All changes

.github/ISSUE_TEMPLATE/bug_report.md

@@ -4,8 +4,6 @@ about: Create a report to help us improve
 
 ---
 
-⚠️ **Issues not using this template will be systematically closed.**
-
 **Describe the bug**
 A clear and concise description of what the bug is.
 
@@ -20,8 +18,8 @@ A clear and concise description of what you expected to happen.
 If applicable, add screenshots to help explain your problem.
 
 **Logs**
-If applicable, copy **full** logs from your console here. Please *do not*
-use screenshots of logs, copy them as text, use gist or attach an *uncompressed* file.
+If applicable, copy logs from your console here. Please *do not*
+use screenshots of logs, copy them as text.
 
 **Desktop (please complete the following information):**
  - OS: [e.g. iOS]

.github/workflows/android-continuous.yml

@@ -13,11 +13,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v3.3.0
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '17'
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           cd build/android && printf "y" | ./build.sh continuous

.github/workflows/ios-continuous.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           cd build/ios && printf "y" | ./build.sh continuous

.github/workflows/linux-continuous.yml

@@ -10,10 +10,10 @@ on:
 jobs:
   build-linux:
     name: build-linux
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-18.04
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           cd build/linux && printf "y" | ./build.sh continuous

.github/workflows/mac-continuous.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           cd build/mac && printf "y" | ./build.sh continuous

.github/workflows/presubmit.yml

@@ -15,10 +15,10 @@ jobs:
 
     strategy:
       matrix:
-        os: [macos-latest, ubuntu-22.04]
+        os: [macos-latest, ubuntu-18.04]
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           WORKFLOW_OS=`echo \`uname\` | sed "s/Darwin/mac/" | tr [:upper:] [:lower:]`
@@ -32,7 +32,7 @@ jobs:
     runs-on: windows-2019
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           build\windows\build-github.bat presubmit
@@ -43,11 +43,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v3.3.0
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '17'
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           cd build/android && printf "y" | ./build.sh presubmit
@@ -57,7 +53,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           cd build/ios && printf "y" | ./build.sh presubmit
@@ -70,7 +66,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           cd build/web && printf "y" | ./build.sh presubmit

.github/workflows/release.yml

@@ -31,7 +31,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [macos-latest, ubuntu-22.04]
+        os: [macos-latest, ubuntu-18.04]
 
     steps:
       - name: Decide Git ref
@@ -41,27 +41,22 @@ jobs:
           TAG=${REF##*/}
           echo "ref=${REF}" >> $GITHUB_OUTPUT
           echo "tag=${TAG}" >> $GITHUB_OUTPUT
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
         with:
           ref: ${{ steps.git_ref.outputs.ref }}
       - name: Run build script
-        env:
-          TAG: ${{ steps.git_ref.outputs.tag }}
         run: |
           WORKFLOW_OS=`echo \`uname\` | sed "s/Darwin/mac/" | tr [:upper:] [:lower:]`
           cd build/$WORKFLOW_OS && printf "y" | ./build.sh release
-          cd ../..
+      - name: Upload release assets
+        run: |
+          xargs -L 1 sudo pip3 install < build/common/requirements.txt
           if [ -f out/filament-release-darwin.tgz ]; then mv out/filament-release-darwin.tgz out/filament-${TAG}-mac.tgz; fi;
           if [ -f out/filament-release-linux.tgz ]; then mv out/filament-release-linux.tgz out/filament-${TAG}-linux.tgz; fi;
-      - uses: actions/github-script@v6
+          python3 build/common/upload-assets.py ${TAG} out/*.tgz
         env:
           TAG: ${{ steps.git_ref.outputs.tag }}
-        with:
-          script: |
-            const upload = require('./build/common/upload-release-assets');
-            const { TAG } = process.env;
-            const globber = await glob.create('out/*.tgz');
-            await upload({ github, context }, await globber.glob(), TAG);
+          GITHUB_API_KEY: ${{ secrets.GITHUB_API_KEY }}
 
   build-web:
     name: build-web
@@ -76,25 +71,20 @@ jobs:
           TAG=${REF##*/}
           echo "ref=${REF}" >> $GITHUB_OUTPUT
           echo "tag=${TAG}" >> $GITHUB_OUTPUT
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
         with:
           ref: ${{ steps.git_ref.outputs.ref }}
       - name: Run build script
-        env:
-          TAG: ${{ steps.git_ref.outputs.tag }}
         run: |
           cd build/web && printf "y" | ./build.sh release
-          cd ../..
+      - name: Upload release assets
+        run: |
+          xargs -L 1 sudo pip3 install < build/common/requirements.txt
           mv out/filament-release-web.tgz out/filament-${TAG}-web.tgz
-      - uses: actions/github-script@v6
+          python3 build/common/upload-assets.py ${TAG} out/*.tgz
         env:
           TAG: ${{ steps.git_ref.outputs.tag }}
-        with:
-          script: |
-            const upload = require('./build/common/upload-release-assets');
-            const { TAG } = process.env;
-            const globber = await glob.create('out/*.tgz');
-            await upload({ github, context }, await globber.glob(), TAG);
+          GITHUB_API_KEY: ${{ secrets.GITHUB_API_KEY }}
 
   build-android:
     name: build-android
@@ -109,24 +99,12 @@ jobs:
           TAG=${REF##*/}
           echo "ref=${REF}" >> $GITHUB_OUTPUT
           echo "tag=${TAG}" >> $GITHUB_OUTPUT
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
         with:
           ref: ${{ steps.git_ref.outputs.ref }}
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: '17'
       - name: Run build script
-        env:
-          TAG: ${{ steps.git_ref.outputs.tag }}
         run: |
           cd build/android && printf "y" | ./build.sh release
-          cd ../..
-          mv out/filament-android-release.aar out/filament-${TAG}-android.aar
-          mv out/filamat-android-release.aar out/filamat-${TAG}-android.aar
-          mv out/filamat-android-lite-release.aar out/filamat-${TAG}-lite-android.aar
-          mv out/gltfio-android-release.aar out/gltfio-${TAG}-android.aar
-          mv out/filament-utils-android-release.aar out/filament-utils-${TAG}-android.aar
       - name: Sign sample-gltf-viewer
         run: |
           echo "${APK_KEYSTORE_BASE64}" > filament.jks.base64
@@ -141,15 +119,18 @@ jobs:
           TAG: ${{ steps.git_ref.outputs.tag }}
           APK_KEYSTORE_BASE64: ${{ secrets.APK_KEYSTORE_BASE64 }}
           APK_KEYSTORE_PASS: ${{ secrets.APK_KEYSTORE_PASS }}
-      - uses: actions/github-script@v6
+      - name: Upload release assets
+        run: |
+          xargs -L 1 sudo pip3 install < build/common/requirements.txt
+          mv out/filament-android-release.aar out/filament-${TAG}-android.aar
+          mv out/filamat-android-release.aar out/filamat-${TAG}-android.aar
+          mv out/filamat-android-lite-release.aar out/filamat-${TAG}-lite-android.aar
+          mv out/gltfio-android-release.aar out/gltfio-${TAG}-android.aar
+          mv out/filament-utils-android-release.aar out/filament-utils-${TAG}-android.aar
+          python3 build/common/upload-assets.py ${TAG} out/*.aar out/*.apk
         env:
           TAG: ${{ steps.git_ref.outputs.tag }}
-        with:
-          script: |
-            const upload = require('./build/common/upload-release-assets');
-            const { TAG } = process.env;
-            const globber = await glob.create(['out/*.aar', 'out/*.apk'].join('\n'));
-            await upload({ github, context }, await globber.glob(), TAG);
+          GITHUB_API_KEY: ${{ secrets.GITHUB_API_KEY }}
 
   build-ios:
     name: build-ios
@@ -164,25 +145,20 @@ jobs:
           TAG=${REF##*/}
           echo "ref=${REF}" >> $GITHUB_OUTPUT
           echo "tag=${TAG}" >> $GITHUB_OUTPUT
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
         with:
           ref: ${{ steps.git_ref.outputs.ref }}
       - name: Run build script
-        env:
-          TAG: ${{ steps.git_ref.outputs.tag }}
         run: |
           cd build/ios && printf "y" | ./build.sh release
-          cd ../..
+      - name: Upload release assets
+        run: |
+          xargs -L 1 sudo pip3 install < build/common/requirements.txt
           mv out/filament-release-ios.tgz out/filament-${TAG}-ios.tgz
-      - uses: actions/github-script@v6
+          python3 build/common/upload-assets.py ${TAG} out/*.tgz
         env:
           TAG: ${{ steps.git_ref.outputs.tag }}
-        with:
-          script: |
-            const upload = require('./build/common/upload-release-assets');
-            const { TAG } = process.env;
-            const globber = await glob.create('out/*.tgz');
-            await upload({ github, context }, await globber.glob(), TAG);
+          GITHUB_API_KEY: ${{ secrets.GITHUB_API_KEY }}
 
   build-windows:
     name: build-windows
@@ -198,22 +174,19 @@ jobs:
           echo "ref=${REF}" >> $GITHUB_OUTPUT
           echo "tag=${TAG}" >> $GITHUB_OUTPUT
         shell: bash
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
         with:
           ref: ${{ steps.git_ref.outputs.ref }}
       - name: Run build script
-        env:
-          TAG: ${{ steps.git_ref.outputs.tag }}
         run: |
           build\windows\build-github.bat release
-          move out\filament-windows.tgz out\filament-$Env:TAG-windows.tgz
         shell: cmd
-      - uses: actions/github-script@v6
+      - name: Upload release assets
+        run: |
+          pip3 install PyGithub
+          mv out/filament-windows.tgz out/filament-${TAG}-windows.tgz
+          python build/common/upload-assets.py ${TAG} out/*.tgz
+        shell: bash
         env:
           TAG: ${{ steps.git_ref.outputs.tag }}
-        with:
-          script: |
-            const upload = require('./build/common/upload-release-assets');
-            const { TAG } = process.env;
-            const globber = await glob.create('out/*.tgz');
-            await upload({ github, context }, await globber.glob(), TAG);
+          GITHUB_API_KEY: ${{ secrets.GITHUB_API_KEY }}

.github/workflows/verify-release-notes.yml

@@ -24,4 +24,3 @@ jobs:
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           pull-request-number: ${{ github.event.pull_request.number }}
-          release-notes-file: 'NEW_RELEASE_NOTES.md'

.github/workflows/web-continuous.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           cd build/web && printf "y" | ./build.sh continuous

.github/workflows/windows-continuous.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: windows-2019
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v2.0.0
       - name: Run build script
         run: |
           build\windows\build-github.bat continuous

BUILDING.md

@@ -5,7 +5,7 @@
 To build Filament, you must first install the following tools:
 
 - CMake 3.19 (or more recent)
-- clang 14.0 (or more recent)
+- clang 7.0 (or more recent)
 - [ninja 1.10](https://github.com/ninja-build/ninja/wiki/Pre-built-Ninja-packages) (or more recent)
 
 Additional dependencies may be required for your operating system. Please refer to the appropriate
@@ -13,10 +13,9 @@ section below.
 
 To build Filament for Android you must also install the following:
 
-- Android Studio Flamingo or more recent
+- Android Studio Arctic Fox or more recent
 - Android SDK
 - Android NDK 25.1 or higher
-- Java 17
 
 ### Environment variables
 
@@ -40,20 +39,20 @@ inside the Filament source tree.
 
 To trigger an incremental debug build:
 
-```shell
-./build.sh debug
+```
+$ ./build.sh debug
 ```
 
 To trigger an incremental release build:
 
-```shell
-./build.sh release
+```
+$ ./build.sh release
 ```
 
 To trigger both incremental debug and release builds:
 
-```shell
-./build.sh debug release
+```
+$ ./build.sh debug release
 ```
 
 To install the libraries and executables in `out/debug/` and `out/release/`, add the `-i` flag.
@@ -76,9 +75,9 @@ The following CMake options are boolean options specific to Filament:
 
 To turn an option on or off:
 
-```shell
-cd <cmake-build-directory>
-cmake . -DOPTION=ON       # Replace OPTION with the option name, set to ON / OFF
+```
+$ cd <cmake-build-directory>
+$ cmake . -DOPTION=ON       # Relace OPTION with the option name, set to ON / OFF
 ```
 
 Options can also be set with the CMake GUI.
@@ -87,14 +86,12 @@ Options can also be set with the CMake GUI.
 
 Make sure you've installed the following dependencies:
 
-- `clang-14` or higher
+- `clang-7` or higher
 - `libglu1-mesa-dev`
-- `libc++-14-dev` (`libcxx-devel` and `libcxx-static` on Fedora) or higher
-- `libc++abi-14-dev` (`libcxxabi-static` on Fedora) or higher
+- `libc++-7-dev` (`libcxx-devel` and `libcxx-static` on Fedora) or higher
+- `libc++abi-7-dev` (`libcxxabi-static` on Fedora) or higher
 - `ninja-build`
 - `libxi-dev`
-- `libxcomposite-dev` (`libXcomposite-devel` on Fedora)
-- `libxxf86vm-dev` (`libXxf86vm-devel` on Fedora)
 
 After dependencies have been installed, we highly recommend using the [easy build](#easy-build)
 script.
@@ -102,38 +99,38 @@ script.
 If you'd like to run `cmake` directly rather than using the build script, it can be invoked as
 follows, with some caveats that are explained further down.
 
-```shell
-mkdir out/cmake-release
-cd out/cmake-release
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../release/filament ../..
+```
+$ mkdir out/cmake-release
+$ cd out/cmake-release
+$ cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../release/filament ../..
 ```
 
 Your Linux distribution might default to `gcc` instead of `clang`, if that's the case invoke
 `cmake` with the following command:
 
-```shell
-mkdir out/cmake-release
-cd out/cmake-release
-# Or use a specific version of clang, for instance /usr/bin/clang-14
-CC=/usr/bin/clang CXX=/usr/bin/clang++ CXXFLAGS=-stdlib=libc++ \
-  cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../release/filament ../..
+```
+$ mkdir out/cmake-release
+$ cd out/cmake-release
+# Or use a specific version of clang, for instance /usr/bin/clang-7
+$ CC=/usr/bin/clang CXX=/usr/bin/clang++ CXXFLAGS=-stdlib=libc++ \
+    cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../release/filament ../..
 ```
 
 You can also export the `CC` and `CXX` environment variables to always point to `clang`. Another
 solution is to use `update-alternatives` to both change the default compiler, and point to a
 specific version of clang:
 
-```shell
-update-alternatives --install /usr/bin/clang clang /usr/bin/clang-14 100
-update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-14 100
-update-alternatives --install /usr/bin/cc cc /usr/bin/clang 100
-update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++ 100
+```
+$ update-alternatives --install /usr/bin/clang clang /usr/bin/clang-7 100
+$ update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-7 100
+$ update-alternatives --install /usr/bin/cc cc /usr/bin/clang 100
+$ update-alternatives --install /usr/bin/c++ c++ /usr/bin/clang++ 100
 ```
 
 Finally, invoke `ninja`:
 
-```shell
-ninja
+```
+$ ninja
 ```
 
 This will build Filament, its tests and samples, and various host tools.
@@ -143,8 +140,8 @@ This will build Filament, its tests and samples, and various host tools.
 To compile Filament you must have the most recent version of Xcode installed and you need to
 make sure the command line tools are setup by running:
 
-```shell
-xcode-select --install
+```
+$ xcode-select --install
 ```
 
 If you wish to run the Vulkan backend instead of the default Metal backend, you must install
@@ -152,11 +149,11 @@ the LunarG SDK, enable "System Global Components", and reboot your machine.
 
 Then run `cmake` and `ninja` to trigger a build:
 
-```shell
-mkdir out/cmake-release
-cd out/cmake-release
-cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../release/filament ../..
-ninja
+```
+$ mkdir out/cmake-release
+$ cd out/cmake-release
+$ cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../release/filament ../..
+$ ninja
 ```
 
 ### iOS
@@ -164,8 +161,8 @@ ninja
 The easiest way to build Filament for iOS is to use `build.sh` and the
 `-p ios` flag. For instance to build the debug target:
 
-```shell
-./build.sh -p ios debug
+```
+$ ./build.sh -p ios debug
 ```
 
 See [ios/samples/README.md](./ios/samples/README.md) for more information.
@@ -181,7 +178,7 @@ Install the following components:
 - [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)
 
-The latest Windows SDK can also be installed by opening Visual Studio and selecting _Get Tools and
+The latest Windows SDK can also by installed by opening Visual Studio and selecting _Get Tools and
 Features..._ under the _Tools_ menu.
 
 By default, Windows treats the file system as case insensitive. Please do not enable case
@@ -191,10 +188,10 @@ using `fsutil.exe file queryCaseSensitiveInfo`.
 Next, open `x64 Native Tools Command Prompt for VS 2019`, create a working directory, and run
 CMake in it:
 
-```bat
-mkdir out
-cd out
-cmake ..
+```
+> mkdir out
+> cd out
+> cmake ..
 ```
 
 Open the generated solution file `TNT.sln` in Visual Studio.
@@ -204,15 +201,15 @@ target in the _Solution Explorer_ and choose _Build_ to build a specific target.
 
 For example, build the `material_sandbox` sample and run it from the `out` directory with:
 
-```bat
-samples\Debug\material_sandbox.exe ..\assets\models\monkey\monkey.obj
+```
+> samples\Debug\material_sandbox.exe ..\assets\models\monkey\monkey.obj
 ```
 
 You can also use CMake to invoke the build without opening Visual Studio. For example, from the
 `out` folder run the following command.
 
-```bat
-cmake --build . --target gltf_viewer --config Release
+```
+> cmake --build . --target gltf_viewer --config Release
 ```
 
 ### Android
@@ -237,8 +234,8 @@ To build Android on Windows machines, see [android/Windows.md](android/Windows.m
 The easiest way to build Filament for Android is to use `build.sh` and the
 `-p android` flag. For instance to build the release target:
 
-```shell
-./build.sh -p android release
+```
+$ ./build.sh -p android release
 ```
 
 Run `build.sh -h` for more information.
@@ -248,23 +245,23 @@ Run `build.sh -h` for more information.
 Invoke CMake in a build directory of your choice, inside of filament's directory. The commands
 below show how to build Filament for ARM 64-bit (`aarch64`).
 
-```shell
-mkdir out/android-build-release-aarch64
-cd out/android-build-release-aarch64
-cmake -G Ninja -DCMAKE_TOOLCHAIN_FILE=../../build/toolchain-aarch64-linux-android.cmake \
-      -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../android-release/filament ../..
+```
+$ mkdir out/android-build-release-aarch64
+$ cd out/android-build-release-aarch64
+$ cmake -G Ninja -DCMAKE_TOOLCHAIN_FILE=../../build/toolchain-aarch64-linux-android.cmake \
+        -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../android-release/filament ../..
 ```
 
 And then invoke `ninja`:
 
-```shell
-ninja install
+```
+$ ninja install
 ```
 
 or
 
-```shell
-ninja install/strip
+```
+$ ninja install/strip
 ```
 
 This will generate Filament's Android binaries in `out/android-release`. This location is important
@@ -296,8 +293,8 @@ AAR.
 Alternatively you can build the AAR from the command line by executing the following in the
 `android/` directory:
 
-```shell
-./gradlew -Pcom.google.android.filament.dist-dir=../../out/android-release/filament assembleRelease
+```
+$ ./gradlew -Pcom.google.android.filament.dist-dir=../../out/android-release/filament assembleRelease
 ```
 
 The `-Pcom.google.android.filament.dist-dir` can be used to specify a different installation
@@ -311,7 +308,7 @@ sure to add the newly created module as a dependency to your application.
 If you do not wish to include all supported ABIs, make sure to create the appropriate flavors in
 your Gradle build file. For example:
 
-```gradle
+```
 flavorDimensions 'cpuArch'
 productFlavors {
     arm8 {
@@ -353,7 +350,7 @@ started, follow the instructions for building Filament on your platform ([macOS]
 Next, you need to install the Emscripten SDK. The following instructions show how to install the
 same version that our continuous builds use.
 
-```shell
+```
 cd <your chosen parent folder for the emscripten SDK>
 curl -L https://github.com/emscripten-core/emsdk/archive/refs/tags/3.1.15.zip > emsdk.zip
 unzip emsdk.zip ; mv emsdk-* emsdk ; cd emsdk
@@ -364,7 +361,7 @@ source ./emsdk_env.sh
 
 After this you can invoke the [easy build](#easy-build) script as follows:
 
-```shell
+```
 export EMSDK=<your chosen home for the emscripten SDK>
 ./build.sh -p webgl release
 ```
@@ -374,7 +371,7 @@ creates a `samples` folder that can be used as the root of a simple static web s
 cannot open the HTML directly from the filesystem due to CORS. We recommend using the emrun tool
 to create a quick localhost server:
 
-```shell
+```
 emrun out/cmake-webgl-release/web/samples --no_browser --port 8000
 ```
 
@@ -395,7 +392,7 @@ Some of the samples accept FBX/OBJ meshes while others rely on the `filamesh` fi
 generate a `filamesh ` file from an FBX/OBJ asset, run the `filamesh` tool
 (`./tools/filamesh/filamesh` in your build directory):
 
-```shell
+```
 filamesh ./assets/models/monkey/monkey.obj monkey.filamesh
 ```
 
@@ -405,7 +402,7 @@ files for the IBL (which are PNGs containing `R11F_G11F_B10F` data) or a path to
 containing two `.ktx` files (one for the IBL itself, one for the skybox). To generate an IBL
 simply use this command:
 
-```shell
+```
 cmgen -f ktx -x ./ibls/ my_ibl.exr
 ```
 
@@ -427,9 +424,9 @@ value is the desired roughness between 0 and 1.
 To generate the documentation you must first install `doxygen` and `graphviz`, then run the 
 following commands:
 
-```shell
-cd filament/filament
-doxygen docs/doxygen/filament.doxygen
+```
+$ cd filament/filament
+$ doxygen docs/doxygen/filament.doxygen
 ```
 
 Finally simply open `docs/html/index.html` in your web browser.
@@ -439,7 +436,7 @@ Finally simply open `docs/html/index.html` in your web browser.
 To try out Filament's Vulkan support with SwiftShader, first build SwiftShader and set the
 `SWIFTSHADER_LD_LIBRARY_PATH` variable to the folder that contains `libvk_swiftshader.dylib`:
 
-```shell
+```
 git clone https://github.com/google/swiftshader.git
 cd swiftshader/build
 cmake .. &&  make -j
@@ -454,7 +451,7 @@ Continuous testing turnaround can be quite slow if you need to build SwiftShader
 provide an Ubuntu-based Docker image that has it already built. The Docker image also includes
 everything necessary for building Filament. You can fetch and run the image as follows:
 
-```shell
+```
 docker pull ghcr.io/filament-assets/swiftshader
 docker run -it ghcr.io/filament-assets/swiftshader
 ```

CMakeLists.txt

@@ -3,14 +3,6 @@
 # ==================================================================================================
 cmake_minimum_required(VERSION 3.19)
 
-# ==================================================================================================
-# Toolchain configuration
-# ==================================================================================================
-if (APPLE AND NOT IOS)
-    # This must be set before project() is called
-    set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15 CACHE STRING "")
-endif()
-
 # ==================================================================================================
 # Project declaration
 # ==================================================================================================
@@ -39,8 +31,6 @@ option(FILAMENT_SKIP_SDL2 "Skip dependencies of SDL2, and SDL2" OFF)
 
 option(FILAMENT_LINUX_IS_MOBILE "Treat Linux as Mobile" OFF)
 
-option(FILAMENT_ENABLE_ASAN_UBSAN "Enable Address and Undefined Behavior Sanitizers" OFF)
-
 set(FILAMENT_NDK_VERSION "" CACHE STRING
     "Android NDK version or version prefix to be used when building for Android."
 )
@@ -77,30 +67,25 @@ endif()
 # ==================================================================================================
 find_program(CCACHE_PROGRAM ccache)
 if (CCACHE_PROGRAM)
-    if (WIN32)
-        set(CMAKE_C_COMPILER_LAUNCHER   "${CCACHE_PROGRAM}")
-        set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
+    set(C_LAUNCHER   "${CCACHE_PROGRAM}")
+    set(CXX_LAUNCHER "${CCACHE_PROGRAM}")
+
+    configure_file(build/launch-c.in   launch-c)
+    configure_file(build/launch-cxx.in launch-cxx)
+
+    execute_process(COMMAND chmod a+rx
+        "${CMAKE_BINARY_DIR}/launch-c"
+        "${CMAKE_BINARY_DIR}/launch-cxx"
+    )
+
+    if (CMAKE_GENERATOR STREQUAL "Xcode")
+        set(CMAKE_XCODE_ATTRIBUTE_CC         "${CMAKE_BINARY_DIR}/launch-c")
+        set(CMAKE_XCODE_ATTRIBUTE_CXX        "${CMAKE_BINARY_DIR}/launch-cxx")
+        set(CMAKE_XCODE_ATTRIBUTE_LD         "${CMAKE_BINARY_DIR}/launch-c")
+        set(CMAKE_XCODE_ATTRIBUTE_LDPLUSPLUS "${CMAKE_BINARY_DIR}/launch-cxx")
     else()
-        set(C_LAUNCHER   "${CCACHE_PROGRAM}")
-        set(CXX_LAUNCHER "${CCACHE_PROGRAM}")
-
-        configure_file(build/launch-c.in   launch-c)
-        configure_file(build/launch-cxx.in launch-cxx)
-
-        execute_process(COMMAND chmod a+rx
-            "${CMAKE_CURRENT_BINARY_DIR}/launch-c"
-            "${CMAKE_CURRENT_BINARY_DIR}/launch-cxx"
-        )
-
-        if (CMAKE_GENERATOR STREQUAL "Xcode")
-            set(CMAKE_XCODE_ATTRIBUTE_CC         "${CMAKE_CURRENT_BINARY_DIR}/launch-c")
-            set(CMAKE_XCODE_ATTRIBUTE_CXX        "${CMAKE_CURRENT_BINARY_DIR}/launch-cxx")
-            set(CMAKE_XCODE_ATTRIBUTE_LD         "${CMAKE_CURRENT_BINARY_DIR}/launch-c")
-            set(CMAKE_XCODE_ATTRIBUTE_LDPLUSPLUS "${CMAKE_CURRENT_BINARY_DIR}/launch-cxx")
-        else()
-            set(CMAKE_C_COMPILER_LAUNCHER        "${CMAKE_CURRENT_BINARY_DIR}/launch-c")
-            set(CMAKE_CXX_COMPILER_LAUNCHER      "${CMAKE_CURRENT_BINARY_DIR}/launch-cxx")
-        endif()
+        set(CMAKE_C_COMPILER_LAUNCHER        "${CMAKE_BINARY_DIR}/launch-c")
+        set(CMAKE_CXX_COMPILER_LAUNCHER      "${CMAKE_BINARY_DIR}/launch-cxx")
     endif()
 endif()
 
@@ -114,10 +99,6 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 # ==================================================================================================
 if (UNIX AND NOT APPLE AND NOT ANDROID AND NOT WEBGL)
     set(LINUX TRUE)
-else()
-    # since cmake 3.25 LINUX is automatically set based on CMAKE_SYSTEM_NAME, which the android
-    # cmake files are setting to "Linux".
-    set(LINUX FALSE)
 endif()
 
 if (LINUX)
@@ -132,16 +113,11 @@ if (LINUX)
             add_definitions(-DFILAMENT_SUPPORTS_XCB)
         endif()
 
-        # Default Swiftshader build does not enable the xlib extension
-        if (FILAMENT_SUPPORTS_XLIB AND FILAMENT_USE_SWIFTSHADER)
-            set(FILAMENT_SUPPORTS_XLIB OFF)
-        endif()
-
         if (FILAMENT_SUPPORTS_XLIB)
             add_definitions(-DFILAMENT_SUPPORTS_XLIB)
         endif()
 
-        if (FILAMENT_SUPPORTS_XCB OR FILAMENT_SUPPORTS_XLIB)
+        if (FILAMENT_SUPPORTS_XCB OR FILAMENT_SUPORTS_XLIB)
             add_definitions(-DFILAMENT_SUPPORTS_X11)
             set(FILAMENT_SUPPORTS_X11 TRUE)
         endif()
@@ -380,12 +356,6 @@ if (ANDROID OR IOS OR WEBGL)
     endif()
 endif()
 
-# Turn off exceptions on iOS debug as well. This fixes an availability error we see when using
-# std::visit, which is not supported on iOS 11.0 when exceptions are enabled.
-if (IOS)
-    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-exceptions")
-endif()
-
 # With WebGL, we disable RTTI even for debug builds because we pass emscripten::val back and forth
 # between C++ and JavaScript in order to efficiently access typed arrays, which are unbound.
 # NOTE: This is not documented in emscripten so we should consider a different approach.
@@ -400,10 +370,10 @@ endif()
 # ==================================================================================================
 # Debug compiler flags
 # ==================================================================================================
-if (FILAMENT_ENABLE_ASAN_UBSAN)
-   set(EXTRA_SANITIZE_OPTIONS "-fsanitize=address -fsanitize=undefined")
-endif()
-
+# ASAN is deactivated for now because:
+#  -fsanitize=undefined causes extremely long link times
+#  -fsanitize=address causes a crash with assimp, which we can't explain for now
+#set(EXTRA_SANITIZE_OPTIONS "-fsanitize=undefined -fsanitize=address")
 if (NOT MSVC AND NOT WEBGL)
     set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fstack-protector")
 endif()
@@ -523,14 +493,9 @@ if (FILAMENT_SUPPORTS_METAL)
     set(MATC_API_FLAGS ${MATC_API_FLAGS} -a metal)
 endif()
 
-# Enable debug info (preserves names in SPIR-V)
-if (FILAMENT_ENABLE_MATDBG)
-    set(MATC_OPT_FLAGS ${MATC_OPT_FLAGS} -d)
-endif()
-
-# Disable optimizations
+# Disable optimizations and enable debug info (preserves names in SPIR-V)
 if (FILAMENT_DISABLE_MATOPT)
-    set(MATC_OPT_FLAGS ${MATC_OPT_FLAGS} -g)
+    set(MATC_OPT_FLAGS -gd)
 endif()
 
 set(MATC_BASE_FLAGS ${MATC_API_FLAGS} -p ${MATC_TARGET} ${MATC_OPT_FLAGS})
@@ -585,7 +550,7 @@ function(list_licenses OUTPUT MODULES)
         endif()
     endforeach()
     configure_file(${FILAMENT}/build/licenses.inc.in ${OUTPUT})
-endfunction()
+endfunction(list_licenses)
 
 set(COMBINE_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/build/linux/combine-static-libs.sh")
 if (WIN32)
@@ -706,7 +671,6 @@ add_subdirectory(${EXTERNAL}/robin-map/tnt)
 add_subdirectory(${EXTERNAL}/smol-v/tnt)
 add_subdirectory(${EXTERNAL}/benchmark/tnt)
 add_subdirectory(${EXTERNAL}/meshoptimizer/tnt)
-add_subdirectory(${EXTERNAL}/mikktspace)
 add_subdirectory(${EXTERNAL}/cgltf/tnt)
 add_subdirectory(${EXTERNAL}/draco/tnt)
 add_subdirectory(${EXTERNAL}/jsmn/tnt)

CONTRIBUTING.md

@@ -27,7 +27,7 @@ again.
 
 ## Code Style
 
-See [CODE_STYLE.md](/CODE_STYLE.md)
+See [CodeStyle.md](/CODE_STYLE.md)
 
 ## Code reviews
 

LICENSE

@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2023 The Android Open Source Project
+   Copyright [yyyy] [name of copyright owner]
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

NEW_RELEASE_NOTES.md

@@ -1,9 +0,0 @@
-# Filament Release Notes log
-
-**If you are merging a PR into main**: please add the release note below, under the *Release notes
-for next branch cut* header.
-
-**If you are cherry-picking a commit into an rc/ branch**: add the release note under the
-appropriate header in [RELEASE_NOTES.md](./RELEASE_NOTES.md).
-
-## Release notes for next branch cut

README.md

@@ -31,7 +31,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.google.android.filament:filament-android:1.43.1'
+    implementation 'com.google.android.filament:filament-android:1.28.2'
 }
 ```
 
@@ -40,8 +40,8 @@ Here are all the libraries available in the group `com.google.android.filament`:
 | Artifact      | Description   |
 | ------------- | ------------- |
 | [![filament-android](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filament-android/badge.svg?subject=filament-android)](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filament-android)  | The Filament rendering engine itself. |
-| [![filament-android-debug](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filament-android-debug/badge.svg?subject=filament-android-debug)](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filament-android-debug)  | Debug version of `filament-android`. |
 | [![gltfio-android](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/gltfio-android/badge.svg?subject=gltfio-android)](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/gltfio-android) | A glTF 2.0 loader for Filament, depends on `filament-android`. |
+| [![gltfio-android-lite](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/gltfio-android-lite/badge.svg?subject=gltfio-android-lite)](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/gltfio-android-lite) | Trimmed version of `gltfio` that does not support some glTF extensions. |
 | [![filament-utils-android](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filament-utils-android/badge.svg?subject=filament-utils-android)](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filament-utils-android) | KTX loading, Kotlin math, and camera utilities, depends on `gltfio-android`. |
 | [![filamat-android](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filamat-android/badge.svg?subject=filamat-android)](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filamat-android) | A runtime material builder/compiler. This library is large but contains a full shader compiler/validator/optimizer and supports both OpenGL and Vulkan. |
 | [![filamat-android-lite](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filamat-android-lite/badge.svg?subject=filamat-android-lite)](https://maven-badges.herokuapp.com/maven-central/com.google.android.filament/filamat-android-lite) | A much smaller alternative to `filamat-android` that can only generate OpenGL shaders. It does not provide validation or optimizations. |
@@ -50,8 +50,8 @@ Here are all the libraries available in the group `com.google.android.filament`:
 
 iOS projects can use CocoaPods to install the latest release:
 
-```shell
-pod 'Filament', '~> 1.43.1'
+```
+pod 'Filament', '~> 1.28.2'
 ```
 
 ### Snapshots
@@ -117,9 +117,9 @@ steps:
 - Image-based lighting
 - Physically-based camera (shutter speed, sensitivity and aperture)
 - Physical light units
-- Point lights, spot lights, and directional light
+- Point lights, spot lights and directional light
 - Specular anti-aliasing
-- Point, spot, and directional light shadows
+- Spot and directional light shadows
 - Cascaded shadows
 - EVSM, PCSS, DPCF, or PCF shadows
 - Transparent shadows

RELEASE_GUIDE.md

@@ -9,15 +9,26 @@ Before starting, ensure that each of these branches is up-to-date with origin:
 - rc/$RELEASE
 - main
 
-## 0. Check versions.
+## 0. Make sure the rc/$RELEASE branch has the correct version.
 
-Make sure the rc/$RELEASE branch has the correct Filament version. It should have the version
-corresponding to its name, $RELEASE.
+It should have the version corresponding to its name, $RELEASE.
 
-Make sure `MATERIAL_VERSION` has been bumped to a new version if this is a MAJOR or MINOR release
-(first two version numbers).
+## 1. Update RELEASE_NOTES.md on the rc branch.
 
-## 1. Bump Filament versions on main to $RELEASE.
+Checkout the rc/$RELEASE branch. In RELEASE_NOTES.md, locate the header corresponding to $RELEASE
+and write release notes. To see which commits make up the release, run:
+
+```
+build/common/release.sh -c rc/$RELEASE
+```
+
+Commit the changes to rc/$RELEASE with the title:
+
+```
+Update RELEASE_NOTES for $RELEASE
+```
+
+## 2. Bump versions on main to $RELEASE.
 
 Checkout main and run the following command to bump Filament's version to $RELEASE:
 
@@ -33,19 +44,49 @@ Release Filament $RELEASE
 
 Do not push to origin yet.
 
-## 2. Update RELEASE_NOTES.md on main.
+## 3. Cherry-pick RELEASE_NOTES change from rc branch to main.
 
-Create a new header in RELEASE_NOTES.md for $NEXT_RELEASE. Copy the release notes in
-NEW_RELEASE_NOTES.md to RELEASE_NOTES.md under the new header. Clear NEW_RELEASE_NOTES.md.
+```
+git cherry-pick rc/$RELEASE
+```
 
-Amend these changes to the "Release Filament $RELEASE" commit.
+Update the headers. The "main branch" header becomes a header for $NEXT_RELEASE, and a new "main
+branch" header is added.
+
+For example, this:
+
+```
+## main branch
+- foo
+- bar
+
+## v1.9.3
+- baz
+- bat
+```
+
+becomes:
+
+```
+## main branch
+
+## v1.9.4
+- foo
+- bar
+
+## v1.9.3
+- baz
+- bat
+```
+
+Ammend these changes to the cherry-picked change.
 
