Dawn change to enable writeBuffer for size != multiple of 4

Co-authored-by: Andy Hovingh <6198728+AndyHovingh@users.noreply.github.com>

.github/actions/dep-versions/action.yml

@@ -3,5 +3,5 @@ runs:
   using: "composite"
   steps:
     - name: Set up dependency versions
-      shell: bash
+      shell: bash    
       run: cat ./build/common/versions >> $GITHUB_ENV

.github/actions/web-prereq/action.yml

@@ -1,16 +0,0 @@
-name: 'Web Preqrequisites'
-runs:
-  using: "composite"
-  steps:
-    - uses: ./.github/actions/dep-versions
-    - name: Cache EMSDK
-      id: emsdk-cache
-      uses: actions/cache@v4 # Use a specific version
-      with:
-        path: emsdk
-        key: ${{ runner.os }}-emsdk-${{ env.GITHUB_EMSDK_VERSION }}
-    - name: Install Web Prerequisites
-      shell: bash
-      run: |
-        bash ./build/common/get-emscripten.sh
-        echo "EMSDK=$PWD/emsdk" >> $GITHUB_ENV

.github/workflows/mac-continuous.yml

@@ -26,4 +26,4 @@ jobs:
           path: out/filament-release-darwin.tgz
       - name: Check public headers
         run: |
-          test/check-headers/test.sh out/release/filament/include
+          build/common/check-headers.sh out/release/filament/include

.github/workflows/presubmit.yml

@@ -96,7 +96,6 @@ jobs:
         with:
           fetch-depth: 0
       - uses: ./.github/actions/linux-prereq
-      - uses: ./.github/actions/web-prereq
       - name: Run build script
         run: |
           cd build/web && printf "y" | ./build.sh presubmit
@@ -124,15 +123,13 @@ jobs:
       - uses: ./.github/actions/mac-prereq
       - name: Cache Mesa and deps
         id: mesa-cache
-        uses: actions/cache@v4
+        uses: actions/cache@v4 # Use a specific version
         with:
           path: mesa
           key: ${{ runner.os }}-mesa-deps-2-${{ vars.MESA_VERSION }}
-      - name: Prerequisites
-        id: prereqs
-        run: |
-          bash build/common/get-mesa.sh
-          pip install tifffile numpy
+      - name: Get Mesa
+        id: mesa-prereq
+        run: bash test/utils/get_mesa.sh
       - name: Run Test
         run: bash test/renderdiff/test.sh
       - uses: actions/upload-artifact@v4
@@ -153,8 +150,8 @@ jobs:
       - name: Run test
         run: ./out/cmake-debug/libs/filamat/test_filamat --gtest_filter=MaterialCompiler.Wgsl*
 
-  test-code-correctness:
-    name: test-code-correctness
+  code-correcteness:
+    name: code-correctness
     runs-on: 'macos-14-xlarge'
     steps:
       - uses: actions/checkout@v4.1.6

.github/workflows/release.yml

@@ -65,9 +65,13 @@ jobs:
 
   build-mac:
     name: build-mac
-    runs-on: macos-14-xlarge
+    runs-on: ${{ matrix.os }}
     if: github.event_name == 'release' || github.event.inputs.platform == 'desktop'
 
+    strategy:
+      matrix:
+        os: [macos-14-xlarge, ubuntu-22.04-32core]
+
     steps:
       - name: Decide Git ref
         id: git_ref
@@ -114,7 +118,6 @@ jobs:
         with:
           ref: ${{ steps.git_ref.outputs.ref }}
       - uses: ./.github/actions/linux-prereq
-      - uses: ./.github/actions/web-prereq
       - name: Run build script
         env:
           TAG: ${{ steps.git_ref.outputs.tag }}
@@ -163,9 +166,6 @@ jobs:
           mv out/filamat-android-release.aar out/filamat-${TAG}-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
-          cd out/android-release/filament
-          tar -czf ../../filament-${TAG}-android-native.tgz .
-          cd ../../..
       - name: Sign sample-gltf-viewer
         run: |
           echo "${APK_KEYSTORE_BASE64}" > filament.jks.base64
@@ -187,7 +187,7 @@ jobs:
           script: |
             const upload = require('./build/common/upload-release-assets');
             const { TAG } = process.env;
-            const globber = await glob.create(['out/*.aar', 'out/*.apk', 'out/*.tgz'].join('\n'));
+            const globber = await glob.create(['out/*.aar', 'out/*.apk'].join('\n'));
             await upload({ github, context }, await globber.glob(), TAG);
 
   build-ios:

.github/workflows/web-continuous.yml

@@ -17,7 +17,6 @@ jobs:
         with:
           fetch-depth: 0
       - uses: ./.github/actions/linux-prereq
-      - uses: ./.github/actions/web-prereq
       - name: Run build script
         run: |
           cd build/web && printf "y" | ./build.sh continuous

BUILDING.md

@@ -363,8 +363,6 @@ python ./emsdk.py activate latest
 source ./emsdk_env.sh
 ```
 
-Alternatively, you can try running the script `build/common/get-emscripten.sh`.
-
 After this you can invoke the [easy build](#easy-build) script as follows:
 
 ```shell

NEW_RELEASE_NOTES.md

@@ -7,5 +7,3 @@ for next branch cut* header.
 appropriate header in [RELEASE_NOTES.md](./RELEASE_NOTES.md).
 
 ## Release notes for next branch cut
-
-- materials: sampler now export their type in the material binary [⚠️ **New Material Version**]

README.md

@@ -31,7 +31,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.google.android.filament:filament-android:1.59.5'
+    implementation 'com.google.android.filament:filament-android:1.59.4'
 }
 ```
 
@@ -51,7 +51,7 @@ 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', '~> 1.59.5'
+pod 'Filament', '~> 1.59.4'
 ```
 
 ## Documentation

RELEASE_NOTES.md

@@ -7,11 +7,6 @@ A new header is inserted each time a *tag* is created.
 Instead, if you are authoring a PR for the main branch, add your release note to
 [NEW_RELEASE_NOTES.md](./NEW_RELEASE_NOTES.md).
 
-## v1.60.0
-
-- materials: remove dependence on per-view descset layout from filamat. [⚠️ **New Material Version**]
-- `ColorGrading::Builder::toneMapper` now takes a `shared_ptr<ToneMapper>`
-
 ## v1.59.5
 
 

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

@@ -18,7 +18,6 @@
 
 #include <filament/ColorGrading.h>
 #include <filament/ToneMapper.h>
-#include <memory>
 
 #include <math/vec3.h>
 #include <math/vec4.h>
@@ -68,9 +67,8 @@ extern "C" JNIEXPORT void JNICALL
 Java_com_google_android_filament_ColorGrading_nBuilderToneMapper(JNIEnv*, jclass,
         jlong nativeBuilder, jlong toneMapper_) {
     ColorGrading::Builder* builder = (ColorGrading::Builder*) nativeBuilder;
-    ToneMapper* toneMapper = reinterpret_cast<ToneMapper*>(toneMapper_);
-    std::shared_ptr<ToneMapper> toneMapperCopy(toneMapper->clone());
-    builder->toneMapper(toneMapperCopy);
+    const ToneMapper* toneMapper = (const ToneMapper*) toneMapper_;
+    builder->toneMapper(toneMapper);
 }
 
 #pragma clang diagnostic push

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

@@ -214,9 +214,9 @@ public class ColorGrading {
          *
          * The default tone mapping operator is {@link ToneMapper.ACESLegacy}.
          *
-         * The copy of the specified tone mapper is set to this builder. It is safe to delete
-         * the original tone mapper object while the copied one is held by the built ColorGrading
-         * object.
+         * The specified tone mapper must have a lifecycle that exceeds the lifetime of
+         * this builder. Since the build(Engine&) method is synchronous, it is safe to
+         * delete the tone mapper object after that finishes executing.
          *
          * @param toneMapper The tone mapping operator to apply to the HDR color buffer
          *

android/gradle.properties

@@ -1,5 +1,5 @@
 GROUP=com.google.android.filament
-VERSION_NAME=1.59.5
+VERSION_NAME=1.59.4
 
 POM_DESCRIPTION=Real-time physically based rendering engine for Android.
 

build.sh

@@ -151,7 +151,7 @@ function print_fgviewer_help {
 }
 
 # Unless explicitly specified, NDK version will be selected as highest available version within same major release chain
-FILAMENT_NDK_VERSION=${FILAMENT_NDK_VERSION:-$(cat `dirname $0`/build/common/versions | grep GITHUB_NDK_VERSION | cut -f 1 -d ".")}
+FILAMENT_NDK_VERSION=${FILAMENT_NDK_VERSION:-$(cat `dirname $0`/build/android/ndk.version | cut -f 1 -d ".")}
 
 # Requirements
 CMAKE_MAJOR=3

build/android/build.sh

@@ -1,6 +1,28 @@
 #!/bin/bash
 
-source `dirname $0`/../common/ci-check.sh
+# Usage: the first argument selects the build type:
+# - release, to build release only
+# - debug, to build debug only
+# - continuous, to build release and debug
+# - presubmit, for presubmit builds
+#
+# The default is release
+
+echo "This script is intended to run in a CI environment and may modify your current environment."
+echo "Please refer to BUILDING.md for more information."
+
+read -r -p "Do you wish to proceed (y/n)? " choice
+case "${choice}" in
+    y|Y)
+              echo "Build will proceed..."
+              ;;
+    n|N)
+          exit 0
+          ;;
+          *)
+        exit 0
+        ;;
+esac
 
 set -e
 set -x
@@ -8,6 +30,11 @@ set -x
 UNAME=`echo $(uname)`
 LC_UNAME=`echo $UNAME | tr '[:upper:]' '[:lower:]'`
 
+# build-common.sh will generate the following variables:
+#     $GENERATE_ARCHIVES
+#     $BUILD_DEBUG
+#     $BUILD_RELEASE
+source `dirname $0`/../common/ci-common.sh
 source `dirname $0`/../common/build-common.sh
 
 if [[ "$GITHUB_WORKFLOW" ]]; then

build/common/build-common.sh

@@ -1,20 +1,5 @@
 #!/bin/bash
 
-# build-common.sh will generate the following variables:
-#     $GENERATE_ARCHIVES
-#     $BUILD_DEBUG
-#     $BUILD_RELEASE
-
-# Typically a build script (build.sh) would source this script. For example,
-#   source `dirname $0`/../common/build-common.sh
-
-# Usage: the first argument selects the build type:
-# - release, to build release only
-# - debug, to build debug only
-# - continuous, to build release and debug
-# - presubmit, for presubmit builds
-#
-# The default is release
 if [[ ! "$TARGET" ]]; then
     if [[ "$1" ]]; then
         TARGET=$1

build/common/ci-check.sh

@@ -1,19 +0,0 @@
-echo "This script is intended to run in a CI environment and may modify your current environment."
-echo "Please refer to BUILDING.md for more information."
-
-read -r -p "Do you wish to proceed (y/n)? " choice
-case "${choice}" in
-    y|Y)
-	      echo "Build will proceed..."
-	      ;;
-    n|N)
-    	  exit 0
-    	  ;;
-	  *)
-        exit 0
-        ;;
-esac
-
-if [[ "$GITHUB_WORKFLOW" ]]; then
-    echo "Running workflow $GITHUB_WORKFLOW (event: $GITHUB_EVENT_NAME, action: $GITHUB_ACTION)"
-fi

build/common/ci-common.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+if [[ "$GITHUB_WORKFLOW" ]]; then
+    echo "Running workflow $GITHUB_WORKFLOW (event: $GITHUB_EVENT_NAME, action: $GITHUB_ACTION)"
+fi

build/common/get-emscripten.sh

@@ -1,22 +0,0 @@
-#!/bin/bash
-
-if [ -d "./emsdk" ]; then
-    echo "emsdk folder found. Assume emsdk has been installed."
-    cd emsdk
-    ./emsdk activate latest
-    source ./emsdk_env.sh
-    export EMSDK="$PWD"
-    cd ..
-    exit 0
-fi
-
-# Install emscripten.
-EMSDK_VERSION=${GITHUB_EMSDK_VERSION-3.1.60}
-curl -L https://github.com/emscripten-core/emsdk/archive/refs/tags/${EMSDK_VERSION}.zip > emsdk.zip
-unzip emsdk.zip ; mv emsdk-* emsdk ; cd emsdk
-./emsdk install latest
-./emsdk activate latest
-source ./emsdk_env.sh
-
-export EMSDK="$PWD"
-cd ..

build/common/versions

@@ -3,5 +3,4 @@ GITHUB_CMAKE_VERSION=3.19.5
 GITHUB_NINJA_VERSION=1.10.2
 GITHUB_MESA_VERSION=24.2.1
 GITHUB_LLVM_VERSION=16
-GITHUB_NDK_VERSION=27.0.11718014
-GITHUB_EMSDK_VERSION=3.1.60
+GITHUB_NDK_VERSION=27.0.11718014

build/ios/build.sh

@@ -1,11 +1,35 @@
 #!/bin/bash
 
-source `dirname $0`/../common/ci-check.sh
+# Usage: the first argument selects the build type:
+# - release, to build release only
+# - debug, to build debug only
+# - continuous, to build release and debug
+# - presubmit, for presubmit builds
+#
+# The default is release
+
+echo "This script is intended to run in a CI environment and may modify your current environment."
+echo "Please refer to BUILDING.md for more information."
+
+read -r -p "Do you wish to proceed (y/n)? " choice
+case "${choice}" in
+    y|Y)
+	      echo "Build will proceed..."
+	      ;;
+    n|N)
+    	  exit 0
+    	  ;;
+	  *)
+        exit 0
+        ;;
+esac
 
 set -e
 set -x
 
+source `dirname $0`/../common/ci-common.sh
 source `dirname $0`/../common/build-common.sh
+
 pushd `dirname $0`/../.. > /dev/null
 
 # If we're generating an archive for release or continuous builds, then we'll also build for the

build/linux/build.sh

@@ -1,11 +1,38 @@
 #!/bin/bash
 
-source `dirname $0`/../common/ci-check.sh
+# Usage: the first argument selects the build type:
+# - release, to build release only
+# - debug, to build debug only
+# - continuous, to build release and debug
+# - presubmit, for presubmit builds
+#
+# The default is release
+
+echo "This script is intended to run in a CI environment and may modify your current environment."
+echo "Please refer to BUILDING.md for more information."
+
+read -r -p "Do you wish to proceed (y/n)? " choice
+case "${choice}" in
+    y|Y)
+	      echo "Build will proceed..."
+	      ;;
+    n|N)
+    	  exit 0
+    	  ;;
+	  *)
+        exit 0
+        ;;
+esac
 
 set -e
 set -x
 
+# build-common.sh will generate the following variables:
+#     $GENERATE_ARCHIVES
+#     $BUILD_DEBUG
+#     $BUILD_RELEASE
+source `dirname $0`/../common/ci-common.sh
 source `dirname $0`/../common/build-common.sh
-pushd `dirname $0`/../.. > /dev/null
 
+pushd `dirname $0`/../.. > /dev/null
 ./build.sh -c $RUN_TESTS $GENERATE_ARCHIVES $BUILD_DEBUG $BUILD_RELEASE

build/mac/build.sh

@@ -1,11 +1,34 @@
 #!/bin/bash
 
-source `dirname $0`/../common/ci-check.sh
+# Usage: the first argument selects the build type:
+# - release, to build release only
+# - debug, to build debug only
+# - continuous, to build release and debug
+# - presubmit, for presubmit builds
+#
+# The default is release
+
+echo "This script is intended to run in a CI environment and may modify your current environment."
+echo "Please refer to BUILDING.md for more information."
+
+read -r -p "Do you wish to proceed (y/n)? " choice
+case "${choice}" in
+    y|Y)
+	      echo "Build will proceed..."
+	      ;;
+    n|N)
+    	  exit 0
+    	  ;;
+	  *)
+        exit 0
+        ;;
+esac
 
 set -e
 set -x
 
+source `dirname $0`/../common/ci-common.sh
 source `dirname $0`/../common/build-common.sh
-pushd `dirname $0`/../.. > /dev/null
 
+pushd `dirname $0`/../.. > /dev/null
 ./build.sh -c $RUN_TESTS $GENERATE_ARCHIVES $BUILD_DEBUG $BUILD_RELEASE

build/web/build.sh

@@ -1,10 +1,34 @@
 #!/bin/bash
 
-source `dirname $0`/../common/ci-check.sh
+# Usage: the first argument selects the build type:
+# - release, to build release only
+# - debug, to build debug only
+# - continuous, to build release and debug
+# - presubmit, for presubmit builds
+#
+# The default is release
+
+echo "This script is intended to run in a CI environment and may modify your current environment."
+echo "Please refer to BUILDING.md for more information."
+
+read -r -p "Do you wish to proceed (y/n)? " choice
+case "${choice}" in
+    y|Y)
+	      echo "Build will proceed..."
+	      ;;
+    n|N)
+    	  exit 0
+    	  ;;
+	  *)
+        exit 0
+        ;;
+esac
 
 set -e
 set -x
 
+source `dirname $0`/../common/ci-common.sh
+source `dirname $0`/ci-common.sh
 source `dirname $0`/../common/build-common.sh
 pushd `dirname $0`/../.. > /dev/null
 

build/web/ci-common.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# Install emscripten.
+curl -L https://github.com/emscripten-core/emsdk/archive/refs/tags/3.1.60.zip > emsdk.zip
+unzip emsdk.zip ; mv emsdk-* emsdk ; cd emsdk
+./emsdk install latest
+./emsdk activate latest
+source ./emsdk_env.sh
+
+export EMSDK="$PWD"
+cd ..

docs_src/src/SUMMARY.md

@@ -18,7 +18,6 @@
     - [Metal](./notes/metal_debugging.md)
     - [Vulkan](./notes/vulkan_debugging.md)
     - [SPIR-V](./notes/spirv_debugging.md)
-    - [Running with ASAN and UBSAN](./notes/asan_ubsan.md)
   - [Libraries](./notes/libs.md)
     - [bluegl](./dup/bluegl.md)
     - [bluevk](./dup/bluevk.md)

docs_src/src/notes/asan_ubsan.md

@@ -1,41 +0,0 @@
-# Running with ASAN/UBSAN
-
-## Enabling
-
-When building though build.sh, pass the `-b` flag. This sets the cmake variable
-`FILAMENT_ENABLE_ASAN_UBSAN=ON` which eventually passes `"-fsanitize=address -fsanitize=undefined"`
-to all compile and link operations.
-
-If building through CMake directly, or an IDE like CLion that doesn't use build.sh, instead pass
-`-DFILAMENT_ENABLE_ASAN_UBSAN=ON` to cmake in order to get the same result.
-
-## Getting memory leak detection on Mac
-
-Memory leak detection isn't enabled by default on MacOS. There are two issues to address, first is
-using a version of clang that supports memory leak detection and second is enabling it at runtime.
-
-The version of clang distributed by Apple (with a version like "Apple clang version 16.0.0") doesn't
-currently support leak detection at all. Instead you will need to get or build a different LLVM,
-such as the one distributed through homebrew and get CMake to use that instead.
-
-Then during runtime you'll need to have the environment variable `ASAN_OPTIONS` include the option
-`detect_leaks=1`. Multiple `ASAN_OPTIONS` values are concatenated with `:`.
-
-## Getting memory leak output in CLion
-
-### Setting variables
-
-Under `Settings | Build, Execution, Deployment | Dynamic Analysis Tools | Sanitizers` there is an
-ASAN Settings field that overrides whatever other `ASAN_OPTIONS` you might set elsewhere, so you
-must use that instead of setting it through your Run/Debug Configuration.
-
-To pass `-DFILAMENT_ENABLE_ASAN_UBSAN=ON` to CMake you'll want to create a new CMake Profile and
-pass it as a CMake argument.
-
-### Avoiding losing output
-
-CMake will consume ASAN output and display it through a separate "Sanitizers" tab. Unfortunately
-certain leak detection errors that interrupt the executable seem to not show up in this tab, but are
-still removed from the user-visible console output. If this is happening and you need to see the
-unfiltered console output you'll need to go to `Settings | Build, Execution, Deployment | Dynamic
-Analysis Tools | Sanitizers` and uncheck "Use visual representation for Sanitizer's output".

filament/backend/CMakeLists.txt

@@ -5,6 +5,18 @@ set(TARGET backend)
 set(PUBLIC_HDR_DIR include)
 set(GENERATION_ROOT ${CMAKE_CURRENT_BINARY_DIR})
 
+# ==================================================================================================
+# Compilation options
+# ==================================================================================================
+#
+set(BACKEND_SANITIZATION "" CACHE STRING "Sanitization option")
+set_property(CACHE BACKEND_SANITIZATION PROPERTY STRINGS ";ASAN")
+
+set(BACKEND_SANITIZERS)
+if (BACKEND_SANITIZATION STREQUAL "ASAN")
+    set(BACKEND_SANITIZERS -fsanitize=address)
+endif()
+
 # ==================================================================================================
 # Sources and headers
 # ==================================================================================================
@@ -472,6 +484,7 @@ target_compile_options(${TARGET} PRIVATE
         ${OSMESA_COMPILE_FLAGS}
         $<$<CONFIG:Release>:${OPTIMIZATION_FLAGS}>
         $<$<AND:$<PLATFORM_ID:Darwin>,$<CONFIG:Release>>:${DARWIN_OPTIMIZATION_FLAGS}>
+        ${BACKEND_SANITIZERS}
 )
 
 if (FILAMENT_SUPPORTS_METAL)
@@ -482,6 +495,8 @@ if (FILAMENT_SUPPORTS_WEBGPU)
     target_compile_definitions(${TARGET} PRIVATE $<$<BOOL:${FILAMENT_WEBGPU_IMMEDIATE_ERROR_HANDLING}>:FILAMENT_WEBGPU_IMMEDIATE_ERROR_HANDLING>)
 endif()
 
+target_link_options(${TARGET} PRIVATE ${BACKEND_SANITIZERS})
+
 target_link_libraries(${TARGET} PRIVATE
         ${OSMESA_LINKER_FLAGS}
         $<$<AND:$<PLATFORM_ID:Linux>,$<CONFIG:Release>>:${LINUX_LINKER_OPTIMIZATION_FLAGS}>
@@ -551,6 +566,8 @@ if (APPLE AND NOT IOS)
          test/test_RenderExternalImage.cpp)
     add_library(backend_test STATIC ${BACKEND_TEST_SRC})
     target_link_libraries(backend_test PUBLIC ${BACKEND_TEST_LIBS})
+    target_compile_options(backend_test PRIVATE ${BACKEND_SANITIZERS})
+    target_link_options(backend_test PRIVATE ${BACKEND_SANITIZERS})
 
     set(BACKEND_TEST_DEPS
             OSDependent
@@ -589,6 +606,7 @@ if (APPLE AND NOT IOS)
        # linker from removing "unused" symbols.
        target_link_libraries(backend_test_mac PRIVATE -force_load backend_test)
        set_target_properties(backend_test_mac PROPERTIES FOLDER Tests)
+       target_link_options(backend_test_mac PRIVATE ${BACKEND_SANITIZERS})
 
        # This is needed after XCode 15.3
        set_target_properties(backend_test_mac PROPERTIES BUILD_WITH_INSTALL_RPATH TRUE)
@@ -598,6 +616,8 @@ endif()
 
 if (LINUX)
     add_executable(backend_test_linux test/linux_runner.cpp ${BACKEND_TEST_SRC})
+    target_compile_options(backend_test_linux PRIVATE ${BACKEND_SANITIZERS})
+    target_link_options(backend_test_linux PRIVATE ${BACKEND_SANITIZERS})
     target_link_libraries(backend_test_linux PRIVATE ${BACKEND_TEST_LIBS})
     set_target_properties(backend_test_linux PROPERTIES FOLDER Tests)
 endif()

filament/backend/include/backend/DriverEnums.h

@@ -30,17 +30,16 @@
 #include <utils/compiler.h>
 #include <utils/debug.h>
 #include <utils/ostream.h>
-#include <utils/StaticString.h>
 
