Licenses
Crystal and its components
Crystal
Crystal is distributed through Boosty. The terms of use are on the download page and in the license file inside the archive.
Can I use it for commercial work?
Yes. Images and animations rendered with Crystal are yours. You may sell them, deliver them to clients and publish them with no royalties and no credit to Crystal. Crystal's third-party components (Cycles, the NVIDIA, Intel and other libraries, the iToo API) put no restrictions on what you render.
- Rights to the render are not rights to the scene: commercial work needs a commercial 3ds Max license (Autodesk's educational version does not allow it) and licenses for the models, textures and HDRIs you use.
- Crystal is in beta: check your frames before you deliver them.
Third-party components
The plugin includes open-source libraries and NVIDIA components. Copyrights and the full license texts are in THIRD-PARTY-NOTICES.txt, which also ships in the plugin archive.
| component | license |
|---|---|
| Cycles from Blender 5.2.0 (modified for Crystal), Mikktspace, CUEW, HIPEW | Apache 2.0 |
| Embree, OpenImageDenoise, Open PGL, oneTBB, DPC++, Unified Memory Framework (Intel) | Apache 2.0 |
| OpenImageIO, Pthreads4w | Apache 2.0 |
| OpenColorIO, OpenEXR, Imath, libjpeg-turbo, WebP, Zstandard, Pystring, Hosek-Wilkie sky model | BSD 3-Clause |
| AOM, OpenJPEG, OpenJPH | BSD 2-Clause |
| {fmt}, pugixml, Expat, Brotli, libdeflate, robin-map, yaml-cpp, multiple-scattering sky model | MIT |
| OpenSubdiv (Pixar) | Tomorrow Open Source Technology License 1.0 |
| zlib, minizip-ng | zlib License |
| libpng | libpng License 2.0 |
| LibTIFF | libtiff License |
| libheif — linked dynamically as part of hrOIIO.dll, which you may replace with your own build | GNU LGPL 3.0+ |
| NVIDIA OptiX, CUDA (nvrtc), DLSS | NVIDIA OptiX SDK, CUDA Toolkit EULA and NVIDIA RTX SDKs licenses |
| Forest Pack and RailClone C++ API (iToo Software) | ITOOSOFT license, below |
Third Party Notice: Forest Pack and RailClone C++ API
Forest Pack and RailClone support uses the API that iToo Software provides free of charge to render engine developers (github.com/itoosoft). As its license requires, iToo has been notified that Crystal is a commercial product. The license text:
Copyright (c) 2019 iToosoft S.L.
This API is provided as FREE by Itoosoft S.L. with sole the purporse of integrating RailClone and Forest Pack plugins with 3rd party render engines and third party applications.
It's required to notify ITOOSOFT prior to use of the SDK in the development of any commercial Application. Any Application integrating the API is subject to a license to ITOOSOFT for use and public display of such Application for advertising and marketing purposes. In case of any commercial Application the API shall be considered as third party software, subject to an ITOOSOFT license. A "Third Party Notice" shall be posted on vendor site and/or included in a ReadMe file or Documentation made available with the applicable service or tool.
THIS SOFTWARE AND THE ACCOMPANYING FILES ARE DISTRIBUTED "AS IS" AND WITHOUT WARRANTIES AS TO PERFORMANCE OF MERCHANTABILITY OR ANY OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED. Because of the various hardware and software environments into which this software may be put, NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE IS OFFERED OR IMPLIED.
3ds Max SDK
The plugin is built with Autodesk's 3ds Max SDK. The SDK and its headers are not distributed with the plugin or on this site.
Trademarks
Corona Renderer, 3ds Max, Forest Pack, RailClone, Chaos Scatter, NVIDIA, OptiX and DLSS are trademarks of their owners. Crystal is not affiliated with these companies.