 ```
 git add -u
 git commit --amend --no-edit
 ```
 
-## 3. Run release script.
+## 4. Run release script.
 
 ```
 build/common/release.sh rc/$RELEASE rc/$NEXT_RELEASE
@@ -54,18 +95,18 @@ build/common/release.sh rc/$RELEASE rc/$NEXT_RELEASE
 This script will merge rc/$RELEASE into release, delete the rc branch, and create a new rc
 branch called rc/$NEXT_RELEASE. Verify that everything looks okay locally.
 
-## 4. Push the release branch.
+## 5. Push the release branch.
 
 ```
 git push origin release
 ```
 
-## 5. Create the GitHub release.
+## 6. Create the GitHub release.
 
 Use the GitHub UI to create a GitHub release corresponding to $RELEASE version.
 Make sure the target is set to the release branch.
 
-## 6. Delete the old rc branch (optional).
+## 7. Delete the old rc branch (optional).
 
 This step is optional. The old rc branch may be left alive for a few weeks for posterity.
 
@@ -73,7 +114,7 @@ This step is optional. The old rc branch may be left alive for a few weeks for p
 git push origin --delete rc/$RELEASE
 ```
 
-## 7. Bump the version on the new rc branch to $NEXT_RELEASE.
+## 8. Bump the version on the new rc branch to $NEXT_RELEASE.
 
 ```
 git checkout rc/$NEXT_RELEASE
@@ -86,19 +127,19 @@ Commit the changes to rc/$NEXT_RELEASE with the title:
 Bump version to $NEXT_RELEASE
 ```
 
-## 8. Push main.
+## 9. Push main.
 
 ```
 git push origin main
 ```
 
-## 9. Push the new rc branch.
+## 10. Push the new rc branch.
 
 ```
 git push origin -u rc/$NEXT_RELEASE
 ```
 
-## 10. Rebuild the GitHub release (if failed).
+## 11. Rebuild the GitHub release (if failed).
 
 Sometimes the GitHub release job will fail. In this case, you can manually re-run the release job.
 

RELEASE_NOTES.md

@@ -3,201 +3,7 @@
 This file contains one line summaries of commits that are worthy of mentioning in release notes.
 A new header is inserted each time a *tag* is created.
 
-**Do not edit this file unless you are performing a release or cherry-picking into an rc/ branch.**
-Instead, if you are authoring a PR for the main branch, add your release note to
-[NEW_RELEASE_NOTES.md](./NEW_RELEASE_NOTES.md).
-
-## v1.43.1
-
-## v1.43.0
-
-- gltfio: Fix possible change of scale sign when decomposing transform matrix for animation
-- engine: Fixes "stable" shadows (see b/299310624)
-
-## v1.42.2
-
-- Fix possible NPE when updating fog options from Java/Kotlin
-- The `emissive` property was not applied properly to `MASKED` materials, and could cause
-  dark fringes to appear (recompile materials)
-- Allow glTF materials with transmission/volume extensions to choose their alpha mode
-  instead of forcing `MASKED`
-- Fix a crash in gltfio when not using ubershaders
-- Use flatmat for mat parameter in jsbinding
-- Fix TextureFlags for sheenRoughnessMap when textures of sheenRoughnessMap and sheenColorMap is same
-- Directional shadows can now be transformed (b/297095805)
-
-## v1.42.1
-
-- Fix potential `EXC_BAD_ACCESS` with Metal backend: b/297059776
-- `setFrameCompletedCallback` now takes a `backend::CallbackHandler`.
-
-## v1.42.0
-
-- engine: add preliminary support for instanced stereoscopic rendering [⚠️ **Recompile materials**]
-
-## v1.41.0
-
-- backend: fix #6997 : picking can fail on Adreno [⚠️ **New Material Version**]
-- backend: A partial workaround for PowerVR devices (#5118, b/190221124) [⚠️ **Recompile Materials**]
-
-## v1.40.5
-
-- backend: Disable timer queries on all Mali GPUs (fixes b/233754398)
-- engine: Add a way to query the validity of most filament objects (see `Engine::isValid`)
-- opengl: fix b/290388359 : possible crash when shutting down the engine
-- engine: Improve precision of frame time measurement when using emulated TimerQueries
-- backend: Improve frame pacing on Android and Vulkan.
-- backend: workaround b/291140208 (gltf_viewer crashes on Nexus 6P)
-- engine: support `setDepthFunc` for `MaterialInstance`
-- web: Added setDepthFunc()/getDepthFunc() to MaterialInstance
-- android: Added setDepthFunc()/getDepthFunc() to MaterialInstance
-
-## v1.40.4
-
-- gltfio: fix crash when compute morph target without material
-- matc: fix buggy `variant-filter` flag
-- web: Added missing setMat3Parameter()/setMat4Parameter() to MaterialInstance
-- opengl: fix b/290670707 : crash when using the blob cache
-- engine: fix a crash with `Material::compile()` when a callback is specified
-
-## v1.40.3
-
-## v1.40.2
-
-- rendering: dynamic resolution would not work with a translucent render target and quality > low
-- Java/Kotlin: user callbacks were not invoked on successful texture upload
-
-## v1.40.1
-
-## v1.40.0
-
-- matc: fix VSM high precision option on mobile [⚠️ **Recompile materials**]
-- vulkan: support sRGB swap chain
-- Add new `getMaxAutomaticInstances()` API on `Engine` to get max supported automatic instances.
-- UiHelper: fix jank when a `TextureView` is resized (fixes b\282220665)
-- backend: parallel shader compilation support. This breaks and improves the recent `Material::compile` API.
-
-## v1.39.0
-
-- matc: workaround a bug in spirv-tools causing vsm to fail [⚠️ **Recompile materials**]
-
-## v1.38.0
-
-- engine: a new feature to set a transform on the global-scale fog  [⚠️ **Recompile materials**]
-- engine: large-scale fog can now be opted-out on a per-renderable basis
-- engine: improve froxelizer resource efficiency [⚠️ **Recompile materials**]
-- matc: better accounting and validation of used samplers in user materials
-- engine: add support for sampling fog color from a custom texture [⚠️ **Recompile materials**]
-- vulkan: introduce new custom swapchain API
-- vulkan: new context sharing API
-
-## v1.37.0
-
-- backend: added `Platform` blob cache APIs, typically used to cache programs [⚠️ **Recompile materials**]
-
-## v1.36.0
-
-- engine: a local transform can now be supplied for each GPU instance [⚠️ **Recompile materials**]
-- everything: Add limited support for OpenGL ES 2.0 devices. [⚠️ **Recompile Materials**]
-- platform: New virtual on `OpenGLPlatform` to preserve ancillary buffers
-
-## v1.35.0
-
-- materials: Materials can now access up to 4 global `vec4` visible by all materials [⚠️ **Recompile Materials**]
-
-## v1.34.0
-
-- materials: picking is done in float (prepare for ES2) [⚠️ **New Material Version**]
-- materials: postLightingBlending is now applied before the fog [⚠️ **Recompile materials**]
-- vulkan: fix adreno optimized material artifacts [⚠️ **Recompile Materials**]
-
-## v1.33.0
-
-- materials: prepare ES2 support [⚠️ **New Material Version**]
-
-## v1.32.4
-
-- engine: Add support for _constant parameters_, which are constants that can be specialized after material compilation.
-- materials: improved size reduction of OpenGL/Metal shaders by ~65% when compiling materials with
-             size optimizations (`matc -S`) [⚠️ **Recompile Materials**]
-- engine: fix potential crash on Metal devices with A8X GPU (iPad Air 2) [⚠️ **Recompile Materials**]
-- opengl: support the external image on macOS
-
-## v1.32.3
-
-- fog: added an option to disable the fog after a certain distance [⚠️ **Recompile Materials**].
-- fog: fog color now takes exposure and IBL intensity into account [⚠️ **Recompile Materials**].
-- materials: implement cascades debugging as a post-process [⚠️ **Recompile Materials**].
-- materials: use 9 digits or less for floats [⚠️ **Recompile Materials**].
-- gltfio: fix skinning when objects are far from the origin
-- materials: remove 4 unneeded variants from `unlit` materials [⚠️ **Recompile Materials**].
-
-## v1.32.2
-
-- lighting: the sun disc was computed in low/medium quality instead of high quality. This will
-  provide performance improvements to mobile devices [⚠️ **Recompile Materials**]
-
-## v1.32.1
-
-## v1.32.0
-
-- fog: fixed fog height falloff and computation precision on mobile [⚠️ **Recompile Materials**]
-- materials: new alphaToCoverage property can be used to control alpha to coverage behavior
-- materials: added `getUserWorldFromWorldMatrix()` and `getUserWorldPosition()` to retrieve the
-  API-level (user) world position in materials. Deprecated `getWorldOffset()`. [⚠️ **Recompile
-  Materials**]
-- engine: fix precision issue with `shading_view` in large scenes
-- vulkan: readPixels is now async (#6560)
-
-## v1.31.7
-
-## v1.31.6
-
-- engine: the default render channel is now 2 instead of 0
-- gltfio: Fix crash when a MIME type has no texture provider
-
-## v1.31.5
-
-- gltfio: fix potential early freeing of data provided with `ResourceLoader::addResourceData`.
-
-## v1.31.4
-
-- engine: fix broken picking [⚠️ **Recompile Materials to get the fix**]
-- engine: added support for sRGB swapchains. See `SwapChain.h`
-- bluegl: support Windows32
-
-## v1.31.3
-
-- vulkan: fix memory leak in readPixels
-- engine: added support for draw-commands channels (stronger ordering of commands/renderables)
-
-## v1.31.2
-
-## v1.31.1
-
-- gltfio: expose joint inverse bind matrices via method on FilamentInstance
-- filamesh: add error when uv coords size does not match num of vertices. (#6351)
-
-## v1.31.0
-
-- java: fix confusing typo in Camera documentation
-- engine: the output color space can be set on `ColorGrading`. This API currently has limitations,
-  please refer to the documentation for more details
-- Support for RGTC and BPTC texture compression
-- engine: fix TransformManager high precision mode when using transactions
-- web: added TypeScript definition for `Engine.destroy`
-- materials: `getNormalizedViewportCoord()` now returns the logical (i.e. user) viewport
-             normalized position and keeps z reversed [⚠️ **Recompile Materials**]
-- backend: workaround Adreno shader compiler bug (#6355) [⚠️ **Recompile Materials**]
-- geometry: change computing tangent basis from normal vector to use Frisvad's method
-
-## v1.30.0
-
-- engine: optimize per-shadow UBO [⚠️ **Recompile Materials**]
-- engine: fix potential memory corruption with larger scenes
-- engine: VSM's MSAA setting is now per-view instead of per-light [⚠️ **API Change**]
-
-## v1.29.0
+## main branch
 
 - gltfio: calculate primitive's AABB correctly.
 - gltfio: recompute bounding boxes with morph targets
@@ -207,7 +13,6 @@ Instead, if you are authoring a PR for the main branch, add your release note to
 
 ## v1.28.3
 
-
 - backend: add support for GGP platform
 - engine: primitives with `CullingMode::FRONT_AND_BACK` are now skipped.
 

android/Windows.md

@@ -135,7 +135,7 @@ gradlew -Pcom.google.android.filament.dist-dir=..\out\android-release\filament a
 If you're only interested in building SDK, you may skip samples build by passing a `com.google.android.filament.skip-samples` flag:
 