 #include <math/vec4.h>
 
 #include <array>
 #include <type_traits>
 #include <variant>
-#include <string_view>
 
 #include <stddef.h>
 #include <stdint.h>
+#include <utils/StaticString.h>
 
 /**
  * Types and enums used by filament's driver.
@@ -160,7 +159,7 @@ enum class TimerQueryResult : int8_t {
     AVAILABLE = 1,  // result is available
 };
 
- constexpr std::string_view to_string(Backend const backend) noexcept {
+static constexpr const char* backendToString(Backend backend) {
     switch (backend) {
         case Backend::NOOP:
             return "Noop";
@@ -172,11 +171,9 @@ enum class TimerQueryResult : int8_t {
             return "Metal";
         case Backend::WEBGPU:
             return "WebGPU";
-        case Backend::DEFAULT:
-            return "Default";
-            break;
+        default:
+            return "Unknown";
     }
-    return "Unknown";
 }
 
 /**
@@ -193,7 +190,7 @@ enum class ShaderLanguage {
     WGSL = 5,
 };
 
-constexpr const char* shaderLanguageToString(ShaderLanguage shaderLanguage) noexcept {
+static constexpr const char* shaderLanguageToString(ShaderLanguage shaderLanguage) {
     switch (shaderLanguage) {
         case ShaderLanguage::ESSL1:
             return "ESSL 1.0";
@@ -208,7 +205,6 @@ constexpr const char* shaderLanguageToString(ShaderLanguage shaderLanguage) noex
         case ShaderLanguage::WGSL:
             return "WGSL";
     }
-    return "UNKNOWN";
 }
 
 enum class ShaderStage : uint8_t {
@@ -226,7 +222,7 @@ enum class ShaderStageFlags : uint8_t {
     ALL_SHADER_STAGE_FLAGS = VERTEX | FRAGMENT | COMPUTE
 };
 
- constexpr bool hasShaderType(ShaderStageFlags flags, ShaderStage type) noexcept {
+static inline constexpr bool hasShaderType(ShaderStageFlags flags, ShaderStage type) noexcept {
     switch (type) {
         case ShaderStage::VERTEX:
             return bool(uint8_t(flags) & uint8_t(ShaderStageFlags::VERTEX));
@@ -237,114 +233,14 @@ enum class ShaderStageFlags : uint8_t {
     }
 }
 
-enum class TextureType : uint8_t {
-    FLOAT,
-    INT,
-    UINT,
-    DEPTH,
-    STENCIL,
-    DEPTH_STENCIL
+enum class DescriptorType : uint8_t {
+    UNIFORM_BUFFER,
+    SHADER_STORAGE_BUFFER,
+    SAMPLER,
+    INPUT_ATTACHMENT,
+    SAMPLER_EXTERNAL
 };
 
- constexpr std::string_view to_string(TextureType type) noexcept {
-    switch (type) {
-        case TextureType::FLOAT:            return "FLOAT";
-        case TextureType::INT:              return "INT";
-        case TextureType::UINT:             return "UINT";
-        case TextureType::DEPTH:            return "DEPTH";
-        case TextureType::STENCIL:          return "STENCIL";
-        case TextureType::DEPTH_STENCIL:    return "DEPTH_STENCIL";
-    }
-    return "UNKNOWN";
-}
-
- enum class DescriptorType : uint8_t {
-     SAMPLER_2D_FLOAT,
-     SAMPLER_2D_INT,
-     SAMPLER_2D_UINT,
-     SAMPLER_2D_DEPTH,
-
-     SAMPLER_2D_ARRAY_FLOAT,
-     SAMPLER_2D_ARRAY_INT,
-     SAMPLER_2D_ARRAY_UINT,
-     SAMPLER_2D_ARRAY_DEPTH,
-
-     SAMPLER_CUBE_FLOAT,
-     SAMPLER_CUBE_INT,
-     SAMPLER_CUBE_UINT,
-     SAMPLER_CUBE_DEPTH,
-
-     SAMPLER_CUBE_ARRAY_FLOAT,
-     SAMPLER_CUBE_ARRAY_INT,
-     SAMPLER_CUBE_ARRAY_UINT,
-     SAMPLER_CUBE_ARRAY_DEPTH,
-
-     SAMPLER_3D_FLOAT,
-     SAMPLER_3D_INT,
-     SAMPLER_3D_UINT,
-
-     SAMPLER_EXTERNAL,
-     UNIFORM_BUFFER,
-     SHADER_STORAGE_BUFFER,
-     INPUT_ATTACHMENT,
- };
-
- constexpr bool isDepthDescriptor(DescriptorType const type) noexcept {
-     switch (type) {
-         case DescriptorType::SAMPLER_2D_DEPTH:
-         case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-         case DescriptorType::SAMPLER_CUBE_DEPTH:
-         case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-             return true;
-         default: ;
-     }
-     return false;
- }
-
- constexpr bool isFloatDescriptor(DescriptorType const type) noexcept {
-     switch (type) {
-         case DescriptorType::SAMPLER_2D_FLOAT:
-         case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-         case DescriptorType::SAMPLER_CUBE_FLOAT:
-         case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-         case DescriptorType::SAMPLER_3D_FLOAT:
-             return true;
-         default: ;
-     }
-     return false;
- }
-
-constexpr std::string_view to_string(DescriptorType type) noexcept {
-    #define DESCRIPTOR_TYPE_CASE(TYPE)  case DescriptorType::TYPE: return #TYPE;
-    switch (type) {
-        DESCRIPTOR_TYPE_CASE(SAMPLER_2D_FLOAT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_2D_INT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_2D_UINT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_2D_DEPTH)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_2D_ARRAY_FLOAT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_2D_ARRAY_INT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_2D_ARRAY_UINT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_2D_ARRAY_DEPTH)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_CUBE_FLOAT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_CUBE_INT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_CUBE_UINT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_CUBE_DEPTH)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_CUBE_ARRAY_FLOAT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_CUBE_ARRAY_INT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_CUBE_ARRAY_UINT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_CUBE_ARRAY_DEPTH)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_3D_FLOAT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_3D_INT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_3D_UINT)
-        DESCRIPTOR_TYPE_CASE(SAMPLER_EXTERNAL)
-        DESCRIPTOR_TYPE_CASE(UNIFORM_BUFFER)
-        DESCRIPTOR_TYPE_CASE(SHADER_STORAGE_BUFFER)
-        DESCRIPTOR_TYPE_CASE(INPUT_ATTACHMENT)
-    }
-    return "UNKNOWN";
-    #undef DESCRIPTOR_TYPE_CASE
-}
-
 enum class DescriptorFlags : uint8_t {
     NONE = 0x00,
     DYNAMIC_OFFSET = 0x01
@@ -355,13 +251,6 @@ using descriptor_set_t = uint8_t;
 using descriptor_binding_t = uint8_t;
 
 struct DescriptorSetLayoutBinding {
-    static bool isSampler(DescriptorType type) noexcept {
-        return int(type) <= int(DescriptorType::SAMPLER_EXTERNAL);
-    }
-    static bool isBuffer(DescriptorType type) noexcept {
-        return type == DescriptorType::UNIFORM_BUFFER ||
-               type == DescriptorType::SHADER_STORAGE_BUFFER;
-    }
     DescriptorType type;
     ShaderStageFlags stageFlags;
     descriptor_binding_t binding;
@@ -372,7 +261,7 @@ struct DescriptorSetLayoutBinding {
     //  no uninitialized padding bytes.
     //    uint8_t externalSamplerDataIndex = EXTERNAL_SAMPLER_DATA_INDEX_UNUSED;
 
-    friend bool operator==(DescriptorSetLayoutBinding const& lhs,
+    friend inline bool operator==(DescriptorSetLayoutBinding const& lhs,
             DescriptorSetLayoutBinding const& rhs) noexcept {
         return lhs.type == rhs.type &&
                lhs.flags == rhs.flags &&
@@ -405,7 +294,7 @@ enum class TargetBufferFlags : uint32_t {
     ALL = COLOR_ALL | DEPTH | STENCIL       //!< Color, depth and stencil buffer selected.
 };
 
- constexpr TargetBufferFlags getTargetBufferFlagsAt(size_t index) noexcept {
+inline constexpr TargetBufferFlags getTargetBufferFlagsAt(size_t index) noexcept {
     if (index == 0u) return TargetBufferFlags::COLOR0;
     if (index == 1u) return TargetBufferFlags::COLOR1;
     if (index == 2u) return TargetBufferFlags::COLOR2;
@@ -562,24 +451,6 @@ enum class SamplerType : uint8_t {
     SAMPLER_CUBEMAP_ARRAY,  //!< Cube map array texture (feature level 2)
 };
 
-constexpr std::string_view to_string(SamplerType const type) noexcept {
-    switch (type) {
-        case SamplerType::SAMPLER_2D:
-            return "SAMPLER_2D";
-        case SamplerType::SAMPLER_2D_ARRAY:
-            return "SAMPLER_2D_ARRAY";
-        case SamplerType::SAMPLER_CUBEMAP:
-            return "SAMPLER_CUBEMAP";
-        case SamplerType::SAMPLER_EXTERNAL:
-            return "SAMPLER_EXTERNAL";
-        case SamplerType::SAMPLER_3D:
-            return "SAMPLER_3D";
-        case SamplerType::SAMPLER_CUBEMAP_ARRAY:
-            return "SAMPLER_CUBEMAP_ARRAY";
-    }
-    return "Unknown";
-}
-
 //! Subpass type
 enum class SubpassType : uint8_t {
     SUBPASS_INPUT
@@ -593,20 +464,6 @@ enum class SamplerFormat : uint8_t {
     SHADOW = 3      //!< shadow sampler (PCF)
 };
 
-constexpr std::string_view to_string(SamplerFormat const format) noexcept {
-    switch (format) {
-        case SamplerFormat::INT:
-            return "INT";
-        case SamplerFormat::UINT:
-            return "UINT";
-        case SamplerFormat::FLOAT:
-            return "FLOAT";
-        case SamplerFormat::SHADOW:
-            return "SHADOW";
-    }
-    return "Unknown";
-}
-
 /**
  * Supported element types
  */
@@ -907,8 +764,6 @@ enum class TextureFormat : uint16_t {
     SRGB_ALPHA_BPTC_UNORM,  // BC7 sRGB
 };
 
-TextureType getTextureType(TextureFormat format) noexcept;
-
 //! Bitmask describing the intended Texture Usage
 enum class TextureUsage : uint16_t {
     NONE                = 0x0000,
@@ -936,7 +791,7 @@ enum class TextureSwizzle : uint8_t {
 };
 
 //! returns whether this format a depth format
- constexpr bool isDepthFormat(TextureFormat format) noexcept {
+static constexpr bool isDepthFormat(TextureFormat format) noexcept {
     switch (format) {
         case TextureFormat::DEPTH32F:
         case TextureFormat::DEPTH24:
@@ -949,7 +804,7 @@ enum class TextureSwizzle : uint8_t {
     }
 }
 
- constexpr bool isStencilFormat(TextureFormat format) noexcept {
+static constexpr bool isStencilFormat(TextureFormat format) noexcept {
     switch (format) {
         case TextureFormat::STENCIL8:
         case TextureFormat::DEPTH24_STENCIL8:
@@ -960,7 +815,7 @@ enum class TextureSwizzle : uint8_t {
     }
 }
 
- constexpr bool isColorFormat(TextureFormat format) noexcept {
+inline constexpr bool isColorFormat(TextureFormat format) noexcept {
     switch (format) {
         // Standard color formats
         case TextureFormat::R8:
@@ -987,7 +842,7 @@ enum class TextureSwizzle : uint8_t {
     return false;
 }
 
- constexpr bool isUnsignedIntFormat(TextureFormat format) {
+static constexpr bool isUnsignedIntFormat(TextureFormat format) {
     switch (format) {
         case TextureFormat::R8UI:
         case TextureFormat::R16UI:
@@ -1008,7 +863,7 @@ enum class TextureSwizzle : uint8_t {
     }
 }
 
- constexpr bool isSignedIntFormat(TextureFormat format) {
+static constexpr bool isSignedIntFormat(TextureFormat format) {
     switch (format) {
         case TextureFormat::R8I:
         case TextureFormat::R16I:
@@ -1030,35 +885,35 @@ enum class TextureSwizzle : uint8_t {
 }
 
 //! returns whether this format is a compressed format
- constexpr bool isCompressedFormat(TextureFormat format) noexcept {
+static constexpr bool isCompressedFormat(TextureFormat format) noexcept {
     return format >= TextureFormat::EAC_R11;
 }
 
 //! returns whether this format is an ETC2 compressed format
- constexpr bool isETC2Compression(TextureFormat format) noexcept {
+static constexpr bool isETC2Compression(TextureFormat format) noexcept {
     return format >= TextureFormat::EAC_R11 && format <= TextureFormat::ETC2_EAC_SRGBA8;
 }
 
 //! returns whether this format is an S3TC compressed format
- constexpr bool isS3TCCompression(TextureFormat format) noexcept {
+static constexpr bool isS3TCCompression(TextureFormat format) noexcept {
     return format >= TextureFormat::DXT1_RGB && format <= TextureFormat::DXT5_SRGBA;
 }
 
- constexpr bool isS3TCSRGBCompression(TextureFormat format) noexcept {
+static constexpr bool isS3TCSRGBCompression(TextureFormat format) noexcept {
     return format >= TextureFormat::DXT1_SRGB && format <= TextureFormat::DXT5_SRGBA;
 }
 
 //! returns whether this format is an RGTC compressed format
- constexpr bool isRGTCCompression(TextureFormat format) noexcept {
+static constexpr bool isRGTCCompression(TextureFormat format) noexcept {
     return format >= TextureFormat::RED_RGTC1 && format <= TextureFormat::SIGNED_RED_GREEN_RGTC2;
 }
 
 //! returns whether this format is an BPTC compressed format
-constexpr bool isBPTCCompression(TextureFormat format) noexcept {
+static constexpr bool isBPTCCompression(TextureFormat format) noexcept {
     return format >= TextureFormat::RGB_BPTC_SIGNED_FLOAT && format <= TextureFormat::SRGB_ALPHA_BPTC_UNORM;
 }
 
-constexpr bool isASTCCompression(TextureFormat format) noexcept {
+static constexpr bool isASTCCompression(TextureFormat format) noexcept {
     return format >= TextureFormat::RGBA_ASTC_4x4 && format <= TextureFormat::SRGB8_ALPHA8_ASTC_12x12;
 }
 
@@ -1183,19 +1038,15 @@ struct SamplerParams {             // NOLINT
         }
     };
 
-    bool isFiltered() const noexcept {
-        return filterMag != SamplerMagFilter::NEAREST || filterMin != SamplerMinFilter::NEAREST;
-    }
-
 private:
-    friend bool operator == (SamplerParams lhs, SamplerParams rhs) noexcept {
-        return EqualTo{}(lhs, rhs);
+    friend inline bool operator == (SamplerParams lhs, SamplerParams rhs) noexcept {
+        return SamplerParams::EqualTo{}(lhs, rhs);
     }
-    friend bool operator != (SamplerParams lhs, SamplerParams rhs) noexcept {
-        return  !EqualTo{}(lhs, rhs);
+    friend inline bool operator != (SamplerParams lhs, SamplerParams rhs) noexcept {
+        return  !SamplerParams::EqualTo{}(lhs, rhs);
     }
-    friend bool operator < (SamplerParams lhs, SamplerParams rhs) noexcept {
-        return LessThan{}(lhs, rhs);
+    friend inline bool operator < (SamplerParams lhs, SamplerParams rhs) noexcept {
+        return SamplerParams::LessThan{}(lhs, rhs);
     }
 };
 
@@ -1245,15 +1096,15 @@ struct SamplerYcbcrConversion {// NOLINT
     };
 
 private:
-    friend bool operator == (SamplerYcbcrConversion lhs, SamplerYcbcrConversion rhs)
+    friend inline bool operator == (SamplerYcbcrConversion lhs, SamplerYcbcrConversion rhs)
             noexcept {
         return SamplerYcbcrConversion::EqualTo{}(lhs, rhs);
     }
-    friend bool operator != (SamplerYcbcrConversion lhs, SamplerYcbcrConversion rhs)
+    friend inline bool operator != (SamplerYcbcrConversion lhs, SamplerYcbcrConversion rhs)
             noexcept {
         return  !SamplerYcbcrConversion::EqualTo{}(lhs, rhs);
     }
-    friend bool operator < (SamplerYcbcrConversion lhs, SamplerYcbcrConversion rhs)
+    friend inline bool operator < (SamplerYcbcrConversion lhs, SamplerYcbcrConversion rhs)
             noexcept {
         return SamplerYcbcrConversion::LessThan{}(lhs, rhs);
     }

filament/backend/include/backend/Program.h

@@ -44,8 +44,8 @@ public:
 
     struct Descriptor {
         utils::CString name;
-        DescriptorType type;
-        descriptor_binding_t binding;
+        backend::DescriptorType type;
+        backend::descriptor_binding_t binding;
     };
 
     struct SpecializationConstant {

filament/backend/src/BackendUtils.cpp

@@ -18,8 +18,6 @@
 
 #include "DataReshaper.h"
 
-#include <backend/DriverEnums.h>
-
 #include <utils/CString.h>
 
 #include <string_view>
@@ -225,143 +223,6 @@ size_t getFormatSize(TextureFormat format) noexcept {
     }
 }
 
-TextureType getTextureType(TextureFormat const format) noexcept {
-    switch (format) {
-        case TextureFormat::UNUSED:
-            // should not happen
-            return TextureType::FLOAT;
-
-        case TextureFormat::R8:
-        case TextureFormat::R16F:
-        case TextureFormat::RG8:
-        case TextureFormat::RGB565:
-        case TextureFormat::RGB5_A1:
-        case TextureFormat::RGBA4:
-        case TextureFormat::R32F:
-        case TextureFormat::RGB8:
-        case TextureFormat::SRGB8:
-        case TextureFormat::RG16F:
-        case TextureFormat::R11F_G11F_B10F:
-        case TextureFormat::RGB9_E5:
-        case TextureFormat::RGBA8:
-        case TextureFormat::SRGB8_A8:
-        case TextureFormat::RGB10_A2:
-        case TextureFormat::RGB16F:
-        case TextureFormat::RG32F:
-        case TextureFormat::RGBA16F:
-        case TextureFormat::RGB32F:
-        case TextureFormat::RGBA32F:
-            return TextureType::FLOAT;
-
-        case TextureFormat::R8_SNORM:
-        case TextureFormat::RG8_SNORM:
-        case TextureFormat::RGB8_SNORM:
-        case TextureFormat::RGBA8_SNORM:
-            // SNORM are treated as float
-            return TextureType::FLOAT;
-
-        case TextureFormat::R8UI:
-        case TextureFormat::R16UI:
-        case TextureFormat::RG8UI:
-        case TextureFormat::RGB8UI:
-        case TextureFormat::R32UI:
-        case TextureFormat::RG16UI:
-        case TextureFormat::RGBA8UI:
-        case TextureFormat::RGB16UI:
-        case TextureFormat::RG32UI:
-        case TextureFormat::RGBA16UI:
-        case TextureFormat::RGB32UI:
-        case TextureFormat::RGBA32UI:
-            return TextureType::UINT;
-
-        case TextureFormat::R8I:
-        case TextureFormat::R16I:
-        case TextureFormat::RG8I:
-        case TextureFormat::RGB8I:
-        case TextureFormat::R32I:
-        case TextureFormat::RG16I:
-        case TextureFormat::RGBA8I:
-        case TextureFormat::RGB16I:
-        case TextureFormat::RG32I:
-        case TextureFormat::RGBA16I:
-        case TextureFormat::RGB32I:
-        case TextureFormat::RGBA32I:
-            return TextureType::INT;
-
-        case TextureFormat::DEPTH16:
-        case TextureFormat::DEPTH24:
-        case TextureFormat::DEPTH32F:
-            return TextureType::DEPTH;
-
-        case TextureFormat::STENCIL8:
-            return TextureType::STENCIL;
-
-        case TextureFormat::DEPTH24_STENCIL8:
-        case TextureFormat::DEPTH32F_STENCIL8:
-            return TextureType::DEPTH_STENCIL;
-
-        // Compressed formats ---------------------------------------------------------------------
-
-        case TextureFormat::EAC_RG11:
-        case TextureFormat::EAC_RG11_SIGNED:
-        case TextureFormat::ETC2_EAC_RGBA8:
-        case TextureFormat::ETC2_EAC_SRGBA8:
-        case TextureFormat::EAC_R11:
-        case TextureFormat::EAC_R11_SIGNED:
-        case TextureFormat::ETC2_RGB8:
-        case TextureFormat::ETC2_SRGB8:
-        case TextureFormat::ETC2_RGB8_A1:
-        case TextureFormat::ETC2_SRGB8_A1:
-        case TextureFormat::DXT1_RGB:
-        case TextureFormat::DXT1_RGBA:
-        case TextureFormat::DXT1_SRGB:
-        case TextureFormat::DXT1_SRGBA:
-        case TextureFormat::DXT3_RGBA:
-        case TextureFormat::DXT3_SRGBA:
-        case TextureFormat::DXT5_RGBA:
-        case TextureFormat::DXT5_SRGBA:
-        case TextureFormat::RED_RGTC1:
-        case TextureFormat::SIGNED_RED_RGTC1:
-        case TextureFormat::RED_GREEN_RGTC2:
-        case TextureFormat::SIGNED_RED_GREEN_RGTC2:
-        case TextureFormat::RGB_BPTC_SIGNED_FLOAT:
-        case TextureFormat::RGB_BPTC_UNSIGNED_FLOAT:
-        case TextureFormat::RGBA_BPTC_UNORM:
-        case TextureFormat::SRGB_ALPHA_BPTC_UNORM:
-        case TextureFormat::RGBA_ASTC_4x4:
-        case TextureFormat::RGBA_ASTC_5x4:
-        case TextureFormat::RGBA_ASTC_5x5:
-        case TextureFormat::RGBA_ASTC_6x5:
-        case TextureFormat::RGBA_ASTC_6x6:
-        case TextureFormat::RGBA_ASTC_8x5:
-        case TextureFormat::RGBA_ASTC_8x6:
-        case TextureFormat::RGBA_ASTC_8x8:
-        case TextureFormat::RGBA_ASTC_10x5:
-        case TextureFormat::RGBA_ASTC_10x6:
-        case TextureFormat::RGBA_ASTC_10x8:
-        case TextureFormat::RGBA_ASTC_10x10:
-        case TextureFormat::RGBA_ASTC_12x10:
-        case TextureFormat::RGBA_ASTC_12x12:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_4x4:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_5x4:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_5x5:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_6x5:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_6x6:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_8x5:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_8x6:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_8x8:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_10x5:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_10x6:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_10x8:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_10x10:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_12x10:
-        case TextureFormat::SRGB8_ALPHA8_ASTC_12x12:
-            return TextureType::FLOAT;
-    }
-
-    return TextureType::FLOAT;
-}
-
 size_t getFormatComponentCount(TextureFormat format) noexcept {
     switch (format) {
         case TextureFormat::R8:

filament/backend/src/CommandStream.cpp

@@ -84,7 +84,7 @@ void CommandStream::execute(void* buffer) {
 
     Profiler profiler;
 
