified version of it), containing
parts covered by the terms of the Tencent Hunyuan 3D 2.1 Community License Agreement, King Of The Hour,
LLC grants you additional permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for the parts of Tencent Hunyuan
3D 2.1 used as well as that of the covered work.

Generated models
----------------
The models, textures and previews this program generates are not covered by the AGPL, and Tencent
claims no rights in them. You are responsible for them and for the images you supply: use images you
have the right to use. Tencent's restrictions on outputs above still apply.

Model weights
-------------
This package contains no model weights. On first use it downloads these files, at pinned commits or
checksums, from their publishers; they are licensed to you by their publishers, not by us:

- Hunyuan3D 2.1 shape (hunyuan3d-dit-v2-1) and texture (hunyuan3d-paintpbr-v2-1) models by Tencent,
  Tencent Hunyuan 3D 2.1 Community License Agreement: https://huggingface.co/tencent/Hunyuan3D-2.1
- DINOv2 giant by Meta, Apache-2.0: https://huggingface.co/facebook/dinov2-giant
- Real-ESRGAN x4plus by Xintao Wang and others, BSD-3-Clause: https://github.com/xinntao/Real-ESRGAN
- U²-Net (u2net.onnx, as distributed by rembg) by Xuebin Qin and others, Apache-2.0:
  https://github.com/xuebinqin/U-2-Net, https://github.com/danielgatis/rembg

Runtime libraries
-----------------
Installed separately by your package manager under their own licences, including PyTorch and
torchvision, NumPy, SciPy, scikit-image, OmegaConf and pooch (BSD-3-Clause), Diffusers, Transformers,
Accelerate, safetensors, huggingface_hub, timm, OpenCV, DracoPy and Ninja (Apache-2.0), trimesh,
xatlas, fast-simplification, einops, rembg, pymatting, ONNX Runtime, PyYAML and the MCP Python SDK
(MIT), numba (BSD-2-Clause), tqdm (MPL-2.0 and MIT) and Pillow (MIT-CMU).