 ```
-gradlew -Pcom.google.android.filament.dist-dir=..\out\android-release\filament assembleRelease -Pcom.google.android.filament.skip-samples
+gradlew -Pcom.google.android.filament.dist-dir=..\out\android-release\filament assembleRelease -Pfilament_skip_samples
 ```
 
 

android/build.gradle

@@ -12,10 +12,7 @@
 //     When set, support for Vulkan will be excluded.
 //
 // com.google.android.filament.matdbg
-//     When set, enables matdbg
-//
-// com.google.android.filament.matnopt
-//     When set, disable shader optimizations.
+//     When set, enables matdbg, disables shader optimizations
 //
 // com.google.android.filament.skip-samples
 //     Exclude samples from the project. Useful to speed up compilation.
@@ -65,10 +62,6 @@ buildscript {
             .gradleProperty("com.google.android.filament.matdbg")
             .isPresent()
 
-    def matnopt = providers
-            .gradleProperty("com.google.android.filament.matnopt")
-            .isPresent()
-
     def abis = ["arm64-v8a", "armeabi-v7a", "x86_64", "x86"]
     def newAbis = providers
             .gradleProperty("com.google.android.filament.abis")
@@ -79,16 +72,15 @@ buildscript {
     }
 
     ext.versions = [
-        'jdk': 17,
         'minSdk': 19,
         'targetSdk': 33,
         'compileSdk': 33,
-        'kotlin': '1.9.0',
-        'kotlin_coroutines': '1.7.2',
-        'buildTools': '34.0.0',
+        'kotlin': '1.7.10',
+        'kotlin_coroutines': '1.6.1',
+        'buildTools': '33.0.0',
         'ndk': '25.1.8937393',
-        'androidx_core': '1.10.1',
-        'androidx_annotations': '1.6.0'
+        'androidx_core': '1.9.0',
+        'androidx_annotations': '1.3.0'
     ]
 
     ext.deps = [
@@ -104,7 +96,8 @@ buildscript {
     ]
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.1.0'
+        // NOTE: See TODO in gradle.properties once we move to Gradle 7.4
+        classpath 'com.android.tools.build:gradle:7.3.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${versions.kotlin}"
     }
 
@@ -116,7 +109,7 @@ buildscript {
         "-DFILAMENT_DIST_DIR=${filamentPath}".toString(),
         "-DFILAMENT_SUPPORTS_VULKAN=${excludeVulkan ? 'OFF' : 'ON'}".toString(),
         "-DFILAMENT_ENABLE_MATDBG=${matdbg ? 'ON' : 'OFF'}".toString(),
-        "-DFILAMENT_DISABLE_MATOPT=${matnopt ? 'ON' : 'OFF'}".toString()
+        "-DFILAMENT_DISABLE_MATOPT=${matdbg ? 'ON' : 'OFF'}".toString()
     ]
 
     ext.cppFlags = [
@@ -127,7 +120,6 @@ buildscript {
         "-fno-asynchronous-unwind-tables",
         "-fno-rtti",
         "-ffast-math",
-        "-fno-finite-math-only",
         "-ffp-contract=fast",
         "-fvisibility-inlines-hidden",
         "-fvisibility=hidden",
@@ -152,7 +144,7 @@ buildscript {
 }
 
 plugins {
-    id "io.github.gradle-nexus.publish-plugin" version "1.3.0"
+    id "io.github.gradle-nexus.publish-plugin" version "1.1.0"
 }
 
 // See https://github.com/gradle-nexus/publish-plugin
@@ -195,7 +187,6 @@ subprojects {
                 }
 
                 ndk {
-                    //noinspection ChromeOsAbiSupport
                     abiFilters(*rootProject.ext.abis)
                 }
 
@@ -216,8 +207,8 @@ subprojects {
             }
 
             compileOptions {
-                sourceCompatibility versions.jdk
-                targetCompatibility versions.jdk
+                sourceCompatibility JavaVersion.VERSION_1_8
+                targetCompatibility JavaVersion.VERSION_1_8
             }
         }
     }

android/buildSrc/src/main/groovy/FilamentPlugin.groovy

@@ -142,14 +142,6 @@ abstract class MaterialCompiler extends TaskWithBinary {
                 if (!exclude_vulkan) {
                     matcArgs += ['-a', 'vulkan']
                 }
-
-                def mat_no_opt = providers
-                        .gradleProperty("com.google.android.filament.matnopt")
-                        .forUseAtConfigurationTime().present
-                if (mat_no_opt) {
-                    matcArgs += ['-g']
-                }
-
                 matcArgs += ['-a', 'opengl', '-p', 'mobile', '-o', getOutputFile(file), file]
 
                 exec.exec {

android/filamat-android/build.gradle

@@ -17,17 +17,6 @@ android {
             }
         }
     }
-
-    publishing {
-        singleVariant("fullRelease") {
-            withSourcesJar()
-            withJavadocJar()
-        }
-        singleVariant("liteRelease") {
-            withSourcesJar()
-            withJavadocJar()
-        }
-    }
 }
 
 dependencies {

android/filamat-android/src/main/cpp/MaterialBuilder.cpp

@@ -250,13 +250,6 @@ Java_com_google_android_filament_filamat_MaterialBuilder_nMaterialBuilderMaskThr
     builder->maskThreshold(maskThreshold);
 }
 
-extern "C" JNIEXPORT void JNICALL
-Java_com_google_android_filament_filamat_MaterialBuilder_nMaterialBuilderAlphaToCoverage(JNIEnv*,
-        jclass, jlong nativeBuilder, jboolean enable) {
-    auto builder = (MaterialBuilder*) nativeBuilder;
-    builder->alphaToCoverage(enable);
-}
-
 extern "C" JNIEXPORT void JNICALL
 Java_com_google_android_filament_filamat_MaterialBuilder_nMaterialBuilderShadowMultiplier(
         JNIEnv*, jclass, jlong nativeBuilder, jboolean shadowMultiplier) {

android/filamat-android/src/main/java/com/google/android/filament/filamat/MaterialBuilder.java

@@ -360,12 +360,6 @@ public class MaterialBuilder {
         return this;
     }
 
-    @NonNull
-    public MaterialBuilder alphaToCoverage(boolean enable) {
-        nMaterialBuilderAlphaToCoverage(mNativeObject, enable);
-        return this;
-    }
-
     @NonNull
     public MaterialBuilder shadowMultiplier(boolean shadowMultiplier) {
         nMaterialBuilderShadowMultiplier(mNativeObject, shadowMultiplier);
@@ -590,7 +584,6 @@ public class MaterialBuilder {
     private static native void nMaterialBuilderDepthCulling(long nativeBuilder, boolean enable);
     private static native void nMaterialBuilderDoubleSided(long nativeBuilder, boolean doubleSided);
     private static native void nMaterialBuilderMaskThreshold(long nativeBuilder, float mode);
-    private static native void nMaterialBuilderAlphaToCoverage(long nativeBuilder, boolean enable);
 
     private static native void nMaterialBuilderShadowMultiplier(long mNativeObject,
             boolean shadowMultiplier);

android/filament-android/build.gradle

@@ -1,12 +1,5 @@
 android {
     namespace 'com.google.android.filament'
-
-    publishing {
-        singleVariant("release") {
-            withSourcesJar()
-            withJavadocJar()
-        }
-    }
 }
 
 dependencies {

android/filament-android/src/main/cpp/Engine.cpp

@@ -278,112 +278,6 @@ Java_com_google_android_filament_Engine_nDestroyEntity(JNIEnv*, jclass,
     engine->destroy(entity);
 }
 
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidRenderer(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeRenderer) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((Renderer*)nativeRenderer);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidView(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeView) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((View*)nativeView);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidScene(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeScene) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((Scene*)nativeScene);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidFence(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeFence) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((Fence*)nativeFence);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidStream(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeStream) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((Stream*)nativeStream);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidIndexBuffer(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeIndexBuffer) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((IndexBuffer*)nativeIndexBuffer);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidVertexBuffer(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeVertexBuffer) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((VertexBuffer*)nativeVertexBuffer);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidSkinningBuffer(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeSkinningBuffer) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((SkinningBuffer*)nativeSkinningBuffer);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidIndirectLight(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeIndirectLight) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((IndirectLight*)nativeIndirectLight);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidMaterial(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeMaterial) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((Material*)nativeMaterial);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidSkybox(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeSkybox) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((Skybox*)nativeSkybox);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidColorGrading(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeColorGrading) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((ColorGrading*)nativeColorGrading);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidTexture(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeTexture) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((Texture*)nativeTexture);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidRenderTarget(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeTarget) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((RenderTarget*)nativeTarget);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Engine_nIsValidSwapChain(JNIEnv*, jclass,
-        jlong nativeEngine, jlong nativeSwapChain) {
-    Engine* engine = (Engine *)nativeEngine;
-    return (jboolean)engine->isValid((SwapChain*)nativeSwapChain);
-}
-
 extern "C" JNIEXPORT void JNICALL
 Java_com_google_android_filament_Engine_nFlushAndWait(JNIEnv*, jclass,
         jlong nativeEngine) {

android/filament-android/src/main/cpp/LightManager.cpp

@@ -79,8 +79,7 @@ Java_com_google_android_filament_LightManager_nBuilderShadowOptions(JNIEnv* env,
         jfloat shadowFarHint, jboolean stable, jboolean lispsm,
         jfloat polygonOffsetConstant, jfloat polygonOffsetSlope,
         jboolean screenSpaceContactShadows, jint stepCount,
-        jfloat maxShadowDistance, jboolean elvsm, jfloat blurWidth, jfloat shadowBulbRadius,
-        jfloatArray transform) {
+        jfloat maxShadowDistance, jint vsmMsaaSamples, jboolean elvsm, jfloat blurWidth, jfloat shadowBulbRadius) {
     LightManager::Builder *builder = (LightManager::Builder *) nativeBuilder;
     LightManager::ShadowOptions shadowOptions {
             .mapSize = (uint32_t)mapSize,
@@ -98,23 +97,18 @@ Java_com_google_android_filament_LightManager_nBuilderShadowOptions(JNIEnv* env,
             .stepCount = uint8_t(stepCount),
             .maxShadowDistance = maxShadowDistance,
             .vsm = {
+                    .msaaSamples = (uint8_t) vsmMsaaSamples,
                     .elvsm = (bool)elvsm,
                     .blurWidth = blurWidth
             },
             .shadowBulbRadius = shadowBulbRadius
     };
-
     jfloat *nativeSplits = env->GetFloatArrayElements(splitPositions, NULL);
     const jsize splitCount = std::min((jsize) 3, env->GetArrayLength(splitPositions));
-    std::copy_n(nativeSplits, splitCount, shadowOptions.cascadeSplitPositions);
+    for (jsize i = 0; i < splitCount; i++) {
+        shadowOptions.cascadeSplitPositions[i] = nativeSplits[i];
+    }
     env->ReleaseFloatArrayElements(splitPositions, nativeSplits, 0);
-
-    jfloat* nativeTransform = env->GetFloatArrayElements(transform, NULL);
-    std::copy_n(nativeTransform,
-                std::min(4, env->GetArrayLength(transform)),
-                shadowOptions.transform.xyzw.v);
-    env->ReleaseFloatArrayElements(transform, nativeTransform, 0);
-
     builder->shadowOptions(shadowOptions);
 }
 

android/filament-android/src/main/cpp/Material.cpp

@@ -153,14 +153,6 @@ Java_com_google_android_filament_Material_nIsDoubleSided(JNIEnv*, jclass,
     return (jboolean) material->isDoubleSided();
 }
 
-extern "C"
-JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_Material_nIsAlphaToCoverageEnabled(JNIEnv*, jclass,
-        jlong nativeMaterial) {
-    Material* material = (Material*) nativeMaterial;
-    return (jboolean) material->isAlphaToCoverageEnabled();
-}
-
 extern "C"
 JNIEXPORT jfloat JNICALL
 Java_com_google_android_filament_Material_nGetMaskThreshold(JNIEnv*, jclass,

android/filament-android/src/main/cpp/MaterialInstance.cpp

@@ -246,21 +246,17 @@ Java_com_google_android_filament_MaterialInstance_nSetFloatParameterArray(JNIEnv
     env->ReleaseStringUTFChars(name_, name);
 }
 
-// defined in TextureSampler.cpp
-namespace filament::JniUtils {
-    TextureSampler from_long(jlong params) noexcept;
-} // TextureSamplerJniUtils
-
 extern "C"
 JNIEXPORT void JNICALL
 Java_com_google_android_filament_MaterialInstance_nSetParameterTexture(
         JNIEnv *env, jclass, jlong nativeMaterialInstance, jstring name_,
-        jlong nativeTexture, jlong sampler_) {
+        jlong nativeTexture, jint sampler_) {
     MaterialInstance* instance = (MaterialInstance*) nativeMaterialInstance;
     Texture* texture = (Texture*) nativeTexture;
+    TextureSampler& sampler = reinterpret_cast<TextureSampler&>(sampler_);
 
     const char *name = env->GetStringUTFChars(name_, 0);
-    instance->setParameter(name, texture, JniUtils::from_long(sampler_));
+    instance->setParameter(name, texture, sampler);
     env->ReleaseStringUTFChars(name_, name);
 }
 
@@ -361,14 +357,6 @@ Java_com_google_android_filament_MaterialInstance_nSetDepthCulling(JNIEnv*,
     instance->setDepthCulling(enable);
 }
 
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_google_android_filament_MaterialInstance_nSetDepthFunc(JNIEnv*,
-        jclass, jlong nativeMaterialInstance, jlong function) {
-    MaterialInstance* instance = (MaterialInstance*) nativeMaterialInstance;
-    instance->setDepthFunc(static_cast<MaterialInstance::DepthFunc>(function));
-}
-
 extern "C"
 JNIEXPORT void JNICALL
 Java_com_google_android_filament_MaterialInstance_nSetStencilCompareFunction(JNIEnv*, jclass,
@@ -469,6 +457,7 @@ extern "C"
 JNIEXPORT jfloat JNICALL
 Java_com_google_android_filament_MaterialInstance_nGetMaskThreshold(JNIEnv* env, jclass clazz,
         jlong nativeMaterialInstance) {
+    // TODO: implement nGetMaskThreshold()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return instance->getMaskThreshold();
 }
@@ -477,6 +466,7 @@ extern "C"
 JNIEXPORT jfloat JNICALL
 Java_com_google_android_filament_MaterialInstance_nGetSpecularAntiAliasingVariance(JNIEnv* env,
         jclass clazz, jlong nativeMaterialInstance) {
+    // TODO: implement nGetSpecularAntiAliasingVariance()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return instance->getSpecularAntiAliasingVariance();
 }
@@ -485,6 +475,7 @@ extern "C"
 JNIEXPORT jfloat JNICALL
 Java_com_google_android_filament_MaterialInstance_nGetSpecularAntiAliasingThreshold(JNIEnv* env,
         jclass clazz, jlong nativeMaterialInstance) {
+    // TODO: implement nGetSpecularAntiAliasingThreshold()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return instance->getSpecularAntiAliasingThreshold();
 }
@@ -493,6 +484,7 @@ extern "C"
 JNIEXPORT jboolean JNICALL
 Java_com_google_android_filament_MaterialInstance_nIsDoubleSided(JNIEnv* env, jclass clazz,
         jlong nativeMaterialInstance) {
+    // TODO: implement nIsDoubleSided()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return instance->isDoubleSided();
 }
@@ -501,6 +493,7 @@ extern "C"
 JNIEXPORT jint JNICALL
 Java_com_google_android_filament_MaterialInstance_nGetCullingMode(JNIEnv* env, jclass clazz,
         jlong nativeMaterialInstance) {
+    // TODO: implement nGetCullingMode()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return (jint)instance->getCullingMode();
 }
@@ -509,6 +502,7 @@ extern "C"
 JNIEXPORT jboolean JNICALL
 Java_com_google_android_filament_MaterialInstance_nIsColorWriteEnabled(JNIEnv* env, jclass clazz,
         jlong nativeMaterialInstance) {
+    // TODO: implement nIsColorWriteEnabled()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return instance->isColorWriteEnabled();
 }
@@ -517,6 +511,7 @@ extern "C"
 JNIEXPORT jboolean JNICALL
 Java_com_google_android_filament_MaterialInstance_nIsDepthWriteEnabled(JNIEnv* env, jclass clazz,
         jlong nativeMaterialInstance) {
+    // TODO: implement nIsDepthWriteEnabled()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return instance->isDepthWriteEnabled();
 }
@@ -525,6 +520,7 @@ extern "C"
 JNIEXPORT jboolean JNICALL
 Java_com_google_android_filament_MaterialInstance_nIsStencilWriteEnabled(JNIEnv* env, jclass clazz,
         jlong nativeMaterialInstance) {
+    // TODO: implement nIsStencilWriteEnabled()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return instance->isStencilWriteEnabled();
 }
@@ -533,14 +529,7 @@ extern "C"
 JNIEXPORT jboolean JNICALL
 Java_com_google_android_filament_MaterialInstance_nIsDepthCullingEnabled(JNIEnv* env, jclass clazz,
         jlong nativeMaterialInstance) {
+    // TODO: implement nIsDepthCullingEnabled()
     MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
     return instance->isDepthCullingEnabled();
 }
-
-extern "C"
-JNIEXPORT jint JNICALL
-Java_com_google_android_filament_MaterialInstance_nGetDepthFunc(JNIEnv* env, jclass clazz,
-        jlong nativeMaterialInstance) {
-    MaterialInstance* instance = (MaterialInstance*)nativeMaterialInstance;
-    return (jint)instance->getDepthFunc();
-}

android/filament-android/src/main/cpp/RenderableManager.cpp

@@ -150,13 +150,6 @@ Java_com_google_android_filament_RenderableManager_nBuilderPriority(JNIEnv*, jcl
     builder->priority((uint8_t) priority);
 }
 
-extern "C" JNIEXPORT void JNICALL
-Java_com_google_android_filament_RenderableManager_nBuilderChannel(JNIEnv*, jclass,
-        jlong nativeBuilder, jint channel) {
-    RenderableManager::Builder *builder = (RenderableManager::Builder *) nativeBuilder;
-    builder->channel((uint8_t) channel);
-}
-
 extern "C" JNIEXPORT void JNICALL
 Java_com_google_android_filament_RenderableManager_nBuilderCulling(JNIEnv*, jclass,
         jlong nativeBuilder, jboolean enabled) {
@@ -201,19 +194,12 @@ Java_com_google_android_filament_RenderableManager_nBuilderSkinning(JNIEnv*, jcl
 }
 
 extern "C" JNIEXPORT void JNICALL
-Java_com_google_android_filament_RenderableManager_nBuilderEnableSkinningBuffers(JNIEnv*, jclass,
+Java_com_google_android_filament_RenderableManager_nEnableSkinningBuffers(JNIEnv*, jclass,
         jlong nativeBuilder, jboolean enabled) {
     RenderableManager::Builder *builder = (RenderableManager::Builder *) nativeBuilder;
     builder->enableSkinningBuffers(enabled);
 }
 
-extern "C" JNIEXPORT void JNICALL
-Java_com_google_android_filament_RenderableManager_nBuilderFog(JNIEnv*, jclass,
-        jlong nativeBuilder, jboolean enabled) {
-    RenderableManager::Builder *builder = (RenderableManager::Builder *) nativeBuilder;
-    builder->fog(enabled);
-}
-
 extern "C" JNIEXPORT jint JNICALL
 Java_com_google_android_filament_RenderableManager_nBuilderSkinningBones(JNIEnv* env, jclass,
         jlong nativeBuilder, jint boneCount, jobject bones, jint remaining) {
@@ -353,13 +339,6 @@ Java_com_google_android_filament_RenderableManager_nSetPriority(JNIEnv*, jclass,
     rm->setPriority((RenderableManager::Instance) i, (uint8_t) priority);
 }
 
-extern "C" JNIEXPORT void JNICALL
-Java_com_google_android_filament_RenderableManager_nSetChannel(JNIEnv*, jclass,
-        jlong nativeRenderableManager, jint i, jint channel) {
-    RenderableManager *rm = (RenderableManager *) nativeRenderableManager;
-    rm->setChannel((RenderableManager::Instance) i, (uint8_t) channel);
-}
-
 extern "C" JNIEXPORT void JNICALL
 Java_com_google_android_filament_RenderableManager_nSetCulling(JNIEnv*, jclass,
         jlong nativeRenderableManager, jint i, jboolean enabled) {
@@ -367,20 +346,6 @@ Java_com_google_android_filament_RenderableManager_nSetCulling(JNIEnv*, jclass,
     rm->setCulling((RenderableManager::Instance) i, enabled);
 }
 
-extern "C" JNIEXPORT void JNICALL
-Java_com_google_android_filament_RenderableManager_nSetFogEnabled(JNIEnv*, jclass,
-        jlong nativeRenderableManager, jint i, jboolean enabled) {
-    RenderableManager *rm = (RenderableManager *) nativeRenderableManager;
-    rm->setFogEnabled((RenderableManager::Instance) i, enabled);
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_RenderableManager_nGetFogEnabled(JNIEnv*, jclass,
-        jlong nativeRenderableManager, jint i) {
-    RenderableManager *rm = (RenderableManager *) nativeRenderableManager;
-    return (jboolean)rm->getFogEnabled((RenderableManager::Instance) i);
-}
-
 extern "C" JNIEXPORT void JNICALL
 Java_com_google_android_filament_RenderableManager_nSetCastShadows(JNIEnv*, jclass,
         jlong nativeRenderableManager, jint i, jboolean enabled) {

android/filament-android/src/main/cpp/SwapChain.cpp

@@ -16,7 +16,6 @@
 
 #include <jni.h>
 
-#include <filament/Engine.h>
 #include <filament/SwapChain.h>
 
 #include "common/CallbackUtils.h"
@@ -27,14 +26,9 @@ extern "C" JNIEXPORT void JNICALL
 Java_com_google_android_filament_SwapChain_nSetFrameCompletedCallback(JNIEnv* env, jclass,
         jlong nativeSwapChain, jobject handler, jobject runnable) {
     SwapChain* swapChain = (SwapChain*) nativeSwapChain;
-    auto* callback = JniCallback::make(env, handler, runnable);
-    swapChain->setFrameCompletedCallback(nullptr, [callback](SwapChain* swapChain) {
+    auto *callback = JniCallback::make(env, handler, runnable);
+    swapChain->setFrameCompletedCallback([](void* user) {
+        JniCallback* callback = (JniCallback*)user;
         JniCallback::postToJavaAndDestroy(callback);
-    });
-}
-
-extern "C" JNIEXPORT jboolean JNICALL
-Java_com_google_android_filament_SwapChain_nIsSRGBSwapChainSupported(JNIEnv *, jclass, jlong nativeEngine) {
-    Engine* engine = (Engine*) nativeEngine;
-    return (bool)SwapChain::isSRGBSwapChainSupported(*engine);
+    }, callback);
 }

android/filament-android/src/main/cpp/Texture.cpp

@@ -511,7 +511,9 @@ public:
 
 private:
     void* mData = nullptr;
-    jobject mBitmap{};
+    jobject mBitmap = nullptr;
+    jobject mHandler = nullptr;
+    jobject mCallback = nullptr;
     AndroidBitmapInfo mInfo{};
 };
 

android/filament-android/src/main/cpp/TextureSampler.cpp

@@ -18,139 +18,142 @@
 
 #include <filament/TextureSampler.h>
 
-#include <utils/algorithm.h>
-
 using namespace filament;
 
-namespace filament::JniUtils {
-
-jlong to_long(TextureSampler const& sampler) noexcept {
-    return jlong(utils::bit_cast<uint32_t>(sampler.getSamplerParams()));
-}
-
-TextureSampler from_long(jlong params) noexcept {
-    return TextureSampler{
-            utils::bit_cast<backend::SamplerParams>(
-                    static_cast<uint32_t>(params))};
-}
-
-} // namespace filament::JniUtils
-
-using namespace JniUtils;
-
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nCreateSampler(JNIEnv *, jclass, jint min,
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nCreateSampler(JNIEnv *env, jclass type, jint min,
         jint max, jint s, jint t, jint r) {
-    TextureSampler sampler(static_cast<TextureSampler::MinFilter>(min),
-                           static_cast<TextureSampler::MagFilter>(max),
-                           static_cast<TextureSampler::WrapMode>(s),
-                           static_cast<TextureSampler::WrapMode>(t),
-                           static_cast<TextureSampler::WrapMode>(r));
-    return to_long(sampler);
+    return TextureSampler(static_cast<TextureSampler::MinFilter>(min),
+            static_cast<TextureSampler::MagFilter>(max), static_cast<TextureSampler::WrapMode>(s),
+            static_cast<TextureSampler::WrapMode>(t),
+            static_cast<TextureSampler::WrapMode>(r)).getSamplerParams().u;
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nCreateCompareSampler(JNIEnv *, jclass,
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nCreateCompareSampler(JNIEnv *env, jclass type,
         jint mode, jint function) {
-    TextureSampler sampler(static_cast<TextureSampler::CompareMode>(mode),
-                           static_cast<TextureSampler::CompareFunc>(function));
-    return to_long(sampler);
+    return TextureSampler(static_cast<TextureSampler::CompareMode>(mode),
+            static_cast<TextureSampler::CompareFunc>(function)).getSamplerParams().u;
 }
 
 extern "C" JNIEXPORT jint JNICALL
-Java_com_google_android_filament_TextureSampler_nGetMinFilter(JNIEnv *, jclass, jlong sampler) {
-    return static_cast<jint>(from_long(sampler).getMinFilter());
+Java_com_google_android_filament_TextureSampler_nGetMinFilter(JNIEnv *env, jclass type,
+        jint sampler_) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
+    return static_cast<jint>(sampler.getMinFilter());
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nSetMinFilter(JNIEnv *, jclass, jlong sampler_, jint filter) {
-    TextureSampler sampler{from_long(sampler_)};
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nSetMinFilter(JNIEnv *env, jclass type,
+        jint sampler_, jint filter) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
     sampler.setMinFilter(static_cast<TextureSampler::MinFilter>(filter));
-    return to_long(sampler);
+    return sampler.getSamplerParams().u;
 }
 
 extern "C" JNIEXPORT jint JNICALL
-Java_com_google_android_filament_TextureSampler_nGetMagFilter(JNIEnv *, jclass, jlong sampler) {
-    return static_cast<jint>(from_long(sampler).getMagFilter());
+Java_com_google_android_filament_TextureSampler_nGetMagFilter(JNIEnv *env, jclass type,
+        jint sampler_) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
+    return static_cast<jint>(sampler.getMagFilter());
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nSetMagFilter(JNIEnv *, jclass, jlong sampler_, jint filter) {
-    TextureSampler sampler{from_long(sampler_)};
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nSetMagFilter(JNIEnv *env, jclass type,
+        jint sampler_, jint filter) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
     sampler.setMagFilter(static_cast<TextureSampler::MagFilter>(filter));
-    return to_long(sampler);
+    return sampler.getSamplerParams().u;
 }
 
 extern "C" JNIEXPORT jint JNICALL
-Java_com_google_android_filament_TextureSampler_nGetWrapModeS(JNIEnv *, jclass, jlong sampler) {
-    return static_cast<jint>(from_long(sampler).getWrapModeS());
+Java_com_google_android_filament_TextureSampler_nGetWrapModeS(JNIEnv *env, jclass type,
+        jint sampler_) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
+    return static_cast<jint>(sampler.getWrapModeS());
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nSetWrapModeS(JNIEnv *, jclass, jlong sampler_, jint mode) {
-    TextureSampler sampler{from_long(sampler_)};
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nSetWrapModeS(JNIEnv *env, jclass type,
+        jint sampler_, jint mode) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
     sampler.setWrapModeS(static_cast<TextureSampler::WrapMode>(mode));
-    return to_long(sampler);
+    return sampler.getSamplerParams().u;
 }
 
 extern "C" JNIEXPORT jint JNICALL
-Java_com_google_android_filament_TextureSampler_nGetWrapModeT(JNIEnv *, jclass, jlong sampler) {
-    return static_cast<jint>(from_long(sampler).getWrapModeT());
+Java_com_google_android_filament_TextureSampler_nGetWrapModeT(JNIEnv *env, jclass type,
+        jint sampler_) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
+    return static_cast<jint>(sampler.getWrapModeT());
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nSetWrapModeT(JNIEnv *, jclass, jlong sampler_, jint mode) {
-    TextureSampler sampler{from_long(sampler_)};
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nSetWrapModeT(JNIEnv *env, jclass type,
+        jint sampler_, jint mode) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
     sampler.setWrapModeT(static_cast<TextureSampler::WrapMode>(mode));
-    return to_long(sampler);
+    return sampler.getSamplerParams().u;
 }
 
 extern "C" JNIEXPORT jint JNICALL
-Java_com_google_android_filament_TextureSampler_nGetWrapModeR(JNIEnv *, jclass, jlong sampler) {
-    return static_cast<jint>(from_long(sampler).getWrapModeR());
+Java_com_google_android_filament_TextureSampler_nGetWrapModeR(JNIEnv *env, jclass type,
+        jint sampler_) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
+    return static_cast<jint>(sampler.getWrapModeR());
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nSetWrapModeR(JNIEnv *, jclass, jlong sampler_, jint mode) {
-    TextureSampler sampler{from_long(sampler_)};
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nSetWrapModeR(JNIEnv *env, jclass type,
+        jint sampler_, jint mode) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
     sampler.setWrapModeR(static_cast<TextureSampler::WrapMode>(mode));
-    return to_long(sampler);
+    return sampler.getSamplerParams().u;
 }
 
 extern "C" JNIEXPORT jint JNICALL
-Java_com_google_android_filament_TextureSampler_nGetCompareMode(JNIEnv *, jclass, jlong sampler) {
-    return static_cast<jint>(from_long(sampler).getCompareMode());
+Java_com_google_android_filament_TextureSampler_nGetCompareMode(JNIEnv *env, jclass type,
+        jint sampler_) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
+    return static_cast<jint>(sampler.getCompareMode());
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nSetCompareMode(JNIEnv *, jclass, jlong sampler_, jint mode) {
-    TextureSampler sampler{from_long(sampler_)};
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nSetCompareMode(JNIEnv *env, jclass type,
+        jint sampler_, jint mode) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
     sampler.setCompareMode(static_cast<TextureSampler::CompareMode>(mode),
             sampler.getCompareFunc());
-    return to_long(sampler);
+    return sampler.getSamplerParams().u;
 }
 
 extern "C" JNIEXPORT jint JNICALL
-Java_com_google_android_filament_TextureSampler_nGetCompareFunction(JNIEnv *, jclass, jlong sampler) {
-    return static_cast<jint>(from_long(sampler).getCompareFunc());
+Java_com_google_android_filament_TextureSampler_nGetCompareFunction(JNIEnv *env, jclass type,
+        jint sampler_) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
+    return static_cast<jint>(sampler.getCompareFunc());
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nSetCompareFunction(JNIEnv *, jclass, jlong sampler_, jint function) {
-    TextureSampler sampler{from_long(sampler_)};
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nSetCompareFunction(JNIEnv *env, jclass type,
+        jint sampler_, jint function) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
     sampler.setCompareMode(sampler.getCompareMode(),
             static_cast<TextureSampler::CompareFunc>(function));
-    return to_long(sampler);
+    return sampler.getSamplerParams().u;
 }
 
 extern "C" JNIEXPORT jfloat JNICALL
-Java_com_google_android_filament_TextureSampler_nGetAnisotropy(JNIEnv *, jclass, jlong sampler) {
-    return from_long(sampler).getAnisotropy();
+Java_com_google_android_filament_TextureSampler_nGetAnisotropy(JNIEnv *env, jclass type,
+        jint sampler_) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
+    return sampler.getAnisotropy();
 }
 
-extern "C" JNIEXPORT jlong JNICALL
-Java_com_google_android_filament_TextureSampler_nSetAnisotropy(JNIEnv *, jclass, jlong sampler_, jfloat anisotropy) {
-    TextureSampler sampler{from_long(sampler_)};
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_TextureSampler_nSetAnisotropy(JNIEnv *env, jclass type,
+        jint sampler_, jfloat anisotropy) {
+    TextureSampler &sampler = reinterpret_cast<TextureSampler &>(sampler_);
     sampler.setAnisotropy(anisotropy);
-    return to_long(sampler);
+    return sampler.getSamplerParams().u;
 }

android/filament-android/src/main/cpp/View.cpp

@@ -315,14 +315,12 @@ Java_com_google_android_filament_View_nSetBloomOptions(JNIEnv*, jclass,
 
 extern "C" JNIEXPORT void JNICALL
 Java_com_google_android_filament_View_nSetFogOptions(JNIEnv *, jclass , jlong nativeView,
-        jfloat distance, jfloat maximumOpacity, jfloat height, jfloat heightFalloff, jfloat cutOffDistance,
-        jfloat r, jfloat g, jfloat b, jfloat density, jfloat inScatteringStart,
-        jfloat inScatteringSize, jboolean fogColorFromIbl, jlong skyColorNativeObject, jboolean enabled) {
+        jfloat distance, jfloat maximumOpacity, jfloat height, jfloat heightFalloff, jfloat r,
+        jfloat g, jfloat b, jfloat density, jfloat inScatteringStart,
+        jfloat inScatteringSize, jboolean fogColorFromIbl, jboolean enabled) {
     View* view = (View*) nativeView;
-    Texture* skyColor = (Texture*) skyColorNativeObject;
     View::FogOptions options = {
              .distance = distance,
-             .cutOffDistance = cutOffDistance,
              .maximumOpacity = maximumOpacity,
              .height = height,
              .heightFalloff = heightFalloff,
@@ -331,7 +329,6 @@ Java_com_google_android_filament_View_nSetFogOptions(JNIEnv *, jclass , jlong na
              .inScatteringStart = inScatteringStart,
              .inScatteringSize = inScatteringSize,
              .fogColorFromIbl = (bool)fogColorFromIbl,
-             .skyColor = skyColor,
              .enabled = (bool)enabled
     };
     view->setFogOptions(options);
@@ -488,30 +485,3 @@ Java_com_google_android_filament_View_nSetGuardBandOptions(JNIEnv *, jclass,
     View* view = (View*) nativeView;
     view->setGuardBandOptions({ .enabled = (bool)enabled });
 }
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_google_android_filament_View_nSetMaterialGlobal(JNIEnv * , jclass, jlong nativeView,
-        jint index, jfloat x, jfloat y, jfloat z, jfloat w) {
-    View *view = (View *) nativeView;
-    view->setMaterialGlobal((uint32_t)index, { x, y, z, w });