-    if (SYSTRACE_TAG) {
+    if constexpr (SYSTRACE_TAG) {
         if (UTILS_UNLIKELY(mUsePerformanceCounter)) {
             // we want to remove all this when tracing is completely disabled
             profiler.resetEvents(Profiler::EV_CPU_CYCLES  | Profiler::EV_BPU_MISSES);
@@ -100,7 +100,7 @@ void CommandStream::execute(void* buffer) {
         }
     });
 
-    if (SYSTRACE_TAG) {
+    if constexpr (SYSTRACE_TAG) {
         if (UTILS_UNLIKELY(mUsePerformanceCounter)) {
             // we want to remove all this when tracing is completely disabled
             profiler.stop();

filament/backend/src/metal/MetalDriver.mm

@@ -672,8 +672,22 @@ void MetalDriver::createTimerQueryR(Handle<HwTimerQuery> tqh, int) {
     // nothing to do, timer query was constructed in createTimerQueryS
 }
 
-UTILS_UNUSED
-static const char* toString(ShaderStageFlags flags) {
+const char* toString(DescriptorType type) {
+    switch (type) {
+        case DescriptorType::UNIFORM_BUFFER:
+            return "UNIFORM_BUFFER";
+        case DescriptorType::SHADER_STORAGE_BUFFER:
+            return "SHADER_STORAGE_BUFFER";
+        case DescriptorType::SAMPLER:
+            return "SAMPLER";
+        case DescriptorType::INPUT_ATTACHMENT:
+            return "INPUT_ATTACHMENT";
+        case DescriptorType::SAMPLER_EXTERNAL:
+            return "SAMPLER_EXTERNAL";
+    }
+}
+
+const char* toString(ShaderStageFlags flags) {
     std::vector<const char*> stages;
     if (any(flags & ShaderStageFlags::VERTEX)) {
         stages.push_back("VERTEX");

filament/backend/src/metal/MetalEnums.h

@@ -185,7 +185,6 @@ inline MTLPixelFormat getMetalFormat(PixelDataFormat format, PixelDataType type)
     CONVERT(RGBA_INTEGER, UINT, RGBA32Uint);
     CONVERT(RGBA_INTEGER, INT, RGBA32Sint);
     CONVERT(RGBA, FLOAT, RGBA32Float);
-    CONVERT(DEPTH_COMPONENT, FLOAT, Depth32Float);
     #undef CONVERT
 
     return MTLPixelFormatInvalid;

filament/backend/src/metal/MetalHandles.mm

@@ -1356,25 +1356,7 @@ id<MTLArgumentEncoder> MetalDescriptorSetLayout::getArgumentEncoderSlow(id<MTLDe
                 [arguments addObject:bufferArgument];
                 break;
             }
-            case DescriptorType::SAMPLER_2D_FLOAT:
-            case DescriptorType::SAMPLER_2D_INT:
-            case DescriptorType::SAMPLER_2D_UINT:
-            case DescriptorType::SAMPLER_2D_DEPTH:
-            case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_2D_ARRAY_INT:
-            case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-            case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_INT:
-            case DescriptorType::SAMPLER_CUBE_UINT:
-            case DescriptorType::SAMPLER_CUBE_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_3D_FLOAT:
-            case DescriptorType::SAMPLER_3D_INT:
-            case DescriptorType::SAMPLER_3D_UINT:
+            case DescriptorType::SAMPLER:
             case DescriptorType::SAMPLER_EXTERNAL: {
                 MTLArgumentDescriptor* textureArgument = [MTLArgumentDescriptor argumentDescriptor];
                 textureArgument.index = binding.binding * 2;
@@ -1490,25 +1472,7 @@ id<MTLBuffer> MetalDescriptorSet::finalizeAndGetBuffer(MetalDriver* driver, Shad
                            atIndex:binding.binding * 2];
                 break;
             }
-            case DescriptorType::SAMPLER_2D_FLOAT:
-            case DescriptorType::SAMPLER_2D_INT:
-            case DescriptorType::SAMPLER_2D_UINT:
-            case DescriptorType::SAMPLER_2D_DEPTH:
-            case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_2D_ARRAY_INT:
-            case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-            case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_INT:
-            case DescriptorType::SAMPLER_CUBE_UINT:
-            case DescriptorType::SAMPLER_CUBE_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_3D_FLOAT:
-            case DescriptorType::SAMPLER_3D_INT:
-            case DescriptorType::SAMPLER_3D_UINT:
+            case DescriptorType::SAMPLER:
             case DescriptorType::SAMPLER_EXTERNAL: {
                 auto found = textures.find(binding.binding);
                 if (found == textures.end()) {

filament/backend/src/opengl/BindingMap.h

@@ -69,8 +69,9 @@ public:
         assert_invariant(set < MAX_DESCRIPTOR_SET_COUNT);
         assert_invariant(binding < MAX_DESCRIPTOR_COUNT);
         assert_invariant(entry.binding < 128); // we reserve 1 bit for the type right now
-        mStorage[set][binding] = { uint8_t(entry.binding),
-                                   DescriptorSetLayoutBinding::isSampler(entry.type) };
+        mStorage[set][binding] = { (uint8_t)entry.binding,
+                                   entry.type == DescriptorType::SAMPLER ||
+                                   entry.type == DescriptorType::SAMPLER_EXTERNAL };
         mActiveDescriptors[set].set(binding);
     }
 

filament/backend/src/opengl/GLDescriptorSet.cpp

@@ -95,26 +95,7 @@ GLDescriptorSet::GLDescriptorSet(OpenGLContext& gl, DescriptorSetLayoutHandle ds
                 }
                 break;
             }
-
-            case DescriptorType::SAMPLER_2D_FLOAT:
-            case DescriptorType::SAMPLER_2D_INT:
-            case DescriptorType::SAMPLER_2D_UINT:
-            case DescriptorType::SAMPLER_2D_DEPTH:
-            case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_2D_ARRAY_INT:
-            case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-            case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_INT:
-            case DescriptorType::SAMPLER_CUBE_UINT:
-            case DescriptorType::SAMPLER_CUBE_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_3D_FLOAT:
-            case DescriptorType::SAMPLER_3D_INT:
-            case DescriptorType::SAMPLER_3D_UINT:
+            case DescriptorType::SAMPLER:
             case DescriptorType::SAMPLER_EXTERNAL:
                 if (UTILS_UNLIKELY(gl.isES2())) {
                     desc.emplace<SamplerGLES2>();

filament/backend/src/opengl/OpenGLProgram.cpp

@@ -175,25 +175,7 @@ void OpenGLProgram::initializeProgramState(OpenGLContext& context, GLuint progra
                     }
                     break;
                 }
-                case DescriptorType::SAMPLER_2D_FLOAT:
-                case DescriptorType::SAMPLER_2D_INT:
-                case DescriptorType::SAMPLER_2D_UINT:
-                case DescriptorType::SAMPLER_2D_DEPTH:
-                case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-                case DescriptorType::SAMPLER_2D_ARRAY_INT:
-                case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-                case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-                case DescriptorType::SAMPLER_CUBE_FLOAT:
-                case DescriptorType::SAMPLER_CUBE_INT:
-                case DescriptorType::SAMPLER_CUBE_UINT:
-                case DescriptorType::SAMPLER_CUBE_DEPTH:
-                case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-                case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-                case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-                case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-                case DescriptorType::SAMPLER_3D_FLOAT:
-                case DescriptorType::SAMPLER_3D_INT:
-                case DescriptorType::SAMPLER_3D_UINT:
+                case DescriptorType::SAMPLER:
                 case DescriptorType::SAMPLER_EXTERNAL: {
                     if (!entry.name.empty()) {
                         GLint const loc = glGetUniformLocation(program, entry.name.c_str());

filament/backend/src/vulkan/VulkanConstants.h

@@ -152,12 +152,12 @@ static_assert(FVK_ENABLED(FVK_DEBUG_VALIDATION));
 #elif FVK_ENABLED(FVK_DEBUG_SYSTRACE)
 
     #include <utils/Systrace.h>
-    
+
     #define FVK_SYSTRACE_CONTEXT()      SYSTRACE_CONTEXT()
     #define FVK_SYSTRACE_START(marker)  SYSTRACE_NAME_BEGIN(marker)
     #define FVK_SYSTRACE_END()          SYSTRACE_NAME_END()
-    #define FVK_SYSTRACE_SCOPE()        SYSTRACE_NAME(__func__)
-    #define FVK_PROFILE_MARKER(marker)  FVK_SYSTRACE_SCOPE()
+    #define FVK_SYSTRACE_SCOPE()        SYSTRACE_CALL()
+    #define FVK_PROFILE_MARKER(marker)  SYSTRACE_CALL()
 
 #else
     #define FVK_SYSTRACE_CONTEXT()

filament/backend/src/vulkan/VulkanContext.h

@@ -142,10 +142,6 @@ public:
         return mPortabilitySubsetFeatures.imageView2DOn3DImage == VK_TRUE;
     }
 
-    inline bool isUnifiedMemoryArchitecture() const noexcept {
-        return mIsUnifiedMemoryArchitecture;
-    }
-
 private:
     VkPhysicalDeviceMemoryProperties mMemoryProperties = {};
     VkPhysicalDeviceProperties2 mPhysicalDeviceProperties = {
@@ -168,7 +164,6 @@ private:
     bool mDebugUtilsSupported = false;
     bool mLazilyAllocatedMemorySupported = false;
     bool mProtectedMemorySupported = false;
-    bool mIsUnifiedMemoryArchitecture = false;
 
     fvkutils::VkFormatList mDepthStencilFormats;
     fvkutils::VkFormatList mBlittableDepthStencilFormats;

filament/backend/src/vulkan/VulkanHandles.cpp

@@ -93,26 +93,7 @@ BitmaskGroup fromBackendLayout(DescriptorSetLayout const& layout) {
             case DescriptorType::SAMPLER_EXTERNAL:
                 fromStageFlags(binding.stageFlags, binding.binding, mask.externalSampler);
                 UTILS_FALLTHROUGH;
-
-            case DescriptorType::SAMPLER_2D_FLOAT:
-            case DescriptorType::SAMPLER_2D_INT:
-            case DescriptorType::SAMPLER_2D_UINT:
-            case DescriptorType::SAMPLER_2D_DEPTH:
-            case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_2D_ARRAY_INT:
-            case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-            case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_INT:
-            case DescriptorType::SAMPLER_CUBE_UINT:
-            case DescriptorType::SAMPLER_CUBE_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_3D_FLOAT:
-            case DescriptorType::SAMPLER_3D_INT:
-            case DescriptorType::SAMPLER_3D_UINT: {
+            case DescriptorType::SAMPLER: {
                 fromStageFlags(binding.stageFlags, binding.binding, mask.sampler);
                 break;
             }

filament/backend/src/vulkan/platform/VulkanPlatform.cpp

@@ -631,21 +631,6 @@ fvkutils::VkFormatList findBlittableDepthStencilFormats(VkPhysicalDevice device)
     return ret;
 }
 
-/**
- *  Check if the GPU has a unified memory architecture.
- */
-bool hasUnifiedMemoryArchitecture(VkPhysicalDeviceMemoryProperties memoryProperties) noexcept {
-    // Try to identify if the platform is running on a Unified Memory Architecture by inspecting the
-    // memory heap flags, if they are all VK_MEMORY_HEAP_DEVICE_LOCAL_BIT it's UMA, otherwise not
-    // enough information to make a decision, so default to false.
-    for (uint32_t i = 0; i < memoryProperties.memoryHeapCount; ++i) {
-        if ((memoryProperties.memoryHeaps[i].flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT) == 0) {
-            return false;
-        }
-    }
-    return true;
-}
-
 }// anonymous namespace
 
 using SwapChainPtr = VulkanPlatform::SwapChainPtr;
@@ -879,8 +864,6 @@ Driver* VulkanPlatform::createDriver(void* sharedContext,
         }
     }
 
-    context.mIsUnifiedMemoryArchitecture = hasUnifiedMemoryArchitecture(context.mMemoryProperties);
-
 #ifdef NDEBUG
     // If we are in release build, we should not have turned on debug extensions
     FILAMENT_CHECK_POSTCONDITION(!context.mDebugUtilsSupported && !context.mDebugMarkersSupported)

filament/backend/src/webgpu/WebGPUDriver.cpp

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#include <utils/Hash.h>
+
 #include "webgpu/WebGPUDriver.h"
 
 #include "WebGPUPipelineCreation.h"
@@ -469,7 +469,7 @@ void WebGPUDriver::createSwapChainR(Handle<HwSwapChain> sch, void* nativeWindow,
             mDevice, flags);
     assert_invariant(mSwapChain);
     WebGPUDescriptorSet::initializeDummyResourcesIfNotAlready(mDevice,
-            mSwapChain->getColorFormat(), mSwapChain->getDepthFormat());
+            mSwapChain->getColorFormat());
     FWGPU_LOGW << "WebGPU support is still essentially a no-op at this point in development (only "
                   "background components have been instantiated/selected, such as surface/screen, "
                   "graphics device/GPU, etc.), thus nothing is being drawn to the screen."
@@ -591,7 +591,7 @@ void WebGPUDriver::createDescriptorSetLayoutR(Handle<HwDescriptorSetLayout> dslh
 void WebGPUDriver::createDescriptorSetR(Handle<HwDescriptorSet> dsh,
         Handle<HwDescriptorSetLayout> dslh) {
     auto layout = handleCast<WebGPUDescriptorSetLayout>(dslh);
-    constructHandle<WebGPUDescriptorSet>(dsh, layout->getLayout(), layout->getBindGroupEntries(), layout->label);
+    constructHandle<WebGPUDescriptorSet>(dsh, layout->getLayout(), layout->getBindGroupEntries());
 }
 
 Handle<HwStream> WebGPUDriver::createStreamNative(void* nativeStream) {
@@ -916,14 +916,6 @@ void WebGPUDriver::blit(
 }
 
 void WebGPUDriver::bindPipeline(PipelineState const& pipelineState) {
-    // TODO Investigate implications of this hash more closely. Vulkan has a whole class
-    // VulkanPipelineCache to handle this, may be missing nuance
-    static auto pipleineStateHasher = utils::hash::MurmurHashFn<filament::backend::PipelineState>();
-    auto hash = pipleineStateHasher(pipelineState);
-    if(mPipelineMap.find(hash) != mPipelineMap.end()){
-        mRenderPassEncoder.SetPipeline(mPipelineMap[hash]);
-        return;
-    }
     const auto* program = handleCast<WGPUProgram>(pipelineState.program);
     assert_invariant(program);
     assert_invariant(program->computeShaderModule == nullptr &&
@@ -960,7 +952,7 @@ void WebGPUDriver::bindPipeline(PipelineState const& pipelineState) {
             *vertexBufferInfo, layout, pipelineState.rasterState, pipelineState.stencilState,
             pipelineState.polygonOffset, pipelineState.primitiveType, mSwapChain->getColorFormat(),
             mSwapChain->getDepthFormat());
-    mPipelineMap[hash] = pipeline;
+    // TODO: uncomment once we have a valid pipeline to set
     mRenderPassEncoder.SetPipeline(pipeline);
 }
 
@@ -1069,98 +1061,97 @@ wgpu::Sampler WebGPUDriver::makeSampler(SamplerParams const& params) {
     desc.addressModeU = fWrapModeToWAddressMode(params.wrapS);
     desc.addressModeV = fWrapModeToWAddressMode(params.wrapR);
     desc.addressModeW = fWrapModeToWAddressMode(params.wrapT);
-    if (params.compareMode == SamplerCompareMode::COMPARE_TO_TEXTURE) {
-        switch (params.filterMag) {
-            case SamplerMagFilter::NEAREST: {
-                desc.magFilter = wgpu::FilterMode::Nearest;
-                break;
-            }
-            case SamplerMagFilter::LINEAR: {
-                desc.magFilter = wgpu::FilterMode::Linear;
-                break;
-            }
+    switch (params.filterMag) {
+        case SamplerMagFilter::NEAREST: {
+            desc.magFilter = wgpu::FilterMode::Nearest;
+            break;
         }
-        switch (params.filterMin) {
-            case SamplerMinFilter::NEAREST: {
-                desc.minFilter = wgpu::FilterMode::Nearest;
-                // Metal Driver uses an explicit not-mipmapped value webgpu lacks. Nearest should
-                // suffice
-                desc.mipmapFilter = wgpu::MipmapFilterMode::Undefined;
-                break;
-            }
-            case SamplerMinFilter::LINEAR: {
-                desc.minFilter = wgpu::FilterMode::Linear;
-                // Metal Driver uses an explicit not-mipmapped value webgpu lacks. Nearest should
-                // suffice
-
-                desc.mipmapFilter = wgpu::MipmapFilterMode::Undefined;
-                break;
-            }
-            case SamplerMinFilter::NEAREST_MIPMAP_NEAREST: {
-                desc.minFilter = wgpu::FilterMode::Nearest;
-                desc.mipmapFilter = wgpu::MipmapFilterMode::Nearest;
-                break;
-            }
-            case SamplerMinFilter::LINEAR_MIPMAP_NEAREST: {
-                desc.minFilter = wgpu::FilterMode::Linear;
-                desc.mipmapFilter = wgpu::MipmapFilterMode::Nearest;
-
-                break;
-            }
-            case SamplerMinFilter::NEAREST_MIPMAP_LINEAR: {
-                desc.minFilter = wgpu::FilterMode::Nearest;
-                desc.mipmapFilter = wgpu::MipmapFilterMode::Linear;
-
-                break;
-            }
-            case SamplerMinFilter::LINEAR_MIPMAP_LINEAR: {
-                desc.minFilter = wgpu::FilterMode::Linear;
-                desc.mipmapFilter = wgpu::MipmapFilterMode::Linear;
-                break;
-            }
+        case SamplerMagFilter::LINEAR: {
+            desc.magFilter = wgpu::FilterMode::Linear;
+            break;
         }
-        switch (params.compareFunc) {
-            case SamplerCompareFunc::LE: {
-                desc.compare = wgpu::CompareFunction::LessEqual;
-                break;
-            }
-            case SamplerCompareFunc::GE: {
-                desc.compare = wgpu::CompareFunction::GreaterEqual;
-                break;
-            }
-            case SamplerCompareFunc::L: {
-                desc.compare = wgpu::CompareFunction::Less;
-                break;
-            }
-            case SamplerCompareFunc::G: {
-                desc.compare = wgpu::CompareFunction::Greater;
-                break;
-            }
-            case SamplerCompareFunc::E: {
-                desc.compare = wgpu::CompareFunction::Equal;
-                break;
-            }
-            case SamplerCompareFunc::NE: {
-                desc.compare = wgpu::CompareFunction::NotEqual;
-                break;
-            }
-            case SamplerCompareFunc::A: {
-                desc.compare = wgpu::CompareFunction::Always;
-                break;
-            }
-            case SamplerCompareFunc::N: {
-                desc.compare = wgpu::CompareFunction::Never;
-                break;
-            }
+    }
+    switch (params.filterMin) {
+        case SamplerMinFilter::NEAREST: {
+            desc.minFilter = wgpu::FilterMode::Nearest;
+            // Metal Driver uses an explicit not-mipmapped value webgpu lacks. Nearest should
+            // suffice
+            desc.mipmapFilter = wgpu::MipmapFilterMode::Nearest;
+            break;
+        }
+        case SamplerMinFilter::LINEAR: {
+            desc.minFilter = wgpu::FilterMode::Linear;
+            // Metal Driver uses an explicit not-mipmapped value webgpu lacks. Nearest should
+            // suffice
+
+            desc.mipmapFilter = wgpu::MipmapFilterMode::Nearest;
+            break;
+        }
+        case SamplerMinFilter::NEAREST_MIPMAP_NEAREST: {
+            desc.minFilter = wgpu::FilterMode::Nearest;
+            desc.mipmapFilter = wgpu::MipmapFilterMode::Nearest;
+            break;
+        }
+        case SamplerMinFilter::LINEAR_MIPMAP_NEAREST: {
+            desc.minFilter = wgpu::FilterMode::Linear;
+            desc.mipmapFilter = wgpu::MipmapFilterMode::Nearest;
+
+            break;
+        }
+        case SamplerMinFilter::NEAREST_MIPMAP_LINEAR: {
+            desc.minFilter = wgpu::FilterMode::Nearest;
+            desc.mipmapFilter = wgpu::MipmapFilterMode::Linear;
+
+            break;
+        }
+        case SamplerMinFilter::LINEAR_MIPMAP_LINEAR: {
+            desc.minFilter = wgpu::FilterMode::Linear;
+            desc.mipmapFilter = wgpu::MipmapFilterMode::Linear;
+            break;
+        }
+    }
+    switch (params.compareFunc) {
+        case SamplerCompareFunc::LE: {
+            desc.compare = wgpu::CompareFunction::LessEqual;
+            break;
+        }
+        case SamplerCompareFunc::GE: {
+            desc.compare = wgpu::CompareFunction::GreaterEqual;
+            break;
+        }
+        case SamplerCompareFunc::L: {
+            desc.compare = wgpu::CompareFunction::Less;
+            break;
+        }
+        case SamplerCompareFunc::G: {
+            desc.compare = wgpu::CompareFunction::Greater;
+            break;
+        }
+        case SamplerCompareFunc::E: {
+            desc.compare = wgpu::CompareFunction::Equal;
+            break;
+        }
+        case SamplerCompareFunc::NE: {
+            desc.compare = wgpu::CompareFunction::NotEqual;
+            break;
+        }
+        case SamplerCompareFunc::A: {
+            desc.compare = wgpu::CompareFunction::Always;
+            break;
+        }
+        case SamplerCompareFunc::N: {
+            desc.compare = wgpu::CompareFunction::Never;
+            break;
         }
     }
 
     desc.maxAnisotropy = 1u << params.anisotropyLog2;
 
 
-    // Unused: WGPU lodMinClamp/lodMaxClamp
+    // Unused: Filament's compareMode, WGPU lodMinClamp/lodMaxClamp
 
-    return mDevice.CreateSampler(&desc);
+    //TODO Once we can properly map to descriptorsetlayout use the sampler.
+    return mDevice.CreateSampler(/*&desc*/);
 }
 wgpu::AddressMode WebGPUDriver::fWrapModeToWAddressMode(const SamplerWrapMode& fWrapMode) {
     switch (fWrapMode) {

filament/backend/src/webgpu/WebGPUDriver.h

@@ -93,8 +93,6 @@ private:
     wgpu::RenderPassEncoder mRenderPassEncoder = nullptr;
     wgpu::CommandBuffer mCommandBuffer = nullptr;
     WGPURenderTarget* mDefaultRenderTarget = nullptr;
-
-    tsl::robin_map<uint32_t, wgpu::RenderPipeline> mPipelineMap;
     /*
      * Driver interface
      */

filament/backend/src/webgpu/WebGPUHandles.cpp

@@ -247,7 +247,6 @@ WebGPUDescriptorSetLayout::WebGPUDescriptorSetLayout(DescriptorSetLayout const&
         const auto& temp = std::get_if<utils::CString>(&layout.label);
         baseLabel = temp->c_str();
     }
-    label = baseLabel;
 
     // TODO: layoutDescriptor has a "Label". Ideally we can get info on what this layout is for
     // debugging. For now, hack an incrementing value.
@@ -255,7 +254,8 @@ WebGPUDescriptorSetLayout::WebGPUDescriptorSetLayout(DescriptorSetLayout const&
 
     unsigned int samplerCount =
             std::count_if(layout.bindings.begin(), layout.bindings.end(), [](auto& fEntry) {
-                return DescriptorSetLayoutBinding::isSampler(fEntry.type);
+                return fEntry.type == DescriptorType::SAMPLER ||
+                       fEntry.type == DescriptorType::SAMPLER_EXTERNAL;
             });
 
