message: Clarify Windows build instructions
diff: @@ -36,6 +36,12 @@ ninja matc resgen cmgen
  The build should succeed and a `ImportExecutables-Release.cmake` file should automatically be
  created at Filament's root directory.
  +If you are going to build Filament samples you should install desktop host tools:
  +
  +```
  +ninja install
  +```
  +
  ## Build
  1. Create the build directories.
  @@ -101,18 +107,18 @@ gradlew -Pfilament_dist_dir=..\out\android-release\filament assembleRelease
  copy filament-android\build\outputs\aar\filament-android-release.aar ..\..\out\
  ```
  -If you're only interested in building for a single ABI, you'll need to add an `abiFilters` override
  -inside the `build.gradle` file underneath `defaultConfig`:
  +If you're only interested in building for a single ABI, you'll need to pass a `filament_abis` parameter:
  +
  +```
  +gradlew -Pfilament_dist_dir=..\out\android-release\filament assembleRelease -Pfilament_abis=x86
  +```
  +
  +If you're only interested in building SDK, you may skip samples build by passing a `filament_skip_samples` flag:
  ```
  -ndk {
  - abiFilters 'arm64-v8a'
  -}
  +gradlew -Pfilament_dist_dir=..\out\android-release\filament assembleRelease -Pfilament_skip_samples
  ```
  -See
  -[NdkOptions](https://google.github.io/android-gradle-dsl/current/com.android.build.gradle.internal.dsl.NdkOptions.html#com.android.build.gradle.internal.dsl.NdkOptions:abiFilters)
  -for more information.
  `filament-android-release.aar` should now be present at `<filament>\out\filament-android-release.aar`.
  