-}
-
-extern "C"
-JNIEXPORT void JNICALL
-Java_com_google_android_filament_View_nGetMaterialGlobal(JNIEnv *env, jclass clazz,
-        jlong nativeView, jint index, jfloatArray out_) {
-    jfloat* out = env->GetFloatArrayElements(out_, nullptr);
-    View *view = (View *) nativeView;
-    auto result = view->getMaterialGlobal(index);
-    std::copy_n(result.v, 4, out);
-    env->ReleaseFloatArrayElements(out_, out, 0);
-}
-
-extern "C"
-JNIEXPORT int JNICALL
-Java_com_google_android_filament_View_nGetFogEntity(JNIEnv *env, jclass clazz,
-        jlong nativeView) {
-    View *view = (View *) nativeView;
-    return (jint)view->getFogEntity().getId();
-}

android/filament-android/src/main/java/com/google/android/filament/Camera.java

@@ -365,7 +365,7 @@ public class Camera {
      * By default, this is an identity matrix.
      * </p>
      *
-     * @param inScaling     diagonal of the scaling matrix to be applied after the projection matrix.
+     * @param scaling     diagonal of the scaling matrix to be applied after the projection matrix.
      *
      * @see Camera#setProjection
      * @see Camera#setLensProjection
@@ -409,7 +409,7 @@ public class Camera {
      *
      * <pre>
      *  engine.getTransformManager().setTransform(
-     *          engine.getTransformManager().getInstance(camera->getEntity()), modelMatrix);
+     *          engine.getTransformManager().getInstance(camera->getEntity()), viewMatrix);
      * </pre>
      *
      * @param modelMatrix The camera position and orientation provided as a <b>rigid transform</b> matrix.

android/filament-android/src/main/java/com/google/android/filament/ColorGrading.java

@@ -118,7 +118,6 @@ public class ColorGrading {
      *
      * @deprecated Use {@link ColorGrading.Builder#toneMapper(ToneMapper)}
      */
-    @Deprecated
     public enum ToneMapping {
         /** Linear tone mapping (i.e. no tone mapping). */
         LINEAR,
@@ -232,7 +231,6 @@ public class ColorGrading {
          *
          * @deprecated Use {@link #toneMapper(ToneMapper)}
          */
-        @Deprecated
         public Builder toneMapping(ToneMapping toneMapping) {
             nBuilderToneMapping(mNativeBuilder, toneMapping.ordinal());
             return this;

android/filament-android/src/main/java/com/google/android/filament/Engine.java

@@ -449,141 +449,6 @@ public class Engine {
         swapChain.clearNativeObject();
     }
 
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidRenderer(@NonNull Renderer object) {
-        return nIsValidRenderer(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidView(@NonNull View object) {
-        return nIsValidView(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidScene(@NonNull Scene object) {
-        return nIsValidScene(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidFence(@NonNull Fence object) {
-        return nIsValidFence(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidStream(@NonNull Stream object) {
-        return nIsValidStream(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidIndexBuffer(@NonNull IndexBuffer object) {
-        return nIsValidIndexBuffer(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidVertexBuffer(@NonNull VertexBuffer object) {
-        return nIsValidVertexBuffer(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidSkinningBuffer(@NonNull SkinningBuffer object) {
-        return nIsValidSkinningBuffer(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidIndirectLight(@NonNull IndirectLight object) {
-        return nIsValidIndirectLight(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidMaterial(@NonNull Material object) {
-        return nIsValidMaterial(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidSkybox(@NonNull Skybox object) {
-        return nIsValidSkybox(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidColorGrading(@NonNull ColorGrading object) {
-        return nIsValidColorGrading(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidTexture(@NonNull Texture object) {
-        return nIsValidTexture(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidRenderTarget(@NonNull RenderTarget object) {
-        return nIsValidRenderTarget(getNativeObject(), object.getNativeObject());
-    }
-
-    /**
-     * Returns whether the object is valid.
-     * @param object Object to check for validity
-     * @return returns true if the specified object is valid.
-     */
-    public boolean isValidSwapChain(@NonNull SwapChain object) {
-        return nIsValidSwapChain(getNativeObject(), object.getNativeObject());
-    }
-
     // View
 
     /**
@@ -920,17 +785,17 @@ public class Engine {
     private static native long nCreateSwapChain(long nativeEngine, Object nativeWindow, long flags);
     private static native long nCreateSwapChainHeadless(long nativeEngine, int width, int height, long flags);
     private static native long nCreateSwapChainFromRawPointer(long nativeEngine, long pointer, long flags);
+    private static native boolean nDestroySwapChain(long nativeEngine, long nativeSwapChain);
     private static native long nCreateView(long nativeEngine);
+    private static native boolean nDestroyView(long nativeEngine, long nativeView);
     private static native long nCreateRenderer(long nativeEngine);
+    private static native boolean nDestroyRenderer(long nativeEngine, long nativeRenderer);
     private static native long nCreateCamera(long nativeEngine, int entity);
     private static native long nGetCameraComponent(long nativeEngine, int entity);
     private static native void nDestroyCameraComponent(long nativeEngine, int entity);
     private static native long nCreateScene(long nativeEngine);
-    private static native long nCreateFence(long nativeEngine);
-
-    private static native boolean nDestroyRenderer(long nativeEngine, long nativeRenderer);
-    private static native boolean nDestroyView(long nativeEngine, long nativeView);
     private static native boolean nDestroyScene(long nativeEngine, long nativeScene);
+    private static native long nCreateFence(long nativeEngine);
     private static native boolean nDestroyFence(long nativeEngine, long nativeFence);
     private static native boolean nDestroyStream(long nativeEngine, long nativeStream);
     private static native boolean nDestroyIndexBuffer(long nativeEngine, long nativeIndexBuffer);
@@ -943,22 +808,6 @@ public class Engine {
     private static native boolean nDestroyColorGrading(long nativeEngine, long nativeColorGrading);
     private static native boolean nDestroyTexture(long nativeEngine, long nativeTexture);
     private static native boolean nDestroyRenderTarget(long nativeEngine, long nativeTarget);
-    private static native boolean nDestroySwapChain(long nativeEngine, long nativeSwapChain);
-    private static native boolean nIsValidRenderer(long nativeEngine, long nativeRenderer);
-    private static native boolean nIsValidView(long nativeEngine, long nativeView);
-    private static native boolean nIsValidScene(long nativeEngine, long nativeScene);
-    private static native boolean nIsValidFence(long nativeEngine, long nativeFence);
-    private static native boolean nIsValidStream(long nativeEngine, long nativeStream);
-    private static native boolean nIsValidIndexBuffer(long nativeEngine, long nativeIndexBuffer);
-    private static native boolean nIsValidVertexBuffer(long nativeEngine, long nativeVertexBuffer);
-    private static native boolean nIsValidSkinningBuffer(long nativeEngine, long nativeSkinningBuffer);
-    private static native boolean nIsValidIndirectLight(long nativeEngine, long nativeIndirectLight);
-    private static native boolean nIsValidMaterial(long nativeEngine, long nativeMaterial);
-    private static native boolean nIsValidSkybox(long nativeEngine, long nativeSkybox);
-    private static native boolean nIsValidColorGrading(long nativeEngine, long nativeColorGrading);
-    private static native boolean nIsValidTexture(long nativeEngine, long nativeTexture);
-    private static native boolean nIsValidRenderTarget(long nativeEngine, long nativeTarget);
-    private static native boolean nIsValidSwapChain(long nativeEngine, long nativeSwapChain);
     private static native void nDestroyEntity(long nativeEngine, int entity);
     private static native void nFlushAndWait(long nativeEngine);
     private static native long nGetTransformManager(long nativeEngine);

android/filament-android/src/main/java/com/google/android/filament/LightManager.java

@@ -258,7 +258,6 @@ public class LightManager {
          * shadows that are too far and wouldn't contribute to the scene much, improving
          * performance and quality. This value is always positive.
          * Use 0.0f to use the camera far distance.
-         * This only affect directional lights.
          */
         public float shadowFar = 0.0f;
 
@@ -350,6 +349,20 @@ public class LightManager {
          * @see View#setShadowType
          */
 
+        /**
+         * The number of MSAA samples to use when rendering VSM shadow maps.
+         * Must be a power-of-two and greater than or equal to 1. A value of 1 effectively turns
+         * off MSAA.
+         * Higher values may not be available depending on the underlying hardware.
+         *
+         * <p>
+         * <strong>Warning: This API is still experimental and subject to change.</strong>
+         * </p>
+         */
+        @IntRange(from = 1)
+        public int vsmMsaaSamples = 1;
+
+
         /**
          * When elvsm is set to true, "Exponential Layered VSM without Layers" are used. It is
          * an improvement to the default EVSM which suffers important light leaks. Enabling
@@ -369,17 +382,6 @@ public class LightManager {
          * enabled. (2cm by default).
          */
         public float shadowBulbRadius = 0.02f;
-
-        /**
-         * Transforms the shadow direction. Must be a unit quaternion.
-         * The default is identity.
-         * Ignored if the light type isn't directional. For artistic use. Use with caution.
-         * The quaternion is stored as the imaginary part in the first 3 elements and the real
-         * part in the last element of the transform array.
-         */
-        @NonNull
-        @Size(min = 4, max = 4)
-        public float[] transform = { 0.0f, 0.0f, 0.0f, 1.0f };
     }
 
     public static class ShadowCascades {
@@ -517,8 +519,8 @@ public class LightManager {
                     options.shadowFarHint, options.stable, options.lispsm,
                     options.polygonOffsetConstant, options.polygonOffsetSlope,
                     options.screenSpaceContactShadows,
-                    options.stepCount, options.maxShadowDistance,
-                    options.elvsm, options.blurWidth, options.shadowBulbRadius, options.transform);
+                    options.stepCount, options.maxShadowDistance, options.vsmMsaaSamples,
+                    options.elvsm, options.blurWidth, options.shadowBulbRadius);
             return this;
         }
 
@@ -1016,6 +1018,8 @@ public class LightManager {
      *                      lightbulbs.
      *
      * @param efficiency    Efficiency in percent. This depends on the type of lightbulb used.
+     *
+     * @return This Builder, for chaining calls.
      */
     public void setIntensity(@EntityInstance int i, float watts, float efficiency) {
         nSetIntensity(mNativeObject, i , watts, efficiency);
@@ -1181,7 +1185,7 @@ public class LightManager {
              boolean stable, boolean lispsm,
              float polygonOffsetConstant, float polygonOffsetSlope,
              boolean screenSpaceContactShadows, int stepCount, float maxShadowDistance,
-             boolean elvsm, float blurWidth, float shadowBulbRadius, float[] transform);
+             int vsmMsaaSamples, boolean elvsm, float blurWidth, float shadowBulbRadius);
     private static native void nBuilderCastLight(long nativeBuilder, boolean enabled);
     private static native void nBuilderPosition(long nativeBuilder, float x, float y, float z);
     private static native void nBuilderDirection(long nativeBuilder, float x, float y, float z);

android/filament-android/src/main/java/com/google/android/filament/Material.java

@@ -503,17 +503,6 @@ public class Material {
         return nIsDoubleSided(getNativeObject());
     }
 
-    /**
-     * Indicates whether instances of this material will use alpha to coverage.
-     *
-     * @see
-     * <a href="https://google.github.io/filament/Materials.html#materialdefinitions/materialblock/rasterization:alphatocoverage">
-     * Rasterization: alphaToCoverage</a>
-     */
-    public boolean isAlphaToCoverageEnabled() {
-        return nIsAlphaToCoverageEnabled(getNativeObject());
-    }
-
     /**
      * Returns the alpha mask threshold used when the blending mode is set to masked.
      *
@@ -926,7 +915,6 @@ public class Material {
     private static native boolean nIsDepthWriteEnabled(long nativeMaterial);
     private static native boolean nIsDepthCullingEnabled(long nativeMaterial);
     private static native boolean nIsDoubleSided(long nativeMaterial);
-    private static native boolean nIsAlphaToCoverageEnabled(long nativeMaterial);
     private static native float nGetMaskThreshold(long nativeMaterial);
     private static native float nGetSpecularAntiAliasingVariance(long nativeMaterial);
     private static native float nGetSpecularAntiAliasingThreshold(long nativeMaterial);

android/filament-android/src/main/java/com/google/android/filament/MaterialInstance.java

@@ -625,15 +625,6 @@ public class MaterialInstance {
         nSetDepthCulling(getNativeObject(), enable);
     }
 
-    /**
-     * Sets the depth comparison function (default is {@link TextureSampler.CompareFunction#GE}).
-     *
-     * @param func the depth comparison function
-     */
-    public void setDepthFunc(TextureSampler.CompareFunction func) {
-        nSetDepthFunc(getNativeObject(), func.ordinal());
-    }
-
     /**
      * Returns whether depth culling is enabled.
      */
@@ -641,13 +632,6 @@ public class MaterialInstance {
         return nIsDepthCullingEnabled(getNativeObject());
     }
 
-    /**
-     * Returns the depth comparison function.
-     */
-    public TextureSampler.CompareFunction getDepthFunc() {
-        return TextureSampler.EnumCache.sCompareFunctionValues[nGetDepthFunc(getNativeObject())];
-    }
-
     /**
      * Sets the stencil comparison function (default is {@link TextureSampler.CompareFunction#ALWAYS}).
      *
@@ -900,7 +884,7 @@ public class MaterialInstance {
             @IntRange(from = 0) int offset, @IntRange(from = 1) int count);
 
     private static native void nSetParameterTexture(long nativeMaterialInstance,
-            @NonNull String name, long nativeTexture, long sampler);
+            @NonNull String name, long nativeTexture, int sampler);
 
     private static native void nSetScissor(long nativeMaterialInstance,
             @IntRange(from = 0) int left, @IntRange(from = 0) int bottom,
@@ -924,7 +908,6 @@ public class MaterialInstance {
     private static native void nSetDepthWrite(long nativeMaterialInstance, boolean enable);
     private static native void nSetStencilWrite(long nativeMaterialInstance, boolean enable);
     private static native void nSetDepthCulling(long nativeMaterialInstance, boolean enable);
-    private static native void nSetDepthFunc(long nativeMaterialInstance, long function);
 
     private static native void nSetStencilCompareFunction(long nativeMaterialInstance,
             long function, long face);
@@ -956,5 +939,4 @@ public class MaterialInstance {
     private static native boolean nIsDepthWriteEnabled(long nativeMaterialInstance);
     private static native boolean nIsStencilWriteEnabled(long nativeMaterialInstance);
     private static native boolean nIsDepthCullingEnabled(long nativeMaterialInstance);
-    private static native int nGetDepthFunc(long nativeMaterialInstance);
 }

android/filament-android/src/main/java/com/google/android/filament/RenderTarget.java

@@ -81,6 +81,8 @@ public class RenderTarget {
         /**
          * Sets a texture to a given attachment point.
          *
+         * <p>All RenderTargets must have a non-null <code>COLOR</code> attachment.</p>
+         *
          * @param attachment The attachment point of the texture.
          * @param texture The associated texture object.
          * @return A reference to this Builder for chaining calls.

android/filament-android/src/main/java/com/google/android/filament/RenderableManager.java

@@ -257,79 +257,23 @@ public class RenderableManager {
          * Provides coarse-grained control over draw order.
          *
          * <p>In general Filament reserves the right to re-order renderables to allow for efficient
-         * rendering. However clients can control ordering at a coarse level using \em priority.
-         * The priority is applied separately for opaque and translucent objects, that is, opaque
-         * objects are always drawn before translucent objects regardless of the priority.</p>
+         * rendering. However clients can control ordering at a coarse level using <em>priority</em>.</p>
          *
          * <p>For example, this could be used to draw a semitransparent HUD, if a client wishes to
          * avoid using a separate View for the HUD. Note that priority is completely orthogonal to
          * {@link Builder#layerMask}, which merely controls visibility.</p>
-
-         * <p>The Skybox always using the lowest priority, so it's drawn last, which may improve
-         * performance.</p>
          *
          * <p>The priority is clamped to the range [0..7], defaults to 4; 7 is lowest priority
          * (rendered last).</p>
          *
          * @see Builder#blendOrder
          */
-
-        /**
-         * Provides coarse-grained control over draw order.
-         *
-         * <p>In general Filament reserves the right to re-order renderables to allow for efficient
-         * rendering. However clients can control ordering at a coarse level using priority.
-         * The priority is applied separately for opaque and translucent objects, that is, opaque
-         * objects are always drawn before translucent objects regardless of the priority.</p>
-         *
-         * <p>For example, this could be used to draw a semitransparent HUD, if a client wishes to
-         * avoid using a separate View for the HUD. Note that priority is completely orthogonal to
-         * {@link Builder#layerMask}, which merely controls visibility.</p>
-
-         * <p>The Skybox always using the lowest priority, so it's drawn last, which may improve
-         * performance.</p>
-         *
-         * @param priority clamped to the range [0..7], defaults to 4; 7 is lowest priority
-         *                 (rendered last).
-         *
-         * @return Builder reference for chaining calls.
-         *
-         * @see Builder#channel
-         * @see Builder#blendOrder
-         * @see #setPriority
-         * @see #setBlendOrderAt
-         */
         @NonNull
         public Builder priority(@IntRange(from = 0, to = 7) int priority) {
             nBuilderPriority(mNativeBuilder, priority);
             return this;
         }
 
-        /**
-         * Set the channel this renderable is associated to. There can be 4 channels.
-         *
-         * <p>All renderables in a given channel are rendered together, regardless of anything else.
-         * They are sorted as usual within a channel.</p>
-         * <p>Channels work similarly to priorities, except that they enforce the strongest
-         * ordering.</p>
-         *
-         * <p>Channels 0 and 1 may not have render primitives using a material with `refractionType`
-         * set to `screenspace`.</p>
-         *
-         * @param channel clamped to the range [0..3], defaults to 2.
-         *
-         * @return Builder reference for chaining calls.
-         *
-         * @see Builder::blendOrder()
-         * @see Builder::priority()
-         * @see RenderableManager::setBlendOrderAt()
-         */
-        @NonNull
-        public Builder channel(@IntRange(from = 0, to = 3) int channel) {
-            nBuilderChannel(mNativeBuilder, channel);
-            return this;
-        }
-
         /**
          * Controls frustum culling, true by default.
          *
@@ -356,16 +300,16 @@ public class RenderableManager {
 
         /**
          * Specifies the number of draw instance of this renderable. The default is 1 instance and
-         * the maximum number of instances allowed is 32767. 0 is invalid.
+         * the maximum number of instances allowed is 65535. 0 is invalid.
          * All instances are culled using the same bounding box, so care must be taken to make
          * sure all instances render inside the specified bounding box.
          * The material can use getInstanceIndex() in the vertex shader to get the instance index and
          * possibly adjust the position or transform.
          *
-         * @param instanceCount the number of instances silently clamped between 1 and 32767.
+         * @param instanceCount the number of instances silently clamped between 1 and 65535.
          */
         @NonNull
-        public Builder instances(@IntRange(from = 1, to = 32767) int instanceCount) {
+        public Builder instances(@IntRange(from = 1, to = 65535) int instanceCount) {
             nBuilderInstances(mNativeBuilder, instanceCount);
             return this;
         }
@@ -417,19 +361,7 @@ public class RenderableManager {
          */
         @NonNull
         public Builder enableSkinningBuffers(boolean enabled) {
-            nBuilderEnableSkinningBuffers(mNativeBuilder, enabled);
-            return this;
-        }
-
-        /**
-         * Controls if this renderable is affected by the large-scale fog.
-         * @param enabled If true, enables large-scale fog on this object. Disables it otherwise.
-         *                True by default.
-         * @return this <code>Builder</code> object for chaining calls
-         */
-         @NonNull
-        public Builder fog(boolean enabled) {
-            nBuilderFog(mNativeBuilder, enabled);
+            nEnableSkinningBuffers(mNativeBuilder, enabled);
             return this;
         }
 
@@ -723,15 +655,6 @@ public class RenderableManager {
         nSetPriority(mNativeObject, i, priority);
     }
 
-    /**
-     * Changes the channel of a renderable
-     *
-     * @see Builder#channel
-     */
-    public void setChannel(@EntityInstance int i, @IntRange(from = 0, to = 3) int channel) {
-        nSetChannel(mNativeObject, i, channel);
-    }
-
     /**
      * Changes whether or not frustum culling is on.
      *
@@ -741,23 +664,6 @@ public class RenderableManager {
         nSetCulling(mNativeObject, i, enabled);
     }
 
-    /**
-     * Changes whether or not the large-scale fog is applied to this renderable
-     * @see Builder#fog
-     */
-    public void setFogEnabled(@EntityInstance int i, boolean enabled) {
-        nSetFogEnabled(mNativeObject, i, enabled);
-    }
-
-    /**
-     * Returns whether large-scale fog is enabled for this renderable.
-     * @return True if fog is enabled for this renderable.
-     * @see Builder#fog
-     */
-    public boolean getFogEnabled(@EntityInstance int i) {
-        return nGetFogEnabled(mNativeObject, i);
-    }
-
     /**
      * Enables or disables a light channel.
      * Light channel 0 is enabled by default.
@@ -970,7 +876,6 @@ public class RenderableManager {
     private static native void nBuilderBoundingBox(long nativeBuilder, float cx, float cy, float cz, float ex, float ey, float ez);
     private static native void nBuilderLayerMask(long nativeBuilder, int select, int value);
     private static native void nBuilderPriority(long nativeBuilder, int priority);
-    private static native void nBuilderChannel(long nativeBuilder, int channel);
     private static native void nBuilderCulling(long nativeBuilder, boolean enabled);
     private static native void nBuilderCastShadows(long nativeBuilder, boolean enabled);
     private static native void nBuilderReceiveShadows(long nativeBuilder, boolean enabled);
@@ -980,8 +885,7 @@ public class RenderableManager {
     private static native void nBuilderSkinningBuffer(long nativeBuilder, long nativeSkinningBuffer, int boneCount, int offset);
     private static native void nBuilderMorphing(long nativeBuilder, int targetCount);
     private static native void nBuilderSetMorphTargetBufferAt(long nativeBuilder, int level, int primitiveIndex, long nativeMorphTargetBuffer, int offset, int count);
-    private static native void nBuilderEnableSkinningBuffers(long nativeBuilder, boolean enabled);
-    private static native void nBuilderFog(long nativeBuilder, boolean enabled);
+    private static native void nEnableSkinningBuffers(long nativeBuilder, boolean enabled);
     private static native void nBuilderLightChannel(long nativeRenderableManager, int channel, boolean enable);
     private static native void nBuilderInstances(long nativeRenderableManager, int instances);
 
@@ -994,10 +898,7 @@ public class RenderableManager {
     private static native void nSetAxisAlignedBoundingBox(long nativeRenderableManager, int i, float cx, float cy, float cz, float ex, float ey, float ez);
     private static native void nSetLayerMask(long nativeRenderableManager, int i, int select, int value);
     private static native void nSetPriority(long nativeRenderableManager, int i, int priority);
-    private static native void nSetChannel(long nativeRenderableManager, int i, int channel);
     private static native void nSetCulling(long nativeRenderableManager, int i, boolean enabled);
-    private static native void nSetFogEnabled(long nativeRenderableManager, int i, boolean enabled);
-    private static native boolean nGetFogEnabled(long nativeRenderableManager, int i);
     private static native void nSetLightChannel(long nativeRenderableManager, int i, int channel, boolean enable);
     private static native boolean nGetLightChannel(long nativeRenderableManager, int i, int channel);
     private static native void nSetCastShadows(long nativeRenderableManager, int i, boolean enabled);

android/filament-android/src/main/java/com/google/android/filament/Renderer.java

@@ -124,24 +124,7 @@ public class Renderer {
      */
     public static class ClearOptions {
         /**
-         * Color (sRGB linear) to use to clear the RenderTarget (typically the SwapChain).
-         *
-         * The RenderTarget is cleared using this color, which won't be tone-mapped since
-         * tone-mapping is part of View rendering (this is not).
-         *
-         * When a View is rendered, there are 3 scenarios to consider:
-         * - Pixels rendered by the View replace the clear color (or blend with it in
-         *   `BlendMode.TRANSLUCENT` mode).
-         *
-         * - With blending mode set to `BlendMode.TRANSLUCENT`, Pixels untouched by the View
-         *   are considered fulling transparent and let the clear color show through.
-         *
-         * - With blending mode set to `BlendMode.OPAQUE`, Pixels untouched by the View
-         *   are set to the clear color. However, because it is now used in the context of a View,
-         *   it will go through the post-processing stage, which includes tone-mapping.
-         *
-         * For consistency, it is recommended to always use a Skybox to clear an opaque View's
-         * background, or to use black or fully-transparent (i.e. {0,0,0,0}) as the clear color.
+         * Color to use to clear the SwapChain
          */
         @NonNull
         public float[] clearColor = { 0.0f, 0.0f, 0.0f, 0.0f };

android/filament-android/src/main/java/com/google/android/filament/SwapChain.java

@@ -91,34 +91,11 @@ public class SwapChain {
      */
     public static final long CONFIG_ENABLE_XCB = 0x4;
 
-    /**
-     * Indicates that the SwapChain must automatically perform linear to sRGB encoding.
-     *
-     * This flag is ignored if isSRGBSwapChainSupported() is false.
-     *
-     * When using this flag, post-processing should be disabled.
-     *
-     * @see SwapChain#isSRGBSwapChainSupported
-     * @see View#setPostProcessingEnabled
-     */
-    public static final long CONFIG_SRGB_COLORSPACE = 0x10;
-
     SwapChain(long nativeSwapChain, Object surface) {
         mNativeObject = nativeSwapChain;
         mSurface = surface;
     }
 
-    /**
-     * Return whether createSwapChain supports the SWAP_CHAIN_CONFIG_SRGB_COLORSPACE flag.
-     * The default implementation returns false.
-     *
-     * @param engine A reference to the filament Engine
-     * @return true if SWAP_CHAIN_CONFIG_SRGB_COLORSPACE is supported, false otherwise.
-     */
-    public static boolean isSRGBSwapChainSupported(@NonNull Engine engine) {
-        return nIsSRGBSwapChainSupported(engine.getNativeObject());
-    }
-
     /**
      * @return the native <code>Object</code> this <code>SwapChain</code> was created from or null
      *         for a headless SwapChain.
@@ -137,6 +114,10 @@ public class SwapChain {
      * </p>
      *
      * <p>
+     * The FrameCompletedCallback is guaranteed to be called on the main Filament thread.
+     * </p>
+     *
+     * <p>
      * Warning: Only Filament's Metal backend supports frame callbacks. Other backends ignore the
      * callback (which will never be called) and proceed normally.
      * </p>
@@ -160,5 +141,4 @@ public class SwapChain {
     }
 
     private static native void nSetFrameCompletedCallback(long nativeSwapChain, Object handler, Runnable callback);
-    private static native boolean nIsSRGBSwapChainSupported(long nativeEngine);
 }

android/filament-android/src/main/java/com/google/android/filament/Texture.java

@@ -250,19 +250,7 @@ public class Texture {
         SRGB8_ALPHA8_ASTC_10x8,
         SRGB8_ALPHA8_ASTC_10x10,
         SRGB8_ALPHA8_ASTC_12x10,
-        SRGB8_ALPHA8_ASTC_12x12,
-
-        // RGTC formats available with a GLES extension
-        RED_RGTC1,              // BC4 unsigned
-        SIGNED_RED_RGTC1,       // BC4 signed
-        RED_GREEN_RGTC2,        // BC5 unsigned
-        SIGNED_RED_GREEN_RGTC2, // BC5 signed
-
-        // BPTC formats available with a GLES extension
-        RGB_BPTC_SIGNED_FLOAT,  // BC6H signed
-        RGB_BPTC_UNSIGNED_FLOAT,// BC6H unsigned
-        RGBA_BPTC_UNORM,        // BC7
-        SRGB_ALPHA_BPTC_UNORM   // BC7 sRGB
+        SRGB8_ALPHA8_ASTC_12x12
     }
 
     /**
@@ -308,19 +296,7 @@ public class Texture {
         SRGB8_ALPHA8_ASTC_10x8,
         SRGB8_ALPHA8_ASTC_10x10,
         SRGB8_ALPHA8_ASTC_12x10,
-        SRGB8_ALPHA8_ASTC_12x12,
-
-        // RGTC formats available with a GLES extension
-        RED_RGTC1,              // BC4 unsigned
-        SIGNED_RED_RGTC1,       // BC4 signed
-        RED_GREEN_RGTC2,        // BC5 unsigned
-        SIGNED_RED_GREEN_RGTC2, // BC5 signed
-
-        // BPTC formats available with a GLES extension
-        RGB_BPTC_SIGNED_FLOAT,  // BC6H signed
-        RGB_BPTC_UNSIGNED_FLOAT,// BC6H unsigned
-        RGBA_BPTC_UNORM,        // BC7
-        SRGB_ALPHA_BPTC_UNORM   // BC7 sRGB
+        SRGB8_ALPHA8_ASTC_12x12
     }
 
     /**

android/filament-android/src/main/java/com/google/android/filament/TextureSampler.java

@@ -126,7 +126,7 @@ public class TextureSampler {
         NEVER
     }
 
-    long mSampler = 0; // bit field used by native
+    int mSampler = 0; // bit field used by native
 
     /**
      * Initializes the <code>TextureSampler</code> with default values.
@@ -276,7 +276,7 @@ public class TextureSampler {
     }
 
     /**
-     * Sets the wrapping mode in the r (depth) direction.
+     * Sets the wrapping mode in the t (depth) direction.
      * @param mode wrapping mode
      */
     public void setWrapModeR(WrapMode mode) {
@@ -342,26 +342,26 @@ public class TextureSampler {
         }
     }
 
-    private static native long nCreateSampler(int min, int max, int s, int t, int r);
-    private static native long nCreateCompareSampler(int mode, int function);
+    private static native int nCreateSampler(int min, int max, int s, int t, int r);
+    private static native int nCreateCompareSampler(int mode, int function);
 
-    private static native int nGetMinFilter(long sampler);
-    private static native long nSetMinFilter(long sampler, int filter);
-    private static native int nGetMagFilter(long sampler);
-    private static native long nSetMagFilter(long sampler, int filter);
+    private static native int nGetMinFilter(int sampler);
+    private static native int nSetMinFilter(int sampler, int filter);
+    private static native int nGetMagFilter(int sampler);
+    private static native int nSetMagFilter(int sampler, int filter);
 
-    private static native int nGetWrapModeS(long sampler);
-    private static native long nSetWrapModeS(long sampler, int mode);
-    private static native int nGetWrapModeT(long sampler);
-    private static native long nSetWrapModeT(long sampler, int mode);
-    private static native int nGetWrapModeR(long sampler);
-    private static native long nSetWrapModeR(long sampler, int mode);
+    private static native int nGetWrapModeS(int sampler);
+    private static native int nSetWrapModeS(int sampler, int mode);
+    private static native int nGetWrapModeT(int sampler);
+    private static native int nSetWrapModeT(int sampler, int mode);
+    private static native int nGetWrapModeR(int sampler);
+    private static native int nSetWrapModeR(int sampler, int mode);
 
-    private static native int nGetCompareMode(long sampler);
-    private static native long nSetCompareMode(long sampler, int mode);
-    private static native int nGetCompareFunction(long sampler);
-    private static native long nSetCompareFunction(long sampler, int function);
+    private static native int nGetCompareMode(int sampler);
+    private static native int nSetCompareMode(int sampler, int mode);
+    private static native int nGetCompareFunction(int sampler);
+    private static native int nSetCompareFunction(int sampler, int function);
 
