message: README.md: add build steps for Visual Studio 2019 / MSVC
diff: @@ -341,6 +341,33 @@ See [ios/samples/README.md](./ios/samples/README.md) for more information.
  ### Windows
  +#### Building on Windows with the Visual Studio 2019 compiler
  +
  +Install the following components:
  +
  +- [Visual Studio 2019](https://www.visualstudio.com/downloads)
  +- [Python 3.7](https://www.python.org/ftp/python/3.7.0/python-3.7.0.exe)
  +- [CMake 3.14 or later](https://github.com/Kitware/CMake/releases/download/v3.14.7/cmake-3.14.7-win64-x64.msi)
  +
  +Open the `x64 Native Tools Command Prompt for VS 2019`.
  +
  +Create a working directory, and run cmake in it:
  +
  +```
  +> mkdir out
  +> cd out
  +> cmake ..
  +```
  +
  +Then, you should be able to load the generated solution file `TNT.sln` in Visual Studio and build the `material_sandbox` project.
  +
  +Run it from the `out` directory with:
  +```
  +> samples\Debug\material_sandbox.exe ..\assets\models\monkey\monkey.obj
  +```
  +
  +#### Building on Windows with the Clang compiler
  +
  The following instructions have been tested on a machine running Windows 10. They should take you
  from a machine with only the operating system to a machine able to build and run Filament.
  