License

The Pathtracer (the Pathtracer, PT GEO, PT MAT and PT LIGHT components and the DLSS plugin DlssTOP.dll) is released under the MIT licence.

MIT License

Copyright (c) 2026 Josef Pelz

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.

NVIDIA DLSS and OptiX

The DLSS denoiser is powered by NVIDIA DLSS Ray Reconstruction. DlssTOP.dll contains NVIDIA's DLSS runtime, which is NVIDIA's software under NVIDIA's own licence and is not covered by the MIT licence above. The OptiX denoiser uses NVIDIA OptiX through the NVIDIA graphics driver.

NVIDIA, RTX, DLSS and OptiX are trademarks or registered trademarks of NVIDIA Corporation in the United States and other countries.

TouchDesigner is a product of Derivative Inc. The Pathtracer is not affiliated with or endorsed by Derivative.