-    private static native float nGetAnisotropy(long sampler);
-    private static native long nSetAnisotropy(long sampler, float anisotropy);
+    private static native float nGetAnisotropy(int sampler);
+    private static native int nSetAnisotropy(int sampler, float anisotropy);
 }

android/filament-android/src/main/java/com/google/android/filament/View.java

@@ -27,8 +27,6 @@ import static com.google.android.filament.Asserts.assertFloat3In;
 import static com.google.android.filament.Asserts.assertFloat4In;
 import static com.google.android.filament.Colors.LinearColor;
 
-import com.google.android.filament.proguard.UsedByNative;
-
 /**
  * Encompasses all the state needed for rendering a {@link Scene}.
  *
@@ -964,11 +962,9 @@ public class View {
         assertFloat3In(options.color);
         mFogOptions = options;
         nSetFogOptions(getNativeObject(), options.distance, options.maximumOpacity, options.height,
-                options.heightFalloff, options.cutOffDistance,
-                options.color[0], options.color[1], options.color[2],
+                options.heightFalloff, options.color[0], options.color[1], options.color[2],
                 options.density, options.inScatteringStart, options.inScatteringSize,
                 options.fogColorFromIbl,
-                options.skyColor == null ? 0 : options.skyColor.getNativeObject(),
                 options.enabled);
     }
 
@@ -1098,29 +1094,10 @@ public class View {
         nPick(getNativeObject(), x, y, handler, internalCallback);
     }
 
-    @UsedByNative("View.cpp")
     private static class InternalOnPickCallback implements Runnable {
-        private final OnPickCallback mUserCallback;
-        private final PickingQueryResult mPickingQueryResult = new PickingQueryResult();
-
-        @UsedByNative("View.cpp")
-        @Entity
-        int mRenderable;
-
-        @UsedByNative("View.cpp")
-        float mDepth;
-
-        @UsedByNative("View.cpp")
-        float mFragCoordsX;
-        @UsedByNative("View.cpp")
-        float mFragCoordsY;
-        @UsedByNative("View.cpp")
-        float mFragCoordsZ;
-
         public InternalOnPickCallback(OnPickCallback mUserCallback) {
             this.mUserCallback = mUserCallback;
         }
-
         @Override
         public void run() {
             mPickingQueryResult.renderable = mRenderable;
@@ -1130,51 +1107,13 @@ public class View {
             mPickingQueryResult.fragCoords[2] = mFragCoordsZ;
             mUserCallback.onPick(mPickingQueryResult);
         }
-    }
-
-    /**
-     * Set the value of material global variables. There are up-to four such variable each of
-     * type float4. These variables can be read in a user Material with
-     * `getMaterialGlobal{0|1|2|3}()`. All variable start with a default value of { 0, 0, 0, 1 }
-     *
-     * @param index index of the variable to set between 0 and 3.
-     * @param value new value for the variable.
-     * @see #getMaterialGlobal
-     */
-    public void setMaterialGlobal(int index, @NonNull @Size(min = 4) float[] value) {
-        Asserts.assertFloat4In(value);
-        nSetMaterialGlobal(getNativeObject(), index, value[0], value[1], value[2], value[3]);
-    }
-
-    /**
-     * Get the value of the material global variables.
-     * All variable start with a default value of { 0, 0, 0, 1 }
-     *
-     * @param index index of the variable to set between 0 and 3.
-     * @param out A 4-float array where the value will be stored, or null in which case the array is
-     *            allocated.
-     * @return A 4-float array containing the current value of the variable.
-     * @see #setMaterialGlobal
-     */
-    @NonNull @Size(min = 4)
-    public float[] getMaterialGlobal(int index, @Nullable @Size(min = 4) float[] out) {
-        out = Asserts.assertFloat4(out);
-        nGetMaterialGlobal(getNativeObject(), index, out);
-        return out;
-    }
-
-    /**
-     * Get an Entity representing the large scale fog object.
-     * This entity is always inherited by the View's Scene.
-     *
-     * It is for example possible to create a TransformManager component with this
-     * Entity and apply a transformation globally on the fog.
-     *
-     * @return an Entity representing the large scale fog object.
-     */
-    @Entity
-    public int getFogEntity() {
-        return nGetFogEntity(getNativeObject());
+        private final OnPickCallback mUserCallback;
+        private final PickingQueryResult mPickingQueryResult = new PickingQueryResult();
+        @Entity int mRenderable;
+        float mDepth;
+        float mFragCoordsX;
+        float mFragCoordsY;
+        float mFragCoordsZ;
     }
 
     public long getNativeObject() {
@@ -1218,7 +1157,7 @@ public class View {
     private static native void nSetSSCTOptions(long nativeView, float ssctLightConeRad, float ssctStartTraceDistance, float ssctContactDistanceMax, float ssctIntensity, float v, float v1, float v2, float ssctDepthBias, float ssctDepthSlopeBias, int ssctSampleCount, int ssctRayCount, boolean ssctEnabled);
     private static native void nSetBloomOptions(long nativeView, long dirtNativeObject, float dirtStrength, float strength, int resolution, float anamorphism, int levels, int blendMode, boolean threshold, boolean enabled, float highlight,
             boolean lensFlare, boolean starburst, float chromaticAberration, int ghostCount, float ghostSpacing, float ghostThreshold, float haloThickness, float haloRadius, float haloThreshold);
-    private static native void nSetFogOptions(long nativeView, float distance, float maximumOpacity, float height, float heightFalloff, float cutOffDistance, float v, float v1, float v2, float density, float inScatteringStart, float inScatteringSize, boolean fogColorFromIbl, long skyColorNativeObject, boolean enabled);
+    private static native void nSetFogOptions(long nativeView, float distance, float maximumOpacity, float height, float heightFalloff, float v, float v1, float v2, float density, float inScatteringStart, float inScatteringSize, boolean fogColorFromIbl, boolean enabled);
     private static native void nSetBlendMode(long nativeView, int blendMode);
     private static native void nSetDepthOfFieldOptions(long nativeView, float cocScale, float maxApertureDiameter, boolean enabled, int filter,
             boolean nativeResolution, int foregroundRingCount, int backgroundRingCount, int fastGatherRingCount, int maxForegroundCOC, int maxBackgroundCOC);
@@ -1233,10 +1172,6 @@ public class View {
     private static native void nPick(long nativeView, int x, int y, Object handler, InternalOnPickCallback internalCallback);
     private static native void nSetStencilBufferEnabled(long nativeView, boolean enabled);
     private static native boolean nIsStencilBufferEnabled(long nativeView);
-    private static native void nSetMaterialGlobal(long nativeView, int index, float x, float y, float z, float w);
-    private static native void nGetMaterialGlobal(long nativeView, int index, float[] out);
-    private static native int nGetFogEntity(long nativeView);
-
 
     /**
      * List of available ambient occlusion techniques.
@@ -1392,13 +1327,13 @@ public class View {
         /**
          * resolution of vertical axis (2^levels to 2048)
          */
-        public int resolution = 384;
+        public int resolution = 360;
         /**
          * bloom x/y aspect-ratio (1/32 to 32)
          */
         public float anamorphism = 1.0f;
         /**
-         * number of blur levels (1 to 11)
+         * number of blur levels (3 to 11)
          */
         public int levels = 6;
         /**
@@ -1418,17 +1353,6 @@ public class View {
          * limit highlights to this value before bloom [10, +inf]
          */
         public float highlight = 1000.0f;
-        /**
-         * Bloom quality level.
-         * LOW (default): use a more optimized down-sampling filter, however there can be artifacts
-         *      with dynamic resolution, this can be alleviated by using the homogenous mode.
-         * MEDIUM: Good balance between quality and performance.
-         * HIGH: In this mode the bloom resolution is automatically increased to avoid artifacts.
-         *      This mode can be significantly slower on mobile, especially at high resolution.
-         *      This mode greatly improves the anamorphic bloom.
-         */
-        @NonNull
-        public QualityLevel quality = QualityLevel.LOW;
         /**
          * enable screen-space lens flare
          */
@@ -1468,109 +1392,48 @@ public class View {
     }
 
     /**
-     * Options to control large-scale fog in the scene
+     * Options to control fog in the scene
      */
     public static class FogOptions {
         /**
-         * Distance in world units [m] from the camera to where the fog starts ( >= 0.0 )
+         * distance in world units from the camera where the fog starts ( >= 0.0 )
          */
         public float distance = 0.0f;
-        /**
-         * Distance in world units [m] after which the fog calculation is disabled.
-         * This can be used to exclude the skybox, which is desirable if it already contains clouds or
-         * fog. The default value is +infinity which applies the fog to everything.
-         *
-         * Note: The SkyBox is typically at a distance of 1e19 in world space (depending on the near
-         * plane distance and projection used though).
-         */
-        public float cutOffDistance = Float.POSITIVE_INFINITY;
         /**
          * fog's maximum opacity between 0 and 1
          */
         public float maximumOpacity = 1.0f;
         /**
-         * Fog's floor in world units [m]. This sets the "sea level".
+         * fog's floor in world units
          */
         public float height = 0.0f;
         /**
-         * How fast the fog dissipates with altitude. heightFalloff has a unit of [1/m].
-         * It can be expressed as 1/H, where H is the altitude change in world units [m] that causes a
-         * factor 2.78 (e) change in fog density.
-         *
-         * A falloff of 0 means the fog density is constant everywhere and may result is slightly
-         * faster computations.
+         * how fast fog dissipates with altitude
          */
         public float heightFalloff = 1.0f;
         /**
-         *  Fog's color is used for ambient light in-scattering, a good value is
-         *  to use the average of the ambient light, possibly tinted towards blue
-         *  for outdoors environments. Color component's values should be between 0 and 1, values
-         *  above one are allowed but could create a non energy-conservative fog (this is dependant
-         *  on the IBL's intensity as well).
-         *
-         *  We assume that our fog has no absorption and therefore all the light it scatters out
-         *  becomes ambient light in-scattering and has lost all directionality, i.e.: scattering is
-         *  isotropic. This somewhat simulates Rayleigh scattering.
-         *
-         *  This value is used as a tint instead, when fogColorFromIbl is enabled.
-         *
-         *  @see fogColorFromIbl
+         * fog's color (linear), see fogColorFromIbl
          */
         @NonNull @Size(min = 3)
-        public float[] color = {1.0f, 1.0f, 1.0f};
+        public float[] color = {0.5f, 0.5f, 0.5f};
         /**
-         * Extinction factor in [1/m] at altitude 'height'. The extinction factor controls how much
-         * light is absorbed and out-scattered per unit of distance. Each unit of extinction reduces
-         * the incoming light to 37% of its original value.
-         *
-         * Note: The extinction factor is related to the fog density, it's usually some constant K times
-         * the density at sea level (more specifically at fog height). The constant K depends on
-         * the composition of the fog/atmosphere.
-         *
-         * For historical reason this parameter is called `density`.
+         * fog's density at altitude given by 'height'
          */
         public float density = 0.1f;
         /**
-         * Distance in world units [m] from the camera where the Sun in-scattering starts.
+         * distance in world units from the camera where in-scattering starts
          */
         public float inScatteringStart = 0.0f;
         /**
-         * Very inaccurately simulates the Sun's in-scattering. That is, the light from the sun that
-         * is scattered (by the fog) towards the camera.
-         * Size of the Sun in-scattering (>0 to activate). Good values are >> 1 (e.g. ~10 - 100).
-         * Smaller values result is a larger scattering size.
+         * size of in-scattering (>0 to activate). Good values are >> 1 (e.g. ~10 - 100).
          */
         public float inScatteringSize = -1.0f;
         /**
-         * The fog color will be sampled from the IBL in the view direction and tinted by `color`.
-         * Depending on the scene this can produce very convincing results.
-         *
-         * This simulates a more anisotropic phase-function.
-         *
-         * `fogColorFromIbl` is ignored when skyTexture is specified.
-         *
-         * @see skyColor
+         * Fog color will be modulated by the IBL color in the view direction.
          */
         public boolean fogColorFromIbl = false;
         /**
-         * skyTexture must be a mipmapped cubemap. When provided, the fog color will be sampled from
-         * this texture, higher resolution mip levels will be used for objects at the far clip plane,
-         * and lower resolution mip levels for objects closer to the camera. The skyTexture should
-         * typically be heavily blurred; a typical way to produce this texture is to blur the base
-         * level with a strong gaussian filter or even an irradiance filter and then generate mip
-         * levels as usual. How blurred the base level is somewhat of an artistic decision.
-         *
-         * This simulates a more anisotropic phase-function.
-         *
-         * `fogColorFromIbl` is ignored when skyTexture is specified.
-         *
-         * @see Texture
-         * @see fogColorFromIbl
-         */
-        @Nullable
-        public Texture skyColor = null;
-        /**
-         * Enable or disable large-scale fog
+         * enable or disable fog
          */
         public boolean enabled = false;
     }
@@ -1954,13 +1817,6 @@ public class View {
          * Whether to generate mipmaps for all VSM shadow maps.
          */
         public boolean mipmapping = false;
-        /**
-         * The number of MSAA samples to use when rendering VSM shadow maps.
-         * Must be a power-of-two and greater than or equal to 1. A value of 1 effectively turns
-         * off MSAA.
-         * Higher values may not be available depending on the underlying hardware.
-         */
-        public int msaaSamples = 1;
         /**
          * Whether to use a 32-bits or 16-bits texture format for VSM shadow maps. 32-bits
          * precision is rarely needed, but it does reduces light leaks as well as "fading"
@@ -1997,11 +1853,4 @@ public class View {
          */
         public float penumbraRatioScale = 1.0f;
     }
-
-    /**
-     * Options for stereoscopic (multi-eye) rendering.
-     */
-    public static class StereoscopicOptions {
-        public boolean enabled = false;
-    }
 }

android/filament-android/src/main/java/com/google/android/filament/android/FilamentHelper.java

@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2023 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.google.android.filament.android;
-
-import com.google.android.filament.Engine;
-import com.google.android.filament.Fence;
-
-public class FilamentHelper {
-
-    /**
-     * Wait for all pending frames to be processed before returning. This is to avoid a race
-     * between the surface being resized before pending frames are rendered into it.
-     * <p>
-     * For {@link android.view.TextureView} this must be called before the texture's size is
-     * reconfigured, which unfortunately is done by the Android framework before
-     * {@link UiHelper} listeners are invoked. Therefore <code>synchronizePendingFrames</code>
-     * cannot be called from
-     * {@link android.view.TextureView.SurfaceTextureListener#onSurfaceTextureSizeChanged}; instead
-     * a subclass of {@link android.view.TextureView} must be used in order to call it from
-     * {@link android.view.TextureView#onSizeChanged}:
-     * </p>
-     * <pre>
-     * public class MyTextureView extends TextureView {
-     *     private Engine engine;
-     *     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
-     *         FilamentHelper.synchronizePendingFrames(engine);
-     *         super.onSizeChanged(w, h, oldw, oldh);
-     *     }
-     * }
-     * </pre>
-     *
-     * Otherwise, this is typically called from {@link UiHelper.RendererCallback#onResized},
-     * {@link android.view.SurfaceHolder.Callback#surfaceChanged}.
-     *
-     * @param engine Filament engine to synchronize
-     *
-     * @see UiHelper.RendererCallback#onResized
-     * @see android.view.SurfaceHolder.Callback#surfaceChanged
-     * @see android.view.TextureView#onSizeChanged
-     */
-    static public void synchronizePendingFrames(Engine engine) {
-        Fence fence = engine.createFence();
-        fence.wait(Fence.Mode.FLUSH, Fence.WAIT_FOR_EVER);
-        engine.destroyFence(fence);
-    }
-}

android/filament-android/src/main/java/com/google/android/filament/android/UiHelper.java

@@ -84,14 +84,6 @@ import com.google.android.filament.SwapChain;
  *             // The native surface has changed size. This is always called at least once
  *             // after the surface is created (after onNativeWindowChanged() is invoked).
  *             public void onResized(int width, int height) {
- *
- *                 // Wait for all pending frames to be processed before returning. This is to
- *                 // avoid a race between the surface being resized before pending frames are
- *                 // rendered into it.
- *                 Fence fence = mEngine.createFence();
- *                 fence.wait(Fence.Mode.FLUSH, Fence.WAIT_FOR_EVER);
- *                 mEngine.destroyFence(fence);
- *
  *                 // Compute camera projection and set the viewport on the view
  *             }
  *         });
@@ -183,7 +175,7 @@ public class UiHelper {
     }
 
     private static class SurfaceViewHandler implements RenderSurface {
-        private final SurfaceView mSurfaceView;
+        private SurfaceView mSurfaceView;
 
         SurfaceViewHandler(SurfaceView surface) {
             mSurfaceView = surface;
@@ -200,7 +192,7 @@ public class UiHelper {
     }
 
     private static class SurfaceHolderHandler implements RenderSurface {
-        private final SurfaceHolder mSurfaceHolder;
+        private SurfaceHolder mSurfaceHolder;
 
         SurfaceHolderHandler(SurfaceHolder surface) {
             mSurfaceHolder = surface;
@@ -217,7 +209,7 @@ public class UiHelper {
     }
 
     private class TextureViewHandler implements RenderSurface {
-        private final TextureView mTextureView;
+        private TextureView mTextureView;
         private Surface mSurface;
 
         TextureViewHandler(TextureView surface) { mTextureView = surface; }
@@ -244,10 +236,6 @@ public class UiHelper {
             }
             mSurface = surface;
         }
-
-        public Surface getSurface() {
-            return mSurface;
-        }
     }
 
     /**
@@ -493,14 +481,6 @@ public class UiHelper {
                     } else {
                         mRenderCallback.onResized(width, height);
                     }
-                    // We must recreate the SwapChain to guarantee that it sees the new size.
-                    // More precisely, for an EGL client, the EGLSurface must be recreated. For
-                    // a Vulkan client, the SwapChain must be recreated. Calling
-                    // onNativeWindowChanged() will accomplish that.
-                    // This requirement comes from SurfaceTexture.setDefaultBufferSize()
-                    // documentation.
-                    TextureViewHandler textureViewHandler = (TextureViewHandler) mRenderSurface;
-                    mRenderCallback.onNativeWindowChanged(textureViewHandler.getSurface());
                 }
 
                 @Override

android/filament-utils-android/build.gradle

@@ -1,7 +1,4 @@
 apply plugin: 'kotlin-android'
-kotlin {
-    jvmToolchain(versions.jdk)
-}
 
 android {
     namespace 'com.google.android.filament.utils'
@@ -24,11 +21,16 @@ android {
             excludes += ['lib/*/libfilament-jni.so', 'lib/*/libgltfio-jni.so']
         }
     }
+}
 
-    publishing {
-        singleVariant("release") {
-            withSourcesJar()
-            withJavadocJar()
+configurations.all { config ->
+    // Hack to preserve the version of the dependencies
+    if (!config.name.endsWith('Publication')) {
+        resolutionStrategy {
+            dependencySubstitution {
+                substitute(module("com.google.android.filament:gltfio-android:${VERSION_NAME}")).with(project(":gltfio-android"))
+                substitute(module("com.google.android.filament:gltfio-android-lite:${VERSION_NAME}")).with(project(":gltfio-android"))
+            }
         }
     }
 }
@@ -41,7 +43,7 @@ dependencies {
     implementation deps.coroutines.android
 
     api project(':filament-android')
-    api project(':gltfio-android')
+    api module("com.google.android.filament:gltfio-android:${VERSION_NAME}")
 }
 
 apply from: rootProject.file('gradle/gradle-mvn-push.gradle')

android/filament-utils-android/src/main/cpp/AutomationEngine.cpp

@@ -166,8 +166,6 @@ Java_com_google_android_filament_utils_AutomationEngine_nGetViewerOptions(JNIEnv
     const jfieldID cameraAperture = env->GetFieldID(klass, "cameraAperture", "F");
     const jfieldID cameraSpeed = env->GetFieldID(klass, "cameraSpeed", "F");
     const jfieldID cameraISO = env->GetFieldID(klass, "cameraISO", "F");
-    const jfieldID cameraNear = env->GetFieldID(klass, "cameraNear", "F");
-    const jfieldID cameraFar = env->GetFieldID(klass, "cameraFar", "F");
     const jfieldID groundShadowStrength = env->GetFieldID(klass, "groundShadowStrength", "F");
     const jfieldID groundPlaneEnabled = env->GetFieldID(klass, "groundPlaneEnabled", "Z");
     const jfieldID skyboxEnabled = env->GetFieldID(klass, "skyboxEnabled", "Z");
@@ -179,8 +177,6 @@ Java_com_google_android_filament_utils_AutomationEngine_nGetViewerOptions(JNIEnv
     env->SetFloatField(result, cameraAperture, options.cameraAperture);
     env->SetFloatField(result, cameraSpeed, options.cameraSpeed);
     env->SetFloatField(result, cameraISO, options.cameraISO);
-    env->SetFloatField(result, cameraNear, options.cameraNear);
-    env->SetFloatField(result, cameraFar, options.cameraFar);
     env->SetFloatField(result, groundShadowStrength, options.groundShadowStrength);
     env->SetBooleanField(result, groundPlaneEnabled, options.groundPlaneEnabled);
     env->SetBooleanField(result, skyboxEnabled, options.skyboxEnabled);

android/filament-utils-android/src/main/java/com/google/android/filament/utils/AutomationEngine.java

@@ -97,8 +97,6 @@ public class AutomationEngine {
         public float cameraAperture = 16.0f;
         public float cameraSpeed = 125.0f;
         public float cameraISO = 100.0f;
-        public float cameraNear = 0.1f;
-        public float cameraFar = 100.0f;
         public float groundShadowStrength = 0.75f;
         public boolean groundPlaneEnabled = false;
         public boolean skyboxEnabled = true;

android/filament-utils-android/src/main/java/com/google/android/filament/utils/Matrix.kt

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-@file:Suppress("NOTHING_TO_INLINE", "unused")
+@file:Suppress("unused")
 
 package com.google.android.filament.utils
 
@@ -24,16 +24,8 @@ enum class MatrixColumn {
     X, Y, Z, W
 }
 
-enum class RotationsOrder(
-        val yaw: VectorComponent,
-        val pitch: VectorComponent,
-        val roll: VectorComponent) {
-    XYZ(VectorComponent.X, VectorComponent.Y, VectorComponent.Z),
-    XZY(VectorComponent.X, VectorComponent.Z, VectorComponent.Y),
-    YXZ(VectorComponent.Y, VectorComponent.X, VectorComponent.Z),
-    YZX(VectorComponent.Y, VectorComponent.Z, VectorComponent.X),
-    ZXY(VectorComponent.Z, VectorComponent.X, VectorComponent.Y),
-    ZYX(VectorComponent.Z, VectorComponent.Y, VectorComponent.X);
+enum class RotationsOrder {
+    XYZ, XZY, YXZ, YZX, ZXY, ZYX
 }
 
 data class Mat2(
@@ -85,12 +77,6 @@ data class Mat2(
     operator fun minus(v: Float) = Mat2(x - v, y - v)
     operator fun times(v: Float) = Mat2(x * v, y * v)
     operator fun div(v: Float) = Mat2(x / v, y / v)
-    inline fun compareTo(v: Float, delta: Float = 0.0f) = Mat2(
-        x.compareTo(v, delta),
-        y.compareTo(v, delta)
-    )
-
-    inline fun equals(v: Float, delta: Float = 0.0f) = x.equals(v, delta) && y.equals(v, delta)
 
     operator fun times(m: Mat2) = Mat2(
             Float2(
@@ -103,18 +89,12 @@ data class Mat2(
             )
     )
 
-    inline fun compareTo(m: Mat2, delta: Float = 0.0f) = Mat2(
-        x.compareTo(m.x, delta),
-        y.compareTo(m.y, delta)
-    )
-
-    inline fun equals(m: Mat2, delta: Float = 0.0f) = x.equals(m.x, delta) && y.equals(m.y, delta)
-
     operator fun times(v: Float2) = Float2(
             x.x * v.x + y.x * v.y,
             x.y * v.x + y.y * v.y,
     )
 
+
     fun toFloatArray() = floatArrayOf(
             x.x, y.x,
             x.y, y.y
@@ -126,6 +106,7 @@ data class Mat2(
             |${x.y} ${y.y}|
             """.trimIndent()
     }
+
 }
 
 data class Mat3(
@@ -181,14 +162,6 @@ data class Mat3(
     operator fun minus(v: Float) = Mat3(x - v, y - v, z - v)
     operator fun times(v: Float) = Mat3(x * v, y * v, z * v)
     operator fun div(v: Float) = Mat3(x / v, y / v, z / v)
-    inline fun compareTo(v: Float, delta: Float = 0.0f) = Mat3(
-        x.compareTo(v, delta),
-        y.compareTo(v, delta),
-        z.compareTo(v, delta)
-    )
-
-    inline fun equals(v: Float, delta: Float = 0.0f) =
-        x.equals(v, delta) && y.equals(v, delta) && z.equals(v, delta)
 
     operator fun times(m: Mat3) = Mat3(
             Float3(
@@ -208,15 +181,6 @@ data class Mat3(
             )
     )
 
-    inline fun compareTo(m: Mat3, delta: Float = 0.0f) = Mat3(
-        x.compareTo(m.x, delta),
-        y.compareTo(m.y, delta),
-        z.compareTo(m.z, delta)
-    )
-
-    inline fun equals(m: Mat3, delta: Float = 0.0f) =
-        x.equals(m.x, delta) && y.equals(m.y, delta) && z.equals(m.z, delta)
-
     operator fun times(v: Float3) = Float3(
             x.x * v.x + y.x * v.y + z.x * v.z,
             x.y * v.x + y.y * v.y + z.y * v.z,
@@ -248,7 +212,6 @@ data class Mat4(
     constructor(m: Mat4) : this(m.x.copy(), m.y.copy(), m.z.copy(), m.w.copy())
 
     companion object {
-
         fun of(vararg a: Float): Mat4 {
             require(a.size >= 16)
             return Mat4(
@@ -339,15 +302,6 @@ data class Mat4(
     operator fun minus(v: Float) = Mat4(x - v, y - v, z - v, w - v)
     operator fun times(v: Float) = Mat4(x * v, y * v, z * v, w * v)
     operator fun div(v: Float) = Mat4(x / v, y / v, z / v, w / v)
-    inline fun compareTo(v: Float, delta: Float = 0.0f) = Mat4(
-        x.compareTo(v, delta),
-        y.compareTo(v, delta),
-        z.compareTo(v, delta),
-        w.compareTo(v, delta)
-    )
-
-    inline fun equals(v: Float, delta: Float = 0.0f) =
-        x.equals(v, delta) && y.equals(v, delta) && z.equals(v, delta) && w.equals(v, delta)
 
     operator fun times(m: Mat4) = Mat4(
             Float4(
@@ -376,16 +330,6 @@ data class Mat4(
             )
     )
 
-    inline fun compareTo(m: Mat4, delta: Float = 0.0f) = Mat4(
-        x.compareTo(m.x, delta),
-        y.compareTo(m.y, delta),
-        z.compareTo(m.z, delta),
-        w.compareTo(m.w, delta)
-    )
-
-    inline fun equals(m: Mat4, delta: Float = 0.0f) =
-        x.equals(m.x, delta) && y.equals(m.y, delta) && z.equals(m.z, delta) && w.equals(m.w, delta)
-
     operator fun times(v: Float4) = Float4(
             x.x * v.x + y.x * v.y + z.x * v.z+ w.x * v.w,
             x.y * v.x + y.y * v.y + z.y * v.z+ w.y * v.w,
@@ -393,26 +337,6 @@ data class Mat4(
             x.w * v.x + y.w * v.y + z.w * v.z+ w.w * v.w
     )
 
-    /**
-     * Get the Euler angles in degrees from this rotation Matrix
-     *
-     * Don't forget to extract the rotation with [rotation] if this is a transposed matrix
-     *
-     * @param order The order in which to apply rotations.
-     * Default is [RotationsOrder.ZYX] which means that the object will first be rotated around its Z
-     * axis, then its Y axis and finally its X axis.
-     *
-     * @see eulerAngles
-     */
-    fun toEulerAngles(order: RotationsOrder = RotationsOrder.ZYX) = eulerAngles(this, order)
-
-    /**
-     * Get the [Quaternion] from this rotation Matrix
-     *
-     * Don't forget to extract the rotation with [rotation] if this is a transposed matrix
-     *
-     * @see quaternion
-     */
     fun toQuaternion() = quaternion(this)
 
     fun toFloatArray() = floatArrayOf(
@@ -432,78 +356,6 @@ data class Mat4(
     }
 }
 
-inline fun equal(a: Mat2, b: Float, delta: Float = 0.0f) = Bool2(
-    a.x.equals(b, delta),
-    a.y.equals(b, delta)
-)
-
-inline fun equal(a: Mat2, b: Mat2, delta: Float = 0.0f) = Bool2(
-    a.x.equals(b.x, delta),
-    a.y.equals(b.y, delta)
-)
-
-inline fun notEqual(a: Mat2, b: Float, delta: Float = 0.0f) = Bool2(
-    !a.x.equals(b, delta),
-    !a.y.equals(b, delta)
-)
-
-inline fun notEqual(a: Mat2, b: Mat2, delta: Float = 0.0f) = Bool2(
-    !a.x.equals(b.x, delta),
-    !a.y.equals(b.y, delta)
-)
-
-inline fun equal(a: Mat3, b: Float, delta: Float = 0.0f) = Bool3(
-    a.x.equals(b, delta),
-    a.y.equals(b, delta),
-    a.z.equals(b, delta)
-)
-
-inline fun equal(a: Mat3, b: Mat3, delta: Float = 0.0f) = Bool3(
-    a.x.equals(b.x, delta),
-    a.y.equals(b.y, delta),
-    a.z.equals(b.z, delta)
-)
-
-inline fun notEqual(a: Mat3, b: Float, delta: Float = 0.0f) = Bool3(
-    !a.x.equals(b, delta),
-    !a.y.equals(b, delta),
-    !a.z.equals(b, delta)
-)
-
-inline fun notEqual(a: Mat3, b: Mat3, delta: Float = 0.0f) = Bool3(
-    !a.x.equals(b.x, delta),
-    !a.y.equals(b.y, delta),
-    !a.z.equals(b.z, delta)
-)
-
-inline fun equal(a: Mat4, b: Float, delta: Float = 0.0f) = Bool4(
-    a.x.equals(b, delta),
-    a.y.equals(b, delta),
-    a.z.equals(b, delta),
-    a.w.equals(b, delta)
-)
-
-inline fun equal(a: Mat4, b: Mat4, delta: Float = 0.0f) = Bool4(
-    a.x.equals(b.x, delta),
-    a.y.equals(b.y, delta),
-    a.z.equals(b.z, delta),
-    a.w.equals(b.w, delta)
-)
-
-inline fun notEqual(a: Mat4, b: Float, delta: Float = 0.0f) = Bool4(
-    !a.x.equals(b, delta),
-    !a.y.equals(b, delta),
-    !a.z.equals(b, delta),
-    !a.w.equals(b, delta)
-)
-
-inline fun notEqual(a: Mat4, b: Mat4, delta: Float = 0.0f) = Bool4(
-    !a.x.equals(b.x, delta),
-    !a.y.equals(b.y, delta),
-    !a.z.equals(b.z, delta),
-    !a.w.equals(b.w, delta)
-)
-
 fun transpose(m: Mat2) = Mat2(
         Float2(m.x.x, m.y.x),
         Float2(m.x.y, m.y.y)
@@ -642,7 +494,14 @@ fun rotation(m: Mat4) = Mat4(normalize(m.right), normalize(m.up), normalize(m.fo
  */
 fun rotation(d: Float3, order: RotationsOrder = RotationsOrder.ZYX): Mat4 {
     val r = transform(d, ::radians)
-    return rotation(r[order.yaw], r[order.pitch], r[order.roll], order)
+    return when(order) {
+        RotationsOrder.XZY -> rotation(r.x, r.z, r.y)
+        RotationsOrder.XYZ -> rotation(r.x, r.y, r.z)
+        RotationsOrder.YXZ -> rotation(r.y, r.x, r.z)
+        RotationsOrder.YZX -> rotation(r.y, r.z, r.x)
+        RotationsOrder.ZYX -> rotation(r.z, r.y, r.x)
+        RotationsOrder.ZXY -> rotation(r.z, r.x, r.y)
+    }
 }
 
 /**
@@ -740,93 +599,13 @@ fun rotation(quaternion: Quaternion): Mat4 {
             Float4(
                 2.0f * (n.x * n.z + n.y * n.w),
                 2.0f * (n.y * n.z - n.x * n.w),
-                1.0f - 2.0f * (n.x * n.x + n.y * n.y)
+                1.0f - 2.0f * (n.x * n.x + n.y * n.y),
             )
     )
 }
 
 /**
- * Get the Euler angles in degrees from a rotation Matrix
- *
- * @param m The rotation matrix.
- * Don't forget to extract the rotation with [rotation] if it's transposed
- * @param order The order in which to apply rotations.
- * Default is [RotationsOrder.ZYX] which means that the object will first be rotated around its Z
- * axis, then its Y axis and finally its X axis.
- */
-fun eulerAngles(m: Mat4, order: RotationsOrder = RotationsOrder.ZYX): Float3 {
-    // We need to more simplify this with RotationsOrder VectorComponents mapped to MatrixColumn
-    return transform(Float3().apply {
-        when (order) {
-            RotationsOrder.XYZ -> {
-                this[order.pitch] = asin(clamp(m.z.x, -1.0f, 1.0f))
-                if (abs(m.z.x) < 0.9999999f) {
-                    this[order.yaw] = atan2(-m.z.y, m.z.z)
-                    this[order.roll] = atan2(-m.y.x, m.x.x)
-                } else {
-                    this[order.yaw] = atan2(m.y.z, m.y.y)
-                    this[order.roll] = 0.0f
-                }
-            }
-            RotationsOrder.XZY -> {
-                this[order.pitch] = asin(-clamp(m.y.x, -1.0f, 1.0f))
-                if (abs(m.y.x) < 0.9999999f) {
-                    this[order.yaw] = atan2(m.y.z, m.y.y)
-                    this[order.roll] = atan2(m.z.x, m.x.x)
-                } else {
-                    this[order.yaw] = atan2(-m.z.y, m.z.z)
-                    this[order.roll] = 0.0f
-                }
-            }
-            RotationsOrder.YXZ -> {
-                this[order.pitch] = asin(-clamp(m.z.y, -1.0f, 1.0f))
-                if (abs(m.z.y) < 0.9999999f) {
-                    this[order.yaw] = atan2(m.z.x, m.z.z)
-                    this[order.roll] = atan2(m.x.y, m.y.y)
-                } else {
-                    this[order.yaw] = atan2(-m.x.z, m.x.x)
