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d4r
Copyright 2026 countervolts
This product is licensed under the Apache License, Version 2.0 (see LICENSE), except for the files
listed below.
patches/zluda/*.patch
Changes to ZLUDA (https://github.com/vosen/ZLUDA). ZLUDA is dual-licensed under the Apache
License, Version 2.0 and the MIT license; these patches are offered under the same terms.
patches/vkd3d-proton/*.patch
Changes to vkd3d-proton (https://github.com/HansKristian-Work/vkd3d-proton), which is licensed
under the GNU Lesser General Public License, version 2.1. These patches are offered under the
same license.
Release zips (scripts/package_release.sh) also bundle binaries of ZLUDA (Apache-2.0 or MIT, with
LLVM under Apache-2.0 with LLVM exceptions), the patched vkd3d-proton (LGPL-2.1) and OptiScaler
(https://github.com/optiscaler/OptiScaler, GPL-3.0, unmodified). Each zip carries their license
texts in d4r/licenses and says where every file comes from in d4r/source/SOURCES.txt.
Release zips also contain NVIDIA's nvngx_dlss.dll and _nvngx.dll and DLSS kernels compiled from
NVIDIA's PTX. Those are NVIDIA's property, are not covered by this repository's license, and are
included by whoever publishes the zip.
This repository contains no NVIDIA software. The NVIDIA DLSS feature library (nvngx_dlss.dll) and
the NGX core (_nvngx.dll) are NVIDIA's; you supply your own copies, and their use is governed by
NVIDIA's license terms. At build time, kernels/tools/extract_dlss_ptx.py reads PTX from your copy
of nvngx_dlss.dll into kernels/extracted/, which is not part of the repository and must not be
redistributed.
NVIDIA and DLSS are trademarks of NVIDIA Corporation. AMD, Radeon and FSR are trademarks of
Advanced Micro Devices, Inc. This project is not affiliated with or endorsed by either company.