 
@@ -269,31 +269,12 @@ WebGPUDescriptorSetLayout::WebGPUDescriptorSetLayout(DescriptorSetLayout const&
         wEntry.visibility = filamentStageToWGPUStage(fEntry.stageFlags);
         wEntry.binding = fEntry.binding * 2;
         entryInfo.binding = wEntry.binding;
-        wgpu::BindGroupLayoutEntry* sEntry;
 
         switch (fEntry.type) {
-            case DescriptorType::SAMPLER_2D_FLOAT:
-            case DescriptorType::SAMPLER_2D_INT:
-            case DescriptorType::SAMPLER_2D_UINT:
-            case DescriptorType::SAMPLER_2D_DEPTH:
-            case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_2D_ARRAY_INT:
-            case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-            case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_INT:
-            case DescriptorType::SAMPLER_CUBE_UINT:
-            case DescriptorType::SAMPLER_CUBE_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_3D_FLOAT:
-            case DescriptorType::SAMPLER_3D_INT:
-            case DescriptorType::SAMPLER_3D_UINT: {
+            case DescriptorType::SAMPLER_EXTERNAL:
+            case DescriptorType::SAMPLER: {
                 auto& samplerEntry = wEntries.emplace_back();
                 auto& samplerEntryInfo = mBindGroupEntries.emplace_back();
-                sEntry = &samplerEntry;
                 samplerEntry.binding = fEntry.binding * 2 + 1;
                 samplerEntryInfo.binding = samplerEntry.binding;
                 samplerEntryInfo.type = WebGPUDescriptorSetLayout::BindGroupEntryType::SAMPLER;
@@ -301,6 +282,15 @@ WebGPUDescriptorSetLayout::WebGPUDescriptorSetLayout(DescriptorSetLayout const&
                 // We are simply hoping that undefined and defaults suffices here.
                 samplerEntry.sampler.type = wgpu::SamplerBindingType::NonFiltering; // Example default
                 wEntry.texture.sampleType = wgpu::TextureSampleType::Float;      // Example default
+                // TODO: FIX! THIS IS HACK FOR HELLO-TRIANGLE!
+                if (baseLabel.find("Skybox") != std::string::npos ||
+                        (baseLabel == "Filament Default Material_perView" && wEntry.binding == 22)) {
+                    wEntry.texture.viewDimension = wgpu::TextureViewDimension::Cube;
+                } else {
+                    wEntry.texture.viewDimension =
+                            wgpu::TextureViewDimension::e2D;// Example default
+                }
+                entryInfo.type = WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW;
                 break;
             }
             case DescriptorType::UNIFORM_BUFFER: {
@@ -320,81 +310,6 @@ WebGPUDescriptorSetLayout::WebGPUDescriptorSetLayout(DescriptorSetLayout const&
                 PANIC_POSTCONDITION("Shader storage is not supported");
                 break;
             }
-            case DescriptorType::SAMPLER_EXTERNAL: {
-                PANIC_POSTCONDITION("External Sampler is not supported");
-                break;
-            }
-        }
-        switch (fEntry.type) {
-            case DescriptorType::SAMPLER_2D_FLOAT:
-            case DescriptorType::SAMPLER_2D_INT:
-            case DescriptorType::SAMPLER_2D_UINT:
-            case DescriptorType::SAMPLER_2D_DEPTH:
-                wEntry.texture.viewDimension = wgpu::TextureViewDimension::e2D;
-                entryInfo.type = WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_2D;
-                break;
-            case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_2D_ARRAY_INT:
-            case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-            case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-                wEntry.texture.viewDimension = wgpu::TextureViewDimension::e2DArray;
-                entryInfo.type = WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_2DA;
-                break;
-            case DescriptorType::SAMPLER_CUBE_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_INT:
-            case DescriptorType::SAMPLER_CUBE_UINT:
-            case DescriptorType::SAMPLER_CUBE_DEPTH:
-                wEntry.texture.viewDimension = wgpu::TextureViewDimension::Cube;
-                entryInfo.type = WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_CUBE;
-                break;
-            case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-                wEntry.texture.viewDimension = wgpu::TextureViewDimension::CubeArray;
-                entryInfo.type = WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_CUBEA;
-                break;
-            case DescriptorType::SAMPLER_3D_FLOAT:
-            case DescriptorType::SAMPLER_3D_INT:
-            case DescriptorType::SAMPLER_3D_UINT:
-                wEntry.texture.viewDimension = wgpu::TextureViewDimension::e3D;
-                entryInfo.type = WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_3D;
-                break;
-            default:
-                break;
-        }
-        switch (fEntry.type) {
-            case DescriptorType::SAMPLER_2D_FLOAT:
-            case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_FLOAT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-            case DescriptorType::SAMPLER_3D_FLOAT:
-                wEntry.texture.sampleType = wgpu::TextureSampleType::UnfilterableFloat;
-                break;
-            case DescriptorType::SAMPLER_2D_INT:
-            case DescriptorType::SAMPLER_2D_ARRAY_INT:
-            case DescriptorType::SAMPLER_CUBE_INT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-            case DescriptorType::SAMPLER_3D_INT:
-                wEntry.texture.sampleType = wgpu::TextureSampleType::Sint;
-                break;
-            case DescriptorType::SAMPLER_2D_UINT:
-            case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-            case DescriptorType::SAMPLER_CUBE_UINT:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-            case DescriptorType::SAMPLER_3D_UINT:
-                wEntry.texture.sampleType = wgpu::TextureSampleType::Uint;
-                break;
-            case DescriptorType::SAMPLER_2D_DEPTH:
-            case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_DEPTH:
-            case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-                //Dummies complain if you set this correctly without having an associated dummy
-                wEntry.texture.sampleType = wgpu::TextureSampleType::Depth;
-                sEntry->sampler.type = wgpu::SamplerBindingType::Comparison;
-                break;
-            default:
-                break;
         }
         // fEntry.count is unused currently
     }
@@ -410,12 +325,12 @@ WebGPUDescriptorSetLayout::WebGPUDescriptorSetLayout(DescriptorSetLayout const&
 WebGPUDescriptorSetLayout::~WebGPUDescriptorSetLayout() {}
 
 wgpu::Buffer WebGPUDescriptorSet::sDummyUniformBuffer = nullptr;
-std::unordered_map<wgpu::TextureDimension, wgpu::Texture> WebGPUDescriptorSet::sDummyTextureMap;
-std::unordered_map<wgpu::TextureViewDimension, wgpu::TextureView> WebGPUDescriptorSet::sDummyTextureViewMap;
+wgpu::Texture WebGPUDescriptorSet::sDummyTexture = nullptr;
+wgpu::TextureView WebGPUDescriptorSet::sDummyTextureView = nullptr;
 wgpu::Sampler WebGPUDescriptorSet::sDummySampler = nullptr;
 
 void WebGPUDescriptorSet::initializeDummyResourcesIfNotAlready(wgpu::Device const& device,
-        wgpu::TextureFormat aColorFormat, wgpu::TextureFormat aDepthFormat) {
+        wgpu::TextureFormat aColorFormat) {
     if (!sDummyUniformBuffer) {
         wgpu::BufferDescriptor bufferDescriptor{
             .label = "dummy_uniform_not_to_be_used",
@@ -426,75 +341,31 @@ void WebGPUDescriptorSet::initializeDummyResourcesIfNotAlready(wgpu::Device cons
         FILAMENT_CHECK_POSTCONDITION(sDummyUniformBuffer)
                 << "Failed to create dummy uniform buffer?";
     }
-    if (sDummyTextureMap.empty() || sDummyTextureViewMap.empty()) {
+    if (!sDummyTexture || !sDummyTextureView) {
         wgpu::TextureDescriptor textureDescriptor{
             .label = "dummy_texture_not_to_be_used",
             .usage = wgpu::TextureUsage::TextureBinding,
             .dimension = wgpu::TextureDimension::e2D,
             .size = wgpu::Extent3D{ .width = 4, .height = 4, .depthOrArrayLayers = 1 },
             .format = aColorFormat,
- //           .viewFormatCount = 1,
-   //         .viewFormats = &aDepthFormat
         };
-        sDummyTextureMap[wgpu::TextureDimension::e2D] = device.CreateTexture(&textureDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureMap[wgpu::TextureDimension::e2D])
-                << "Failed to create dummy texture 2D?";
-        textureDescriptor.dimension = wgpu::TextureDimension::e3D;
-        sDummyTextureMap[wgpu::TextureDimension::e3D] = device.CreateTexture(&textureDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureMap[wgpu::TextureDimension::e3D])
-                << "Failed to create dummy texture 3D?";
-
-        //Hacking as an experiment, treating 1D as cube arbitrarilly since my map key was bad idea
-        textureDescriptor.dimension = wgpu::TextureDimension::e2D;
-        textureDescriptor.size.depthOrArrayLayers = 6;
-        sDummyTextureMap[wgpu::TextureDimension::e1D] = device.CreateTexture(&textureDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureMap[wgpu::TextureDimension::e1D])
-                << "Failed to create dummy texture 3D?";
-
-
-        wgpu::TextureViewDescriptor textureViewDescriptor{
-            .label = "dummy_texture_view_not_to_be_used",
-        };
-
-        textureViewDescriptor.dimension = wgpu::TextureViewDimension::e2D;
-        sDummyTextureViewMap[wgpu::TextureViewDimension::e2D] =
-                sDummyTextureMap[wgpu::TextureDimension::e2D].CreateView(&textureViewDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureViewMap[wgpu::TextureViewDimension::e2D])
-                << "Failed to create dummy texture view?";
-
-        textureViewDescriptor.dimension = wgpu::TextureViewDimension::e2DArray;
-        sDummyTextureViewMap[wgpu::TextureViewDimension::e2DArray] =
-                sDummyTextureMap[wgpu::TextureDimension::e2D].CreateView(&textureViewDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureViewMap[wgpu::TextureViewDimension::e2D])
-                << "Failed to create dummy texture view?";
-
-        textureViewDescriptor.dimension = wgpu::TextureViewDimension::e2DArray;
-        sDummyTextureViewMap[wgpu::TextureViewDimension::e2DArray] =
-                sDummyTextureMap[wgpu::TextureDimension::e2D].CreateView(&textureViewDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureViewMap[wgpu::TextureViewDimension::e2DArray])
-                << "Failed to create dummy texture view?";
-
-        textureViewDescriptor.dimension = wgpu::TextureViewDimension::e3D;
-        sDummyTextureViewMap[wgpu::TextureViewDimension::e3D] =
-                sDummyTextureMap[wgpu::TextureDimension::e3D].CreateView(&textureViewDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureViewMap[wgpu::TextureViewDimension::e3D])
-                << "Failed to create dummy texture view?";
-
-        textureViewDescriptor.arrayLayerCount = 6;
-        textureViewDescriptor.dimension = wgpu::TextureViewDimension::Cube;
-        sDummyTextureViewMap[wgpu::TextureViewDimension::Cube] =
-                sDummyTextureMap[wgpu::TextureDimension::e1D].CreateView(&textureViewDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureViewMap[wgpu::TextureViewDimension::Cube])
-                << "Failed to create dummy texture view?";
-
-        textureViewDescriptor.dimension = wgpu::TextureViewDimension::CubeArray;
-        sDummyTextureViewMap[wgpu::TextureViewDimension::CubeArray] =
-                sDummyTextureMap[wgpu::TextureDimension::e1D].CreateView(&textureViewDescriptor);
-        FILAMENT_CHECK_POSTCONDITION(sDummyTextureViewMap[wgpu::TextureViewDimension::CubeArray])
-                << "Failed to create dummy texture view?";
+        if (!sDummyTexture) {
+            sDummyTexture = device.CreateTexture(&textureDescriptor);
+            FILAMENT_CHECK_POSTCONDITION(sDummyUniformBuffer) << "Failed to create dummy texture?";
+        }
+        if (!sDummyTextureView) {
+            wgpu::TextureViewDescriptor textureViewDescriptor{
+                .label = "dummy_texture_view_not_to_be_used"
+            };
+            sDummyTextureView = sDummyTexture.CreateView(&textureViewDescriptor);
+            FILAMENT_CHECK_POSTCONDITION(sDummyUniformBuffer)
+                    << "Failed to create dummy texture view?";
+        }
     }
     if (!sDummySampler) {
-        wgpu::SamplerDescriptor samplerDescriptor{ .label = "dummy_sampler_not_to_be_used" , .addressModeU = wgpu::AddressMode::MirrorRepeat};
+        wgpu::SamplerDescriptor samplerDescriptor{
+            .label = "dummy_sampler_not_to_be_used"
+        };
         sDummySampler = device.CreateSampler(&samplerDescriptor);
         FILAMENT_CHECK_POSTCONDITION(sDummyUniformBuffer) << "Failed to create dummy sampler?";
     }
@@ -506,12 +377,12 @@ std::vector<wgpu::BindGroupEntry> WebGPUDescriptorSet::createDummyEntriesSortedB
     assert_invariant(WebGPUDescriptorSet::sDummyUniformBuffer &&
                      "Dummy uniform buffer must have been created before "
                      "creating dummy bind group entries.");
-   /* assert_invariant(
+    assert_invariant(
             WebGPUDescriptorSet::sDummyTexture &&
             "Dummy texture must have been created before creating dummy bind group entries.");
     assert_invariant(
             WebGPUDescriptorSet::sDummyTextureView &&
-            "Dummy texture view must have been created before creating dummy bind group entries.");*/
+            "Dummy texture view must have been created before creating dummy bind group entries.");
     assert_invariant(
             WebGPUDescriptorSet::sDummySampler &&
             "Dummy sampler must have been created before creating dummy bind group entries.");
@@ -523,31 +394,14 @@ std::vector<wgpu::BindGroupEntry> WebGPUDescriptorSet::createDummyEntriesSortedB
         entry.binding = entryInfo.binding;
         switch (entryInfo.type) {
             case WebGPUDescriptorSetLayout::BindGroupEntryType::UNIFORM_BUFFER:
-                //entry.buffer = WebGPUDescriptorSet::sDummyUniformBuffer;
+                entry.buffer = WebGPUDescriptorSet::sDummyUniformBuffer;
+                break;
+            case WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW:
+                entry.textureView = WebGPUDescriptorSet::sDummyTextureView;
                 break;
             case WebGPUDescriptorSetLayout::BindGroupEntryType::SAMPLER:
-               // entry.sampler = WebGPUDescriptorSet::sDummySampler;
+                entry.sampler = WebGPUDescriptorSet::sDummySampler;
                 break;
-            case WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_2D:
-              //  entry.textureView = WebGPUDescriptorSet::sDummyTextureViewMap[wgpu::TextureViewDimension::e2D];
-                break;
-
-            case WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_2DA:
-             //   entry.textureView = WebGPUDescriptorSet::sDummyTextureViewMap[wgpu::TextureViewDimension::e2DArray];
-                break;
-
-            case WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_CUBE:
-            //    entry.textureView = WebGPUDescriptorSet::sDummyTextureViewMap[wgpu::TextureViewDimension::Cube];
-                break;
-
-            case WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_CUBEA:
-             //   entry.textureView = WebGPUDescriptorSet::sDummyTextureViewMap[wgpu::TextureViewDimension::CubeArray];
-                break;
-
-            case WebGPUDescriptorSetLayout::BindGroupEntryType::TEXTURE_VIEW_3D:
-               // entry.textureView = WebGPUDescriptorSet::sDummyTextureViewMap[wgpu::TextureViewDimension::e3D];
-                break;
-            default: break;
         }
     }
     std::sort(entries.begin(), entries.end(),
@@ -558,10 +412,9 @@ std::vector<wgpu::BindGroupEntry> WebGPUDescriptorSet::createDummyEntriesSortedB
 }
 
 WebGPUDescriptorSet::WebGPUDescriptorSet(wgpu::BindGroupLayout const& layout,
-        std::vector<WebGPUDescriptorSetLayout::BindGroupEntryInfo> const& bindGroupEntries, std::string label)
+        std::vector<WebGPUDescriptorSetLayout::BindGroupEntryInfo> const& bindGroupEntries)
     : mLayout(layout),
       mEntriesSortedByBinding(createDummyEntriesSortedByBinding(bindGroupEntries)) {
-    bglLabel = label;
     // Establish the size of entries based on the layout. This should be reliable and efficient.
     assert_invariant(INVALID_INDEX > mEntryIndexByBinding.size());
     for (size_t i = 0; i < mEntryIndexByBinding.size(); i++) {
@@ -596,20 +449,6 @@ wgpu::BindGroup WebGPUDescriptorSet::lockAndReturn(const wgpu::Device& device) {
         .entryCount = mEntriesSortedByBinding.size(),
         .entries = mEntriesSortedByBinding.data()
     };
-    for(auto e : mEntriesSortedByBinding){
-        if(e.sampler.Get() == sDummySampler.Get()){
-            printf("===R Dummy %s UBO %i\n", bglLabel.c_str(), e.binding/2);
-        }
-        for(auto dt : sDummyTextureViewMap){
-            if(e.textureView.Get() == dt.second.Get())
-            {
-                printf("===R Dummy %s Tex %i\n", bglLabel.c_str(), e.binding/2);
-            }
-        }
-        if(e.buffer.Get() == sDummyUniformBuffer.Get()){
-            printf("===R Dummy %s Sam %i\n", bglLabel.c_str(),(e.binding-1)/2);
-        }
-    }
     mBindGroup = device.CreateBindGroup(&desc);
     FILAMENT_CHECK_POSTCONDITION(mBindGroup) << "Failed to create bind group?";
     // once we have created the bind group itself we should no longer need any other state

filament/backend/src/webgpu/WebGPUHandles.h

@@ -103,15 +103,10 @@ struct WGPUBufferObject : HwBufferObject {
 
 class WebGPUDescriptorSetLayout final : public HwDescriptorSetLayout {
 public:
-    std::string label;
 
     enum class BindGroupEntryType : uint8_t {
         UNIFORM_BUFFER,
-        TEXTURE_VIEW_2D,
-        TEXTURE_VIEW_2DA,
-        TEXTURE_VIEW_CUBE,
-        TEXTURE_VIEW_CUBEA,
-        TEXTURE_VIEW_3D,
+        TEXTURE_VIEW,
         SAMPLER
     };
 
@@ -138,13 +133,11 @@ private:
 
 class WebGPUDescriptorSet final : public HwDescriptorSet {
 public:
-    std::string bglLabel;
     static void initializeDummyResourcesIfNotAlready(wgpu::Device const&,
-            wgpu::TextureFormat aColorFormat,
-            wgpu::TextureFormat aDepthFormat);
+            wgpu::TextureFormat aColorFormat);
 
     WebGPUDescriptorSet(wgpu::BindGroupLayout const& layout,
-            std::vector<WebGPUDescriptorSetLayout::BindGroupEntryInfo> const& bindGroupEntries, std::string label);
+            std::vector<WebGPUDescriptorSetLayout::BindGroupEntryInfo> const& bindGroupEntries);
     ~WebGPUDescriptorSet();
 
     wgpu::BindGroup lockAndReturn(wgpu::Device const&);
@@ -155,8 +148,8 @@ public:
 private:
 
     static wgpu::Buffer sDummyUniformBuffer;
-    static std::unordered_map<wgpu::TextureDimension, wgpu::Texture> sDummyTextureMap;
-    static std::unordered_map<wgpu::TextureViewDimension, wgpu::TextureView> sDummyTextureViewMap;
+    static wgpu::Texture sDummyTexture;
+    static wgpu::TextureView sDummyTextureView;
     static wgpu::Sampler sDummySampler;
 
     static std::vector<wgpu::BindGroupEntry> createDummyEntriesSortedByBinding(

filament/backend/test/BackendTest.cpp

@@ -45,7 +45,6 @@ namespace test {
 Backend BackendTest::sBackend = Backend::NOOP;
 OperatingSystem BackendTest::sOperatingSystem = OperatingSystem::OTHER;
 bool BackendTest::sIsMobilePlatform = false;
-std::vector<std::string> BackendTest::sFailedImages;
 
 void BackendTest::init(Backend backend, OperatingSystem operatingSystem, bool isMobilePlatform) {
     sBackend = backend;
@@ -64,12 +63,11 @@ BackendTest::~BackendTest() {
     flushAndWait();
     mImageExpectations->evaluate();
     // Note: Don't terminate the driver for OpenGL, as it wipes away the context and removes the buffer from the screen.
-    if (sBackend != Backend::OPENGL) {
-        driver->terminate();
-        delete driver;
+    if (sBackend == Backend::OPENGL) {
+        return;
     }
-
-    recordFailedImages();
+    driver->terminate();
+    delete driver;
 }
 
 void BackendTest::initializeDriver() {
@@ -169,24 +167,8 @@ bool BackendTest::matchesEnvironment(OperatingSystem operatingSystem) {
     return sOperatingSystem == operatingSystem;
 }
 
-void BackendTest::markImageAsFailure(std::string failedImageName) {
-    sFailedImages.emplace_back(std::move(failedImageName));
-}
-
-void BackendTest::recordFailedImages() {
-    if (!sFailedImages.empty()) {
-        std::string failedImages;
-        for (auto& failedTestImageName: sFailedImages) {
-            if (failedImages.empty()) {
-                failedImages = failedTestImageName;
-            } else {
-                failedImages.append(",");
-                failedImages.append(failedTestImageName);
-            }
-        }
-        RecordProperty("FailedImages", failedImages);
-    }
-    sFailedImages.clear();
+bool BackendTest::matchesEnvironment(OperatingSystem operatingSystem, Backend backend) {
+    return matchesEnvironment(operatingSystem) && matchesEnvironment(backend);
 }
 
 class Environment : public ::testing::Environment {

filament/backend/test/BackendTest.h

@@ -38,9 +38,6 @@ public:
     static OperatingSystem sOperatingSystem;
     static bool sIsMobilePlatform;
 
-    // Takes the name of the image that wasn't correct, without the .png suffix
-    static void markImageAsFailure(std::string failedImageName);
-
 protected:
 
     BackendTest();
@@ -76,13 +73,8 @@ protected:
 
     static bool matchesEnvironment(Backend backend);
     static bool matchesEnvironment(OperatingSystem operatingSystem);
+    static bool matchesEnvironment(OperatingSystem operatingSystem, Backend backend);
 private:
-    // Adds all the images that failed an ImageExpectation to the XML metadata for the current tests
-    // case. Add --gtest_output=xml as a command line argument to generate a test_detail.xml file in
-    // the directory where the tests are run.
-    static void recordFailedImages();
-
-    static std::vector<std::string> sFailedImages;
 
     filament::backend::Driver* driver = nullptr;
     filament::backend::CommandBufferQueue commandBufferQueue;

filament/backend/test/ImageExpectations.cpp

@@ -21,7 +21,6 @@
 #include "utils/Hash.h"
 #include <fstream>
 
-#include "BackendTest.h"
 #include "backend/PixelBufferDescriptor.h"
 #include "private/backend/DriverApi.h"
 
@@ -33,8 +32,6 @@
 
 #endif
 
-namespace test {
-
 ScreenshotParams::ScreenshotParams(int width, int height, std::string fileName,
         uint32_t expectedHash, bool isSrgb)
     : mWidth(width),
@@ -83,10 +80,6 @@ std::string ScreenshotParams::expectedFilePath() const {
     return absl::StrFormat("%s/%s", expectedDirectoryPath(), expectedFileName());
 }
 