-                    this[order.roll] = 0.0f
-                }
-            }
-            RotationsOrder.YZX -> {
-                this[order.pitch] = asin(clamp(m.x.y, -1.0f, 1.0f))
-                if (abs(m.x.y) < 0.9999999f) {
-                    this[order.roll] = atan2(-m.z.y, m.y.y)
-                    this[order.yaw] = atan2(-m.x.z, m.x.x)
-                } else {
-                    this[order.roll] = 0.0f
-                    this[order.yaw] = atan2(m.z.x, m.z.z)
-                }
-            }
-            RotationsOrder.ZXY -> {
-                this[order.pitch] = asin(clamp(m.y.z, -1.0f, 1.0f))
-                if (abs(m.y.z) < 0.9999999f) {
-                    this[order.roll] = atan2(-m.x.z, m.z.z)
-                    this[order.yaw] = atan2(-m.y.x, m.y.y)
-                } else {
-                    this[order.roll] = 0.0f
-                    this[order.yaw] = atan2(m.x.y, m.x.x)
-                }
-            }
-            RotationsOrder.ZYX -> {
-                this[order.pitch] = asin(-clamp(m.x.z, -1.0f, 1.0f))
-                if (abs(m.x.z) < 0.9999999f) {
-                    this[order.roll] = atan2(m.y.z, m.z.z)
-                    this[order.yaw] = atan2(m.x.y, m.x.x)
-                } else {
-                    this[order.roll] = 0.0f
-                    this[order.yaw] = atan2(-m.y.x, m.y.y)
-                }
-            }
-        }
-    }, ::degrees)
-}
-
-/**
- * Get the [Quaternion] from a rotation Matrix
- *
- * @param m The rotation matrix.
- * Don't forget to extract the rotation with [rotation] if it's transposed
+ * Extract Quaternion rotation from a Matrix
  */
 fun quaternion(m: Mat4): Quaternion {
     val trace = m.x.x + m.y.y + m.z.z
@@ -894,14 +673,9 @@ fun perspective(fov: Float, ratio: Float, near: Float, far: Float): Mat4 {
 }
 
 fun ortho(l: Float, r: Float, b: Float, t: Float, n: Float, f: Float) = Mat4(
-    Float4(x = 2.0f / (r - l)),
-    Float4(y = 2.0f / (t - b)),
-    Float4(z = -2.0f / (f - n)),
-    Float4(
-        -(r + l) / (r - l),
-        -(t + b) / (t - b),
-        -(f + n) / (f - n),
-        1.0f
-    )
+        Float4(x = 2.0f / (r - 1.0f)),
+        Float4(y = 2.0f / (t - b)),
+        Float4(z = -2.0f / (f - n)),
+        Float4(-(r + l) / (r - l), -(t + b) / (t - b), -(f + n) / (f - n), 1.0f)
 )
 

android/filament-utils-android/src/main/java/com/google/android/filament/utils/ModelViewer.kt

@@ -27,8 +27,8 @@ import com.google.android.filament.gltfio.*
 import kotlinx.coroutines.*
 import java.nio.Buffer
 
-private const val kNearPlane = 0.05f     // 5 cm
-private const val kFarPlane = 1000.0f    // 1 km
+private const val kNearPlane = 0.05     // 5 cm
+private const val kFarPlane = 1000.0    // 1 km
 private const val kAperture = 16f
 private const val kShutterSpeed = 1f / 125f
 private const val kSensitivity = 100f
@@ -80,18 +80,6 @@ class ModelViewer(
             updateCameraProjection()
         }
 
-    var cameraNear = kNearPlane
-        set(value) {
-            field = value
-            updateCameraProjection()
-        }
-
-    var cameraFar = kFarPlane
-        set(value) {
-            field = value
-            updateCameraProjection()
-        }
-
     val scene: Scene
     val view: View
     val camera: Camera
@@ -191,7 +179,7 @@ class ModelViewer(
         asset = assetLoader.createAsset(buffer)
         asset?.let { asset ->
             resourceLoader.asyncBeginLoad(asset)
-            animator = asset.instance.animator
+            animator = asset.getInstance().animator
             asset.releaseSourceData()
         }
     }
@@ -214,7 +202,7 @@ class ModelViewer(
                 resourceLoader.addResourceData(uri, resourceBuffer)
             }
             resourceLoader.asyncBeginLoad(asset)
-            animator = asset.instance.animator
+            animator = asset.getInstance().animator
             asset.releaseSourceData()
         }
     }
@@ -311,7 +299,7 @@ class ModelViewer(
         var count = 0
         val popRenderables = { count = asset.popRenderables(readyRenderables); count != 0 }
         while (popRenderables()) {
-            for (i in 0 until count) {
+            for (i in 0..count - 1) {
                 val ri = rcm.getInstance(readyRenderables[i])
                 rcm.setScreenSpaceContactShadows(ri, true)
             }
@@ -371,7 +359,7 @@ class ModelViewer(
                 resourceLoader.addResourceData(uri, buffer)
             }
             resourceLoader.asyncBeginLoad(asset)
-            animator = asset.instance.animator
+            animator = asset.getInstance().animator
             asset.releaseSourceData()
         }
     }
@@ -380,8 +368,7 @@ class ModelViewer(
         val width = view.viewport.width
         val height = view.viewport.height
         val aspect = width.toDouble() / height.toDouble()
-        camera.setLensProjection(cameraFocalLength.toDouble(), aspect,
-            cameraNear.toDouble(), cameraFar.toDouble())
+        camera.setLensProjection(cameraFocalLength.toDouble(), aspect, kNearPlane, kFarPlane)
     }
 
     inner class SurfaceCallback : UiHelper.RendererCallback {
@@ -405,19 +392,9 @@ class ModelViewer(
             view.viewport = Viewport(0, 0, width, height)
             cameraManipulator.setViewport(width, height)
             updateCameraProjection()
-            synchronizePendingFrames(engine)
         }
     }
 
-    private fun synchronizePendingFrames(engine: Engine) {
-        // Wait for all pending frames to be processed before returning. This is to
-        // avoid a race between the surface being resized before pending frames are
-        // rendered into it.
-        val fence = engine.createFence()
-        fence.wait(Fence.Mode.FLUSH, Fence.WAIT_FOR_EVER)
-        engine.destroyFence(fence)
-    }
-
     companion object {
         private val kDefaultObjectPosition = Float3(0.0f, 0.0f, -4.0f)
     }

android/filament-utils-android/src/main/java/com/google/android/filament/utils/Quaternion.kt

@@ -33,9 +33,9 @@ data class Quaternion(
         var x: Float = 0.0f,
         var y: Float = 0.0f,
         var z: Float = 0.0f,
-        var w: Float = 1.0f) {
+        var w: Float = 0.0f) {
 
-    constructor(v: Float3, w: Float = 1.0f) : this(v.x, v.y, v.z, w)
+    constructor(v: Float3, w: Float = 0.0f) : this(v.x, v.y, v.z, w)
     constructor(v: Float4) : this(v.x, v.y, v.z, v.w)
     constructor(q: Quaternion) : this(q.x, q.y, q.z, q.w)
 
@@ -52,84 +52,42 @@ data class Quaternion(
         }
 
         /**
-         * Construct a Quaternion from Euler angles using YPR around a specified order
+         * Construct a Quaternion from Euler angles using YPR around ZYX respectively
          *
-         * Uses intrinsic Tait-Bryan angles. This means that rotations are performed with respect to
-         * the local coordinate system.
-         * That is, for order 'XYZ', the rotation is first around the X axis (which is the same as
-         * the world-X axis), then around local-Y (which may now be different from the world
-         * Y-axis), then local-Z (which may be different from the world Z-axis)
+         * The Euler angles are applied in ZYX order.
+         * i.e: a vector is first rotated about X (roll) then Y (pitch) and then Z (yaw).
          *
          * @param d Per axis Euler angles in degrees
-         * Yaw, pitch, roll (YPR) are taken accordingly to the rotations order input.
-         * @param order The order in which to apply rotations.
-         * Default is [RotationsOrder.ZYX] which means that the object will first be rotated around
-         * its Z axis, then its Y axis and finally its X axis.
          */
-        fun fromEuler(d: Float3, order: RotationsOrder = RotationsOrder.ZYX): Quaternion {
+        fun fromEuler(d: Float3): Quaternion {
             val r = transform(d, ::radians)
-            return fromEuler(r[order.yaw], r[order.pitch], r[order.roll], order)
+            return fromEulerZYX(r.z, r.y, r.x)
         }
 
         /**
-         * Construct a Quaternion from Euler yaw, pitch, roll around a specified order.
+         * Construct a Quaternion from Euler angles using YPR around ZYX respectively
          *
-         * @param roll about 1st rotation axis in radians. Z in case of ZYX order
-         * @param pitch about 2nd rotation axis in radians. Y in case of ZYX order
-         * @param yaw about 3rd rotation axis in radians. X in case of ZYX order
-         * @param order The order in which to apply rotations.
-         * Default is [RotationsOrder.ZYX] which means that the object will first be rotated around its Z
-         * axis, then its Y axis and finally its X axis.
+         * The Euler angles are applied in ZYX order.
+         * i.e: a vector is first rotated about X (roll) then Y (pitch) and then Z (yaw).
+         *
+         * @param roll about X axis in radians
+         * @param pitch about Y axis in radians
+         * @param yaw about Z axis in radians
          */
-        fun fromEuler(
-            yaw: Float = 0.0f,
-            pitch: Float = 0.0f,
-            roll: Float = 0.0f,
-            order: RotationsOrder = RotationsOrder.ZYX
-        ): Quaternion {
-            val c1 = cos(yaw * 0.5f)
-            val s1 = sin(yaw * 0.5f)
-            val c2 = cos(pitch * 0.5f)
-            val s2 = sin(pitch * 0.5f)
-            val c3 = cos(roll * 0.5f)
-            val s3 = sin(roll * 0.5f)
-            return when (order) {
-                RotationsOrder.XZY -> Quaternion(
-                        s1 * c2 * c3 - c1 * s2 * s3,
-                        c1 * c2 * s3 - s1 * s2 * c3,
-                        s1 * c2 * s3 + c1 * s2 * c3,
-                        s1 * s2 * s3 + c1 * c2 * c3)
-                RotationsOrder.XYZ -> Quaternion(
-                        s1 * c2 * c3 + s2 * s3 * c1,
-                        s2 * c1 * c3 - s1 * s3 * c2,
-                        s1 * s2 * c3 + s3 * c1 * c2,
-                        c1 * c2 * c3 - s1 * s2 * s3
-                )
-                RotationsOrder.YXZ -> Quaternion(
-                        s1 * c2 * s3 + c1 * s2 * c3,
-                        s1 * c2 * c3 - c1 * s2 * s3,
-                        c1 * c2 * s3 - s1 * s2 * c3,
-                        s1 * s2 * s3 + c1 * c2 * c3
-                )
-                RotationsOrder.YZX -> Quaternion(
-                        s1 * s2 * c3 + c1 * c2 * s3,
-                        s1 * c2 * c3 + c1 * s2 * s3,
-                        c1 * s2 * c3 - s1 * c2 * s3,
-                        c1 * c2 * c3 - s1 * s2 * s3
-                )
-                RotationsOrder.ZYX -> Quaternion(
-                        c1 * c2 * s3 - s1 * s2 * c3,
-                        s1 * c2 * s3 + c1 * s2 * c3,
-                        s1 * c2 * c3 - c1 * s2 * s3,
-                        s1 * s2 * s3 + c1 * c2 * c3
-                )
-                RotationsOrder.ZXY -> Quaternion(
-                        c1 * s2 * c3 - s1 * c2 * s3,
-                        s1 * s2 * c3 + c1 * c2 * s3,
-                        s1 * c2 * c3 + c1 * s2 * s3,
-                        c1 * c2 * c3 - s1 * s2 * s3
-                )
-            }
+        fun fromEulerZYX(yaw: Float = 0.0f, pitch: Float = 0.0f, roll: Float = 0.0f): Quaternion {
+            val cy = cos(yaw * 0.5f)
+            val sy = sin(yaw * 0.5f)
+            val cp = cos(pitch * 0.5f)
+            val sp = sin(pitch * 0.5f)
+            val cr = cos(roll * 0.5f)
+            val sr = sin(roll * 0.5f)
+
+            return Quaternion(
+                    sr * cp * cy - cr * sp * sy,
+                    cr * sp * cy + sr * cp * sy,
+                    cr * cp * sy - sr * sp * cy,
+                    cr * cp * cy + sr * sp * sy
+            )
         }
     }
 
@@ -264,44 +222,16 @@ data class Quaternion(
     inline operator fun minus(v: Float) = Quaternion(x - v, y - v, z - v, w - v)
     inline operator fun times(v: Float) = Quaternion(x * v, y * v, z * v, w * v)
     inline operator fun div(v: Float) = Quaternion(x / v, y / v, z / v, w / v)
-    inline fun compareTo(v: Float, delta: Float = 0.0f) = Float4(
-        x.compareTo(v, delta),
-        y.compareTo(v, delta),
-        z.compareTo(v, delta),
-        w.compareTo(v, delta)
-    )
-
-    inline fun equals(v: Float, delta: Float = 0.0f) = Bool4(
-        x.equals(v, delta),
-        y.equals(v, delta),
-        z.equals(v, delta),
-        w.equals(v, delta)
-    )
 
     inline operator fun times(v: Float3) = (this * Quaternion(v, 0.0f) * inverse(this)).xyz
 
     inline operator fun plus(q: Quaternion) = Quaternion(x + q.x, y + q.y, z + q.z, w + q.w)
     inline operator fun minus(q: Quaternion) = Quaternion(x - q.x, y - q.y, z - q.z, w - q.w)
     inline operator fun times(q: Quaternion) = Quaternion(
-        w * q.x + x * q.w + y * q.z - z * q.y,
-        w * q.y - x * q.z + y * q.w + z * q.x,
-        w * q.z + x * q.y - y * q.x + z * q.w,
-        w * q.w - x * q.x - y * q.y - z * q.z
-    )
-
-    inline fun compareTo(v: Float4, delta: Float = 0.0f) = Float4(
-        x.compareTo(v.x, delta),
-        y.compareTo(v.y, delta),
-        z.compareTo(v.z, delta),
-        w.compareTo(v.w, delta)
-    )
-
-    inline fun equals(v: Float4, delta: Float = 0.0f) = Bool4(
-        x.equals(v.x, delta),
-        y.equals(v.y, delta),
-        z.equals(v.z, delta),
-        w.equals(v.w, delta)
-    )
+            w * q.x + x * q.w + y * q.z - z * q.y,
+            w * q.y - x * q.z + y * q.w + z * q.x,
+            w * q.z + x * q.y - y * q.x + z * q.w,
+            w * q.w - x * q.x - y * q.y - z * q.z)
 
     inline fun transform(block: (Float) -> Float): Quaternion {
         x = block(x)
@@ -323,103 +253,6 @@ inline operator fun Float.minus(q: Quaternion) = Quaternion(this - q.x, this - q
 inline operator fun Float.times(q: Quaternion) = Quaternion(this * q.x, this * q.y, this * q.z, this * q.w)
 inline operator fun Float.div(q: Quaternion) = Quaternion(this / q.x, this / q.y, this / q.z, this / q.w)
 
-inline fun lessThan(a: Quaternion, b: Float) = Bool4(
-    a.x < b,
-    a.y < b,
-    a.z < b,
-    a.w < b
-)
-
-inline fun lessThan(a: Quaternion, b: Quaternion) = Bool4(
-    a.x < b.x,
-    a.y < b.y,
-    a.z < b.z,
-    a.w < b.w
-)
-
-inline fun lessThanEqual(a: Quaternion, b: Float) = Bool4(
-    a.x <= b,
-    a.y <= b,
-    a.z <= b,
-    a.w <= b
-)
-
-inline fun lessThanEqual(a: Quaternion, b: Quaternion) = Bool4(
-    a.x <= b.x,
-    a.y <= b.y,
-    a.z <= b.z,
-    a.w <= b.w
-)
-
-inline fun greaterThan(a: Quaternion, b: Float) = Bool4(
-    a.x > b,
-    a.y > b,
-    a.z > b,
-    a.w > b
-)
-
-inline fun greaterThan(a: Quaternion, b: Quaternion) = Bool4(
-    a.x > b.y,
-    a.y > b.y,
-    a.z > b.z,
-    a.w > b.w
-)
-
-inline fun greaterThanEqual(a: Quaternion, b: Float) = Bool4(
-    a.x >= b,
-    a.y >= b,
-    a.z >= b,
-    a.w >= b
-)
-
-inline fun greaterThanEqual(a: Quaternion, b: Quaternion) = Bool4(
-    a.x >= b.x,
-    a.y >= b.y,
-    a.z >= b.z,
-    a.w >= b.w
-)
-
-inline fun equal(a: Quaternion, b: Float, delta: Float = 0.0f) = Bool4(
-    a.x.equals(b, delta),
-    a.y.equals(b, delta),
-    a.z.equals(b, delta),
-    a.w.equals(b, delta)
-)
-
-inline fun equal(a: Quaternion, b: Quaternion, delta: Float = 0.0f) = Bool4(
-    a.x.equals(b.x, delta),
-    a.y.equals(b.y, delta),
-    a.z.equals(b.z, delta),
-    a.w.equals(b.w, delta)
-)
-
-inline fun notEqual(a: Quaternion, b: Float, delta: Float = 0.0f) = Bool4(
-    !a.x.equals(b, delta),
-    !a.y.equals(b, delta),
-    !a.z.equals(b, delta),
-    !a.w.equals(b, delta)
-)
-
-inline fun notEqual(a: Quaternion, b: Quaternion, delta: Float = 0.0f) = Bool4(
-    !a.x.equals(b.x, delta),
-    !a.y.equals(b.y, delta),
-    !a.z.equals(b.z, delta),
-    !a.w.equals(b.w, delta)
-)
-
-inline infix fun Quaternion.lt(b: Float) = Bool4(x < b, y < b, z < b, w < b)
-inline infix fun Quaternion.lt(b: Float4) = Bool4(x < b.x, y < b.y, z < b.z, w < b.w)
-inline infix fun Quaternion.lte(b: Float) = Bool4(x <= b, y <= b, z <= b, w <= b)
-inline infix fun Quaternion.lte(b: Float4) = Bool4(x <= b.x, y <= b.y, z <= b.z, w <= b.w)
-inline infix fun Quaternion.gt(b: Float) = Bool4(x > b, y > b, z > b, w > b)
-inline infix fun Quaternion.gt(b: Float4) = Bool4(x > b.x, y > b.y, z > b.z, w > b.w)
-inline infix fun Quaternion.gte(b: Float) = Bool4(x >= b, y >= b, z >= b, w >= b)
-inline infix fun Quaternion.gte(b: Float4) = Bool4(x >= b.x, y >= b.y, z >= b.z, w >= b.w)
-inline infix fun Quaternion.eq(b: Float) = Bool4(x == b, y == b, z == b, w == b)
-inline infix fun Quaternion.eq(b: Float4) = Bool4(x == b.x, y == b.y, z == b.z, w == b.w)
-inline infix fun Quaternion.neq(b: Float) = Bool4(x != b, y != b, z != b, w != b)
-inline infix fun Quaternion.neq(b: Float4) = Bool4(x != b.x, y != b.y, z != b.z, w != b.w)
-
 inline fun abs(q: Quaternion) = Quaternion(abs(q.x), abs(q.y), abs(q.z), abs(q.w))
 inline fun length(q: Quaternion) = sqrt(q.x * q.x + q.y * q.y + q.z * q.z + q.w * q.w)
 inline fun length2(q: Quaternion) = q.x * q.x + q.y * q.y + q.z * q.z + q.w * q.w
@@ -445,10 +278,6 @@ fun cross(a: Quaternion, b: Quaternion): Quaternion {
     return Quaternion(m.x, m.y, m.z, 0.0f)
 }
 
-fun angle(a: Quaternion, b: Quaternion): Float {
-    return 2.0f * acos(abs(clamp(dot(a, b), -1.0f, 1.0f)))
-}
-
 /**
  * Spherical linear interpolation between two given orientations
  *
@@ -458,38 +287,36 @@ fun angle(a: Quaternion, b: Quaternion): Float {
  * @param a The beginning value
  * @param b The ending value
  * @param t The ratio between the two floats
- * @param dotThreshold If the quaternion dot product is greater than this value
- * (i.e. the quaternions are very close to each other), then the quaternions are
- * linearly interpolated instead of spherically interpolated.
+ * @param valueEps Prevent blowing up when slerping between two quaternions that are very near each
+ * other. Linear interpolation (lerp) is returned in this case.
  *
  * @return Interpolated value between the two floats
  */
-fun slerp(a: Quaternion, b: Quaternion, t: Float, dotThreshold: Float = 0.9995f): Quaternion {
+fun slerp(a: Quaternion, b: Quaternion, t: Float, valueEps: Float = 0.0000000001f): Quaternion {
     // could also be computed as: pow(q * inverse(p), t) * p;
-    var dot = dot(a, b)
-    var b1 = b
-
-    // If the dot product is negative, then the interpolation won't follow the shortest angular path
-    // between the two quaterions. In this case, invert the end quaternion to produce an equivalent
-    // rotation that will give us the path we want.
-    if (dot < 0.0f) {
-        dot = -dot
-        b1 = -b
-    }
-
+    val d = dot(a, b)
+    val absd = abs(d)
     // Prevent blowing up when slerping between two quaternions that are very near each other.
-    return if (dot < dotThreshold) {
-        val angle = acos(dot)
-        val s = sin(angle)
-        a * sin((1.0f - t) * angle) / s + b1 * sin(t * angle) / s
-    } else {
-        // If the angle is too small, use linear interpolation
-        nlerp(a, b1, t)
+    if ((1.0f - absd) < valueEps) {
+        return normalize(lerp(if (d < 0.0f) -a else a, b, t))
     }
+    val npq = sqrt(dot(a, a) * dot(b, b))  // ||p|| * ||q||
+    val acos = acos(clamp(absd / npq, -1.0f, 1.0f))
+    val acos0 = acos * (1.0f - t)
+    val acos1 = acos * t
+    val sina = sin(acos)
+    if (sina < valueEps) {
+        return normalize(lerp(a, b, t))
+    }
+    val isina = 1.0f / sina
+    val s0 = sin(acos0) * isina
+    val s1 = sin(acos1) * isina
+    // ensure we're taking the "short" side
+    return normalize(s0 * a + (if (d < 0.0f) -s1 else (s1)) * b)
 }
 
 fun lerp(a: Quaternion, b: Quaternion, t: Float): Quaternion {
-    return ((1.0f - t) * a) + (t * b)
+    return ((1 - t) * a) + (t * b)
 }
 
 fun nlerp(a: Quaternion, b: Quaternion, t: Float): Quaternion {
@@ -497,12 +324,19 @@ fun nlerp(a: Quaternion, b: Quaternion, t: Float): Quaternion {
 }
 
 /**
- * Convert a Quaternion to Euler angles
+ * Convert a Quaternion to Euler angles using YPR around ZYX respectively
  *
- * @param order The order in which to apply rotations.
- * Default is [RotationsOrder.ZYX] which means that the object will first be rotated around its Z
- * axis, then its Y axis and finally its X axis.
+ * The Euler angles are applied in ZYX order
  */
-fun eulerAngles(q: Quaternion, order: RotationsOrder = RotationsOrder.ZYX): Float3 {
-    return eulerAngles(rotation(q), order)
+fun eulerAngles(q: Quaternion): Float3 {
+    val nq = normalize(q)
+    return Float3(
+            // roll (x-axis rotation)
+            degrees(atan2(2.0f * (nq.y * nq.z + nq.w * nq.x),
+                    nq.w * nq.w - nq.x * nq.x - nq.y * nq.y + nq.z * nq.z)),
+            // pitch (y-axis rotation)
+            degrees(asin(-2.0f * (nq.x * nq.z - nq.w * nq.y))),
+            // yaw (z-axis rotation)
+            degrees(atan2(2.0f * (nq.x * nq.y + nq.w * nq.z),
+                    nq.w * nq.w + nq.x * nq.x - nq.y * nq.y - nq.z * nq.z)))
 }

android/filament-utils-android/src/main/java/com/google/android/filament/utils/Scalar.kt

@@ -28,21 +28,12 @@ const val INV_PI      = 1.0f / FPI
 const val INV_TWO_PI  = INV_PI * 0.5f
 const val INV_FOUR_PI = INV_PI * 0.25f
 
-val HALF_ONE = Half(0x3c00.toUShort())
-val HALF_TWO = Half(0x4000.toUShort())
-
-inline fun clamp(x: Float, min: Float, max: Float) = if (x < min) min else (if (x > max) max else x)
-
-inline fun clamp(x: Half, min: Half, max: Half) = if (x < min) min else (if (x > max) max else x)
+inline fun clamp(x: Float, min: Float, max: Float)= if (x < min) min else (if (x > max) max else x)
 
 inline fun saturate(x: Float) = clamp(x, 0.0f, 1.0f)
 
-inline fun saturate(x: Half) = clamp(x, Half.POSITIVE_ZERO, HALF_ONE)
-
 inline fun mix(a: Float, b: Float, x: Float) = a * (1.0f - x) + b * x
 
-inline fun mix(a: Half, b: Half, x: Half) = a * (HALF_ONE - x) + b * x
-
 inline fun degrees(v: Float) = v * (180.0f * INV_PI)
 
 inline fun radians(v: Float) = v * (FPI / 180.0f)
@@ -51,6 +42,4 @@ inline fun fract(v: Float) = v % 1
 
 inline fun sqr(v: Float) = v * v
 
-inline fun sqr(v: Half) = v * v
-
 inline fun pow(x: Float, y: Float) = (x.toDouble().pow(y.toDouble())).toFloat()

android/filament-utils-android/src/main/java/com/google/android/filament/utils/TextureLoader.kt

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.google.android.filament.utils
+package com.google.android.filament.textured
 
 import android.content.res.Resources
 import android.graphics.Bitmap

android/filament-utils-android/src/main/java/com/google/android/filament/utils/Vector.kt

@@ -22,8 +22,6 @@ import kotlin.math.abs
 import kotlin.math.max
 import kotlin.math.min
 import kotlin.math.sqrt
-import kotlin.math.acos
-import kotlin.math.absoluteValue
 
 enum class VectorComponent {
     X, Y, Z, W,
@@ -126,23 +124,11 @@ data class Float2(var x: Float = 0.0f, var y: Float = 0.0f) {
     inline operator fun minus(v: Float) = Float2(x - v, y - v)
     inline operator fun times(v: Float) = Float2(x * v, y * v)
     inline operator fun div(v: Float) = Float2(x / v, y / v)
-    inline fun compareTo(v: Float, delta: Float = 0.0f) = Float2(
-        x.compareTo(v, delta),
-        y.compareTo(v, delta)
-    )
-
-    inline fun equals(v: Float, delta: Float = 0.0f) = x.equals(v, delta) && y.equals(v, delta)
 
     inline operator fun plus(v: Float2) = Float2(x + v.x, y + v.y)
     inline operator fun minus(v: Float2) = Float2(x - v.x, y - v.y)
     inline operator fun times(v: Float2) = Float2(x * v.x, y * v.y)
     inline operator fun div(v: Float2) = Float2(x / v.x, y / v.y)
-    inline fun compareTo(v: Float2, delta: Float = 0.0f) = Float2(
-        x.compareTo(v.x, delta),
-        y.compareTo(v.y, delta)
-    )
-
-    inline fun equals(v: Float2, delta: Float = 0.0f) = x.equals(v.x, delta) && y.equals(v.y, delta)
 
     inline fun transform(block: (Float) -> Float): Float2 {
         x = block(x)
@@ -305,14 +291,6 @@ data class Float3(var x: Float = 0.0f, var y: Float = 0.0f, var z: Float = 0.0f)
     inline operator fun minus(v: Float) = Float3(x - v, y - v, z - v)
     inline operator fun times(v: Float) = Float3(x * v, y * v, z * v)
     inline operator fun div(v: Float) = Float3(x / v, y / v, z / v)
-    inline fun compareTo(v: Float, delta: Float = 0.0f) = Float3(
-        x.compareTo(v, delta),
-        y.compareTo(v, delta),
-        z.compareTo(v, delta)
-    )
-
-    inline fun equals(v: Float, delta: Float = 0.0f) =
-        x.equals(v, delta) && y.equals(v, delta) && z.equals(v, delta)
 
     inline operator fun plus(v: Float2) = Float3(x + v.x, y + v.y, z)
     inline operator fun minus(v: Float2) = Float3(x - v.x, y - v.y, z)
@@ -323,14 +301,6 @@ data class Float3(var x: Float = 0.0f, var y: Float = 0.0f, var z: Float = 0.0f)
     inline operator fun minus(v: Float3) = Float3(x - v.x, y - v.y, z - v.z)
     inline operator fun times(v: Float3) = Float3(x * v.x, y * v.y, z * v.z)
     inline operator fun div(v: Float3) = Float3(x / v.x, y / v.y, z / v.z)
-    inline fun compareTo(v: Float3, delta: Float = 0.0f) = Float3(
-        x.compareTo(v.x, delta),
-        y.compareTo(v.y, delta),
-        z.compareTo(v.z, delta)
-    )
-
-    inline fun equals(v: Float3, delta: Float = 0.0f) =
-        x.equals(v.x, delta) && y.equals(v.y, delta) && z.equals(v.z, delta)
 
     inline fun transform(block: (Float) -> Float): Float3 {
         x = block(x)
@@ -564,15 +534,6 @@ data class Float4(
     inline operator fun minus(v: Float) = Float4(x - v, y - v, z - v, w - v)
     inline operator fun times(v: Float) = Float4(x * v, y * v, z * v, w * v)
     inline operator fun div(v: Float) = Float4(x / v, y / v, z / v, w / v)
-    inline fun compareTo(v: Float, delta: Float = 0.0f) = Float4(
-        x.compareTo(v, delta),
-        y.compareTo(v, delta),
-        z.compareTo(v, delta),
-        w.compareTo(v, delta)
-    )
-
-    inline fun equals(v: Float, delta: Float = 0.0f) =
-        x.equals(v, delta) && y.equals(v, delta) && z.equals(v, delta) && w.equals(v, delta)
 
     inline operator fun plus(v: Float2) = Float4(x + v.x, y + v.y, z, w)
     inline operator fun minus(v: Float2) = Float4(x - v.x, y - v.y, z, w)
@@ -588,15 +549,6 @@ data class Float4(
     inline operator fun minus(v: Float4) = Float4(x - v.x, y - v.y, z - v.z, w - v.w)
     inline operator fun times(v: Float4) = Float4(x * v.x, y * v.y, z * v.z, w * v.w)
     inline operator fun div(v: Float4) = Float4(x / v.x, y / v.y, z / v.z, w / v.w)
-    inline fun compareTo(v: Float4, delta: Float = 0.0f) = Float4(
-        x.compareTo(v.x, delta),
-        y.compareTo(v.y, delta),
-        z.compareTo(v.z, delta),
-        w.compareTo(v.w, delta)
-    )
-
-    inline fun equals(v: Float4, delta: Float = 0.0f) =
-        x.equals(v.x, delta) && y.equals(v.y, delta) && z.equals(v.z, delta) && w.equals(v.w, delta)
 
     inline fun transform(block: (Float) -> Float): Float4 {
         x = block(x)
@@ -614,12 +566,6 @@ inline operator fun Float.minus(v: Float2) = Float2(this - v.x, this - v.y)
 inline operator fun Float.times(v: Float2) = Float2(this * v.x, this * v.y)
 inline operator fun Float.div(v: Float2) = Float2(this / v.x, this / v.y)
 
-inline fun Float.compareTo(v: Float, delta: Float): Float = when {
-    equals(v, delta) -> 0.0f
-    else -> compareTo(v).toFloat()
-}
-
-inline fun Float.equals(v: Float, delta: Float) = (this - v).absoluteValue < delta
 inline fun abs(v: Float2) = Float2(abs(v.x), abs(v.y))
 inline fun length(v: Float2) = sqrt(v.x * v.x + v.y * v.y)
 inline fun length2(v: Float2) = v.x * v.x + v.y * v.y
@@ -637,11 +583,6 @@ fun refract(i: Float2, n: Float2, eta: Float): Float2 {
     return if (k < 0.0f) Float2(0.0f) else eta * i - (eta * d + sqrt(k)) * n
 }
 
-inline fun angle(a: Float2, b: Float2): Float {
-    val l = length(a) * length(b)
-    return if (l == 0.0f) 0.0f else acos(clamp(dot(a, b) / l, -1.0f, 1.0f))
-}
-
 inline fun clamp(v: Float2, min: Float, max: Float): Float2 {
     return Float2(
             clamp(v.x, min, max),
@@ -685,25 +626,10 @@ inline fun greaterThan(a: Float2, b: Float) = Bool2(a.x > b, a.y > b)
 inline fun greaterThan(a: Float2, b: Float2) = Bool2(a.x > b.y, a.y > b.y)
 inline fun greaterThanEqual(a: Float2, b: Float) = Bool2(a.x >= b, a.y >= b)
 inline fun greaterThanEqual(a: Float2, b: Float2) = Bool2(a.x >= b.x, a.y >= b.y)
-inline fun equal(a: Float2, b: Float, delta: Float = 0.0f) = Bool2(
-    a.x.equals(b, delta),
-    a.y.equals(b, delta)
-)
-
-inline fun equal(a: Float2, b: Float2, delta: Float = 0.0f) = Bool2(
-    a.x.equals(b.x, delta),
-    a.y.equals(b.y, delta)
-)
-
-inline fun notEqual(a: Float2, b: Float, delta: Float = 0.0f) = Bool2(
-    !a.x.equals(b, delta),
-    !a.y.equals(b, delta)
-)
-
-inline fun notEqual(a: Float2, b: Float2, delta: Float = 0.0f) = Bool2(
-    !a.x.equals(b.x, delta),
-    !a.y.equals(b.y, delta)
-)
+inline fun equal(a: Float2, b: Float) = Bool2(a.x == b, a.y == b)
+inline fun equal(a: Float2, b: Float2) = Bool2(a.x == b.x, a.y == b.y)
+inline fun notEqual(a: Float2, b: Float) = Bool2(a.x != b, a.y != b)
+inline fun notEqual(a: Float2, b: Float2) = Bool2(a.x != b.x, a.y != b.y)
 
 inline infix fun Float2.lt(b: Float) = Bool2(x < b, y < b)
 inline infix fun Float2.lt(b: Float2) = Bool2(x < b.x, y < b.y)
@@ -749,11 +675,6 @@ fun refract(i: Float3, n: Float3, eta: Float): Float3 {
     return if (k < 0.0f) Float3(0.0f) else eta * i - (eta * d + sqrt(k)) * n
 }
 
-inline fun angle(a: Float3, b: Float3): Float {
-    val l = length(a) * length(b)
-    return if (l == 0.0f) 0.0f else acos(clamp(dot(a, b) / l, -1.0f, 1.0f))
-}
-
 inline fun clamp(v: Float3, min: Float, max: Float): Float3 {
     return Float3(
             clamp(v.x, min, max),
@@ -801,29 +722,10 @@ inline fun greaterThan(a: Float3, b: Float) = Bool3(a.x > b, a.y > b, a.z > b)
 inline fun greaterThan(a: Float3, b: Float3) = Bool3(a.x > b.y, a.y > b.y, a.z > b.z)
 inline fun greaterThanEqual(a: Float3, b: Float) = Bool3(a.x >= b, a.y >= b, a.z >= b)
 inline fun greaterThanEqual(a: Float3, b: Float3) = Bool3(a.x >= b.x, a.y >= b.y, a.z >= b.z)
-inline fun equal(a: Float3, b: Float, delta: Float = 0.0f) = Bool3(
-    a.x.equals(b, delta),
-    a.y.equals(b, delta),
-    a.z.equals(b, delta)
-)
-
-inline fun equal(a: Float3, b: Float3, delta: Float = 0.0f) = Bool3(
-    a.x.equals(b.x, delta),
-    a.y.equals(b.y, delta),
-    a.z.equals(b.z, delta)
-)
-
-inline fun notEqual(a: Float3, b: Float, delta: Float = 0.0f) = Bool3(
-    !a.x.equals(b, delta),
-    !a.y.equals(b, delta),
-    !a.z.equals(b, delta)
-)
-
-inline fun notEqual(a: Float3, b: Float3, delta: Float = 0.0f) = Bool3(
-    !a.x.equals(b.x, delta),
-    !a.y.equals(b.y, delta),
-    !a.z.equals(b.z, delta)
-)
+inline fun equal(a: Float3, b: Float) = Bool3(a.x == b, a.y == b, a.z == b)
+inline fun equal(a: Float3, b: Float3) = Bool3(a.x == b.x, a.y == b.y, a.z == b.z)
+inline fun notEqual(a: Float3, b: Float) = Bool3(a.x != b, a.y != b, a.z != b)
+inline fun notEqual(a: Float3, b: Float3) = Bool3(a.x != b.x, a.y != b.y, a.z != b.z)
 
 inline infix fun Float3.lt(b: Float) = Bool3(x < b, y < b, z < b)
 inline infix fun Float3.lt(b: Float3) = Bool3(x < b.x, y < b.y, z < b.z)
@@ -905,44 +807,17 @@ inline fun transform(v: Float4, block: (Float) -> Float) = v.copy().transform(bl
 inline fun lessThan(a: Float4, b: Float) = Bool4(a.x < b, a.y < b, a.z < b, a.w < b)
 inline fun lessThan(a: Float4, b: Float4) = Bool4(a.x < b.x, a.y < b.y, a.z < b.z, a.w < b.w)
 inline fun lessThanEqual(a: Float4, b: Float) = Bool4(a.x <= b, a.y <= b, a.z <= b, a.w <= b)
-inline fun lessThanEqual(a: Float4, b: Float4) =
-    Bool4(a.x <= b.x, a.y <= b.y, a.z <= b.z, a.w <= b.w)
-
+inline fun lessThanEqual(a: Float4, b: Float4) = Bool4(a.x <= b.x, a.y <= b.y, a.z <= b.z, a.w <= b.w)
 inline fun greaterThan(a: Float4, b: Float) = Bool4(a.x > b, a.y > b, a.z > b, a.w > b)
 inline fun greaterThan(a: Float4, b: Float4) = Bool4(a.x > b.y, a.y > b.y, a.z > b.z, a.w > b.w)
 inline fun greaterThanEqual(a: Float4, b: Float) = Bool4(a.x >= b, a.y >= b, a.z >= b, a.w >= b)
-inline fun greaterThanEqual(a: Float4, b: Float4) =
-    Bool4(a.x >= b.x, a.y >= b.y, a.z >= b.z, a.w >= b.w)
+inline fun greaterThanEqual(a: Float4, b: Float4) = Bool4(a.x >= b.x, a.y >= b.y, a.z >= b.z, a.w >= b.w)
+inline fun equal(a: Float4, b: Float) = Bool4(a.x == b, a.y == b, a.z == b, a.w == b)
+inline fun equal(a: Float4, b: Float4) = Bool4(a.x == b.x, a.y == b.y, a.z == b.z, a.w == b.w)
+inline fun notEqual(a: Float4, b: Float) = Bool4(a.x != b, a.y != b, a.z != b, a.w != b)
+inline fun notEqual(a: Float4, b: Float4) = Bool4(a.x != b.x, a.y != b.y, a.z != b.z, a.w != b.w)
 
-inline fun equal(a: Float4, b: Float, delta: Float = 0.0f) = Bool4(
-    a.x.equals(b, delta),
-    a.y.equals(b, delta),
-    a.z.equals(b, delta),
-    a.w.equals(b, delta)
-)
-
-inline fun equal(a: Float4, b: Float4, delta: Float = 0.0f) = Bool4(
-    a.x.equals(b.x, delta),
-    a.y.equals(b.y, delta),
-    a.z.equals(b.z, delta),
-    a.w.equals(b.w, delta)
-)
-
-inline fun notEqual(a: Float4, b: Float, delta: Float = 0.0f) = Bool4(
-    !a.x.equals(b, delta),
-    !a.y.equals(b, delta),
-    !a.z.equals(b, delta),
-    !a.w.equals(b, delta)
-)
-
-inline fun notEqual(a: Float4, b: Float4, delta: Float = 0.0f) = Bool4(
-    !a.x.equals(b.x, delta),
-    !a.y.equals(b.y, delta),
-    !a.z.equals(b.z, delta),
-    !a.w.equals(b.w, delta)
-)
-
-inline infix fun Float4.lt(b: Float) = Bool4(x < b, y < b, z < b, w < b)
+inline infix fun Float4.lt(b: Float) = Bool4(x < b, y < b, z < b, a < b)
 inline infix fun Float4.lt(b: Float4) = Bool4(x < b.x, y < b.y, z < b.z, w < b.w)
 inline infix fun Float4.lte(b: Float) = Bool4(x <= b, y <= b, z <= b, w <= b)
 inline infix fun Float4.lte(b: Float4) = Bool4(x <= b.x, y <= b.y, z <= b.z, w <= b.w)
@@ -1402,753 +1277,3 @@ data class Bool4(
         set(index4, v)
     }
 }
-
-data class Half2(var x: Half = Half.POSITIVE_ZERO, var y: Half = Half.POSITIVE_ZERO) {
-    constructor(v: Half) : this(v, v)
-    constructor(v: Half2) : this(v.x, v.y)
-
-    inline var r: Half
-        get() = x
-        set(value) {
-            x = value
-        }
