update openVR to 1.3.22

third-party/openvr/README.md

@@ -1,13 +1,70 @@
-OpenVR SDK
+# OpenVR Samples: CMake build guide.
+
+## Support
+
+|      Configuration      |    32     |    64     |
+| ----------------------- |:---------:|----------:|
+| GNU/Linux   (gcc 4.8+)  |   OK      |    OK     |
+| Windows     (msvc 12)   |   OK      |    OK     |
+| OSX         (clang)     |   ~       |    ~      |
+
+
+## Dependencies
+
+* Qt 5.x
+* GLEW 1.11+
+* SDL2
+* OpenVR
+
+The only general external dependency is Qt5.<br/>
+On GNU/Linux, you will need GLEW 1.11 (available on most package manager).<br/>
+On Windows x64, you will need the SDL2 runtime library.
+
+## Build
+
+**Important:**<br/>
+*you might need to specify Qt5 cmake module path manually when generating the cache for the first time using the __CMAKE_PREFIX_PATH__ macro (see examples below).*
+
+We will use the command-line on Unix and [Git Bash](https://git-for-windows.github.io/) on Windows.
+
+First, move from the repository root to the samples directory to create a build directory:
+```
+cd samples
+mkdir build; cd build
+```
+
+Then, depending on your system:
+
+### Unix
+
+Generate the CMake cache using Makefile:
+```
+cmake .. -G Makefile -DCMAKE_PREFIX_PATH=/opt/Qt/5.6/gcc_64/lib/cmake -DCMAKE_BUILD_TYPE=Release
+```
+
+To build type:
+```
+make -j4
+```
+
+
+### Windows
+
+Generate the CMake cache using MSVC 12 for x64:
+```
+cmake .. -G "Visual Studio 12 2013 Win64" -DCMAKE_PREFIX_PATH=C:/Qt/5.6/msvc2013_64/lib/cmake
+```
+
+Alternatively, you can force the compilation on x86 architectures by using the **PLATFORM** property (*be sure to use the right generator and Qt binaries*):
+```
+cmake .. -G "Visual Studio 12 2013" -DCMAKE_PREFIX_PATH=C:/Qt/5.6/msvc2013/lib/cmake -DPLATFORM=32
+```
+
+To build, simply type:
+```
+cmake --build . --target all --config Release
+```
+
+*Note : using CMake, the build configuration type (ie. Debug, Release) is set at Build Time with MSVC and at Cache Generation Time with Makefile.*
+
 ---
-
-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](https://github.com/ValveSoftware/openvr/wiki/API-Documentation)
-
-More information on OpenVR and SteamVR can be found on http://steamvr.com