-const std::string ScreenshotParams::filePrefix() const {
-    return mFileName;
-}
-
 ImageExpectation::ImageExpectation(const char* fileName, int lineNumber,
         filament::backend::DriverApi& api, ScreenshotParams params,
         filament::backend::RenderTargetHandle renderTarget)
@@ -120,11 +113,7 @@ void ImageExpectation::compareImage() const {
 #ifndef FILAMENT_IOS
         LoadedPng loadedImage(mParams.expectedFilePath());
         uint32_t loadedImageHash = loadedImage.hash();
-        auto compareToImageMatcher = testing::Eq(loadedImageHash);
-        if (!testing::Matches(compareToImageMatcher)(actualHash)) {
-            BackendTest::markImageAsFailure(mParams.filePrefix());
-        }
-        EXPECT_THAT(actualHash, compareToImageMatcher) << mParams.expectedFileName();
+        EXPECT_THAT(actualHash, testing::Eq(loadedImageHash)) << mParams.expectedFileName();
 #endif
         // For builds that can't load PNGs (currently iOS only) use the expected hash.
         EXPECT_THAT(actualHash, testing::Eq(mParams.expectedHash())) << mParams.expectedFileName();
@@ -248,5 +237,3 @@ uint32_t LoadedPng::hash() const {
 const std::vector<unsigned char>& LoadedPng::bytes() const {
     return mBytes;
 }
-
-} // namespace test

filament/backend/test/ImageExpectations.h

@@ -35,8 +35,6 @@ do {                                                                \
         screenshotParams);                                          \
 } while (0)
 
-namespace test {
-
 /**
  * Stores user-provided configuration values for an image expectation
  */
@@ -56,7 +54,6 @@ public:
     static std::string expectedDirectoryPath();
     std::string expectedFileName() const;
     std::string expectedFilePath() const;
-    const std::string filePrefix() const;
 
 private:
     int mWidth;
@@ -156,6 +153,4 @@ private:
     std::vector<std::unique_ptr<ImageExpectation>> mExpectations;
 };
 
-} // namespace test
-
 #endif //TNT_IMAGE_EXPECTATIONS_H

filament/backend/test/Shader.cpp

@@ -57,7 +57,7 @@ Shader::Shader(DriverApi& api, Cleanup& cleanup, ShaderConfig config) : mCleanup
 
     if (!kLayouts.empty()) {
         mDescriptorSetLayout =
-                cleanup.add(api.createDescriptorSetLayout(DescriptorSetLayout{ .bindings = kLayouts }));
+                cleanup.add(api.createDescriptorSetLayout(DescriptorSetLayout{ kLayouts }));
     }
 }
 

filament/backend/test/SharedShaders.cpp

@@ -184,7 +184,7 @@ std::vector<UniformConfig> GetUniformConfig(ShaderUniformType type) {
                     "backend_test", "test_tex", 0,
                     SamplerType::SAMPLER_2D, SamplerFormat::FLOAT, Precision::HIGH, false };
             return {{
-                            "test_tex", DescriptorType::SAMPLER_2D_FLOAT, samplerInfo
+                            "test_tex", DescriptorType::SAMPLER, samplerInfo
                     }};
         }
         default:

filament/backend/test/move_actual_images_to_expected.py

@@ -1,143 +1,62 @@
-import os, shutil, argparse, typing, xml.etree.ElementTree, subprocess, platform
+import os, shutil, argparse, typing
+
+def match_sufffix(file_name: str, suffix: str, accepted_prefixes: typing.List[str]) -> str:
+  """
+  Check if the file name is one of the searched for ones with the given suffix and if so return it.
+  :param accepted_prefixes: If None accepts any prefix
+  :return: file_name with the suffix removed or "" if it doesn't match. This does mean a string that
+  is just the suffix is considered to not match as it will return the empty string.
+  """
+  if file_name.endswith(suffix):
+    prefix = file_name.removesuffix(suffix)
+    if accepted_prefixes is None or prefix in accepted_prefixes:
+      return prefix
+  return ""
 
 
-class TestResults(object):
-    ACTUAL_SUFFIX = '_actual.png'
-    EXPECTED_SUFFIX = '.png'
-
-    def __init__(self, results_directory: str, source_expected_directory: str):
-        self.results_directory = results_directory
-        self.actual_directory = os.path.join(self.results_directory, 'images', 'actual_images')
-        self.expected_directory = os.path.join(self.results_directory, 'images', 'expected_images')
-        self.source_expected_directory = source_expected_directory
-
-    def get_latest_failed_images(self) -> typing.List[str]:
-        failed_images = []
-        xml_tree = xml.etree.ElementTree.parse(
-            os.path.join(self.results_directory, 'test_detail.xml'))
-        testsuites = xml_tree.getroot()
-        for testsuite in testsuites.findall('testsuite'):
-            for testcase in testsuite.findall('testcase'):
-                for properties in testcase.findall('properties'):
-                    for property in properties.findall('property'):
-                        if property.get('name') == 'FailedImages':
-                            failed_images.extend(property.get('value').split(','))
-
-        return failed_images
-
-    def handle_failed_image(self, failed_image):
-        self.show_images(failed_image)
-        print(f'Update {failed_image}\'s expected image? y/n')
-        while True:
-            user_input = input()
-            if user_input == 'y':
-                self.move_actual_to_source([failed_image])
-                break
-            elif user_input == 'n':
-                break
-
-    def handle_all_failed_images(self):
-        for failed_image in self.get_latest_failed_images():
-            self.handle_failed_image(failed_image)
-
-    def show_images(self, failed_image):
-        # TODO: Test more on non-mac systems
-        open_command: str
-        os_name = platform.system().lower()
-        if 'windows' in os_name:
-            open_command = 'start'
-        elif 'osx' in os_name or 'darwin' in os_name:
-            open_command = 'open'
-        else:
-            open_command = 'xdg-open'
-
-        subprocess.run(
-            [open_command,
-             os.path.join(self.actual_directory, failed_image + TestResults.ACTUAL_SUFFIX)])
-        subprocess.run(
-            [open_command,
-             os.path.join(self.expected_directory, failed_image + TestResults.EXPECTED_SUFFIX)])
-
-    def move_actual_to_source(self, file_prefixes: typing.List[str]):
-        replace_file_names(path=self.actual_directory, removed=TestResults.ACTUAL_SUFFIX,
-                           replacement=TestResults.EXPECTED_SUFFIX,
-                           output_path=self.source_expected_directory, prefixes=file_prefixes)
-
-    def batch_move(self, prefixes: typing.Optional[typing.List[str]] = None):
-        replace_file_names(path=self.actual_directory, removed=TestResults.ACTUAL_SUFFIX,
-                           replacement=TestResults.EXPECTED_SUFFIX,
-                           output_path=self.source_expected_directory, prefixes=prefixes)
-
-
-def match_suffix(file_name: str, suffix: str, accepted_prefixes: typing.List[str]) -> str:
-    """
-    Check if the file name is one of the searched for ones with the given suffix and if so return
-    it.
-    :param accepted_prefixes: If None accepts any prefix
-    :return: file_name with the suffix removed or "" if it doesn't match. This does mean a string
-    that is just the suffix is considered to not match as it will return the empty string.
-    """
-    if file_name.endswith(suffix):
-        prefix = file_name.removesuffix(suffix)
-        if accepted_prefixes is None or prefix in accepted_prefixes:
-            return prefix
-    return ''
-
-
-def replace_file_names(path: str, removed: str, replacement: str = '', output_path: str = '',
-                       prefixes: typing.Optional[typing.List[str]] = None):
-    if not output_path:
-        output_path = path
-    for file_name in os.listdir(path=path):
-        prefix = match_suffix(file_name, removed, prefixes)
-        if prefix:
-            # Remove the prefix from the list so that prefixes is the list of intended but not yet
-            # found files.
-            if prefixes is not None:
-                prefixes.remove(prefix)
-            new_file_name = prefix + replacement
-            new_file_path = os.path.join(output_path, new_file_name)
-            old_file_path = os.path.join(path, file_name)
-            print(f'{old_file_path} to {new_file_path}')
-            shutil.copyfile(old_file_path, new_file_path)
-    if prefixes is not None:
-        for unfound_prefix in prefixes:
-            print(f'Failed to find {unfound_prefix}_actual.png')
-
+def replace_file_names(path: str, removed: str, replacement: str = "", output_path: str = "",
+                       prefixes: typing.List[str] = None):
+  if not output_path:
+    output_path = path
+  for file_name in os.listdir(path=path):
+    prefix = match_sufffix(file_name, removed, prefixes)
+    if prefix:
+      # Remove the prefix from the list so that prefixes is the list of intended but not yet found
+      # files.
+      if prefixes is not None:
+        prefixes.remove(prefix)
+      new_file_name = prefix + replacement
+      new_file_path = os.path.join(output_path, new_file_name)
+      old_file_path = os.path.join(path, file_name)
+      print(f'{old_file_path} to {new_file_path}')
+      shutil.move(old_file_path, new_file_path)
+  if prefixes is not None:
+    for unfound_prefix in prefixes:
+      print(f'Failed to find {unfound_prefix}_actual.png')
 
 if __name__ == "__main__":
-    parser = argparse.ArgumentParser(prog='Backend Test File Renamer',
-                                     description='Moves actual generated test images to the '
-                                                 'expected images directory, to update the test '
-                                                 'requirements. test_cases accepts multiple '
-                                                 'arguments that should be the name of the '
-                                                 'expected image file without the .png suffix. '
-                                                 'Also --all can be passed to copy all images.\n'
-                                                 'Remember to sync CMake after running this to '
-                                                 'move the new expected images to the binary '
-                                                 'directory.')
-    parser.add_argument('-r', '--results_path')
-    parser.add_argument('-s', '--source_expected_path', default="./expected_images")
-    # The mutually exclusive options for how to process the actual images
-    parser.add_argument('-b', '--batch', action='extend', nargs='*')
-    parser.add_argument('-a', '--all', action='store_true')
-    parser.add_argument('-t', '--tests', action='store_true')
-    parser.add_argument('-c', '--compare', action='extend', nargs='*')
+  parser = argparse.ArgumentParser(prog='Backend Test File Renamer',
+                                   description='Moves actual generated test images to the expected '
+                                               'images directory, to update the test requirements. '
+                                               'test_cases accepts multiple arguments that should '
+                                               'be the name of the expected image file without the '
+                                               '.png suffix. Also --all can be passed to copy all '
+                                               'images.\n'
+                                               'Remember to sync CMake after running this to move '
+                                               'the new expected images to the binary directory.')
+  parser.add_argument('-i', '--input_path')
+  parser.add_argument('-o', '--output_path', default="./expected_images")
+  parser.add_argument('-t', '--test_cases', action='extend', nargs='*')
+  parser.add_argument('-a', '--all', action='store_true')
 
-    args = parser.parse_args()
-    if not args.results_path:
-        raise AssertionError("No result path provided")
-    results_path = args.results_path
+  args = parser.parse_args()
+  input_path = "."
+  if args.input_path:
+    input_path = args.input_path
 
-    results = TestResults(results_directory=results_path,
-                          source_expected_directory=args.source_expected_path)
+  prefixes = args.test_cases
+  if args.all:
+    prefixes = None
 
-    if args.all:
-        results.batch_move()
-    elif args.tests:
-        results.handle_all_failed_images()
-    elif args.compare:
-        for file_prefix in args.compare:
-            results.show_images(file_prefix)
-    else:
-        results.batch_move(args.batch)
+  replace_file_names(path=input_path, output_path=args.output_path, removed="_actual.png",
+                     replacement=".png", prefixes=prefixes)

filament/backend/test/test_FeedbackLoops.cpp

@@ -118,7 +118,7 @@ TEST_F(BackendTest, FeedbackLoops) {
         Shader shader = Shader(api, cleanup, ShaderConfig {
             .vertexShader = fullscreenVs,
             .fragmentShader = fullscreenFs,
-            .uniforms = {{"test_tex", DescriptorType::SAMPLER_2D_FLOAT, samplerInfo}, {"Params"}}
+            .uniforms = {{"test_tex", DescriptorType::SAMPLER, samplerInfo}, {"Params"}}
         });
 
         TrianglePrimitive const triangle(getDriverApi());

filament/backend/test/test_LoadImage.cpp

@@ -308,7 +308,7 @@ TEST_F(LoadImageTest, UpdateImage2D) {
         Shader shader(api, cleanup, ShaderConfig{
            .vertexShader = mVertexShader,
            .fragmentShader= fragment,
-           .uniforms = {{"test_tex", DescriptorType::SAMPLER_2D_FLOAT, samplerInfo}}
+           .uniforms = {{"test_tex", DescriptorType::SAMPLER, samplerInfo}}
         });
 
         // Create a Texture.
@@ -372,7 +372,7 @@ TEST_F(LoadImageTest, UpdateImageSRGB) {
             getSamplerTypeName(textureFormat), fragmentTemplate);
     Shader shader(api, cleanup, ShaderConfig{
         .vertexShader = mVertexShader, .fragmentShader = fragment, .uniforms = {{
-            "test_tex", DescriptorType::SAMPLER_2D_FLOAT, samplerInfo
+            "test_tex", DescriptorType::SAMPLER, samplerInfo
     }}});
 
     // Create a texture.
@@ -447,7 +447,7 @@ TEST_F(LoadImageTest, UpdateImageMipLevel) {
     Shader shader(api, cleanup, ShaderConfig {
         .vertexShader = mVertexShader,
         .fragmentShader = fragment,
-        .uniforms = {{"test_tex", DescriptorType::SAMPLER_2D_FLOAT, samplerInfo}}
+        .uniforms = {{"test_tex", DescriptorType::SAMPLER, samplerInfo}}
     });
 
     // Create a texture with 3 mip levels.
@@ -508,7 +508,7 @@ TEST_F(LoadImageTest, UpdateImage3D) {
     Shader shader(api, cleanup, ShaderConfig {
         .vertexShader = mVertexShader,
         .fragmentShader = fragment,
-        .uniforms = {{"test_tex", DescriptorType::SAMPLER_2D_ARRAY_FLOAT, samplerInfo}}
+        .uniforms = {{"test_tex", DescriptorType::SAMPLER, samplerInfo}}
     });
 
     // Create a texture.

filament/backend/test/test_MipLevels.cpp

@@ -82,7 +82,7 @@ TEST_F(BackendTest, TextureViewLod) {
            .vertexShader = vertexShader,
            .fragmentShader = fragmentTexturedLod,
            .uniforms = {{
-               "backend_test_sib_tex", DescriptorType::SAMPLER_2D_FLOAT, samplerInfo
+               "backend_test_sib_tex", DescriptorType::SAMPLER, samplerInfo
            }}
         });
 

filament/include/filament/ColorGrading.h

@@ -21,17 +21,13 @@
 
 #include <filament/FilamentAPI.h>
 #include <filament/ToneMapper.h>
-#include <filament/ColorSpace.h>
 
 #include <utils/compiler.h>
 
 #include <math/mathfwd.h>
-#include <math/vec3.h>
-#include <math/vec4.h>
 
 #include <stdint.h>
 #include <stddef.h>
-#include <memory>
 
 namespace filament {
 
@@ -205,14 +201,15 @@ public:
          *
          * The default tone mapping operator is ACESLegacyToneMapper.
          *
-         * The ownership of the specified tone mapper is shared with the builder and built
-         * ColorGrading object.
+         * The specified tone mapper must have a lifecycle that exceeds the lifetime of
+         * this builder. Since the build(Engine&) method is synchronous, it is safe to
+         * delete the tone mapper object after that finishes executing.
          *
          * @param toneMapper The tone mapping operator to apply to the HDR color buffer
          *
          * @return This Builder, for chaining calls
          */
-        Builder& toneMapper(std::shared_ptr<ToneMapper> toneMapper) noexcept;
+        Builder& toneMapper(ToneMapper const* UTILS_NULLABLE toneMapper) noexcept;
 
         /**
          * Selects the tone mapping operator to apply to the HDR color buffer as the last
@@ -490,118 +487,7 @@ public:
         friend class FColorGrading;
     };
 
-    /** Returns the quality level used to create this ColorGrading object. */
-    QualityLevel getQuality() const noexcept;
-
-    /** Returns the LUT format used to create this ColorGrading object. */
-    LutFormat getLutFormat() const noexcept;
-
-    /** Returns the LUT dimensions used to create this ColorGrading object. */
-    uint8_t getLutDimensions() const noexcept;
-
-    /** Returns the tone mapper used to create this ColorGrading object. */
-    const ToneMapper& getToneMapper() const noexcept;
-
-    /** Returns whether luminance scaling was enabled during creation. */
-    bool isLuminanceScalingEnabled() const noexcept;
-
-    /** Returns whether gamut mapping was enabled during creation. */
-    bool isGamutMappingEnabled() const noexcept;
-
-    /** Returns the exposure value used to create this ColorGrading object. */
-    float getExposure() const noexcept;
-
-    /** Returns the night adaptation value used to create this ColorGrading object. */
-    float getNightAdaptation() const noexcept;
-
-    /** Returns the white balance temperature used to create this ColorGrading object. */
-    float getWhiteBalanceTemperature() const noexcept;
-
-    /** Returns the white balance tint used to create this ColorGrading object. */
-    float getWhiteBalanceTint() const noexcept;
-
-    /** Returns the channel mixer output for the red channel. */
-    math::float3 getChannelMixerOutRed() const noexcept;
-
-    /** Returns the channel mixer output for the green channel. */
-    math::float3 getChannelMixerOutGreen() const noexcept;
-
-    /** Returns the channel mixer output for the blue channel. */
-    math::float3 getChannelMixerOutBlue() const noexcept;
-
-    /** Returns the shadows adjustment used to create this ColorGrading object. */
-    math::float3 getShadows() const noexcept;
-
-    /** Returns the midtones adjustment used to create this ColorGrading object. */
-    math::float3 getMidtones() const noexcept;
-
-    /** Returns the highlights adjustment used to create this ColorGrading object. */
-    math::float3 getHighlights() const noexcept;
-
-    /** Returns the shadow/midtones/highlights ranges used to create this ColorGrading object. */
-    math::float4 getShadowMidtonesHighlightsRanges() const noexcept;
-
-    /** Returns the slope adjustment used to create this ColorGrading object. */
-    math::float3 getSlope() const noexcept;
-
-    /** Returns the offset adjustment used to create this ColorGrading object. */
-    math::float3 getOffset() const noexcept;
-
-    /** Returns the power adjustment used to create this ColorGrading object. */
-    math::float3 getPower() const noexcept;
-
-    /** Returns the contrast value used to create this ColorGrading object. */
-    float getContrast() const noexcept;
-
-    /** Returns the vibrance value used to create this ColorGrading object. */
-    float getVibrance() const noexcept;
-
-    /** Returns the saturation value used to create this ColorGrading object. */
-    float getSaturation() const noexcept;
-
-    /** Returns the shadow gamma curve adjustment used to create this ColorGrading object. */
-    math::float3 getCurvesShadowGamma() const noexcept;
-
-    /** Returns the mid-point curve adjustment used to create this ColorGrading object. */
-    math::float3 getCurvesMidPoint() const noexcept;
-
-    /** Returns the highlight scale curve adjustment used to create this ColorGrading object. */
-    math::float3 getCurvesHighlightScale() const noexcept;
-
-    /** Returns the output color space used to create this ColorGrading object. */
-    const color::ColorSpace& getOutputColorSpace() const noexcept;
-
-protected :
-    struct Settings {
-        LutFormat lutFormat = LutFormat::INTEGER;
-        uint8_t lutDimensions = 32;
-        std::shared_ptr<ToneMapper> toneMapper = std::make_shared<ACESLegacyToneMapper>();
-        bool luminanceScaling = false;
-        bool gummapMapping = false;
-        float exposure = 0.0f;
-        float nightAdaptation = 0.0f;
-        float whiteBalanceTemperature = 0.0f;
-        float whiteBalanceTint = 0.0f;
-        math::float3 channelMixerOutRed{1.0f, 0.0f, 0.0f};
-        math::float3 channelMixerOutGreen{0.0f, 1.0f, 0.0f};
-        math::float3 channelMixerOutBlue{0.0f, 0.0f, 1.0f};
-        math::float3 shadows{1.0f, 1.0f, 1.0f};
-        math::float3 midtones{1.0f, 1.0f, 1.0f};
-        math::float3 highlights{1.0f, 1.0f, 1.0f};
-        math::float4 ShadowMidtonesHighlightsRanges{0.0f, 0.333f, 0.55f, 1.0f};
-        math::float3 slope{1.0f};
-        math::float3 offset{0.0f};
-        math::float3 power{1.0f};
-        float contrast = 1.0f;
-        float vibrance = 1.0f;
-        float saturation = 1.0f;
-        math::float3 curvesShadowGamma{1.0f, 1.0f, 1.0f};
-        math::float3 curvesMidPoint{1.0f, 1.0f, 1.0f};
-        math::float3 curvesHighlightScale{1.0f, 1.0f, 1.0f};
-        color::ColorSpace colorSpace = color::Rec709 - color::sRGB - color::D65;
-    };
-    Settings mSettings;
-
+protected:
     // prevent heap allocation
     ~ColorGrading() = default;
 };

filament/include/filament/ToneMapper.h

@@ -54,8 +54,6 @@ namespace filament {
 struct UTILS_PUBLIC ToneMapper {
     ToneMapper() noexcept;
     virtual ~ToneMapper() noexcept;
-    ToneMapper(ToneMapper const&) noexcept;
-    ToneMapper& operator=(ToneMapper const&) noexcept = default;
 
     /**
      * Maps an open domain (or "scene referred" values) color value to display
@@ -71,13 +69,6 @@ struct UTILS_PUBLIC ToneMapper {
      */
     virtual math::float3 operator()(math::float3 c) const noexcept = 0;
 