-    inline var g: Half
-        get() = y
-        set(value) {
-            y = value
-        }
-
-    inline var s: Half
-        get() = x
-        set(value) {
-            x = value
-        }
-    inline var t: Half
-        get() = y
-        set(value) {
-            y = value
-        }
-
-    inline var xy: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-    inline var rg: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-    inline var st: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-
-    operator fun get(index: VectorComponent) = when (index) {
-        VectorComponent.X, VectorComponent.R, VectorComponent.S -> x
-        VectorComponent.Y, VectorComponent.G, VectorComponent.T -> y
-        else -> throw IllegalArgumentException("index must be X, Y, R, G, S or T")
-    }
-
-    operator fun get(index1: VectorComponent, index2: VectorComponent): Half2 {
-        return Half2(get(index1), get(index2))
-    }
-
-    operator fun get(index: Int) = when (index) {
-        0 -> x
-        1 -> y
-        else -> throw IllegalArgumentException("index must be in 0..1")
-    }
-
-    operator fun get(index1: Int, index2: Int) = Half2(get(index1), get(index2))
-
-    inline operator fun invoke(index: Int) = get(index - 1)
-
-    operator fun set(index: Int, v: Half) = when (index) {
-        0 -> x = v
-        1 -> y = v
-        else -> throw IllegalArgumentException("index must be in 0..1")
-    }
-
-    operator fun set(index1: Int, index2: Int, v: Half) {
-        set(index1, v)
-        set(index2, v)
-    }
-
-    operator fun set(index: VectorComponent, v: Half) = when (index) {
-        VectorComponent.X, VectorComponent.R, VectorComponent.S -> x = v
-        VectorComponent.Y, VectorComponent.G, VectorComponent.T -> y = v
-        else -> throw IllegalArgumentException("index must be X, Y, R, G, S or T")
-    }
-
-    operator fun set(index1: VectorComponent, index2: VectorComponent, v: Half) {
-        set(index1, v)
-        set(index2, v)
-    }
-
-    operator fun unaryMinus() = Half2(-x, -y)
-    operator fun inc() = Half2(x++, y++)
-    operator fun dec() = Half2(x--, y--)
-
-    inline operator fun plus(v: Half) = Half2(x + v, y + v)
-    inline operator fun minus(v: Half) = Half2(x - v, y - v)
-    inline operator fun times(v: Half) = Half2(x * v, y * v)
-    inline operator fun div(v: Half) = Half2(x / v, y / v)
-
-    inline operator fun plus(v: Half2) = Half2(x + v.x, y + v.y)
-    inline operator fun minus(v: Half2) = Half2(x - v.x, y - v.y)
-    inline operator fun times(v: Half2) = Half2(x * v.x, y * v.y)
-    inline operator fun div(v: Half2) = Half2(x / v.x, y / v.y)
-
-    inline fun transform(block: (Half) -> Half): Half2 {
-        x = block(x)
-        y = block(y)
-        return this
-    }
-
-    fun toFloatArray() = floatArrayOf(x.toFloat(), y.toFloat())
-}
-
-data class Half3(
-    var x: Half = Half.POSITIVE_ZERO,
-    var y: Half = Half.POSITIVE_ZERO,
-    var z: Half = Half.POSITIVE_ZERO
-) {
-    constructor(v: Half) : this(v, v, v)
-    constructor(v: Half2, z: Half = Half.POSITIVE_ZERO) : this(v.x, v.y, z)
-    constructor(v: Half3) : this(v.x, v.y, v.z)
-
-    inline var r: Half
-        get() = x
-        set(value) {
-            x = value
-        }
-    inline var g: Half
-        get() = y
-        set(value) {
-            y = value
-        }
-    inline var b: Half
-        get() = z
-        set(value) {
-            z = value
-        }
-
-    inline var s: Half
-        get() = x
-        set(value) {
-            x = value
-        }
-    inline var t: Half
-        get() = y
-        set(value) {
-            y = value
-        }
-    inline var p: Half
-        get() = z
-        set(value) {
-            z = value
-        }
-
-    inline var xy: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-    inline var rg: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-    inline var st: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-
-    inline var rgb: Half3
-        get() = Half3(x, y, z)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-        }
-    inline var xyz: Half3
-        get() = Half3(x, y, z)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-        }
-    inline var stp: Half3
-        get() = Half3(x, y, z)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-        }
-
-    operator fun get(index: VectorComponent) = when (index) {
-        VectorComponent.X, VectorComponent.R, VectorComponent.S -> x
-        VectorComponent.Y, VectorComponent.G, VectorComponent.T -> y
-        VectorComponent.Z, VectorComponent.B, VectorComponent.P -> z
-        else -> throw IllegalArgumentException("index must be X, Y, Z, R, G, B, S, T or P")
-    }
-
-    operator fun get(index1: VectorComponent, index2: VectorComponent): Half2 {
-        return Half2(get(index1), get(index2))
-    }
-    operator fun get(
-        index1: VectorComponent, index2: VectorComponent, index3: VectorComponent): Half3 {
-        return Half3(get(index1), get(index2), get(index3))
-    }
-
-    operator fun get(index: Int) = when (index) {
-        0 -> x
-        1 -> y
-        2 -> z
-        else -> throw IllegalArgumentException("index must be in 0..2")
-    }
-
-    operator fun get(index1: Int, index2: Int) = Half2(get(index1), get(index2))
-    operator fun get(index1: Int, index2: Int, index3: Int): Half3 {
-        return Half3(get(index1), get(index2), get(index3))
-    }
-
-    inline operator fun invoke(index: Int) = get(index - 1)
-
-    operator fun set(index: Int, v: Half) = when (index) {
-        0 -> x = v
-        1 -> y = v
-        2 -> z = v
-        else -> throw IllegalArgumentException("index must be in 0..2")
-    }
-
-    operator fun set(index1: Int, index2: Int, v: Half) {
-        set(index1, v)
-        set(index2, v)
-    }
-
-    operator fun set(index1: Int, index2: Int, index3: Int, v: Half) {
-        set(index1, v)
-        set(index2, v)
-        set(index3, v)
-    }
-
-    operator fun set(index: VectorComponent, v: Half) = when (index) {
-        VectorComponent.X, VectorComponent.R, VectorComponent.S -> x = v
-        VectorComponent.Y, VectorComponent.G, VectorComponent.T -> y = v
-        VectorComponent.Z, VectorComponent.B, VectorComponent.P -> z = v
-        else -> throw IllegalArgumentException("index must be X, Y, Z, R, G, B, S, T or P")
-    }
-
-    operator fun set(index1: VectorComponent, index2: VectorComponent, v: Half) {
-        set(index1, v)
-        set(index2, v)
-    }
-
-    operator fun set(
-        index1: VectorComponent, index2: VectorComponent, index3: VectorComponent, v: Half) {
-        set(index1, v)
-        set(index2, v)
-        set(index3, v)
-    }
-
-    operator fun unaryMinus() = Half3(-x, -y, -z)
-    operator fun inc() = Half3(x++, y++, z++)
-    operator fun dec() = Half3(x--, y--, z--)
-
-    inline operator fun plus(v: Half) = Half3(x + v, y + v, z + v)
-    inline operator fun minus(v: Half) = Half3(x - v, y - v, z - v)
-    inline operator fun times(v: Half) = Half3(x * v, y * v, z * v)
-    inline operator fun div(v: Half) = Half3(x / v, y / v, z / v)
-
-    inline operator fun plus(v: Half2) = Half3(x + v.x, y + v.y, z)
-    inline operator fun minus(v: Half2) = Half3(x - v.x, y - v.y, z)
-    inline operator fun times(v: Half2) = Half3(x * v.x, y * v.y, z)
-    inline operator fun div(v: Half2) = Half3(x / v.x, y / v.y, z)
-
-    inline operator fun plus(v: Half3) = Half3(x + v.x, y + v.y, z + v.z)
-    inline operator fun minus(v: Half3) = Half3(x - v.x, y - v.y, z - v.z)
-    inline operator fun times(v: Half3) = Half3(x * v.x, y * v.y, z * v.z)
-    inline operator fun div(v: Half3) = Half3(x / v.x, y / v.y, z / v.z)
-
-    inline fun transform(block: (Half) -> Half): Half3 {
-        x = block(x)
-        y = block(y)
-        z = block(z)
-        return this
-    }
-
-    fun toFloatArray() = floatArrayOf(x.toFloat(), y.toFloat(), z.toFloat())
-}
-
-data class Half4(
-    var x: Half = Half.POSITIVE_ZERO,
-    var y: Half = Half.POSITIVE_ZERO,
-    var z: Half = Half.POSITIVE_ZERO,
-    var w: Half = Half.POSITIVE_ZERO
-) {
-    constructor(v: Half) : this(v, v, v, v)
-    constructor(v: Half2, z: Half = Half.POSITIVE_ZERO, w: Half = Half.POSITIVE_ZERO) : this(v.x, v.y, z, w)
-    constructor(v: Half3, w: Half = Half.POSITIVE_ZERO) : this(v.x, v.y, v.z, w)
-    constructor(v: Half4) : this(v.x, v.y, v.z, v.w)
-
-    inline var r: Half
-        get() = x
-        set(value) {
-            x = value
-        }
-    inline var g: Half
-        get() = y
-        set(value) {
-            y = value
-        }
-    inline var b: Half
-        get() = z
-        set(value) {
-            z = value
-        }
-    inline var a: Half
-        get() = w
-        set(value) {
-            w = value
-        }
-
-    inline var s: Half
-        get() = x
-        set(value) {
-            x = value
-        }
-    inline var t: Half
-        get() = y
-        set(value) {
-            y = value
-        }
-    inline var p: Half
-        get() = z
-        set(value) {
-            z = value
-        }
-    inline var q: Half
-        get() = w
-        set(value) {
-            w = value
-        }
-
-    inline var xy: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-    inline var rg: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-    inline var st: Half2
-        get() = Half2(x, y)
-        set(value) {
-            x = value.x
-            y = value.y
-        }
-
-    inline var rgb: Half3
-        get() = Half3(x, y, z)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-        }
-    inline var xyz: Half3
-        get() = Half3(x, y, z)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-        }
-    inline var stp: Half3
-        get() = Half3(x, y, z)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-        }
-
-    inline var rgba: Half4
-        get() = Half4(x, y, z, w)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-            w = value.w
-        }
-    inline var xyzw: Half4
-        get() = Half4(x, y, z, w)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-            w = value.w
-        }
-    inline var stpq: Half4
-        get() = Half4(x, y, z, w)
-        set(value) {
-            x = value.x
-            y = value.y
-            z = value.z
-            w = value.w
-        }
-
-    operator fun get(index: VectorComponent) = when (index) {
-        VectorComponent.X, VectorComponent.R, VectorComponent.S -> x
-        VectorComponent.Y, VectorComponent.G, VectorComponent.T -> y
-        VectorComponent.Z, VectorComponent.B, VectorComponent.P -> z
-        VectorComponent.W, VectorComponent.A, VectorComponent.Q -> w
-    }
-
-    operator fun get(index1: VectorComponent, index2: VectorComponent): Half2 {
-        return Half2(get(index1), get(index2))
-    }
-    operator fun get(
-        index1: VectorComponent,
-        index2: VectorComponent,
-        index3: VectorComponent): Half3 {
-        return Half3(get(index1), get(index2), get(index3))
-    }
-    operator fun get(
-        index1: VectorComponent,
-        index2: VectorComponent,
-        index3: VectorComponent,
-        index4: VectorComponent): Half4 {
-        return Half4(get(index1), get(index2), get(index3), get(index4))
-    }
-
-    operator fun get(index: Int) = when (index) {
-        0 -> x
-        1 -> y
-        2 -> z
-        3 -> w
-        else -> throw IllegalArgumentException("index must be in 0..3")
-    }
-
-    operator fun get(index1: Int, index2: Int) = Half2(get(index1), get(index2))
-    operator fun get(index1: Int, index2: Int, index3: Int): Half3 {
-        return Half3(get(index1), get(index2), get(index3))
-    }
-    operator fun get(index1: Int, index2: Int, index3: Int, index4: Int): Half4 {
-        return Half4(get(index1), get(index2), get(index3), get(index4))
-    }
-
-    inline operator fun invoke(index: Int) = get(index - 1)
-
-    operator fun set(index: Int, v: Half) = when (index) {
-        0 -> x = v
-        1 -> y = v
-        2 -> z = v
-        3 -> w = v
-        else -> throw IllegalArgumentException("index must be in 0..3")
-    }
-
-    operator fun set(index1: Int, index2: Int, v: Half) {
-        set(index1, v)
-        set(index2, v)
-    }
-
-    operator fun set(index1: Int, index2: Int, index3: Int, v: Half) {
-        set(index1, v)
-        set(index2, v)
-        set(index3, v)
-    }
-
-    operator fun set(index1: Int, index2: Int, index3: Int, index4: Int, v: Half) {
-        set(index1, v)
-        set(index2, v)
-        set(index3, v)
-        set(index4, v)
-    }
-
-    operator fun set(index: VectorComponent, v: Half) = when (index) {
-        VectorComponent.X, VectorComponent.R, VectorComponent.S -> x = v
-        VectorComponent.Y, VectorComponent.G, VectorComponent.T -> y = v
-        VectorComponent.Z, VectorComponent.B, VectorComponent.P -> z = v
-        VectorComponent.W, VectorComponent.A, VectorComponent.Q -> w = v
-    }
-
-    operator fun set(index1: VectorComponent, index2: VectorComponent, v: Half) {
-        set(index1, v)
-        set(index2, v)
-    }
-
-    operator fun set(
-        index1: VectorComponent, index2: VectorComponent, index3: VectorComponent, v: Half) {
-        set(index1, v)
-        set(index2, v)
-        set(index3, v)
-    }
-
-    operator fun set(
-        index1: VectorComponent, index2: VectorComponent,
-        index3: VectorComponent, index4: VectorComponent, v: Half) {
-        set(index1, v)
-        set(index2, v)
-        set(index3, v)
-        set(index4, v)
-    }
-
-    operator fun unaryMinus() = Half4(-x, -y, -z, -w)
-    operator fun inc() = Half4(x++, y++, z++, w++)
-    operator fun dec() = Half4(x--, y--, z--, w--)
-
-    inline operator fun plus(v: Half) = Half4(x + v, y + v, z + v, w + v)
-    inline operator fun minus(v: Half) = Half4(x - v, y - v, z - v, w - v)
-    inline operator fun times(v: Half) = Half4(x * v, y * v, z * v, w * v)
-    inline operator fun div(v: Half) = Half4(x / v, y / v, z / v, w / v)
-
-    inline operator fun plus(v: Half2) = Half4(x + v.x, y + v.y, z, w)
-    inline operator fun minus(v: Half2) = Half4(x - v.x, y - v.y, z, w)
-    inline operator fun times(v: Half2) = Half4(x * v.x, y * v.y, z, w)
-    inline operator fun div(v: Half2) = Half4(x / v.x, y / v.y, z, w)
-
-    inline operator fun plus(v: Half3) = Half4(x + v.x, y + v.y, z + v.z, w)
-    inline operator fun minus(v: Half3) = Half4(x - v.x, y - v.y, z - v.z, w)
-    inline operator fun times(v: Half3) = Half4(x * v.x, y * v.y, z * v.z, w)
-    inline operator fun div(v: Half3) = Half4(x / v.x, y / v.y, z / v.z, w)
-
-    inline operator fun plus(v: Half4) = Half4(x + v.x, y + v.y, z + v.z, w + v.w)
-    inline operator fun minus(v: Half4) = Half4(x - v.x, y - v.y, z - v.z, w - v.w)
-    inline operator fun times(v: Half4) = Half4(x * v.x, y * v.y, z * v.z, w * v.w)
-    inline operator fun div(v: Half4) = Half4(x / v.x, y / v.y, z / v.z, w / v.w)
-
-    inline fun transform(block: (Half) -> Half): Half4 {
-        x = block(x)
-        y = block(y)
-        z = block(z)
-        w = block(w)
-        return this
-    }
-
-    fun toFloatArray() = floatArrayOf(x.toFloat(), y.toFloat(), z.toFloat(), w.toFloat())
-}
-
-inline fun min(v: Half2) = min(v.x, v.y)
-inline fun min(a: Half2, b: Half2) = Half2(min(a.x, b.x), min(a.y, b.y))
-inline fun max(v: Half2) = max(v.x, v.y)
-inline fun max(a: Half2, b: Half2) = Half2(max(a.x, b.x), max(a.y, b.y))
-
-inline fun transform(v: Half2, block: (Half) -> Half) = v.copy().transform(block)
-
-inline fun lessThan(a: Half2, b: Half) = Bool2(a.x < b, a.y < b)
-inline fun lessThan(a: Half2, b: Half2) = Bool2(a.x < b.x, a.y < b.y)
-inline fun lessThanEqual(a: Half2, b: Half) = Bool2(a.x <= b, a.y <= b)
-inline fun lessThanEqual(a: Half2, b: Half2) = Bool2(a.x <= b.x, a.y <= b.y)
-inline fun greaterThan(a: Half2, b: Half) = Bool2(a.x > b, a.y > b)
-inline fun greaterThan(a: Half2, b: Half2) = Bool2(a.x > b.y, a.y > b.y)
-inline fun greaterThanEqual(a: Half2, b: Half) = Bool2(a.x >= b, a.y >= b)
-inline fun greaterThanEqual(a: Half2, b: Half2) = Bool2(a.x >= b.x, a.y >= b.y)
-inline fun equal(a: Half2, b: Half) = Bool2(a.x == b, a.y == b)
-inline fun equal(a: Half2, b: Half2) = Bool2(a.x == b.x, a.y == b.y)
-inline fun notEqual(a: Half2, b: Half) = Bool2(a.x != b, a.y != b)
-inline fun notEqual(a: Half2, b: Half2) = Bool2(a.x != b.x, a.y != b.y)
-
-inline infix fun Half2.lt(b: Half) = Bool2(x < b, y < b)
-inline infix fun Half2.lt(b: Half2) = Bool2(x < b.x, y < b.y)
-inline infix fun Half2.lte(b: Half) = Bool2(x <= b, y <= b)
-inline infix fun Half2.lte(b: Half2) = Bool2(x <= b.x, y <= b.y)
-inline infix fun Half2.gt(b: Half) = Bool2(x > b, y > b)
-inline infix fun Half2.gt(b: Half2) = Bool2(x > b.x, y > b.y)
-inline infix fun Half2.gte(b: Half) = Bool2(x >= b, y >= b)
-inline infix fun Half2.gte(b: Half2) = Bool2(x >= b.x, y >= b.y)
-inline infix fun Half2.eq(b: Half) = Bool2(x == b, y == b)
-inline infix fun Half2.eq(b: Half2) = Bool2(x == b.x, y == b.y)
-inline infix fun Half2.neq(b: Half) = Bool2(x != b, y != b)
-inline infix fun Half2.neq(b: Half2) = Bool2(x != b.x, y != b.y)
-
-inline operator fun Half.plus(v: Half3) = Half3(this + v.x, this + v.y, this + v.z)
-inline operator fun Half.minus(v: Half3) = Half3(this - v.x, this - v.y, this - v.z)
-inline operator fun Half.times(v: Half3) = Half3(this * v.x, this * v.y, this * v.z)
-inline operator fun Half.div(v: Half3) = Half3(this / v.x, this / v.y, this / v.z)
-
-inline fun abs(v: Half3) = Half3(abs(v.x), abs(v.y), abs(v.z))
-inline fun length(v: Half3) = sqrt(v.x * v.x + v.y * v.y + v.z * v.z)
-inline fun length2(v: Half3) = v.x * v.x + v.y * v.y + v.z * v.z
-inline fun distance(a: Half3, b: Half3) = length(a - b)
-inline fun dot(a: Half3, b: Half3) = a.x * b.x + a.y * b.y + a.z * b.z
-inline fun cross(a: Half3, b: Half3): Half3 {
-    return Half3(a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x)
-}
-inline infix fun Half3.x(v: Half3): Half3 {
-    return Half3(y * v.z - z * v.y, z * v.x - x * v.z, x * v.y - y * v.x)
-}
-fun normalize(v: Half3): Half3 {
-    val l = HALF_ONE / length(v)
-    return Half3(v.x * l, v.y * l, v.z * l)
-}
-
-inline fun reflect(i: Half3, n: Half3) = i - HALF_TWO * dot(n, i) * n
-fun refract(i: Half3, n: Half3, eta: Half): Half3 {
-    val d = dot(n, i)
-    val k = HALF_ONE - eta * eta * (HALF_ONE - sqr(d))
-    return if (k < Half.POSITIVE_ZERO) Half3() else eta * i - (eta * d + sqrt(k)) * n
-}
-
-inline fun clamp(v: Half3, min: Half, max: Half): Half3 {
-    return Half3(
-        clamp(v.x, min, max),
-        clamp(v.y, min, max),
-        clamp(v.z, min, max)
-    )
-}
-
-inline fun clamp(v: Half3, min: Half3, max: Half3): Half3 {
-    return Half3(
-        clamp(v.x, min.x, max.x),
-        clamp(v.y, min.y, max.y),
-        clamp(v.z, min.z, max.z)
-    )
-}
-
-inline fun mix(a: Half3, b: Half3, x: Half): Half3 {
-    return Half3(
-        mix(a.x, b.x, x),
-        mix(a.y, b.y, x),
-        mix(a.z, b.z, x)
-    )
-}
-
-inline fun mix(a: Half3, b: Half3, x: Half3): Half3 {
-    return Half3(
-        mix(a.x, b.x, x.x),
-        mix(a.y, b.y, x.y),
-        mix(a.z, b.z, x.z)
-    )
-}
-
-inline fun min(v: Half3) = min(v.x, min(v.y, v.z))
-inline fun min(a: Half3, b: Half3) = Half3(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z))
-inline fun max(v: Half3) = max(v.x, max(v.y, v.z))
-inline fun max(a: Half3, b: Half3) = Half3(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z))
-
-inline fun transform(v: Half3, block: (Half) -> Half) = v.copy().transform(block)
-
-inline fun lessThan(a: Half3, b: Half) = Bool3(a.x < b, a.y < b, a.z < b)
-inline fun lessThan(a: Half3, b: Half3) = Bool3(a.x < b.x, a.y < b.y, a.z < b.z)
-inline fun lessThanEqual(a: Half3, b: Half) = Bool3(a.x <= b, a.y <= b, a.z <= b)
-inline fun lessThanEqual(a: Half3, b: Half3) = Bool3(a.x <= b.x, a.y <= b.y, a.z <= b.z)
-inline fun greaterThan(a: Half3, b: Half) = Bool3(a.x > b, a.y > b, a.z > b)
-inline fun greaterThan(a: Half3, b: Half3) = Bool3(a.x > b.y, a.y > b.y, a.z > b.z)
-inline fun greaterThanEqual(a: Half3, b: Half) = Bool3(a.x >= b, a.y >= b, a.z >= b)
-inline fun greaterThanEqual(a: Half3, b: Half3) = Bool3(a.x >= b.x, a.y >= b.y, a.z >= b.z)
-inline fun equal(a: Half3, b: Half) = Bool3(a.x == b, a.y == b, a.z == b)
-inline fun equal(a: Half3, b: Half3) = Bool3(a.x == b.x, a.y == b.y, a.z == b.z)
-inline fun notEqual(a: Half3, b: Half) = Bool3(a.x != b, a.y != b, a.z != b)
-inline fun notEqual(a: Half3, b: Half3) = Bool3(a.x != b.x, a.y != b.y, a.z != b.z)
-
-inline infix fun Half3.lt(b: Half) = Bool3(x < b, y < b, z < b)
-inline infix fun Half3.lt(b: Half3) = Bool3(x < b.x, y < b.y, z < b.z)
-inline infix fun Half3.lte(b: Half) = Bool3(x <= b, y <= b, z <= b)
-inline infix fun Half3.lte(b: Half3) = Bool3(x <= b.x, y <= b.y, z <= b.z)
-inline infix fun Half3.gt(b: Half) = Bool3(x > b, y > b, z > b)
-inline infix fun Half3.gt(b: Half3) = Bool3(x > b.x, y > b.y, z > b.z)
-inline infix fun Half3.gte(b: Half) = Bool3(x >= b, y >= b, z >= b)
-inline infix fun Half3.gte(b: Half3) = Bool3(x >= b.x, y >= b.y, z >= b.z)
-inline infix fun Half3.eq(b: Half) = Bool3(x == b, y == b, z == b)
-inline infix fun Half3.eq(b: Half3) = Bool3(x == b.x, y == b.y, z == b.z)
-inline infix fun Half3.neq(b: Half) = Bool3(x != b, y != b, z != b)
-inline infix fun Half3.neq(b: Half3) = Bool3(x != b.x, y != b.y, z != b.z)
-
-inline operator fun Half.plus(v: Half4) = Half4(this + v.x, this + v.y, this + v.z, this + v.w)
-inline operator fun Half.minus(v: Half4) = Half4(this - v.x, this - v.y, this - v.z, this - v.w)
-inline operator fun Half.times(v: Half4) = Half4(this * v.x, this * v.y, this * v.z, this * v.w)
-inline operator fun Half.div(v: Half4) = Half4(this / v.x, this / v.y, this / v.z, this / v.w)
-
-inline fun abs(v: Half4) = Half4(abs(v.x), abs(v.y), abs(v.z), abs(v.w))
-inline fun length(v: Half4) = sqrt(v.x * v.x + v.y * v.y + v.z * v.z + v.w * v.w)
-inline fun length2(v: Half4) = v.x * v.x + v.y * v.y + v.z * v.z + v.w * v.w
-inline fun distance(a: Half4, b: Half4) = length(a - b)
-inline fun dot(a: Half4, b: Half4) = a.x * b.x + a.y * b.y + a.z * b.z + a.w * b.w
-fun normalize(v: Half4): Half4 {
-    val l = HALF_ONE / length(v)
-    return Half4(v.x * l, v.y * l, v.z * l, v.w * l)
-}
-
-inline fun clamp(v: Half4, min: Half, max: Half): Half4 {
-    return Half4(
-        clamp(v.x, min, max),
-        clamp(v.y, min, max),
-        clamp(v.z, min, max),
-        clamp(v.w, min, max)
-    )
-}
-
-inline fun clamp(v: Half4, min: Half4, max: Half4): Half4 {
-    return Half4(
-        clamp(v.x, min.x, max.x),
-        clamp(v.y, min.y, max.y),
-        clamp(v.z, min.z, max.z),
-        clamp(v.w, min.z, max.w)
-    )
-}
-
-inline fun mix(a: Half4, b: Half4, x: Half): Half4 {
-    return Half4(
-        mix(a.x, b.x, x),
-        mix(a.y, b.y, x),
-        mix(a.z, b.z, x),
-        mix(a.w, b.w, x)
-    )
-}
-
-inline fun mix(a: Half4, b: Half4, x: Half4): Half4 {
-    return Half4(
-        mix(a.x, b.x, x.x),
-        mix(a.y, b.y, x.y),
-        mix(a.z, b.z, x.z),
-        mix(a.w, b.w, x.w))
-}
-
-inline fun min(v: Half4) = min(v.x, min(v.y, min(v.z, v.w)))
-inline fun min(a: Half4, b: Half4): Half4 {
-    return Half4(min(a.x, b.x), min(a.y, b.y), min(a.z, b.z), min(a.w, b.w))
-}
-inline fun max(v: Half4) = max(v.x, max(v.y, max(v.z, v.w)))
-inline fun max(a: Half4, b: Half4): Half4 {
-    return Half4(max(a.x, b.x), max(a.y, b.y), max(a.z, b.z), max(a.w, b.w))
-}
-
-inline fun transform(v: Half4, block: (Half) -> Half) = v.copy().transform(block)
-
-inline fun lessThan(a: Half4, b: Half) = Bool4(a.x < b, a.y < b, a.z < b, a.w < b)
-inline fun lessThan(a: Half4, b: Half4) = Bool4(a.x < b.x, a.y < b.y, a.z < b.z, a.w < b.w)
-inline fun lessThanEqual(a: Half4, b: Half) = Bool4(a.x <= b, a.y <= b, a.z <= b, a.w <= b)
-inline fun lessThanEqual(a: Half4, b: Half4) = Bool4(a.x <= b.x, a.y <= b.y, a.z <= b.z, a.w <= b.w)
-inline fun greaterThan(a: Half4, b: Half) = Bool4(a.x > b, a.y > b, a.z > b, a.w > b)
-inline fun greaterThan(a: Half4, b: Half4) = Bool4(a.x > b.y, a.y > b.y, a.z > b.z, a.w > b.w)
-inline fun greaterThanEqual(a: Half4, b: Half) = Bool4(a.x >= b, a.y >= b, a.z >= b, a.w >= b)
-inline fun greaterThanEqual(a: Half4, b: Half4) = Bool4(a.x >= b.x, a.y >= b.y, a.z >= b.z, a.w >= b.w)
-inline fun equal(a: Half4, b: Half) = Bool4(a.x == b, a.y == b, a.z == b, a.w == b)
-inline fun equal(a: Half4, b: Half4) = Bool4(a.x == b.x, a.y == b.y, a.z == b.z, a.w == b.w)
-inline fun notEqual(a: Half4, b: Half) = Bool4(a.x != b, a.y != b, a.z != b, a.w != b)
-inline fun notEqual(a: Half4, b: Half4) = Bool4(a.x != b.x, a.y != b.y, a.z != b.z, a.w != b.w)
-
-inline infix fun Half4.lt(b: Half) = Bool4(x < b, y < b, z < b, a < b)
-inline infix fun Half4.lt(b: Half4) = Bool4(x < b.x, y < b.y, z < b.z, w < b.w)
-inline infix fun Half4.lte(b: Half) = Bool4(x <= b, y <= b, z <= b, w <= b)
-inline infix fun Half4.lte(b: Half4) = Bool4(x <= b.x, y <= b.y, z <= b.z, w <= b.w)
-inline infix fun Half4.gt(b: Half) = Bool4(x > b, y > b, z > b, w > b)
-inline infix fun Half4.gt(b: Half4) = Bool4(x > b.x, y > b.y, z > b.z, w > b.w)
-inline infix fun Half4.gte(b: Half) = Bool4(x >= b, y >= b, z >= b, w >= b)
-inline infix fun Half4.gte(b: Half4) = Bool4(x >= b.x, y >= b.y, z >= b.z, w >= b.w)
-inline infix fun Half4.eq(b: Half) = Bool4(x == b, y == b, z == b, w == b)
-inline infix fun Half4.eq(b: Half4) = Bool4(x == b.x, y == b.y, z == b.z, w == b.w)
-inline infix fun Half4.neq(b: Half) = Bool4(x != b, y != b, z != b, w != b)
-inline infix fun Half4.neq(b: Half4) = Bool4(x != b.x, y != b.y, z != b.z, w != b.w)

android/gltfio-android/CMakeLists.txt

@@ -52,7 +52,6 @@ set(GLTFIO_SRCS
         ${GLTFIO_DIR}/include/gltfio/FilamentInstance.h
         ${GLTFIO_DIR}/include/gltfio/MaterialProvider.h
         ${GLTFIO_DIR}/include/gltfio/NodeManager.h
-        ${GLTFIO_DIR}/include/gltfio/TrsTransformManager.h
         ${GLTFIO_DIR}/include/gltfio/ResourceLoader.h
         ${GLTFIO_DIR}/include/gltfio/TextureProvider.h
         ${GLTFIO_DIR}/include/gltfio/math.h
@@ -70,12 +69,10 @@ set(GLTFIO_SRCS
         ${GLTFIO_DIR}/src/FilamentAsset.cpp
         ${GLTFIO_DIR}/src/FilamentInstance.cpp
         ${GLTFIO_DIR}/src/FNodeManager.h
-        ${GLTFIO_DIR}/src/FTrsTransformManager.h
         ${GLTFIO_DIR}/src/GltfEnums.h
         ${GLTFIO_DIR}/src/Ktx2Provider.cpp
         ${GLTFIO_DIR}/src/MaterialProvider.cpp
         ${GLTFIO_DIR}/src/NodeManager.cpp
-        ${GLTFIO_DIR}/src/TrsTransformManager.cpp
         ${GLTFIO_DIR}/src/ResourceLoader.cpp
         ${GLTFIO_DIR}/src/StbProvider.cpp
         ${GLTFIO_DIR}/src/TangentsJob.cpp

android/gltfio-android/build.gradle

@@ -16,13 +16,6 @@ android {
             excludes += ['lib/*/libfilament-jni.so']
         }
     }
-
-    publishing {
-        singleVariant("fullRelease") {
-            withSourcesJar()
-            withJavadocJar()
-        }
-    }
 }
 
 dependencies {

android/gltfio-android/src/main/java/com/google/android/filament/gltfio/MaterialProvider.java

@@ -28,81 +28,47 @@ import com.google.android.filament.proguard.UsedByNative;
 
 @UsedByNative("AssetLoader.cpp")
 public interface MaterialProvider {
+
     /**
      * MaterialKey specifies the requirements for a requested glTF material.
      * The provider creates Filament materials that fulfill these requirements.
      */
     @UsedByNative("MaterialKey.cpp")
     public static class MaterialKey {
-        @UsedByNative("MaterialKey.cpp")
         public boolean doubleSided;
-        @UsedByNative("MaterialKey.cpp")
         public boolean unlit;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasVertexColors;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasBaseColorTexture;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasNormalTexture;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasOcclusionTexture;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasEmissiveTexture;
-        @UsedByNative("MaterialKey.cpp")
         public boolean useSpecularGlossiness;
-        @UsedByNative("MaterialKey.cpp")
         public int alphaMode;                       // 0 = OPAQUE, 1 = MASK, 2 = BLEND
-        @UsedByNative("MaterialKey.cpp")
         public boolean enableDiagnostics;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasMetallicRoughnessTexture; // piggybacks with specularRoughness
-        @UsedByNative("MaterialKey.cpp")
         public int metallicRoughnessUV;             // piggybacks with specularRoughness
-        @UsedByNative("MaterialKey.cpp")
         public int baseColorUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasClearCoatTexture;
-        @UsedByNative("MaterialKey.cpp")
         public int clearCoatUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasClearCoatRoughnessTexture;
-        @UsedByNative("MaterialKey.cpp")
         public int clearCoatRoughnessUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasClearCoatNormalTexture;
-        @UsedByNative("MaterialKey.cpp")
         public int clearCoatNormalUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasClearCoat;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasTransmission;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasTextureTransforms;
-        @UsedByNative("MaterialKey.cpp")
         public int emissiveUV;
-        @UsedByNative("MaterialKey.cpp")
         public int aoUV;
-        @UsedByNative("MaterialKey.cpp")
         public int normalUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasTransmissionTexture;
-        @UsedByNative("MaterialKey.cpp")
         public int transmissionUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasSheenColorTexture;
-        @UsedByNative("MaterialKey.cpp")
         public int sheenColorUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasSheenRoughnessTexture;
-        @UsedByNative("MaterialKey.cpp")
         public int sheenRoughnessUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasVolumeThicknessTexture;
-        @UsedByNative("MaterialKey.cpp")
         public int volumeThicknessUV;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasSheen;
-        @UsedByNative("MaterialKey.cpp")
         public boolean hasIOR;
 
         public MaterialKey() {}

android/gltfio-android/src/main/java/com/google/android/filament/gltfio/UbershaderProvider.java

@@ -20,7 +20,6 @@ import com.google.android.filament.Engine;
 import com.google.android.filament.MaterialInstance;
 import com.google.android.filament.Material;
 import com.google.android.filament.VertexBuffer;
-import com.google.android.filament.proguard.UsedByNative;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -95,7 +94,6 @@ public class UbershaderProvider implements MaterialProvider {
         nDestroyMaterials(mNativeObject);
     }
 
-    @UsedByNative("AssetLoader.cpp")
     public long getNativeObject() {
         return mNativeObject;
     }

android/gradle.properties

@@ -1,5 +1,5 @@
 GROUP=com.google.android.filament
-VERSION_NAME=1.43.1
+VERSION_NAME=1.28.2
 
 POM_DESCRIPTION=Real-time physically based rendering engine for Android.
 
@@ -18,12 +18,7 @@ POM_DEVELOPER_NAME=Filament Team
 org.gradle.jvmargs=-Xmx1536m
 
 android.useAndroidX=true
-android.defaults.buildfeatures.buildconfig=true
-android.nonTransitiveRClass=false
-android.nonFinalResIds=false
 
 com.google.android.filament.tools-dir=../../../out/release/filament
 com.google.android.filament.dist-dir=../out/android-release/filament
 com.google.android.filament.abis=all
-#com.google.android.filament.matdbg
-#com.google.android.filament.matnopt

android/gradle/gradle-mvn-push.gradle

@@ -86,10 +86,63 @@ afterEvaluate { project ->
         }
     }
 
+    if (project.getPlugins().hasPlugin('com.android.application') ||
+            project.getPlugins().hasPlugin('com.android.library')) {
+
+        task androidJavadocs(type: Javadoc) {
+            source = android.sourceSets.main.java.source
+            classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+            excludes = ['**/*.kt']
+        }
+
+        task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
+            classifier = 'javadoc'
+            from androidJavadocs.destinationDir
+        }
+
+        task androidSourcesJar(type: Jar) {
+            classifier = 'sources'
+            from android.sourceSets.main.java.source
+        }
+    }
+
+    if (JavaVersion.current().isJava8Compatible()) {
+        allprojects {
+            tasks.withType(Javadoc) {
+                options.addStringOption('Xdoclint:none', '-quiet')
+            }
+        }
+    }
+
+    if (JavaVersion.current().isJava9Compatible()) {
+        allprojects {
+            tasks.withType(Javadoc) {
+                options.addBooleanOption('html5', true)
+            }
+        }
+    }
+
+    artifacts {
+        if (project.getPlugins().hasPlugin('com.android.application') ||
+                project.getPlugins().hasPlugin('com.android.library')) {
+            archives androidSourcesJar
+            archives androidJavadocsJar
+        }
+    }
+
+    android.libraryVariants.all { variant ->
+        tasks.androidJavadocs.doFirst {
+            classpath += files(variant.javaCompileProvider.get().classpath.files.join(File.pathSeparator))
+        }
+    }
+
     publishing.publications.all { publication ->
         publication.groupId = GROUP
         publication.version = VERSION_NAME
 
+        publication.artifact androidSourcesJar
+        publication.artifact androidJavadocsJar
+
         configurePom(publication.pom)
     }
 

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 #Wed Nov 17 10:40:18 PST 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

android/samples/README.md

@@ -87,9 +87,9 @@ compile Filament's native library and Filament's AAR for this project. The easie
 is to install all the required dependencies and to run the following commands at the root of the
 source tree:
 
-```shell
-./build.sh -p desktop -i release
-./build.sh -p android release
+```
+$ ./build.sh -p desktop -i release
+$ ./build.sh -p android release
 ```
 
