# License information

OVITO Basic in binary form is published by the software vendor OVITO GmbH, Germany, under the terms of the MIT License. Program packages are built from source code available under the terms of the GNU General Public License (v3) and the MIT License. The source code is hosted in a public GitLab repository.

OVITO Pro is proprietary software of OVITO GmbH and licensed under the terms of the OVITO Pro End-User Licence Agreement. See this page for more information on the differences between the two versions of OVITO.

The `ovito` Python module, distributed as PyPI and Anaconda packages, is made available by OVITO GmbH under the MIT License.

## Third-party software

OVITO Pro and OVITO Basic are based on the following open-source software components. The table lists the licenses of the included components and, if they are used under LGPL, build steps for their source codes.

Component | License | Instructions
--- | --- | ---
Qt | LGPL v3 | Info
Qwt | license |
Boost | license |
Python | PSF license |
Geogram library by Bruno Levy, INRIA - ALICE | license |
Tachyon Parallel / Multiprocessor Ray Tracing System by John E. Stone | license |
muParser by Ingo Berg | license |
Libssh | LGPL v2.1 | Info
OpenSSL | Apache 2.0 |
OVITO legacy code | license |
ffmpeg | LGPL v2.1 | Info
netCDF | license |
HDF5 | license |
Voro++ by Chris Rycroft | license |
zlib | license |
Zstandard | license |
Polyhedral Template Matching library by Peter Mahler Larsen | license |
QCP rotation calculation method by Pu Liu and Douglas L. Theobald | license |
GSD (General Simulation Data) I/O routines | license |
pybind11 | license |
PySide6 | LGPL v3 | Info
Numpy | license |
Matplotlib | license |
KISS FFT | license |
OSPRay | Apache 2.0 |
Embree | Apache 2.0 |
Intel Open Image Denoise | Apache 2.0 |
Intel RenderKit common C++/CMake infrastructure | Apache 2.0 |
Intel Open VKL | Apache 2.0 |
oneAPI Threading Building Blocks | Apache 2.0 |
GEMMI (GEneral MacroMolecular I/O) | MPL v2 |
Parsing Expression Grammar Template Library (PEGTL) | license |
XTC/TRR/XDR file I/O routines | license |
LAMMPS | LGPL v3 |
Traits | license |
Sodium | license |
rapidyaml | license |
The Khronos Group ANARI SDK | Apache 2.0 |
NVIDIA VisRTX | license |
NVIDIA OptiX | NVIDIA Software Developer Kits, Samples and Tools License Agreement |
OpenGL Mathematics (GLM) | license |

## Software Bill of Materials (SBOM)

Since version 3.15, OVITO ships with a machine-readable Software Bill of Materials (SBOM) that lists all third-party components included in the software along with their versions and licenses. The SBOM is provided in SPDX JSON format (version 2.3), an international open standard for communicating software bill of materials information.

The SBOM file (`ovito-*.spdx.json`) is found in the following directory of your local OVITO Basic/Pro installation:

- Linux: `share/ovito/ovito-*.spdx.json`

- macOS: `Ovito.app/Contents/Resources/ovito-*.spdx.json`

- Windows: `C:\Program Files\OVITO\ovito-*.spdx.json`

Note: SBOM information is not included in Conda and PyPI packages.