* Update OpenVR from an unknown version to 1.1.3b There shouldn't be any breaking changes. * Add removed variables from old OpenVR version The strings are the names of variables in steamvr.vrsettings in C:\Program Files (x86)\Steam\steamapps\common\SteamVR\resources\settings\ The string allowReprojection leads to warning log spam on some occasions. For more information see this github issue https://github.com/OpenVR-Advanced-Settings/OpenVR-AdvancedSettings/issues/25.
OpenVR SDK
OpenVR is an API and runtime that allows access to VR hardware from multiple vendors without requiring that applications have specific knowledge of the hardware they are targeting. This repository is an SDK that contains the API and samples. The runtime is under SteamVR in Tools on Steam.
Documentation
Documentation for the API is available on the Github Wiki
More information on OpenVR and SteamVR can be found on http://steamvr.com