 This will build all the native components and the AAR required by this sample application.
@@ -100,8 +100,8 @@ distribution/install directory for desktop (produced by make/ninja install). Thi
 contain `bin/matc` and `bin/cmgen`.
 
 Example:
-```shell
-./gradlew -Pfilament_tools_dir=../../dist-release assembleDebug
+```
+$ ./gradlew -Pfilament_tools_dir=../../dist-release assembleDebug
 ```
 
 ## Important: SDK location
@@ -110,24 +110,14 @@ Either ensure your `ANDROID_HOME` environment variable is set or make sure the r
 contains a `local.properties` file with the `sdk.dir` property pointing to your installation of
 the Android SDK.
 
-## Compiling
-
-### Android Studio
+## Android Studio
 
 You must use the latest stable release of Android Studio. To open the project, point Studio to the
 `android` folder. After opening the project and syncing to gradle, select the sample of your choice
 using the drop-down widget in the toolbar.
 
+## Compiling
+
 To compile and run each sample make sure you have selected the appropriate build variant
 (arm7, arm8, x86 or x86_64). If you are not sure you can simply select the "universal"
 variant which includes all the other ones.
-
-### Command Line
-
-From the `android` directory in the project root:
-
-```shell
-./gradlew :samples:sample-hello-triangle:installDebug
-```
-
-Replace `sample-hello-triangle` with your preferred project.

android/samples/sample-gltf-viewer/build.gradle

@@ -40,11 +40,6 @@ android {
     dependenciesInfo {
         includeInApk = false
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-gltf-viewer/src/main/java/com/google/android/filament/gltf/MainActivity.kt

@@ -28,7 +28,6 @@ import com.google.android.filament.Fence
 import com.google.android.filament.IndirectLight
 import com.google.android.filament.Skybox
 import com.google.android.filament.View
-import com.google.android.filament.View.OnPickCallback
 import com.google.android.filament.utils.*
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -57,9 +56,7 @@ class MainActivity : Activity() {
     private lateinit var modelViewer: ModelViewer
     private lateinit var titlebarHint: TextView
     private val doubleTapListener = DoubleTapListener()
-    private val singleTapListener = SingleTapListener()
     private lateinit var doubleTapDetector: GestureDetector
-    private lateinit var singleTapDetector: GestureDetector
     private var remoteServer: RemoteServer? = null
     private var statusToast: Toast? = null
     private var statusText: String? = null
@@ -80,7 +77,6 @@ class MainActivity : Activity() {
         choreographer = Choreographer.getInstance()
 
         doubleTapDetector = GestureDetector(applicationContext, doubleTapListener)
-        singleTapDetector = GestureDetector(applicationContext, singleTapListener)
 
         modelViewer = ModelViewer(surfaceView)
         viewerContent.view = modelViewer.view
@@ -92,7 +88,6 @@ class MainActivity : Activity() {
         surfaceView.setOnTouchListener { _, event ->
             modelViewer.onTouchEvent(event)
             doubleTapDetector.onTouchEvent(event)
-            singleTapDetector.onTouchEvent(event)
             true
         }
 
@@ -234,7 +229,6 @@ class MainActivity : Activity() {
                 modelViewer.scene.skybox = sky
                 modelViewer.scene.indirectLight = ibl
                 viewerContent.indirectLight = ibl
-
             }
         }
     }
@@ -343,11 +337,6 @@ class MainActivity : Activity() {
         remoteServer?.close()
     }
 
-    override fun onBackPressed() {
-        super.onBackPressed()
-        finish()
-    }
-
     fun loadModelData(message: RemoteServer.ReceivedMessage) {
         Log.i(TAG, "Downloaded model ${message.label} (${message.buffer.capacity()} bytes)")
         clearStatusText()
@@ -367,8 +356,6 @@ class MainActivity : Activity() {
         automation.applySettings(modelViewer.engine, json, viewerContent)
         modelViewer.view.colorGrading = automation.getColorGrading(modelViewer.engine)
         modelViewer.cameraFocalLength = automation.viewerOptions.cameraFocalLength
-        modelViewer.cameraNear = automation.viewerOptions.cameraNear
-        modelViewer.cameraFar = automation.viewerOptions.cameraFar
         updateRootTransform()
     }
 
@@ -436,19 +423,4 @@ class MainActivity : Activity() {
             return super.onDoubleTap(e)
         }
     }
-
-    // Just for testing purposes
-    inner class SingleTapListener : GestureDetector.SimpleOnGestureListener() {
-        override fun onSingleTapUp(event: MotionEvent): Boolean {
-            modelViewer.view.pick(
-                event.x.toInt(),
-                surfaceView.height - event.y.toInt(),
-                surfaceView.handler, {
-                    val name = modelViewer.asset!!.getName(it.renderable)
-                    Log.v("Filament", "Picked ${it.renderable}: " + name)
-                },
-            )
-            return super.onSingleTapUp(event)
-        }
-    }
 }

android/samples/sample-hello-camera/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -40,11 +36,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-hello-camera/src/main/java/com/google/android/filament/hellocam/MainActivity.kt

@@ -30,7 +30,6 @@ import com.google.android.filament.*
 import com.google.android.filament.RenderableManager.*
 import com.google.android.filament.VertexBuffer.*
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 
 import java.nio.ByteBuffer
@@ -402,8 +401,6 @@ class MainActivity : Activity(), ActivityCompat.OnRequestPermissionsResultCallba
             camera.setProjection(45.0, aspect, 0.1, 20.0, Camera.Fov.VERTICAL)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

android/samples/sample-hello-triangle/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -40,11 +36,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-hello-triangle/src/main/AndroidManifest.xml

@@ -1,8 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
-  <uses-permission android:name="android.permission.INTERNET" />
-
   <application
       android:allowBackup="true"
       android:icon="@mipmap/ic_launcher"

android/samples/sample-hello-triangle/src/main/java/com/google/android/filament/hellotriangle/MainActivity.kt

@@ -29,7 +29,6 @@ import com.google.android.filament.RenderableManager.PrimitiveType
 import com.google.android.filament.VertexBuffer.AttributeType
 import com.google.android.filament.VertexBuffer.VertexAttribute
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 import java.nio.ByteBuffer
 import java.nio.ByteOrder
@@ -120,13 +119,8 @@ class MainActivity : Activity() {
     private fun setupView() {
         scene.skybox = Skybox.Builder().color(0.035f, 0.035f, 0.035f, 1.0f).build(engine)
 
-        if (engine.activeFeatureLevel == Engine.FeatureLevel.FEATURE_LEVEL_0) {
-            // post-processing is not supported at feature level 0
-            view.isPostProcessingEnabled = false
-        } else {
-            // NOTE: Try to disable post-processing (tone-mapping, etc.) to see the difference
-            // view.isPostProcessingEnabled = false
-        }
+        // NOTE: Try to disable post-processing (tone-mapping, etc.) to see the difference
+        // view.isPostProcessingEnabled = false
 
         // Tell the view which camera we want to use
         view.camera = camera
@@ -160,11 +154,7 @@ class MainActivity : Activity() {
     }
 
     private fun loadMaterial() {
-        var name = "materials/baked_color.filamat"
-        if (engine.activeFeatureLevel == Engine.FeatureLevel.FEATURE_LEVEL_0) {
-            name = "materials/baked_color_es2.filamat"
-        }
-        readUncompressedAsset(name).let {
+        readUncompressedAsset("materials/baked_color.filamat").let {
             material = Material.Builder().payload(it, it.remaining()).build(engine)
         }
     }
@@ -314,17 +304,7 @@ class MainActivity : Activity() {
     inner class SurfaceCallback : UiHelper.RendererCallback {
         override fun onNativeWindowChanged(surface: Surface) {
             swapChain?.let { engine.destroySwapChain(it) }
-
-            // at feature level 0, we don't have post-processing, so we need to set
-            // the colorspace to sRGB (FIXME: it's not supported everywhere!)
-            var flags = uiHelper.swapChainFlags
-            if (engine.activeFeatureLevel == Engine.FeatureLevel.FEATURE_LEVEL_0) {
-                if (SwapChain.isSRGBSwapChainSupported(engine)) {
-                    flags = flags or SwapChain.CONFIG_SRGB_COLORSPACE
-                }
-            }
-
-            swapChain = engine.createSwapChain(surface, flags)
+            swapChain = engine.createSwapChain(surface, uiHelper.swapChainFlags)
             displayHelper.attach(renderer, surfaceView.display);
         }
 
@@ -347,8 +327,6 @@ class MainActivity : Activity() {
                     -aspect * zoom, aspect * zoom, -zoom, zoom, 0.0, 10.0)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

android/samples/sample-hello-triangle/src/main/materials/baked_color.mat

@@ -17,7 +17,7 @@ material {
     ],
 
     // This material disables all lighting
-    shadingModel : unlit
+    shadingModel : unlit,
 }
 
 fragment {

android/samples/sample-hello-triangle/src/main/materials/baked_color_es2.mat

@@ -1,33 +0,0 @@
-// Simple unlit material that uses the colors associated with each vertex.
-//
-// This source material must be compiled to a binary material using the matc tool.
-// The command used to compile this material is:
-// matc -p mobile -a opengl -o app/src/main/assets/baked_color.filamat app/src/materials/baked_color.mat
-//
-// See build.gradle for an example of how to compile materials automatically
-// Please refer to the documentation for more information about matc and the materials system.
-
-material {
-    name : baked_color,
-
-    // Lists the required vertex attributes
-    // Here we only need a color (RGBA)
-    requires : [
-        color
-    ],
-
-    // This material disables all lighting
-    shadingModel : unlit,
-    featureLevel : 0
-}
-
-fragment {
-    void material(inout MaterialInputs material) {
-        // You must always call the prepareMaterial() function
-        prepareMaterial(material);
-
-        // We set the material's color to the color interpolated from
-        // the model's vertices
-        material.baseColor = getColor();
-    }
-}

android/samples/sample-image-based-lighting/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -46,11 +42,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-image-based-lighting/src/main/java/com/google/android/filament/ibl/MainActivity.kt

@@ -26,7 +26,6 @@ import android.view.animation.LinearInterpolator
 
 import com.google.android.filament.*
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 
 import java.nio.ByteBuffer
@@ -118,10 +117,9 @@ class MainActivity : Activity() {
     }
 
     private fun setupView() {
-        // ambient occlusion is the cheapest effect that adds a lot of quality
-        view.ambientOcclusionOptions = view.ambientOcclusionOptions.apply {
-            enabled = true
-        }
+        val ssaoOptions = view.ambientOcclusionOptions
+        ssaoOptions.enabled = true
+        view.ambientOcclusionOptions = ssaoOptions
 
         // NOTE: Try to disable post-processing (tone-mapping, etc.) to see the difference
         // view.isPostProcessingEnabled = false
@@ -305,8 +303,6 @@ class MainActivity : Activity() {
             camera.setProjection(45.0, aspect, 0.1, 20.0, Camera.Fov.VERTICAL)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

android/samples/sample-lit-cube/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -39,11 +35,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-lit-cube/src/main/java/com/google/android/filament/litcube/MainActivity.kt

@@ -29,7 +29,6 @@ import com.google.android.filament.*
 import com.google.android.filament.RenderableManager.*
 import com.google.android.filament.VertexBuffer.*
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 
 import java.nio.ByteBuffer
@@ -414,8 +413,6 @@ class MainActivity : Activity() {
             camera.setProjection(45.0, aspect, 0.1, 20.0, Camera.Fov.VERTICAL)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

android/samples/sample-live-wallpaper/build.gradle

@@ -3,10 +3,6 @@ apply plugin: 'kotlin-android'
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 android {
     namespace 'com.google.android.filament.livewallpaper'
 
@@ -22,11 +18,6 @@ android {
     dependenciesInfo {
         includeInApk = false
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-live-wallpaper/src/main/java/com/google/android/filament/livewallpaper/Wallpaper.kt

@@ -31,7 +31,6 @@ import android.view.animation.LinearInterpolator
 import androidx.annotation.RequiresApi
 import com.google.android.filament.*
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 
 class FilamentLiveWallpaper : WallpaperService() {
@@ -227,8 +226,6 @@ class FilamentLiveWallpaper : WallpaperService() {
                 camera.setProjection(45.0, aspect, 0.1, 20.0, Camera.Fov.VERTICAL)
 
                 view.viewport = Viewport(0, 0, width, height)
-
-                FilamentHelper.synchronizePendingFrames(engine)
             }
         }
     }

android/samples/sample-material-builder/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     meshInputFile = project.layout.projectDirectory.file("../../../third_party/models/shader_ball/shader_ball.obj")
     meshOutputDir = project.layout.projectDirectory.dir("src/main/assets/models")
@@ -50,11 +46,6 @@ android {
     aaptOptions {
         noCompress 'filamat'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-material-builder/src/main/java/com/google/android/filament/material_builder/MainActivity.kt

@@ -26,7 +26,6 @@ import android.view.animation.LinearInterpolator
 
 import com.google.android.filament.*
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 import com.google.android.filament.filamat.MaterialBuilder
 
@@ -344,8 +343,6 @@ class MainActivity : Activity() {
             camera.setProjection(45.0, aspect, 0.1, 20.0, Camera.Fov.VERTICAL)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 }

android/samples/sample-material-builder/src/main/res/values/strings.xml

@@ -1,3 +1,3 @@
 <resources>
-  <string name="app_name">Material Builder</string>
+  <string name="app_name">Image-Based Lighting</string>
 </resources>

android/samples/sample-multi-view/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -39,11 +35,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-multi-view/src/main/java/com/google/android/filament/multiview/MainActivity.kt

@@ -27,10 +27,8 @@ import android.view.animation.LinearInterpolator
 
 import com.google.android.filament.*
 import com.google.android.filament.RenderableManager.*
-import com.google.android.filament.Renderer.ClearOptions
 import com.google.android.filament.VertexBuffer.*
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 
 import java.nio.ByteBuffer
@@ -66,6 +64,7 @@ class MainActivity : Activity() {
     private lateinit var view0: View
     private lateinit var view1: View
     private lateinit var view2: View
+    private lateinit var view3: View
     private lateinit var view4: View
     // We need skybox to set the background color
     private lateinit var skybox: Skybox
@@ -120,19 +119,15 @@ class MainActivity : Activity() {
         view0 = engine.createView()
         view1 = engine.createView()
         view2 = engine.createView()
+        view3 = engine.createView()
         view4 = engine.createView()
 
         view0.setName("view0");
         view1.setName("view1");
         view2.setName("view2");
+        view3.setName("view3");
         view4.setName("view4");
 
-//  Useful for debugging issues
-//        view0.isPostProcessingEnabled = false
-//        view1.isPostProcessingEnabled = false
-//        view2.isPostProcessingEnabled = false
-//        view4.isPostProcessingEnabled = false
-
         view4.blendMode = View.BlendMode.TRANSLUCENT;
 
         skybox =  Skybox.Builder().build(engine);
@@ -145,11 +140,13 @@ class MainActivity : Activity() {
         view0.camera = camera
         view1.camera = camera
         view2.camera = camera
+        view3.camera = camera
         view4.camera = camera
 
         view0.scene = scene
         view1.scene = scene
         view2.scene = scene
+        view3.scene = scene
         view4.scene = scene
     }
 
@@ -382,6 +379,7 @@ class MainActivity : Activity() {
         engine.destroyView(view0)
         engine.destroyView(view1)
         engine.destroyView(view2)
+        engine.destroyView(view3)
         engine.destroyView(view4)
         engine.destroySkybox(skybox)
         engine.destroyScene(scene)
@@ -409,18 +407,19 @@ class MainActivity : Activity() {
                 // If beginFrame() returns false you should skip the frame
                 // This means you are sending frames too quickly to the GPU
                 if (renderer.beginFrame(swapChain!!, frameTimeNanos)) {
-                    scene.skybox = skybox
-                    skybox.setColor(0.35f, 0.35f, 0.35f, 1.0f);
-
+                    skybox.setColor(0.035f, 0.035f, 0.035f, 1.0f);
                     renderer.render(view0)
 
-                    skybox.setColor(1.0f, 1.0f, 0.0f, 1.0f);
-
+                    skybox.setColor(1.0f, 0.0f, 0.0f, 1.0f);
                     renderer.render(view1)
 
-                    scene.skybox = null
-
+                    skybox.setColor(0.0f, 1.0f, 0.0f, 1.0f);
                     renderer.render(view2)
+
+                    skybox.setColor(0.0f, 0.0f, 1.0f, 1.0f);
+                    renderer.render(view3)
+
+                    skybox.setColor(0.0f, 0.0f, 0.0f, 0.0f);
                     renderer.render(view4)
 
                     renderer.endFrame()
@@ -434,10 +433,6 @@ class MainActivity : Activity() {
             swapChain?.let { engine.destroySwapChain(it) }
             swapChain = engine.createSwapChain(surface)
             renderer.setDisplayInfo(DisplayHelper.getDisplayInfo(surfaceView.display, Renderer.DisplayInfo()))
-            renderer.clearOptions = renderer.clearOptions.apply {
-                clear = true
-                clearColor = floatArrayOf( 0.0f, 0.0f, 1.0f, 0.0f )
-            }
         }
 
         override fun onDetachedFromSurface() {
@@ -458,9 +453,8 @@ class MainActivity : Activity() {
             view0.viewport = Viewport(0,         0,          width / 2, height / 2)
             view1.viewport = Viewport(width / 2, 0,          width / 2, height / 2)
             view2.viewport = Viewport(0,         height / 2, width / 2, height / 2)
+            view3.viewport = Viewport(width / 2, height / 2, width / 2, height / 2)
             view4.viewport = Viewport(width / 4, height / 4, width / 2, height / 2)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

android/samples/sample-page-curl/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     iblInputFile = project.layout.projectDirectory.file("../../../third_party/environments/studio_small_02_2k.hdr")
     iblOutputDir = project.layout.projectDirectory.dir("src/main/assets/envs")
@@ -42,11 +38,6 @@ android {
     aaptOptions {
         noCompress 'filamat'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-page-curl/src/main/java/com/google/android/filament/pagecurl/MainActivity.java

@@ -37,7 +37,6 @@ import com.google.android.filament.Camera;
 import com.google.android.filament.Engine;
 import com.google.android.filament.Entity;
 import com.google.android.filament.EntityManager;
-import com.google.android.filament.Fence;
 import com.google.android.filament.Filament;
 import com.google.android.filament.IndirectLight;
 import com.google.android.filament.LightManager;
@@ -50,7 +49,6 @@ import com.google.android.filament.TransformManager;
 import com.google.android.filament.Viewport;
 
 import com.google.android.filament.android.DisplayHelper;
-import com.google.android.filament.android.FilamentHelper;
 import com.google.android.filament.android.TextureHelper;
 import com.google.android.filament.android.UiHelper;
 
@@ -109,7 +107,6 @@ public class MainActivity extends Activity
             mCamera.setProjection(60.0, aspect, 1.0, 2000.0, Camera.Fov.HORIZONTAL);
         }
         mView.setViewport(new Viewport(0, 0, width, height));
-        FilamentHelper.synchronizePendingFrames(mEngine);
     }
 
     @Override

android/samples/sample-stream-test/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -40,11 +36,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-stream-test/src/main/java/com/google/android/filament/streamtest/MainActivity.kt

@@ -38,7 +38,6 @@ import android.os.Build
 import android.view.MotionEvent
 import androidx.annotation.RequiresApi
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 
 
 class MainActivity : Activity(), ActivityCompat.OnRequestPermissionsResultCallback {
@@ -402,8 +401,6 @@ class MainActivity : Activity(), ActivityCompat.OnRequestPermissionsResultCallba
             camera.setProjection(45.0, aspect, 0.1, 20.0, Camera.Fov.VERTICAL)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

android/samples/sample-texture-view/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -40,11 +36,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-texture-view/src/main/java/com/google/android/filament/textureview/MainActivity.kt

@@ -29,7 +29,6 @@ import com.google.android.filament.RenderableManager.PrimitiveType
 import com.google.android.filament.VertexBuffer.AttributeType
 import com.google.android.filament.VertexBuffer.VertexAttribute
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 import java.nio.ByteBuffer
 import java.nio.ByteOrder
@@ -328,8 +327,6 @@ class MainActivity : Activity() {
                     -aspect * zoom, aspect * zoom, -zoom, zoom, 0.0, 10.0)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

android/samples/sample-textured-object/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -47,11 +43,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-textured-object/src/main/java/com/google/android/filament/textured/MainActivity.kt

@@ -26,7 +26,6 @@ import android.view.animation.LinearInterpolator
 
 import com.google.android.filament.*
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.utils.*
 import com.google.android.filament.android.UiHelper
 
@@ -231,7 +230,7 @@ class MainActivity : Activity() {
         animator.repeatCount = ValueAnimator.INFINITE
         animator.addUpdateListener { a ->
             val v = (a.animatedValue as Float)
-            camera.lookAt(cos(v) * 5.5, 1.5, sin(v) * 5.5, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0)
+            camera.lookAt(cos(v) * 4.5, 1.5, sin(v) * 4.5, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0)
         }
         animator.start()
     }
@@ -253,7 +252,7 @@ class MainActivity : Activity() {
 
         // Stop the animation and any pending frame
         choreographer.removeFrameCallback(frameScheduler)
-        animator.cancel()
+        animator.cancel();
 
         // Always detach the surface before destroying the engine
         uiHelper.detach()
@@ -324,8 +323,6 @@ class MainActivity : Activity() {
             camera.setProjection(45.0, aspect, 0.1, 20.0, Camera.Fov.VERTICAL)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

android/samples/sample-transparent-view/build.gradle

@@ -6,10 +6,6 @@ plugins {
 
 project.ext.isSample = true
 
-kotlin {
-    jvmToolchain(versions.jdk)
-}
-
 filamentTools {
     materialInputDir = project.layout.projectDirectory.dir("src/main/materials")
     materialOutputDir = project.layout.projectDirectory.dir("src/main/assets/materials")
@@ -40,11 +36,6 @@ android {
     aaptOptions {
         noCompress 'filamat', 'ktx'
     }
-
-    compileOptions {
-        sourceCompatibility versions.jdk
-        targetCompatibility versions.jdk
-    }
 }
 
 dependencies {

android/samples/sample-transparent-view/src/main/java/com/google/android/filament/transparentrendering/MainActivity.kt

@@ -33,7 +33,6 @@ import com.google.android.filament.*
 import com.google.android.filament.RenderableManager.*
 import com.google.android.filament.VertexBuffer.*
 import com.google.android.filament.android.DisplayHelper
-import com.google.android.filament.android.FilamentHelper
 import com.google.android.filament.android.UiHelper
 
 import java.nio.ByteBuffer
@@ -140,9 +139,9 @@ class MainActivity : Activity() {
         camera = engine.createCamera(engine.entityManager.create())
 
         // clear the swapchain with transparent pixels
-        renderer.clearOptions = renderer.clearOptions.apply {
-            clear = true
-        }
+        val options = renderer.clearOptions
+        options.clear = true
+        renderer.clearOptions = options
     }
 
     private fun setupView() {
@@ -351,8 +350,6 @@ class MainActivity : Activity() {
                     -aspect * zoom, aspect * zoom, -zoom, zoom, 0.0, 10.0)
 
             view.viewport = Viewport(0, 0, width, height)
-
-            FilamentHelper.synchronizePendingFrames(engine)
         }
     }
 

build.sh

@@ -22,11 +22,9 @@ function print_help {
     echo "        All (and only) git-ignored files under android/ are deleted."
     echo "        This is sometimes needed instead of -c (which still misses some clean steps)."
     echo "    -d"
-    echo "        Enable matdbg."
+    echo "        Enable matdbg and disable material optimization."
     echo "    -f"
     echo "        Always invoke CMake before incremental builds."
-    echo "    -g"
-    echo "        Disable material optimization."
     echo "    -i"
     echo "        Install build output"
     echo "    -m"
@@ -58,9 +56,6 @@ function print_help {
     echo "        When building for Android, also build select sample APKs."
     echo "        sampleN is an Android sample, e.g., sample-gltf-viewer."
     echo "        This automatically performs a partial desktop build and install."
-    echo "    -b"
-    echo "        Enable Address and Undefined Behavior Sanitizers (asan/ubsan) for debugging."
-    echo "        This is only for the desktop build."
     echo ""
     echo "Build types:"
     echo "    release"
@@ -90,8 +85,8 @@ function print_help {
     echo "    Desktop matc target, release build:"
     echo "        \$ ./$self_name release matc"
     echo ""
-    echo "    Build gltf_viewer:"
-    echo "        \$ ./$self_name release gltf_viewer"
+    echo "    Build gltf_viewer then immediately run it with no arguments:"
+    echo "        \$ ./$self_name release run_gltf_viewer"
     echo ""
  }
 
@@ -167,11 +162,6 @@ EGL_ON_LINUX_OPTION="-DFILAMENT_SUPPORTS_EGL_ON_LINUX=OFF"
 MATDBG_OPTION="-DFILAMENT_ENABLE_MATDBG=OFF"
 MATDBG_GRADLE_OPTION=""
 
-MATOPT_OPTION=""
-MATOPT_GRADLE_OPTION=""
-
-ASAN_UBSAN_OPTION=""
-
 IOS_BUILD_SIMULATOR=false
 BUILD_UNIVERSAL_LIBRARIES=false
 
@@ -210,10 +200,13 @@ function build_desktop_target {
     echo "Building ${lc_target} in out/cmake-${lc_target}..."
     mkdir -p "out/cmake-${lc_target}"
 
-    pushd "out/cmake-${lc_target}" > /dev/null
+    cd "out/cmake-${lc_target}"
 
+    # On macOS, set the deployment target to 10.15.
     local lc_name=$(echo "${UNAME}" | tr '[:upper:]' '[:lower:]')
     if [[ "${lc_name}" == "darwin" ]]; then
+        local deployment_target="-DCMAKE_OSX_DEPLOYMENT_TARGET=10.15"
+
         if [[ "${BUILD_UNIVERSAL_LIBRARIES}" == "true" ]]; then
             local architectures="-DCMAKE_OSX_ARCHITECTURES=arm64;x86_64"
         fi
@@ -228,8 +221,7 @@ function build_desktop_target {
             ${SWIFTSHADER_OPTION} \
             ${EGL_ON_LINUX_OPTION} \
             ${MATDBG_OPTION} \
-            ${MATOPT_OPTION} \
-            ${ASAN_UBSAN_OPTION} \
+            ${deployment_target} \
             ${architectures} \
             ../..
     fi
@@ -243,13 +235,12 @@ function build_desktop_target {
     if [[ -d "../${lc_target}/filament" ]]; then
         if [[ "${ISSUE_ARCHIVES}" == "true" ]]; then
             echo "Generating out/filament-${lc_target}-${LC_UNAME}.tgz..."
-            pushd "../${lc_target}" > /dev/null
+            cd "../${lc_target}"
             tar -czvf "../filament-${lc_target}-${LC_UNAME}.tgz" filament
-            popd > /dev/null
         fi
     fi
 
-    popd > /dev/null
+    cd ../..
 }
 
 function build_desktop {
@@ -267,7 +258,7 @@ function build_webgl_with_target {
 
     echo "Building WebGL ${lc_target}..."
     mkdir -p "out/cmake-webgl-${lc_target}"
-    pushd "out/cmake-webgl-${lc_target}" > /dev/null
+    cd "out/cmake-webgl-${lc_target}"
 
     if [[ ! "${BUILD_TARGETS}" ]]; then
         BUILD_TARGETS=${BUILD_CUSTOM_TARGETS}
@@ -304,17 +295,17 @@ function build_webgl_with_target {
 
         if [[ "${ISSUE_ARCHIVES}" == "true" ]]; then
             echo "Generating out/filament-${lc_target}-web.tgz..."
-            pushd web/filament-js > /dev/null
+            cd web/filament-js
             tar -cvf "../../../filament-${lc_target}-web.tar" filament.js
             tar -rvf "../../../filament-${lc_target}-web.tar" filament.wasm
             tar -rvf "../../../filament-${lc_target}-web.tar" filament.d.ts
-            popd > /dev/null
+            cd -
             gzip -c "../filament-${lc_target}-web.tar" > "../filament-${lc_target}-web.tgz"
             rm "../filament-${lc_target}-web.tar"
         fi
     fi
 
-    popd > /dev/null
+    cd ../..
 }
 
 function build_webgl {
@@ -345,7 +336,7 @@ function build_android_target {
     echo "Building Android ${lc_target} (${arch})..."
     mkdir -p "out/cmake-android-${lc_target}-${arch}"
 
-    pushd "out/cmake-android-${lc_target}-${arch}" > /dev/null
+    cd "out/cmake-android-${lc_target}-${arch}"
 
     if [[ ! -d "CMakeFiles" ]] || [[ "${ISSUE_CMAKE_ALWAYS}" == "true" ]]; then
         cmake \
@@ -356,7 +347,6 @@ function build_android_target {
             -DCMAKE_INSTALL_PREFIX="../android-${lc_target}/filament" \
             -DCMAKE_TOOLCHAIN_FILE="../../build/toolchain-${arch}-linux-android.cmake" \
             ${MATDBG_OPTION} \
-            ${MATOPT_OPTION} \
             ${VULKAN_ANDROID_OPTION} \
             ../..
     fi
@@ -364,7 +354,7 @@ function build_android_target {
     # We must always install Android libraries to build the AAR
     ${BUILD_COMMAND} install
 
-    popd > /dev/null
+    cd ../..
 }
 
 function build_android_arch {
@@ -385,9 +375,9 @@ function archive_android {
     if [[ -d "out/android-${lc_target}/filament" ]]; then
         if [[ "${ISSUE_ARCHIVES}" == "true" ]]; then
             echo "Generating out/filament-android-${lc_target}-${LC_UNAME}.tgz..."
-            pushd "out/android-${lc_target}" > /dev/null
+            cd "out/android-${lc_target}"
             tar -czvf "../filament-android-${lc_target}-${LC_UNAME}.tgz" filament
-            popd > /dev/null
+            cd ../..
         fi
     fi
 }
@@ -465,7 +455,7 @@ function build_android {
         archive_android "Release"
     fi
 
-    pushd android > /dev/null
+    cd android
 
     if [[ "${ISSUE_DEBUG_BUILD}" == "true" ]]; then
         ./gradlew \
@@ -473,7 +463,6 @@ function build_android {
             -Pcom.google.android.filament.abis=${ABI_GRADLE_OPTION} \
             ${VULKAN_ANDROID_GRADLE_OPTION} \
             ${MATDBG_GRADLE_OPTION} \
-            ${MATOPT_GRADLE_OPTION} \
             :filament-android:assembleDebug \
             :gltfio-android:assembleDebug \
             :filament-utils-android:assembleDebug
@@ -488,7 +477,6 @@ function build_android {
                 ./gradlew \
                     -Pcom.google.android.filament.dist-dir=../out/android-debug/filament \
                     -Pcom.google.android.filament.abis=${ABI_GRADLE_OPTION} \
-                    ${MATOPT_GRADLE_OPTION} \
                     :samples:${sample}:assembleDebug
             done
         fi
@@ -522,7 +510,6 @@ function build_android {
             -Pcom.google.android.filament.abis=${ABI_GRADLE_OPTION} \
             ${VULKAN_ANDROID_GRADLE_OPTION} \
             ${MATDBG_GRADLE_OPTION} \
-            ${MATOPT_GRADLE_OPTION} \
             :filament-android:assembleRelease \
             :gltfio-android:assembleRelease \
             :filament-utils-android:assembleRelease
@@ -537,7 +524,6 @@ function build_android {
                 ./gradlew \
                     -Pcom.google.android.filament.dist-dir=../out/android-release/filament \
                     -Pcom.google.android.filament.abis=${ABI_GRADLE_OPTION} \
-                    ${MATOPT_GRADLE_OPTION} \
                     :samples:${sample}:assembleRelease
             done
         fi
@@ -566,7 +552,7 @@ function build_android {
         fi
     fi
 
-    popd > /dev/null
+    cd ..
 }
 
 function build_ios_target {
@@ -577,7 +563,7 @@ function build_ios_target {
     echo "Building iOS ${lc_target} (${arch}) for ${platform}..."
     mkdir -p "out/cmake-ios-${lc_target}-${arch}"
 
-    pushd "out/cmake-ios-${lc_target}-${arch}" > /dev/null
+    cd "out/cmake-ios-${lc_target}-${arch}"
 
     if [[ ! -d "CMakeFiles" ]] || [[ "${ISSUE_CMAKE_ALWAYS}" == "true" ]]; then
         cmake \
@@ -590,7 +576,6 @@ function build_ios_target {
             -DIOS=1 \
             -DCMAKE_TOOLCHAIN_FILE=../../third_party/clang/iOS.cmake \
             ${MATDBG_OPTION} \
-            ${MATOPT_OPTION} \
             ../..
     fi
 
@@ -601,7 +586,7 @@ function build_ios_target {
         ${BUILD_COMMAND} ${INSTALL_COMMAND}
     fi
 
-    popd > /dev/null
+    cd ../..
 }
 
 function archive_ios {
@@ -610,9 +595,9 @@ function archive_ios {
     if [[ -d "out/ios-${lc_target}/filament" ]]; then
         if [[ "${ISSUE_ARCHIVES}" == "true" ]]; then
             echo "Generating out/filament-${lc_target}-ios.tgz..."
-            pushd "out/ios-${lc_target}" > /dev/null
+            cd "out/ios-${lc_target}"
             tar -czvf "../filament-${lc_target}-ios.tgz" filament
-            popd > /dev/null
+            cd ../..
         fi
     fi
 }
@@ -671,14 +656,14 @@ function build_web_docs {
 
     mkdir -p out/web-docs
     cp -f docs/web-docs-package.json out/web-docs/package.json
-    pushd out/web-docs > /dev/null
+    cd out/web-docs
 
     npm install > /dev/null
 
     # Generate documents
     npx markdeep-rasterizer ../../docs/Filament.md.html ../../docs/Materials.md.html  ../../docs/
 
-    popd > /dev/null
+    cd ../..
 }
 
 function validate_build_command {
@@ -751,25 +736,15 @@ function run_tests {
     fi
 }
 
-function check_debug_release_build {
-    if [[ "${ISSUE_DEBUG_BUILD}" == "true" || "${ISSUE_RELEASE_BUILD}" == "true" ]]; then
-        "$@";
-    else
-        echo "You must declare a debug or release target for $@ builds."
-        echo ""
-        exit 1
-    fi
-}
-
 # Beginning of the script
 
 pushd "$(dirname "$0")" > /dev/null
 
-while getopts ":hacCfgijmp:q:uvslwtedk:b" opt; do
+while getopts ":hacCfijmp:q:uvslwtedk:" opt; do
     case ${opt} in
         h)
             print_help
-            exit 0
+            exit 1
             ;;
         a)
             ISSUE_ARCHIVES=true
@@ -783,16 +758,12 @@ while getopts ":hacCfgijmp:q:uvslwtedk:b" opt; do
             ;;
         d)
             PRINT_MATDBG_HELP=true
-            MATDBG_OPTION="-DFILAMENT_ENABLE_MATDBG=ON, -DFILAMENT_BUILD_FILAMAT=ON"
+            MATDBG_OPTION="-DFILAMENT_ENABLE_MATDBG=ON, -DFILAMENT_DISABLE_MATOPT=ON, -DFILAMENT_BUILD_FILAMAT=ON"
             MATDBG_GRADLE_OPTION="-Pcom.google.android.filament.matdbg"
             ;;
         f)
             ISSUE_CMAKE_ALWAYS=true
             ;;
-        g)
-            MATOPT_OPTION="-DFILAMENT_DISABLE_MATOPT=ON"
-            MATOPT_GRADLE_OPTION="-Pcom.google.android.filament.matnopt"
-            ;;
         i)
             INSTALL_COMMAND=install
             ;;
@@ -805,7 +776,7 @@ while getopts ":hacCfgijmp:q:uvslwtedk:b" opt; do
             platforms=$(echo "${OPTARG}" | tr ',' '\n')
             for platform in ${platforms}
             do
-                case $(echo "${platform}" | tr '[:upper:]' '[:lower:]') in
+                case ${platform} in
                     desktop)
                         ISSUE_DESKTOP_BUILD=true
                     ;;
@@ -824,12 +795,6 @@ while getopts ":hacCfgijmp:q:uvslwtedk:b" opt; do
                         ISSUE_DESKTOP_BUILD=true
                         ISSUE_WEBGL_BUILD=false
                     ;;
-                    *)
-                        echo "Unknown platform ${platform}"
-                        echo "Platform must be one of [desktop|android|ios|webgl|all]"
-                        echo ""
-                        exit 1
-                    ;;    
                 esac
             done
             ;;
@@ -842,7 +807,7 @@ while getopts ":hacCfgijmp:q:uvslwtedk:b" opt; do
             abis=$(echo "${OPTARG}" | tr ',' '\n')
             for abi in ${abis}
             do
-                case $(echo "${abi}" | tr '[:upper:]' '[:lower:]') in
+                case ${abi} in
                     armeabi-v7a)
                         ABI_ARMEABI_V7A=true
                     ;;
@@ -861,12 +826,6 @@ while getopts ":hacCfgijmp:q:uvslwtedk:b" opt; do
                         ABI_X86=true
                         ABI_X86_64=true
                     ;;
-                    *)
-                        echo "Unknown abi ${abi}"
-                        echo "ABI must be one of [armeabi-v7a|arm64-v8a|x86|x86_64|all]"
-                        echo ""
-                        exit 1
-                    ;;
                 esac
             done
             ;;
@@ -904,9 +863,6 @@ while getopts ":hacCfgijmp:q:uvslwtedk:b" opt; do
             BUILD_ANDROID_SAMPLES=true
             ANDROID_SAMPLES=$(echo "${OPTARG}" | tr ',' '\n')
             ;;
-        b)  ASAN_UBSAN_OPTION="-DFILAMENT_ENABLE_ASAN_UBSAN=ON"
-            echo "Enabled ASAN/UBSAN"
-            ;;
         \?)
             echo "Invalid option: -${OPTARG}" >&2
             echo ""
@@ -930,9 +886,9 @@ fi
 shift $((OPTIND - 1))
 
 for arg; do
-    if [[ $(echo "${arg}" | tr '[:upper:]' '[:lower:]') == "release" ]]; then
+    if [[ "${arg}" == "release" ]]; then
         ISSUE_RELEASE_BUILD=true
-    elif [[ $(echo "${arg}" | tr '[:upper:]' '[:lower:]') == "debug" ]]; then
+    elif [[ "${arg}" == "debug" ]]; then
         ISSUE_DEBUG_BUILD=true
     else
         BUILD_CUSTOM_TARGETS="${BUILD_CUSTOM_TARGETS} ${arg}"
@@ -950,19 +906,19 @@ if [[ "${ISSUE_CLEAN_AGGRESSIVE}" == "true" ]]; then
 fi
 
 if [[ "${ISSUE_DESKTOP_BUILD}" == "true" ]]; then
-    check_debug_release_build build_desktop
+    build_desktop
 fi
 
 if [[ "${ISSUE_ANDROID_BUILD}" == "true" ]]; then
-    check_debug_release_build build_android
+    build_android
 fi
 
 if [[ "${ISSUE_IOS_BUILD}" == "true" ]]; then
-    check_debug_release_build build_ios
+    build_ios
 fi
 
 if [[ "${ISSUE_WEBGL_BUILD}" == "true" ]]; then
-    check_debug_release_build build_webgl
+    build_webgl
 fi
 
 if [[ "${ISSUE_WEB_DOCS}" == "true" ]]; then

build/android/build.sh

@@ -44,20 +44,13 @@ elif [[ "$LC_UNAME" == "darwin" ]]; then
 fi
 source `dirname $0`/../common/build-common.sh
 
-if [[ "$GITHUB_WORKFLOW" ]]; then
-    java_version=$(java -version 2>&1 | head -1 | cut -d'"' -f2 | sed '/^1\./s///' | cut -d'.' -f1)
-    if [[ "$java_version" < 17 ]]; then
-        echo "Android builds require Java 17, found version ${java_version} instead"
-        exit 0
-    fi
-fi
-
 # Unless explicitly specified, NDK version will be set to match exactly the required one
 FILAMENT_NDK_VERSION=${FILAMENT_NDK_VERSION:-$(cat `dirname $0`/ndk.version)}
 
 # Install the required NDK version specifically (if not present)
 if [[ ! -d "${ANDROID_HOME}/ndk/$FILAMENT_NDK_VERSION" ]]; then
-    ${ANDROID_HOME}/cmdline-tools/latest/bin/sdkmanager "ndk;$FILAMENT_NDK_VERSION" > /dev/null
+    # NOTE: We MUST use Java 1.8 to run sdkmanager currently, it fails starting with Java 11
+    JAVA_HOME=${JAVA_HOME_8_X64} ${ANDROID_HOME}/tools/bin/sdkmanager "ndk;$FILAMENT_NDK_VERSION" > /dev/null
 fi
 
 # Only build 1 64 bit target during presubmit to cut down build times during presubmit