-    /**
-     * Creates a copy of this tone mapper instance.
-     *
-     * @return A pointer to a new ToneMapper instance that is a copy of this instance.
-     */
-    virtual ToneMapper* clone() const noexcept = 0;
-
     /**
      * If true, then this function holds that f(x) = vec3(f(x.r), f(x.g), f(x.b))
      *
@@ -101,10 +92,8 @@ struct UTILS_PUBLIC ToneMapper {
 struct UTILS_PUBLIC LinearToneMapper final : public ToneMapper {
     LinearToneMapper() noexcept;
     ~LinearToneMapper() noexcept final;
-    LinearToneMapper(LinearToneMapper const&) noexcept;
 
     math::float3 operator()(math::float3 c) const noexcept override;
-    LinearToneMapper* clone() const noexcept override;
     bool isOneDimensional() const noexcept override { return true; }
     bool isLDR() const noexcept override { return true; }
 };
@@ -117,10 +106,8 @@ struct UTILS_PUBLIC LinearToneMapper final : public ToneMapper {
 struct UTILS_PUBLIC ACESToneMapper final : public ToneMapper {
     ACESToneMapper() noexcept;
     ~ACESToneMapper() noexcept final;
-    ACESToneMapper(ACESToneMapper const&) noexcept;
 
     math::float3 operator()(math::float3 c) const noexcept override;
-    ACESToneMapper* clone() const noexcept override;
     bool isOneDimensional() const noexcept override { return false; }
     bool isLDR() const noexcept override { return false; }
 };
@@ -134,10 +121,8 @@ struct UTILS_PUBLIC ACESToneMapper final : public ToneMapper {
 struct UTILS_PUBLIC ACESLegacyToneMapper final : public ToneMapper {
     ACESLegacyToneMapper() noexcept;
     ~ACESLegacyToneMapper() noexcept final;
-    ACESLegacyToneMapper(ACESLegacyToneMapper const&) noexcept;
 
     math::float3 operator()(math::float3 c) const noexcept override;
-    ACESLegacyToneMapper* clone() const noexcept override;
     bool isOneDimensional() const noexcept override { return false; }
     bool isLDR() const noexcept override { return false; }
 };
@@ -151,10 +136,8 @@ struct UTILS_PUBLIC ACESLegacyToneMapper final : public ToneMapper {
 struct UTILS_PUBLIC FilmicToneMapper final : public ToneMapper {
     FilmicToneMapper() noexcept;
     ~FilmicToneMapper() noexcept final;
-    FilmicToneMapper(FilmicToneMapper const&) noexcept;
 
     math::float3 operator()(math::float3 x) const noexcept override;
-    FilmicToneMapper* clone() const noexcept override;
     bool isOneDimensional() const noexcept override { return true; }
     bool isLDR() const noexcept override { return false; }
 };
@@ -167,10 +150,8 @@ struct UTILS_PUBLIC FilmicToneMapper final : public ToneMapper {
 struct UTILS_PUBLIC PBRNeutralToneMapper final : public ToneMapper {
     PBRNeutralToneMapper() noexcept;
     ~PBRNeutralToneMapper() noexcept final;
-    PBRNeutralToneMapper(PBRNeutralToneMapper const&) noexcept;
 
     math::float3 operator()(math::float3 x) const noexcept override;
-    virtual PBRNeutralToneMapper* clone() const noexcept override;
     bool isOneDimensional() const noexcept override { return false; }
     bool isLDR() const noexcept override { return false; }
 };
@@ -192,10 +173,8 @@ struct UTILS_PUBLIC AgxToneMapper final : public ToneMapper {
      */
     explicit AgxToneMapper(AgxLook look = AgxLook::NONE) noexcept;
     ~AgxToneMapper() noexcept final;
-    AgxToneMapper(AgxToneMapper const&) noexcept;
 
     math::float3 operator()(math::float3 x) const noexcept override;
-    virtual AgxToneMapper* clone() const noexcept override;
     bool isOneDimensional() const noexcept override { return false; }
     bool isLDR() const noexcept override { return false; }
 
@@ -236,13 +215,12 @@ struct UTILS_PUBLIC GenericToneMapper final : public ToneMapper {
     ) noexcept;
     ~GenericToneMapper() noexcept final;
 
-    GenericToneMapper(GenericToneMapper const& rhs) noexcept;
-    GenericToneMapper& operator=(GenericToneMapper const& rhs) noexcept;
+    GenericToneMapper(GenericToneMapper const&) = delete;
+    GenericToneMapper& operator=(GenericToneMapper const&) = delete;
     GenericToneMapper(GenericToneMapper&& rhs)  noexcept;
     GenericToneMapper& operator=(GenericToneMapper&& rhs) noexcept;
 
     math::float3 operator()(math::float3 x) const noexcept override;
-    GenericToneMapper* clone() const noexcept override;
     bool isOneDimensional() const noexcept override { return true; }
     bool isLDR() const noexcept override { return false; }
 
@@ -305,10 +283,8 @@ private:
 struct UTILS_PUBLIC DisplayRangeToneMapper final : public ToneMapper {
     DisplayRangeToneMapper() noexcept;
     ~DisplayRangeToneMapper() noexcept override;
-    DisplayRangeToneMapper(DisplayRangeToneMapper const&) noexcept;
 
     math::float3 operator()(math::float3 c) const noexcept override;
-    DisplayRangeToneMapper* clone() const noexcept override;
     bool isOneDimensional() const noexcept override { return false; }
     bool isLDR() const noexcept override { return false; }
 };

filament/src/MaterialParser.cpp

@@ -648,32 +648,44 @@ bool ChunkAttributeInfo::unflatten(Unflattener& unflattener,
 bool ChunkDescriptorBindingsInfo::unflatten(Unflattener& unflattener,
         MaterialParser::DescriptorBindingsContainer* container) {
 
-    static_assert(sizeof(DescriptorSetBindingPoints) == sizeof(uint8_t));
-
-    uint8_t descriptorCount;
-    if (!unflattener.read(&descriptorCount)) {
+    uint8_t setCount;
+    if (!unflattener.read(&setCount)) {
         return false;
     }
 
-    auto& descriptors = (*container)[+DescriptorSetBindingPoints::PER_MATERIAL];
-    descriptors.reserve(descriptorCount);
-    for (size_t i = 0; i < descriptorCount; i++) {
-        CString name;
-        if (!unflattener.read(&name)) {
+    for (size_t j = 0; j < setCount; j++) {
+        static_assert(sizeof(DescriptorSetBindingPoints) == sizeof(uint8_t));
+
+        DescriptorSetBindingPoints set;
+        if (!unflattener.read(reinterpret_cast<uint8_t*>(&set))) {
             return false;
         }
-        uint8_t type;
-        if (!unflattener.read(&type)) {
+
+        uint8_t descriptorCount;
+        if (!unflattener.read(&descriptorCount)) {
             return false;
         }
-        uint8_t binding;
-        if (!unflattener.read(&binding)) {
-            return false;
+
+        auto& descriptors = (*container)[+set];
+        descriptors.reserve(descriptorCount);
+        for (size_t i = 0; i < descriptorCount; i++) {
+            CString name;
+            if (!unflattener.read(&name)) {
+                return false;
+            }
+            uint8_t type;
+            if (!unflattener.read(&type)) {
+                return false;
+            }
+            uint8_t binding;
+            if (!unflattener.read(&binding)) {
+                return false;
+            }
+            descriptors.push_back({
+                    std::move(name),
+                    DescriptorType(type),
+                    descriptor_binding_t(binding)});
         }
-        descriptors.push_back({
-                std::move(name),
-                DescriptorType(type),
-                descriptor_binding_t(binding)});
     }
 
     return true;
@@ -681,40 +693,42 @@ bool ChunkDescriptorBindingsInfo::unflatten(Unflattener& unflattener,
 
 bool ChunkDescriptorSetLayoutInfo::unflatten(Unflattener& unflattener,
         MaterialParser::DescriptorSetLayoutContainer* container) {
-    uint8_t descriptorCount;
-    if (!unflattener.read(&descriptorCount)) {
-        return false;
-    }
-    auto& descriptors = container->bindings;
-    descriptors.reserve(descriptorCount);
-    for (size_t i = 0; i < descriptorCount; i++) {
-        uint8_t type;
-        if (!unflattener.read(&type)) {
+    for (size_t j = 0; j < 2; j++) {
+        uint8_t descriptorCount;
+        if (!unflattener.read(&descriptorCount)) {
             return false;
         }
-        uint8_t stageFlags;
-        if (!unflattener.read(&stageFlags)) {
-            return false;
+        auto& descriptors = (*container)[j].bindings;
+        descriptors.reserve(descriptorCount);
+        for (size_t i = 0; i < descriptorCount; i++) {
+            uint8_t type;
+            if (!unflattener.read(&type)) {
+                return false;
+            }
+            uint8_t stageFlags;
+            if (!unflattener.read(&stageFlags)) {
+                return false;
+            }
+            uint8_t binding;
+            if (!unflattener.read(&binding)) {
+                return false;
+            }
+            uint8_t flags;
+            if (!unflattener.read(&flags)) {
+                return false;
+            }
+            uint16_t count;
+            if (!unflattener.read(&count)) {
+                return false;
+            }
+            descriptors.push_back({
+                    DescriptorType(type),
+                    ShaderStageFlags(stageFlags),
+                    descriptor_binding_t(binding),
+                    DescriptorFlags(flags),
+                    count,
+            });
         }
-        uint8_t binding;
-        if (!unflattener.read(&binding)) {
-            return false;
-        }
-        uint8_t flags;
-        if (!unflattener.read(&flags)) {
-            return false;
-        }
-        uint16_t count;
-        if (!unflattener.read(&count)) {
-            return false;
-        }
-        descriptors.push_back({
-            DescriptorType(type),
-            ShaderStageFlags(stageFlags),
-            descriptor_binding_t(binding),
-            DescriptorFlags(flags),
-            count,
-        });
     }
     return true;
 }

filament/src/MaterialParser.h

@@ -93,7 +93,7 @@ public:
     using DescriptorBindingsContainer = backend::Program::DescriptorSetInfo;
     bool getDescriptorBindings(DescriptorBindingsContainer* container) const noexcept;
 
-    using DescriptorSetLayoutContainer = backend::DescriptorSetLayout;
+    using DescriptorSetLayoutContainer = std::array<backend::DescriptorSetLayout, 2>;
     bool getDescriptorSetLayout(DescriptorSetLayoutContainer* container) const noexcept;
 
     bool getDepthWriteSet(bool* value) const noexcept;

filament/src/PostProcessManager.cpp

@@ -232,7 +232,7 @@ PostProcessManager::~PostProcessManager() noexcept = default;
 void PostProcessManager::setFrameUniforms(DriverApi& driver,
         TypedUniformBuffer<PerViewUib>& uniforms) noexcept {
     mPostProcessDescriptorSet.setFrameUniforms(driver, uniforms);
-    mSsrPassDescriptorSet.setFrameUniforms(mEngine, uniforms);
+    mSsrPassDescriptorSet.setFrameUniforms(uniforms);
 }
 
 void PostProcessManager::bindPostProcessDescriptorSet(DriverApi& driver) const noexcept {
@@ -504,7 +504,6 @@ PostProcessManager::StructurePassOutput PostProcessManager::structure(FrameGraph
                         FrameGraphTexture::Usage::DEPTH_ATTACHMENT);
 
                 if (config.picking) {
-                    // FIXME: the DescriptorSetLayout must specify SAMPLER_FLOAT
                     data.picking = builder.createTexture("Picking Buffer", {
                             .width = width, .height = height,
                             .format = isES2 ? TextureFormat::RGBA8 : TextureFormat::RG32F });
@@ -654,7 +653,7 @@ FrameGraphId<FrameGraphTexture> PostProcessManager::ssr(FrameGraph& fg,
                     options, passBuilder = passBuilder]
             (FrameGraphResources const& resources, auto const& data, DriverApi& driver) mutable {
                 // set structure sampler
-                mSsrPassDescriptorSet.prepareStructure(mEngine, data.structure ?
+                mSsrPassDescriptorSet.prepareStructure(data.structure ?
                         resources.getTexture(data.structure) : getOneTexture());
 
                 // set screen-space reflections and screen-space refractions
@@ -665,7 +664,7 @@ FrameGraphId<FrameGraphTexture> PostProcessManager::ssr(FrameGraph& fg,
                 // the history sampler is a regular texture2D
                 TextureHandle const history = data.history ?
                         resources.getTexture(data.history) : getZeroTexture();
-                mSsrPassDescriptorSet.prepareHistorySSR(mEngine, history, reprojection, uvFromViewMatrix, options);
+                mSsrPassDescriptorSet.prepareHistorySSR(history, reprojection, uvFromViewMatrix, options);
 
                 mSsrPassDescriptorSet.commit(mEngine);
 

filament/src/RenderPass.cpp

@@ -921,6 +921,7 @@ backend::Viewport RenderPass::Executor::applyScissorViewport(
 UTILS_NOINLINE // no need to be inlined
 void RenderPass::Executor::execute(FEngine const& engine, DriverApi& driver,
         Command const* first, Command const* last) const noexcept {
+
     SYSTRACE_CALL();
     SYSTRACE_CONTEXT();
 
@@ -941,13 +942,6 @@ void RenderPass::Executor::execute(FEngine const& engine, DriverApi& driver,
             driver.scissor(mScissor);
         }
 
-        // If we have a mColorPassDescriptorSet, we need to use its idea of "VSM" to select
-        // the descriptor set layout. Materials always offer both.
-        // If we don't have a mColorPassDescriptorSet, it doesn't matter because the layout
-        // are chosen via the variant only.
-        bool const useVsmDescriptorSetLayout =
-                mColorPassDescriptorSet ? mColorPassDescriptorSet->isVSM() : false;
-
         bool const polygonOffsetOverride = mPolygonOffsetOverride;
         PipelineState pipeline{
                 // initialize with polygon offset override
@@ -1057,13 +1051,8 @@ void RenderPass::Executor::execute(FEngine const& engine, DriverApi& driver,
 
                     // Each material has its own version of the per-view descriptor-set layout,
                     // because it depends on the material features (e.g. lit/unlit)
-                    // TODO: QUESTION: are
-                    //      Variant::isValidDepthVariant(info.materialVariant) and
-                    //      Variant::isSSRVariant(info.materialVariant)
-                    //      constant? If so we could precompute ma->getPerViewDescriptorSetLayout()
                     pipeline.pipelineLayout.setLayout[+DescriptorSetBindingPoints::PER_VIEW] =
-                            ma->getPerViewDescriptorSetLayout(info.materialVariant,
-                                    useVsmDescriptorSetLayout).getHandle();
+                            ma->getPerViewDescriptorSetLayout(info.materialVariant).getHandle();
 
                     // Each material has a per-material descriptor-set layout which encodes the
                     // material's parameters (ubo and samplers)

filament/src/RendererUtils.cpp

@@ -205,13 +205,11 @@ RendererUtils::ColorPassOutput RendererUtils::colorPass(
                 view.prepareSSAO(data.ssao ?
                         resources.getTexture(data.ssao) : engine.getOneTextureArray());
 
-                view.prepareShadowMapping(engine, view.getVsmShadowOptions().highPrecision);
+                view.prepareShadowMapping(view.getVsmShadowOptions().highPrecision);
 
                 // set shadow sampler
                 view.prepareShadow(data.shadows ?
-                        resources.getTexture(data.shadows) :
-                            (view.getShadowType() != ShadowType::PCF ?
-                                engine.getOneTextureArray() : engine.getOneTextureArrayDepth()));
+                        resources.getTexture(data.shadows) : engine.getOneTextureArray());
 
                 // set structure sampler
                 view.prepareStructure(data.structure ?

filament/src/ToneMapper.cpp

@@ -188,8 +188,7 @@ float3 ACES(float3 color, float brightness) noexcept {
 
 #define DEFAULT_CONSTRUCTORS(A) \
         A::A() noexcept = default; \
-        A::~A() noexcept = default; \
-        A::A(A const&) noexcept = default;
+        A::~A() noexcept = default;
 
 DEFAULT_CONSTRUCTORS(ToneMapper)
 
@@ -203,10 +202,6 @@ float3 LinearToneMapper::operator()(float3 const v) const noexcept {
     return saturate(v);
 }
 
-LinearToneMapper* LinearToneMapper::clone() const noexcept {
-    return new LinearToneMapper(*this);
-}
-
 //------------------------------------------------------------------------------
 // ACES tone mappers
 //------------------------------------------------------------------------------
@@ -217,20 +212,12 @@ float3 ACESToneMapper::operator()(float3 const c) const noexcept {
     return aces::ACES(c, 1.0f);
 }
 
-ACESToneMapper* ACESToneMapper::clone() const noexcept {
-    return new ACESToneMapper(*this);
-}
-
 DEFAULT_CONSTRUCTORS(ACESLegacyToneMapper)
 
 float3 ACESLegacyToneMapper::operator()(float3 const c) const noexcept {
     return aces::ACES(c, 1.0f / 0.6f);
 }
 
-ACESLegacyToneMapper* ACESLegacyToneMapper::clone() const noexcept {
-    return new ACESLegacyToneMapper(*this);
-}
-
 DEFAULT_CONSTRUCTORS(FilmicToneMapper)
 
 float3 FilmicToneMapper::operator()(float3 const x) const noexcept {
@@ -243,10 +230,6 @@ float3 FilmicToneMapper::operator()(float3 const x) const noexcept {
     return (x * (a * x + b)) / (x * (c * x + d) + e);
 }
 
-FilmicToneMapper* FilmicToneMapper::clone() const noexcept {
-    return new FilmicToneMapper(*this);
-}
-
 //------------------------------------------------------------------------------
 // PBR Neutral tone mapper
 //------------------------------------------------------------------------------
@@ -273,17 +256,12 @@ float3 PBRNeutralToneMapper::operator()(float3 color) const noexcept {
     return mix(color, float3(newPeak), g);
 }
 
-PBRNeutralToneMapper* PBRNeutralToneMapper::clone() const noexcept {
-    return new PBRNeutralToneMapper(*this);
-}
-
 //------------------------------------------------------------------------------
 // AgX tone mapper
 //------------------------------------------------------------------------------
 
 AgxToneMapper::AgxToneMapper(AgxLook const look) noexcept : look(look) {}
 AgxToneMapper::~AgxToneMapper() noexcept = default;
-AgxToneMapper::AgxToneMapper(AgxToneMapper const& rhs) noexcept = default;
 
 // These matrices taken from Blender's implementation of AgX, which works with Rec.2020 primaries.
 // https://github.com/EaryChow/AgX_LUT_Gen/blob/main/AgXBaseRec2020.py
@@ -378,10 +356,6 @@ float3 AgxToneMapper::operator()(float3 v) const noexcept {
     return v;
 }
 
-AgxToneMapper* AgxToneMapper::clone() const noexcept {
-    return new AgxToneMapper(*this);
-}
-
 //------------------------------------------------------------------------------
 // Display range tone mapper
 //------------------------------------------------------------------------------
@@ -420,10 +394,6 @@ float3 DisplayRangeToneMapper::operator()(float3 const c) const noexcept {
     return mix(debugColors[index], debugColors[index + 1], saturate(v - float(index)));
 }
 
-DisplayRangeToneMapper* DisplayRangeToneMapper::clone() const noexcept {
-    return new DisplayRangeToneMapper(*this);
-}
-
 //------------------------------------------------------------------------------
 // Generic tone mapper
 //------------------------------------------------------------------------------
@@ -484,19 +454,7 @@ GenericToneMapper::~GenericToneMapper() noexcept {
     delete mOptions;
 }
 
-GenericToneMapper::GenericToneMapper(GenericToneMapper const& rhs) noexcept {
-    mOptions = new Options(*rhs.mOptions);
-}
-
-GenericToneMapper& GenericToneMapper::operator=(GenericToneMapper const& rhs) noexcept {
-    if (this != &rhs) {
-        delete mOptions;
-        mOptions = new Options(*rhs.mOptions);
-    }
-    return *this;
-}
-
-GenericToneMapper::GenericToneMapper(GenericToneMapper&& rhs) noexcept : mOptions(rhs.mOptions) {
+GenericToneMapper::GenericToneMapper(GenericToneMapper&& rhs)  noexcept : mOptions(rhs.mOptions) {
     rhs.mOptions = nullptr;
 }
 
@@ -511,10 +469,6 @@ float3 GenericToneMapper::operator()(float3 x) const noexcept {
     return mOptions->outputScale * x / (x + mOptions->inputScale);
 }
 
-GenericToneMapper* GenericToneMapper::clone() const noexcept {
-    return new GenericToneMapper(*this);
-}
-
 float GenericToneMapper::getContrast() const noexcept { return  mOptions->contrast; }
 float GenericToneMapper::getMidGrayIn() const noexcept { return  mOptions->midGrayIn; }
 float GenericToneMapper::getMidGrayOut() const noexcept { return  mOptions->midGrayOut; }

filament/src/details/ColorGrading.cpp

@@ -49,7 +49,7 @@ using namespace backend;
 //------------------------------------------------------------------------------
 
 struct ColorGrading::BuilderDetails {
-    std::shared_ptr<ToneMapper> toneMapper = nullptr;
+    const ToneMapper* toneMapper = nullptr;
 
 #if defined(__clang__)
 #pragma clang diagnostic push
@@ -173,7 +173,7 @@ ColorGrading::Builder& ColorGrading::Builder::dimensions(uint8_t const dim) noex
     return *this;
 }
 
-ColorGrading::Builder& ColorGrading::Builder::toneMapper(std::shared_ptr<ToneMapper> toneMapper) noexcept {
+ColorGrading::Builder& ColorGrading::Builder::toneMapper(const ToneMapper* toneMapper) noexcept {
     mImpl->toneMapper = toneMapper;
     return *this;
 }
@@ -271,110 +271,6 @@ ColorGrading::Builder& ColorGrading::Builder::outputColorSpace(
     return *this;
 }
 
-ColorGrading::LutFormat ColorGrading::getLutFormat() const noexcept {
-    return mSettings.lutFormat;
-}
-
-uint8_t ColorGrading::getLutDimensions() const noexcept {
-    return mSettings.lutDimensions;
-}
-
-const ToneMapper& ColorGrading::getToneMapper() const noexcept {
-    return *mSettings.toneMapper;
-}
-
-bool ColorGrading::isLuminanceScalingEnabled() const noexcept {
-    return mSettings.luminanceScaling;
-}
-
-bool ColorGrading::isGamutMappingEnabled() const noexcept {
-    return mSettings.gummapMapping;
-}
-
-float ColorGrading::getExposure() const noexcept {
-    return mSettings.exposure;
-}
-
-float ColorGrading::getNightAdaptation() const noexcept {
-    return mSettings.nightAdaptation;
-}
-
-float ColorGrading::getWhiteBalanceTemperature() const noexcept {
-    return mSettings.whiteBalanceTemperature;
-}
-
-float ColorGrading::getWhiteBalanceTint() const noexcept {
-    return mSettings.whiteBalanceTint;
-}
-
-math::float3 ColorGrading::getChannelMixerOutRed() const noexcept {
-    return mSettings.channelMixerOutRed;
-}
-
-math::float3 ColorGrading::getChannelMixerOutGreen() const noexcept {
-    return mSettings.channelMixerOutGreen;
-}
-
-math::float3 ColorGrading::getChannelMixerOutBlue() const noexcept {
-    return mSettings.channelMixerOutBlue;
-}
-
-math::float3 ColorGrading::getShadows() const noexcept {
-    return mSettings.shadows;
-}
-
-math::float3 ColorGrading::getMidtones() const noexcept {
-    return mSettings.midtones;
-}
-
-math::float3 ColorGrading::getHighlights() const noexcept {
-    return mSettings.highlights;
-}
-
-math::float4 ColorGrading::getShadowMidtonesHighlightsRanges() const noexcept {
-    return mSettings.ShadowMidtonesHighlightsRanges;
-}
-
-math::float3 ColorGrading::getSlope() const noexcept {
-    return mSettings.slope;
-}
-
-math::float3 ColorGrading::getOffset() const noexcept {
-    return mSettings.offset;
-}
-
-math::float3 ColorGrading::getPower() const noexcept {
-    return mSettings.power;
-}
-
-float ColorGrading::getContrast() const noexcept {
-    return mSettings.contrast;
-}
-
-float ColorGrading::getVibrance() const noexcept {
-    return mSettings.vibrance;
-}
-
-float ColorGrading::getSaturation() const noexcept {
-    return mSettings.saturation;
-}
-
-math::float3 ColorGrading::getCurvesShadowGamma() const noexcept {
-    return mSettings.curvesShadowGamma;
-}
-
-math::float3 ColorGrading::getCurvesMidPoint() const noexcept {
-    return mSettings.curvesMidPoint;
-}
-
-math::float3 ColorGrading::getCurvesHighlightScale() const noexcept {
-    return mSettings.curvesHighlightScale;
-}
-
-const color::ColorSpace& ColorGrading::getOutputColorSpace() const noexcept {
-    return mSettings.colorSpace;
-}
-
 #if defined(__clang__)
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wdeprecated-declarations"
@@ -391,25 +287,30 @@ ColorGrading* ColorGrading::Builder::build(Engine& engine) {
     if (needToneMapper) {
         switch (mImpl->toneMapping) {
             case ToneMapping::LINEAR:
-                mImpl->toneMapper = std::make_shared<LinearToneMapper>();
+                mImpl->toneMapper = new LinearToneMapper();
                 break;
             case ToneMapping::ACES_LEGACY:
-                mImpl->toneMapper = std::make_shared<ACESLegacyToneMapper>();
+                mImpl->toneMapper = new ACESLegacyToneMapper();
                 break;
             case ToneMapping::ACES:
-                mImpl->toneMapper = std::make_shared<ACESToneMapper>();
+                mImpl->toneMapper = new ACESToneMapper();
                 break;
             case ToneMapping::FILMIC:
-                mImpl->toneMapper = std::make_shared<FilmicToneMapper>();
+                mImpl->toneMapper = new FilmicToneMapper();
                 break;
             case ToneMapping::DISPLAY_RANGE:
-                mImpl->toneMapper = std::make_shared<DisplayRangeToneMapper>();
+                mImpl->toneMapper = new DisplayRangeToneMapper();
                 break;
         }
     }
 
