Reference
Third-Party Licenses
Open-source libraries bundled in MoltenVR: ALVR, DXMT, OpenComposite, WhiskyWine, and BlackHole — with full license notices as required.MoltenVR is built on top of several open-source projects. Their copyright and permission notices are reproduced below as required by their respective licenses, and are also bundled inside the app at Contents/Resources/THIRD_PARTY_LICENSES.md.
Streaming core (server_core) and headset client. Licensed under the MIT License.
Translates Direct3D 11 graphics calls to Apple Metal, enabling Windows VR games to render on Apple Silicon GPUs inside the Wine bottle.
OpenCompositeTranslates OpenVR (SteamVR-native) API calls onto the MoltenVR OpenXR runtime, allowing SteamVR games such as Half-Life: Alyx to run without a SteamVR installation. Licensed under the GPLv3.
WhiskyWineThe Wine build for macOS used by MoltenVR's managed bottle system, sourced via the frankea Whisky fork.
BlackHoleA virtual audio loopback driver for macOS. MoltenVR routes game audio through BlackHole 2ch to capture and forward it into the headset stream.
ALVR — Full License Text
Copyright (c) 2018-2019 polygraphene
Copyright (c) 2020-2024 alvr-org
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.