     FColorGrading* colorGrading = downcast(engine).createColorGrading(*this);
 
+    if (needToneMapper) {
+        delete mImpl->toneMapper;
+        mImpl->toneMapper = nullptr;
+    }
+
     return colorGrading;
 }
 
@@ -985,9 +886,6 @@ FColorGrading::FColorGrading(FEngine& engine, const Builder& builder) {
                 data, lutElementCount * elementSize, format, type,
                         [](void* buffer, size_t, void*) { free(buffer); }
                         });
-
-    // Initialize settings from builder
-    initializeSettings(builder, mSettings);
 }
 
 FColorGrading::~FColorGrading() noexcept = default;
@@ -997,33 +895,4 @@ void FColorGrading::terminate(FEngine& engine) {
     driver.destroyTexture(mLutHandle);
 }
 
-void FColorGrading::initializeSettings(const Builder& builder, Settings& settings) noexcept {
-    settings.lutFormat = builder->format;
-    settings.lutDimensions = builder->dimension;
-    settings.toneMapper = builder->toneMapper;
-    settings.luminanceScaling = builder->luminanceScaling;
-    settings.gummapMapping = builder->gamutMapping;
-    settings.exposure = builder->exposure;
-    settings.nightAdaptation = builder->nightAdaptation;
-    settings.whiteBalanceTemperature = builder->whiteBalance.x;
-    settings.whiteBalanceTint = builder->whiteBalance.y;
-    settings.channelMixerOutRed = builder->outRed;
-    settings.channelMixerOutGreen = builder->outGreen;
-    settings.channelMixerOutBlue = builder->outBlue;
-    settings.shadows = builder->shadows;
-    settings.midtones = builder->midtones;
-    settings.highlights = builder->highlights;
-    settings.ShadowMidtonesHighlightsRanges = builder->tonalRanges;
-    settings.slope = builder->slope;
-    settings.offset = builder->offset;
-    settings.power = builder->power;
-    settings.contrast = builder->contrast;
-    settings.vibrance = builder->vibrance;
-    settings.saturation = builder->saturation;
-    settings.curvesShadowGamma = builder->shadowGamma;
-    settings.curvesMidPoint = builder->midPoint;
-    settings.curvesHighlightScale = builder->highlightScale;
-    settings.colorSpace = builder->outputColorSpace;
-}
-
 } //namespace filament

filament/src/details/ColorGrading.h

@@ -51,8 +51,6 @@ private:
     uint32_t mDimension;
     bool mIsOneDimensional;
     bool mIsLDR;
-
-    static void initializeSettings(const Builder& builder, Settings& settings) noexcept;
 };
 
 FILAMENT_DOWNCAST(ColorGrading)

filament/src/details/Engine.cpp

@@ -361,6 +361,8 @@ void FEngine::init() {
     }
 
     // initialize the dummy textures so that their contents are not undefined
+    static constexpr uint32_t zeroes[6] = {};
+    static constexpr uint32_t ones = 0xffffffff;
 
     mDefaultIblTexture = downcast(Texture::Builder()
             .width(1).height(1).levels(1)
@@ -369,8 +371,7 @@ void FEngine::init() {
             .build(*this));
 
     driverApi.update3DImage(mDefaultIblTexture->getHwHandle(), 0, 0, 0, 0, 1, 1, 6,
-            { std::array<uint8_t, 6>{}.data(), 6,
-                Texture::Format::RGBA, Texture::Type::UBYTE });
+            { zeroes, sizeof(zeroes), Texture::Format::RGBA, Texture::Type::UBYTE });
 
     // 3 bands = 9 float3
     constexpr float sh[9 * 3] = { 0.0f };
@@ -392,12 +393,10 @@ void FEngine::init() {
             TextureFormat::RGBA8, 1, 1, 1, 1, TextureUsage::DEFAULT);
 
     driverApi.update3DImage(mDummyOneTexture, 0, 0, 0, 0, 1, 1, 1,
-            { std::array<uint8_t, 4>{0xff, 0xff, 0xff, 0xff}.data(), 4,
-                Texture::Format::RGBA, Texture::Type::UBYTE });
+            { &ones, 4, Texture::Format::RGBA, Texture::Type::UBYTE });
 
     driverApi.update3DImage(mDummyZeroTexture, 0, 0, 0, 0, 1, 1, 1,
-            { std::array<uint8_t, 4>{}.data(), 4,
-                Texture::Format::RGBA, Texture::Type::UBYTE });
+            { zeroes, 4, Texture::Format::RGBA, Texture::Type::UBYTE });
 
 
     mPerViewDescriptorSetLayoutSsrVariant = {
@@ -424,28 +423,25 @@ void FEngine::init() {
     } else
 #endif
     {
+        mDefaultColorGrading = downcast(ColorGrading::Builder().build(*this));
+
         FMaterial::DefaultMaterialBuilder defaultMaterialBuilder;
         switch (mConfig.stereoscopicType) {
             case StereoscopicType::NONE:
             case StereoscopicType::INSTANCED:
                 defaultMaterialBuilder.package(
-                        MATERIALS_DEFAULTMATERIAL_DATA, MATERIALS_DEFAULTMATERIAL_SIZE);
+                    MATERIALS_DEFAULTMATERIAL_DATA, MATERIALS_DEFAULTMATERIAL_SIZE);
                 break;
             case StereoscopicType::MULTIVIEW:
 #ifdef FILAMENT_ENABLE_MULTIVIEW
                 defaultMaterialBuilder.package(
-                        MATERIALS_DEFAULTMATERIAL_MULTIVIEW_DATA,
-                        MATERIALS_DEFAULTMATERIAL_MULTIVIEW_SIZE);
+                    MATERIALS_DEFAULTMATERIAL_MULTIVIEW_DATA, MATERIALS_DEFAULTMATERIAL_MULTIVIEW_SIZE);
 #else
                 assert_invariant(false);
 #endif
                 break;
         }
         mDefaultMaterial = downcast(defaultMaterialBuilder.build(*this));
-    }
-
-    if (UTILS_UNLIKELY(getSupportedFeatureLevel() >= FeatureLevel::FEATURE_LEVEL_1)) {
-        mDefaultColorGrading = downcast(ColorGrading::Builder().build(*this));
 
         constexpr float3 dummyPositions[1] = {};
         constexpr short4 dummyTangents[1] = {};
@@ -455,26 +451,14 @@ void FEngine::init() {
         mDummyOneTextureArray = driverApi.createTexture(SamplerType::SAMPLER_2D_ARRAY, 1,
                 TextureFormat::RGBA8, 1, 1, 1, 1, TextureUsage::DEFAULT);
 
-        mDummyOneTextureArrayDepth = driverApi.createTexture(SamplerType::SAMPLER_2D_ARRAY, 1,
-                TextureFormat::DEPTH32F, 1, 1, 1, 1, TextureUsage::DEFAULT);
-
         mDummyZeroTextureArray = driverApi.createTexture(SamplerType::SAMPLER_2D_ARRAY, 1,
                 TextureFormat::RGBA8, 1, 1, 1, 1, TextureUsage::DEFAULT);
 
         driverApi.update3DImage(mDummyOneTextureArray, 0, 0, 0, 0, 1, 1, 1,
-                { std::array<uint8_t, 4>{0xff, 0xff, 0xff, 0xff}.data(), 4,
-                    Texture::Format::RGBA, Texture::Type::UBYTE });
-
-        driverApi.update3DImage(mDummyOneTextureArrayDepth, 0, 0, 0, 0, 1, 1, 1,
-                { std::array<float, 1>{1.0f}.data(), 4,
-                    Texture::Format::DEPTH_COMPONENT, Texture::Type::FLOAT });
+                { &ones, 4, Texture::Format::RGBA, Texture::Type::UBYTE });
 
         driverApi.update3DImage(mDummyZeroTextureArray, 0, 0, 0, 0, 1, 1, 1,
-                { std::array<uint8_t, 4>{}.data(), 4,
-                    Texture::Format::RGBA, Texture::Type::UBYTE });
-
-        mDummyUniformBuffer = driverApi.createBufferObject(CONFIG_MINSPEC_UBO_SIZE,
-                BufferObjectBinding::UNIFORM, BufferUsage::STATIC);
+                { zeroes, 4, Texture::Format::RGBA, Texture::Type::UBYTE });
 
         mLightManager.init(*this);
         mDFG.init(*this);
@@ -624,8 +608,6 @@ void FEngine::shutdown() {
     driver.destroyTexture(std::move(mDummyZeroTexture));
     driver.destroyTexture(std::move(mDummyZeroTextureArray));
 
-    driver.destroyBufferObject(std::move(mDummyUniformBuffer));
-
     driver.destroyRenderTarget(std::move(mDefaultRenderTarget));
 
     /*
@@ -730,7 +712,8 @@ int FEngine::loop() {
     if (mPlatform == nullptr) {
         mPlatform = PlatformFactory::create(&mBackend);
         mOwnPlatform = true;
-        slog.i << "FEngine resolved backend: " << to_string(mBackend) << io::endl;
+        const char* const backend = backendToString(mBackend);
+        slog.i << "FEngine resolved backend: " << backend << io::endl;
         if (mPlatform == nullptr) {
             slog.e << "Selected backend not supported in this build." << io::endl;
             mDriverBarrier.latch();

filament/src/details/Engine.h

@@ -486,29 +486,10 @@ public:
         return mPerRenderableDescriptorSetLayout;
     }
 
-    backend::Handle<backend::HwTexture> getOneTexture() const {
-        return mDummyOneTexture;
-    }
-
-    backend::Handle<backend::HwTexture> getOneTextureArray() const {
-        return mDummyOneTextureArray;
-    }
-
-    backend::Handle<backend::HwTexture> getOneTextureArrayDepth() const {
-        return mDummyOneTextureArrayDepth;
-    }
-
-    backend::Handle<backend::HwTexture> getZeroTexture() const {
-        return mDummyZeroTexture;
-    }
-
-    backend::Handle<backend::HwTexture> getZeroTextureArray() const {
-        return mDummyZeroTextureArray;
-    }
-
-    backend::Handle<backend::HwBufferObject> getDummyUniformBuffer() const {
-        return mDummyUniformBuffer;
-    }
+    backend::Handle<backend::HwTexture> getOneTexture() const { return mDummyOneTexture; }
+    backend::Handle<backend::HwTexture> getZeroTexture() const { return mDummyZeroTexture; }
+    backend::Handle<backend::HwTexture> getOneTextureArray() const { return mDummyOneTextureArray; }
+    backend::Handle<backend::HwTexture> getZeroTextureArray() const { return mDummyZeroTextureArray; }
 
     static constexpr size_t MiB = 1024u * 1024u;
     size_t getMinCommandBufferSize() const noexcept { return mConfig.minCommandBufferSizeMB * MiB; }
@@ -647,10 +628,8 @@ private:
 
     backend::Handle<backend::HwTexture> mDummyOneTexture;
     backend::Handle<backend::HwTexture> mDummyOneTextureArray;
-    backend::Handle<backend::HwTexture> mDummyOneTextureArrayDepth;
     backend::Handle<backend::HwTexture> mDummyZeroTextureArray;
     backend::Handle<backend::HwTexture> mDummyZeroTexture;
-    backend::Handle<backend::HwBufferObject> mDummyUniformBuffer;
 
     std::thread::id mMainThreadId{};
 

filament/src/details/Material.cpp

@@ -96,7 +96,7 @@ static std::unique_ptr<MaterialParser> createParser(Backend const backend,
 
         FILAMENT_CHECK_PRECONDITION(
                 materialResult != MaterialParser::ParseResult::ERROR_MISSING_BACKEND)
-                << "the material was not built for any of the " << to_string(backend)
+                << "the material was not built for any of the " << backendToString(backend)
                 << " backend's supported shader languages (" << languageNames.c_str() << ")\n";
     }
 
@@ -329,12 +329,11 @@ FMaterial::FMaterial(FEngine& engine, const Builder& builder,
 
     parser->hasCustomDepthShader(&mHasCustomDepthShader);
 
-    bool const isLit = mIsVariantLit || mHasShadowMultiplier;
-    bool const isSSR = mReflectionMode == ReflectionMode::SCREEN_SPACE ||
-            mRefractionMode == RefractionMode::SCREEN_SPACE;
-    bool const hasFog = !(mVariantFilterMask & UserVariantFilterMask(UserVariantFilterBit::FOG));
-
-    mPerViewLayoutIndex = ColorPassDescriptorSet::getIndex(isLit, isSSR, hasFog);
+    mPerViewLayoutIndex = ColorPassDescriptorSet::getIndex(
+            mIsVariantLit,
+            mReflectionMode == ReflectionMode::SCREEN_SPACE ||
+            mRefractionMode == RefractionMode::SCREEN_SPACE,
+            !(mVariantFilterMask & +UserVariantFilterBit::FOG));
 
     processBlendingMode(parser);
     processSpecializationConstants(engine, builder, parser);
@@ -408,7 +407,6 @@ void FMaterial::terminate(FEngine& engine) {
 
     DriverApi& driver = engine.getDriverApi();
     mPerViewDescriptorSetLayout.terminate(engine.getDescriptorSetLayoutFactory(), driver);
-    mPerViewDescriptorSetLayoutVsm.terminate(engine.getDescriptorSetLayoutFactory(), driver);
     mDescriptorSetLayout.terminate(engine.getDescriptorSetLayoutFactory(), driver);
 }
 
@@ -611,12 +609,9 @@ Program FMaterial::getProgramWithVariants(
         program.attributes(mAttributeInfo);
     }
 
-    program.descriptorBindings(+DescriptorSetBindingPoints::PER_VIEW,
-            mProgramDescriptorBindings[+DescriptorSetBindingPoints::PER_VIEW]);
-    program.descriptorBindings(+DescriptorSetBindingPoints::PER_RENDERABLE,
-            mProgramDescriptorBindings[+DescriptorSetBindingPoints::PER_RENDERABLE]);
-    program.descriptorBindings(+DescriptorSetBindingPoints::PER_MATERIAL,
-            mProgramDescriptorBindings[+DescriptorSetBindingPoints::PER_MATERIAL]);
+    program.descriptorBindings(0, mProgramDescriptorBindings[0]);
+    program.descriptorBindings(1, mProgramDescriptorBindings[1]);
+    program.descriptorBindings(2, mProgramDescriptorBindings[2]);
     program.specializationConstants(mSpecializationConstants);
 
     program.pushConstants(ShaderStage::VERTEX, mPushConstants[uint8_t(ShaderStage::VERTEX)]);
@@ -1145,55 +1140,37 @@ void FMaterial::precacheDepthVariants(FEngine& engine) {
 void FMaterial::processDescriptorSets(FEngine& engine, MaterialParser const* const parser) {
     UTILS_UNUSED_IN_RELEASE bool success;
 
+
     success = parser->getDescriptorBindings(&mProgramDescriptorBindings);
     assert_invariant(success);
 
-    backend::DescriptorSetLayout descriptorSetLayout;
+    std::array<backend::DescriptorSetLayout, 2> descriptorSetLayout;
     success = parser->getDescriptorSetLayout(&descriptorSetLayout);
     assert_invariant(success);
 
-    // get the PER_VIEW descriptor binding info
-    bool const isLit = mIsVariantLit || mHasShadowMultiplier;
-    bool const isSSR = mReflectionMode == ReflectionMode::SCREEN_SPACE ||
-            mRefractionMode == RefractionMode::SCREEN_SPACE;
-    bool const hasFog = !(mVariantFilterMask & UserVariantFilterMask(UserVariantFilterBit::FOG));
+    // Setup Labels for debugging
+    utils::CString namestr;
+    utils::StaticString perViewStr = "_perView";
+    utils::StaticString singleStr = "_single";
 
-    auto perViewDescriptorSetLayout = descriptor_sets::getPerViewDescriptorSetLayout(
-            mMaterialDomain, isLit, isSSR, hasFog, false);
+    parser->getName(&namestr);
 
-    auto perViewDescriptorSetLayoutVsm = descriptor_sets::getPerViewDescriptorSetLayout(
-            mMaterialDomain, isLit, isSSR, hasFog, true);
+    utils::CString singleLabel(namestr.c_str(), namestr.length() + singleStr.length());
+    memccpy(singleLabel.c_str() + namestr.length(), singleStr.c_str(), '\0', singleStr.length());
 
-    // set the labels
-    descriptorSetLayout.label = CString{ mName }.append("_perMat");
-    perViewDescriptorSetLayout.label = CString{ mName }.append("_perView");
-    perViewDescriptorSetLayoutVsm.label = CString{ mName }.append("_perViewVsm");
+    utils::CString perViewLabel(namestr.c_str(), namestr.length() + perViewStr.length());
+    memccpy(perViewLabel.c_str() + namestr.length(), perViewStr.c_str(), '\0', perViewStr.length());
 
-    // get the PER_RENDERABLE and PER_VIEW descriptor binding info
-    for (auto&& [bindingPoint, descriptorSetLayout] : {
-            std::pair{ DescriptorSetBindingPoints::PER_RENDERABLE,
-                    descriptor_sets::getPerRenderableLayout() },
-            std::pair{ DescriptorSetBindingPoints::PER_VIEW,
-                    perViewDescriptorSetLayout }}) {
-        Program::DescriptorBindingsInfo& descriptors = mProgramDescriptorBindings[+bindingPoint];
-        descriptors.reserve(descriptorSetLayout.bindings.size());
-        for (auto const& entry: descriptorSetLayout.bindings) {
-            auto const& name = descriptor_sets::getDescriptorName(bindingPoint, entry.binding);
-            descriptors.push_back({ name, entry.type, entry.binding });
-        }
-    }
+    descriptorSetLayout[0].label = namestr;
+    descriptorSetLayout[1].label = perViewLabel;
 
     mDescriptorSetLayout = {
             engine.getDescriptorSetLayoutFactory(),
-            engine.getDriverApi(), std::move(descriptorSetLayout) };
+            engine.getDriverApi(), std::move(descriptorSetLayout[0]) };
 
     mPerViewDescriptorSetLayout = {
             engine.getDescriptorSetLayoutFactory(),
-            engine.getDriverApi(), std::move(perViewDescriptorSetLayout) };
-
-    mPerViewDescriptorSetLayoutVsm = {
-            engine.getDescriptorSetLayoutFactory(),
-            engine.getDriverApi(), std::move(perViewDescriptorSetLayoutVsm) };
+            engine.getDriverApi(), std::move(descriptorSetLayout[1]) };
 }
 
 descriptor_binding_t FMaterial::getSamplerBinding(

filament/src/details/Material.h

@@ -93,8 +93,7 @@ public:
         return mPerViewDescriptorSetLayout;
     }
 
-    DescriptorSetLayout const& getPerViewDescriptorSetLayout(
-            Variant const variant, bool const useVsmDescriptorSetLayout) const noexcept {
+    DescriptorSetLayout const& getPerViewDescriptorSetLayout(Variant const variant) const noexcept {
         if (Variant::isValidDepthVariant(variant)) {
             assert_invariant(mMaterialDomain == MaterialDomain::SURFACE);
             return mEngine.getPerViewDescriptorSetLayoutDepthVariant();
@@ -103,10 +102,6 @@ public:
             assert_invariant(mMaterialDomain == MaterialDomain::SURFACE);
             return mEngine.getPerViewDescriptorSetLayoutSsrVariant();
         }
-        if (useVsmDescriptorSetLayout) {
-            assert_invariant(mMaterialDomain == MaterialDomain::SURFACE);
-            return mPerViewDescriptorSetLayoutVsm;
-        }
         return mPerViewDescriptorSetLayout;
     }
 
@@ -317,7 +312,6 @@ private:
     // try to order by frequency of use
     mutable std::array<backend::Handle<backend::HwProgram>, VARIANT_COUNT> mCachedPrograms;
     DescriptorSetLayout mPerViewDescriptorSetLayout;
-    DescriptorSetLayout mPerViewDescriptorSetLayoutVsm;
     DescriptorSetLayout mDescriptorSetLayout;
     backend::Program::DescriptorSetInfo mProgramDescriptorBindings;
 

filament/src/details/MaterialInstance.cpp

@@ -50,8 +50,6 @@
 #include <string_view>
 #include <utility>
 
-#include <stddef.h>
-
 using namespace filament::math;
 using namespace utils;
 
@@ -76,17 +74,15 @@ FMaterialInstance::FMaterialInstance(FEngine& engine, FMaterial const* material,
 
     FEngine::DriverApi& driver = engine.getDriverApi();
 
-    // even if the material doesn't have any parameters, we allocate a small UBO because it's
-    // expected by the per-material descriptor-set layout
-    size_t const uboSize = std::max(size_t(16), material->getUniformInterfaceBlock().getSize());
-    mUniforms = UniformBuffer(uboSize);
-    mUbHandle = driver.createBufferObject(mUniforms.getSize(),
-            BufferObjectBinding::UNIFORM, BufferUsage::STATIC);
-    driver.setDebugTag(mUbHandle.getId(), material->getName());
+    if (!material->getUniformInterfaceBlock().isEmpty()) {
+        mUniforms = UniformBuffer(material->getUniformInterfaceBlock().getSize());
+        mUbHandle = driver.createBufferObject(mUniforms.getSize(),
+                BufferObjectBinding::UNIFORM, BufferUsage::STATIC);
+        driver.setDebugTag(mUbHandle.getId(), material->getName());
+    }
 
     // set the UBO, always descriptor 0
-    mDescriptorSet.setBuffer(material->getDescriptorSetLayout(),
-        0, mUbHandle, 0, mUniforms.getSize());
+    mDescriptorSet.setBuffer(0, mUbHandle, 0, mUniforms.getSize());
 
     const RasterState& rasterState = material->getRasterState();
     // At the moment, only MaterialInstances have a stencil state, but in the future it should be
@@ -146,15 +142,15 @@ FMaterialInstance::FMaterialInstance(FEngine& engine,
     FEngine::DriverApi& driver = engine.getDriverApi();
     FMaterial const* const material = other->getMaterial();
 
-    size_t const uboSize = std::max(size_t(16), material->getUniformInterfaceBlock().getSize());
-    mUniforms = UniformBuffer(uboSize);
-    mUbHandle = driver.createBufferObject(mUniforms.getSize(),
-            BufferObjectBinding::UNIFORM, BufferUsage::DYNAMIC);
-    driver.setDebugTag(mUbHandle.getId(), material->getName());
+    if (!material->getUniformInterfaceBlock().isEmpty()) {
+        mUniforms.setUniforms(other->getUniformBuffer());
+        mUbHandle = driver.createBufferObject(mUniforms.getSize(),
+                BufferObjectBinding::UNIFORM, BufferUsage::DYNAMIC);
+        driver.setDebugTag(mUbHandle.getId(), material->getName());
+    }
 
     // set the UBO, always descriptor 0
-    mDescriptorSet.setBuffer(mMaterial->getDescriptorSetLayout(),
-            0, mUbHandle, 0, mUniforms.getSize());
+    mDescriptorSet.setBuffer(0, mUbHandle, 0, mUniforms.getSize());
 
     if (material->hasDoubleSidedCapability()) {
         setDoubleSided(mIsDoubleSided);
@@ -227,8 +223,7 @@ void FMaterialInstance::commit(DriverApi& driver) const {
                     << "Invalid texture still bound to MaterialInstance: '" << getName() << "'\n";
             Handle<HwTexture> const handle = p.texture->getHwHandleForSampling();
             assert_invariant(handle);
-            mDescriptorSet.setSampler(mMaterial->getDescriptorSetLayout(),
-                binding, handle, p.params);
+            mDescriptorSet.setSampler(binding, handle, p.params);
         }
     }
 
@@ -244,9 +239,7 @@ void FMaterialInstance::commit(DriverApi& driver) const {
 void FMaterialInstance::setParameter(std::string_view const name,
         Handle<HwTexture> texture, SamplerParams const params) {
     auto const binding = mMaterial->getSamplerBinding(name);
-
-    mDescriptorSet.setSampler(mMaterial->getDescriptorSetLayout(),
-        binding, texture, params);
+    mDescriptorSet.setSampler(binding, texture, params);
 }
 
 void FMaterialInstance::setParameterImpl(std::string_view const name,
@@ -273,21 +266,6 @@ void FMaterialInstance::setParameterImpl(std::string_view const name,
 #endif
 
     auto const binding = mMaterial->getSamplerBinding(name);
-
-    if (texture) {
-        auto const& descriptorSetLayout = mMaterial->getDescriptorSetLayout();
-        DescriptorType const descriptorType = descriptorSetLayout.getDescriptorType(binding);
-        TextureType const textureType = texture->getTextureType();
-
-        FILAMENT_CHECK_PRECONDITION(
-                DescriptorSet::isTextureCompatibleWithDescriptor(textureType, descriptorType))
-                << "Texture format " << int(texture->getFormat())
-                << " of type " << to_string(textureType)
-                << " is not compatible with material \"" << getMaterial()->getName().c_str() << "\""
-                << " parameter \"" << name << "\""
-                << " of type " << to_string(descriptorType);
-    }
-
     if (texture && texture->textureHandleCanMutate()) {
         mTextureParameters[binding] = { texture, sampler.getSamplerParams() };
     } else {
@@ -300,8 +278,7 @@ void FMaterialInstance::setParameterImpl(std::string_view const name,
             handle = texture->getHwHandleForSampling();
             assert_invariant(handle == texture->getHwHandle());
         }
-        mDescriptorSet.setSampler(mMaterial->getDescriptorSetLayout(),
-            binding, handle, sampler.getSamplerParams());
+        mDescriptorSet.setSampler(binding, handle, sampler.getSamplerParams());
     }
 }
 
@@ -418,30 +395,29 @@ void FMaterialInstance::fixMissingSamplers() const {
             auto const pos = std::find_if(list.begin(), list.end(), [binding](const auto& item) {
                 return item.binding == binding;
             });
+
+            FEngine const& engine = mMaterial->getEngine();
+
             // just safety-check, should never fail
             if (UTILS_LIKELY(pos != list.end())) {
-                FEngine const& engine = mMaterial->getEngine();
-                filament::DescriptorSetLayout const& layout = mMaterial->getDescriptorSetLayout();
-
-                if (pos->format != SamplerFormat::FLOAT) {
-                    // TODO: we only handle missing samplers that are FLOAT
-                    switch (pos->type) {
-                        case SamplerType::SAMPLER_2D:
-                            mDescriptorSet.setSampler(layout,
-                                    binding, engine.getZeroTexture(), {});
-                            break;
-                        case SamplerType::SAMPLER_2D_ARRAY:
-                            mDescriptorSet.setSampler(layout,
-                                    binding, engine.getZeroTextureArray(), {});
-                            break;
-                        case SamplerType::SAMPLER_CUBEMAP:
-                            mDescriptorSet.setSampler(layout,
-                                    binding, engine.getDummyCubemap()->getHwHandle(), {});
-                            break;
-                        default:
-                            // we're currently not able to fix-up other sampler types
-                            break;
-                    }
+                switch (pos->type) {
+                    case SamplerType::SAMPLER_2D:
+                        mDescriptorSet.setSampler(binding,
+                                engine.getZeroTexture(), {});
+                        break;
+                    case SamplerType::SAMPLER_2D_ARRAY:
+                        mDescriptorSet.setSampler(binding,
+                                engine.getZeroTextureArray(), {});
+                        break;
+                    case SamplerType::SAMPLER_CUBEMAP:
+                        mDescriptorSet.setSampler(binding,
+                                engine.getDummyCubemap()->getHwHandle(), {});
+                        break;
+                    case SamplerType::SAMPLER_EXTERNAL:
+                    case SamplerType::SAMPLER_3D:
+                    case SamplerType::SAMPLER_CUBEMAP_ARRAY:
+                        // we're currently not able to fix-up those
+                        break;
                 }
             }
         });

filament/src/details/MorphTargetBuffer.cpp

@@ -114,8 +114,7 @@ FMorphTargetBuffer::FMorphTargetBuffer(FEngine& engine, const Builder& builder)
         : mVertexCount(builder->mVertexCount),
           mCount(builder->mCount) {
 
-    if (UTILS_UNLIKELY(engine.getSupportedFeatureLevel() <= FeatureLevel::FEATURE_LEVEL_0)) {
-        // feature level 0 doesn't support morph target buffers
+    if (UTILS_UNLIKELY(engine.getActiveFeatureLevel() == FeatureLevel::FEATURE_LEVEL_0)) {
         return;
     }
 

filament/src/details/Renderer.cpp

@@ -977,7 +977,7 @@ void FRenderer::renderJob(RootArenaScope& rootArenaScope, FView& view) {
                 // this descriptor-set is also used for ssr/picking/structure and these could be stale
                 // it would be better to use a separate desriptor-set for those two cases so that we don't
                 // have to do this
-                view.unbindSamplers(engine);
+                view.unbindSamplers(driver);
                 view.commitUniformsAndSamplers(driver);
             });
 

filament/src/details/Texture.cpp

@@ -64,7 +64,7 @@ using namespace math;
 
 // this is a hack to be able to create a std::function<> with a non-copyable closure
 template<class F>
-static auto make_copyable_function(F&& f) {
+auto make_copyable_function(F&& f) {
     using dF = std::decay_t<F>;
     auto spf = std::make_shared<dF>(std::forward<F>(f));
     return [spf](auto&& ... args) -> decltype(auto) {
@@ -274,9 +274,7 @@ Texture* Texture::Builder::build(Engine& engine) {
 
 // ------------------------------------------------------------------------------------------------
 
-FTexture::FTexture(FEngine& engine, const Builder& builder)
-    : mHasBlitSrc(false),
-      mExternal(false) {
+FTexture::FTexture(FEngine& engine, const Builder& builder) {
     FEngine::DriverApi& driver = engine.getDriverApi();
     mDriver = &driver; // this is unfortunately needed for getHwHandleForSampling()
     mWidth  = static_cast<uint32_t>(builder->mWidth);
@@ -290,7 +288,6 @@ FTexture::FTexture(FEngine& engine, const Builder& builder)
     mTextureIsSwizzled = builder->mTextureIsSwizzled;
     mHasBlitSrc = builder->mHasBlitSrc;
     mExternal = builder->mExternal;
-    mTextureType = backend::getTextureType(mFormat);
 
     bool const isImported = builder->mImportedId != 0;
     if (mExternal && !isImported) {
@@ -719,10 +716,6 @@ size_t FTexture::getFormatSize(InternalFormat const format) noexcept {
     return backend::getFormatSize(format);
 }
 
-TextureType FTexture::getTextureType() const noexcept {
-    return mTextureType;
-}
-
 
 void FTexture::generatePrefilterMipmap(FEngine& engine,
         PixelBufferDescriptor&& buffer, const FaceOffsets& faceOffsets,

filament/src/details/Texture.h

@@ -27,9 +27,6 @@
 
 #include <utils/compiler.h>
 
-#include <array>
-#include <cmath>
-
 #include <stddef.h>
 #include <stdint.h>
 
@@ -108,20 +105,18 @@ public:
     // Size a of a pixel in bytes for the given format
     static size_t getFormatSize(InternalFormat format) noexcept;
 
-    backend::TextureType getTextureType() const noexcept;
-
     // Returns the with or height for a given mipmap level from the base value.
-    static size_t valueForLevel(uint8_t const level, size_t const baseLevelValue) {
+    static inline size_t valueForLevel(uint8_t const level, size_t const baseLevelValue) {
         return std::max(size_t(1), baseLevelValue >> level);
     }
 
     // Returns the max number of levels for a texture of given max dimensions
-    static uint8_t maxLevelCount(uint32_t const maxDimension) noexcept {
+    static inline uint8_t maxLevelCount(uint32_t const maxDimension) noexcept {
         return std::max(1, std::ilogbf(float(maxDimension)) + 1);
     }
 
     // Returns the max number of levels for a texture of given dimensions
-    static uint8_t maxLevelCount(uint32_t const width, uint32_t const height) noexcept {
+    static inline uint8_t maxLevelCount(uint32_t const width, uint32_t const height) noexcept {
         uint32_t const maxDimension = std::max(width, height);
         return maxLevelCount(maxDimension);
     }
@@ -137,7 +132,7 @@ public:
     void updateLodRange(uint8_t level) noexcept;
 
     // TODO: remove in a future filament release.  See below for description.
-    bool hasBlitSrcUsage() const noexcept {
+    inline bool hasBlitSrcUsage() const noexcept {
         return mHasBlitSrc;
     }
 
@@ -171,25 +166,23 @@ private:
     uint32_t mWidth = 1;
     uint32_t mHeight = 1;
     uint32_t mDepth = 1;
-
     InternalFormat mFormat = InternalFormat::RGBA8;
     Sampler mTarget = Sampler::SAMPLER_2D;
     uint8_t mLevelCount = 1;
     uint8_t mSampleCount = 1;
-
     std::array<Swizzle, 4> mSwizzle = {
            Swizzle::CHANNEL_0, Swizzle::CHANNEL_1,
            Swizzle::CHANNEL_2, Swizzle::CHANNEL_3 };
+    bool mTextureIsSwizzled;
 
     Usage mUsage = Usage::DEFAULT;
-    backend::TextureType mTextureType;
 
     // TODO: remove in a future filament release.
     // Indicates whether the user has set the TextureUsage::BLIT_SRC usage. This will be used to
     // temporarily validate whether this texture can be used for readPixels.
-    bool mHasBlitSrc        : 1;
-    bool mExternal          : 1;
-    bool mTextureIsSwizzled : 1;
+    bool mHasBlitSrc = false;
+    bool mExternal = false;
+    // there is 4 bytes of padding here
 
     FStream* mStream = nullptr; // only needed for streaming textures
 };

filament/src/details/View.cpp

@@ -68,36 +68,10 @@ FView::FView(FEngine& engine)
           mFogEntity(engine.getEntityManager().create()),
           mIsStereoSupported(engine.getDriverApi().isStereoSupported()),
           mUniforms(engine.getDriverApi()),
-          mColorPassDescriptorSet{
-                { engine, false, mUniforms },
-                { engine, true, mUniforms } }
-{
+          mColorPassDescriptorSet(engine, mUniforms) {
+
     DriverApi& driver = engine.getDriverApi();
 
-    auto const& layout = engine.getPerRenderableDescriptorSetLayout();
-
-    // initialize the common descriptor set with dummy descriptors
-    mCommonRenderableDescriptorSet.setBuffer(layout,
-            +PerRenderableBindingPoints::BONES_UNIFORMS,
-            engine.getDummyUniformBuffer(), 0, sizeof(PerRenderableBoneUib));
-
-    mCommonRenderableDescriptorSet.setBuffer(layout,
-            +PerRenderableBindingPoints::MORPHING_UNIFORMS,
-            engine.getDummyUniformBuffer(), 0, sizeof(PerRenderableMorphingUib));
-
-    mCommonRenderableDescriptorSet.setSampler(layout,
-            +PerRenderableBindingPoints::MORPH_TARGET_POSITIONS,
-            engine.getDummyMorphTargetBuffer()->getPositionsHandle(), {});
-
-    mCommonRenderableDescriptorSet.setSampler(layout,
-            +PerRenderableBindingPoints::MORPH_TARGET_TANGENTS,
-            engine.getDummyMorphTargetBuffer()->getTangentsHandle(), {});
-
-    mCommonRenderableDescriptorSet.setSampler(layout,
-            +PerRenderableBindingPoints::BONES_INDICES_AND_WEIGHTS,
-            engine.getZeroTextureArray(), {});
-
-
     FDebugRegistry& debugRegistry = engine.getDebugRegistry();
 
     debugRegistry.registerProperty("d.view.camera_at_origin",
@@ -151,13 +125,11 @@ FView::FView(FEngine& engine)
 
     mDefaultColorGrading = mColorGrading = engine.getDefaultColorGrading();
 
-    for (auto&& colorPassDescriptorSet : mColorPassDescriptorSet) {
-        colorPassDescriptorSet.init(
-                engine,
-                mLightUbh,
-                mFroxelizer.getRecordBuffer(),
-                mFroxelizer.getFroxelBuffer());
-    }
+    mColorPassDescriptorSet.init(
+            engine,
+            mLightUbh,
+            mFroxelizer.getRecordBuffer(),
+            mFroxelizer.getFroxelBuffer());
 }
 
 FView::~FView() noexcept = default;
@@ -174,9 +146,7 @@ void FView::terminate(FEngine& engine) {
 
     ShadowMapManager::terminate(engine, mShadowMapManager);
     mUniforms.terminate(driver);
-    for (auto&& colorPassDescriptorSet : mColorPassDescriptorSet) {
-        colorPassDescriptorSet.terminate(engine.getDescriptorSetLayoutFactory(), driver);
-    }
+    mColorPassDescriptorSet.terminate(engine.getDescriptorSetLayoutFactory(), driver);
     mFroxelizer.terminate(driver);
     mCommonRenderableDescriptorSet.terminate(driver);
 
@@ -459,7 +429,7 @@ void FView::prepareLighting(FEngine& engine, CameraInfo const& cameraInfo) noexc
      */
 
     const float exposure = Exposure::exposure(cameraInfo.ev100);
-    getColorPassDescriptorSet().prepareExposure(cameraInfo.ev100);
+    mColorPassDescriptorSet.prepareExposure(cameraInfo.ev100);
 
     /*
      * Indirect light (IBL)
@@ -476,7 +446,7 @@ void FView::prepareLighting(FEngine& engine, CameraInfo const& cameraInfo) noexc
         FSkybox const* const skybox = scene->getSkybox();
         intensity = skybox ? skybox->getIntensity() : FIndirectLight::DEFAULT_INTENSITY;
     }
-    getColorPassDescriptorSet().prepareAmbientLight(engine, *ibl, intensity, exposure);
+    mColorPassDescriptorSet.prepareAmbientLight(engine, *ibl, intensity, exposure);
 
     /*
      * Directional light (always at index 0)
@@ -484,7 +454,7 @@ void FView::prepareLighting(FEngine& engine, CameraInfo const& cameraInfo) noexc
 
     FLightManager::Instance const directionalLight = lightData.elementAt<FScene::LIGHT_INSTANCE>(0);
     const float3 sceneSpaceDirection = lightData.elementAt<FScene::DIRECTION>(0); // guaranteed normalized
-    getColorPassDescriptorSet().prepareDirectionalLight(engine, exposure, sceneSpaceDirection, directionalLight);
+    mColorPassDescriptorSet.prepareDirectionalLight(engine, exposure, sceneSpaceDirection, directionalLight);
 }
 
 CameraInfo FView::computeCameraInfo(FEngine& engine) const noexcept {
@@ -636,7 +606,7 @@ void FView::prepare(FEngine& engine, DriverApi& driver, RootArenaScope& rootAren
                     cameraInfo.projection, cameraInfo.zn, cameraInfo.zf)) {
                 // TODO: might be more consistent to do this in prepareLighting(), but it's not
                 //       strictly necessary
-                getColorPassDescriptorSet().prepareDynamicLights(mFroxelizer);
+                mColorPassDescriptorSet.prepareDynamicLights(mFroxelizer);
             }
             // We need to pass viewMatrix by value here because it extends the scope of this
             // function.
@@ -741,7 +711,6 @@ void FView::prepare(FEngine& engine, DriverApi& driver, RootArenaScope& rootAren
             scene->updateUBOs(merged, mRenderableUbh);
 
             mCommonRenderableDescriptorSet.setBuffer(
-                engine.getPerRenderableDescriptorSetLayout(),
                     +PerRenderableBindingPoints::OBJECT_UNIFORMS, mRenderableUbh,
                     0, sizeof(PerRenderableUib));
 
@@ -765,65 +734,37 @@ void FView::prepare(FEngine& engine, DriverApi& driver, RootArenaScope& rootAren
                 FRenderableManager& rcm = engine.getRenderableManager();
                 auto& descriptorSet = rcm.getDescriptorSet(ci);
 
-                auto const& layout = engine.getPerRenderableDescriptorSetLayout();
-
                 // initialize the descriptor set the first time it's needed
                 if (UTILS_UNLIKELY(!descriptorSet.getHandle())) {
-                    descriptorSet = DescriptorSet{ layout };
+                    descriptorSet = DescriptorSet{ engine.getPerRenderableDescriptorSetLayout() };
                 }
 
-                descriptorSet.setBuffer(layout,
-                        +PerRenderableBindingPoints::OBJECT_UNIFORMS,
+                descriptorSet.setBuffer(+PerRenderableBindingPoints::OBJECT_UNIFORMS,
                         instance.handle ? instance.handle : mRenderableUbh,
                         0, sizeof(PerRenderableUib));
 
-                descriptorSet.setBuffer(layout,
-                        +PerRenderableBindingPoints::BONES_UNIFORMS,
-                        engine.getDummyUniformBuffer(), 0, sizeof(PerRenderableBoneUib));
-
-                descriptorSet.setBuffer(layout,
-                        +PerRenderableBindingPoints::MORPHING_UNIFORMS,
-                        engine.getDummyUniformBuffer(), 0, sizeof(PerRenderableMorphingUib));
-
-                descriptorSet.setSampler(layout,
-                        +PerRenderableBindingPoints::MORPH_TARGET_POSITIONS,
-                        engine.getDummyMorphTargetBuffer()->getPositionsHandle(), {});
-
-                descriptorSet.setSampler(layout,
-                        +PerRenderableBindingPoints::MORPH_TARGET_TANGENTS,
-                        engine.getDummyMorphTargetBuffer()->getTangentsHandle(), {});
-
-                descriptorSet.setSampler(layout,
-                        +PerRenderableBindingPoints::BONES_INDICES_AND_WEIGHTS,
-                        engine.getZeroTextureArray(), {});
-
                 if (UTILS_UNLIKELY(skinning.handle || morphing.handle)) {
-                    descriptorSet.setBuffer(layout,
-                            +PerRenderableBindingPoints::BONES_UNIFORMS,
+
+                    descriptorSet.setBuffer(+PerRenderableBindingPoints::BONES_UNIFORMS,
                             skinning.handle, 0, sizeof(PerRenderableBoneUib));
 
-                    descriptorSet.setSampler(layout,
-                            +PerRenderableBindingPoints::BONES_INDICES_AND_WEIGHTS,
+                    descriptorSet.setSampler(+PerRenderableBindingPoints::BONES_INDICES_AND_WEIGHTS,
                             skinning.boneIndicesAndWeightHandle, {});
 
-                    descriptorSet.setBuffer(layout,
-                            +PerRenderableBindingPoints::MORPHING_UNIFORMS,
+                    descriptorSet.setBuffer(+PerRenderableBindingPoints::MORPHING_UNIFORMS,
                             morphing.handle, 0, sizeof(PerRenderableMorphingUib));
 
-                    descriptorSet.setSampler(layout,
-                            +PerRenderableBindingPoints::MORPH_TARGET_POSITIONS,
+                    descriptorSet.setSampler(+PerRenderableBindingPoints::MORPH_TARGET_POSITIONS,
                             morphing.morphTargetBuffer->getPositionsHandle(), {});
 
-                    descriptorSet.setSampler(layout,
-                            +PerRenderableBindingPoints::MORPH_TARGET_TANGENTS,
+                    descriptorSet.setSampler(+PerRenderableBindingPoints::MORPH_TARGET_TANGENTS,
                             morphing.morphTargetBuffer->getTangentsHandle(), {});
                 }
 
-                descriptorSet.commit(layout, driver);
+                descriptorSet.commit(engine.getPerRenderableDescriptorSetLayout(), driver);
 
                 // write the descriptor-set handle to the sceneData array for access later
-                sceneData.elementAt<FScene::DESCRIPTOR_SET_HANDLE>(i) =
-                        descriptorSet.getHandle();
+                sceneData.elementAt<FScene::DESCRIPTOR_SET_HANDLE>(i) = descriptorSet.getHandle();
             } else {
                 // use the shared descriptor-set
                 sceneData.elementAt<FScene::DESCRIPTOR_SET_HANDLE>(i) =
@@ -847,13 +788,12 @@ void FView::prepare(FEngine& engine, DriverApi& driver, RootArenaScope& rootAren
     auto const& tcm = engine.getTransformManager();
     auto const fogTransform = tcm.getWorldTransformAccurate(tcm.getInstance(mFogEntity));
 
-    auto& colorPassDescriptorSet = getColorPassDescriptorSet();
-    colorPassDescriptorSet.prepareTime(engine, userTime);
-    colorPassDescriptorSet.prepareFog(engine, cameraInfo, fogTransform, mFogOptions,
+    mColorPassDescriptorSet.prepareTime(engine, userTime);
+    mColorPassDescriptorSet.prepareFog(engine, cameraInfo, fogTransform, mFogOptions,
             scene->getIndirectLight());
-    colorPassDescriptorSet.prepareTemporalNoise(engine, mTemporalAntiAliasingOptions);
-    colorPassDescriptorSet.prepareBlending(needsAlphaChannel);
-    colorPassDescriptorSet.prepareMaterialGlobals(mMaterialGlobals);
+    mColorPassDescriptorSet.prepareTemporalNoise(engine, mTemporalAntiAliasingOptions);
+    mColorPassDescriptorSet.prepareBlending(needsAlphaChannel);
+    mColorPassDescriptorSet.prepareMaterialGlobals(mMaterialGlobals);
 }
 
 void FView::computeVisibilityMasks(
@@ -914,12 +854,12 @@ void FView::prepareUpscaler(float2 const scale,
             derivativesScale = 0.5f;
         }
     }
-    getColorPassDescriptorSet().prepareLodBias(bias, derivativesScale);
+    mColorPassDescriptorSet.prepareLodBias(bias, derivativesScale);
 }
 
 void FView::prepareCamera(FEngine& engine, const CameraInfo& cameraInfo) const noexcept {
     SYSTRACE_CALL();
-    getColorPassDescriptorSet().prepareCamera(engine, cameraInfo);
+    mColorPassDescriptorSet.prepareCamera(engine, cameraInfo);
 }
 
 void FView::prepareViewport(
@@ -928,23 +868,23 @@ void FView::prepareViewport(
     SYSTRACE_CALL();
     // TODO: we should pass viewport.{left|bottom} to the backend, so it can offset the
     //       scissor properly.
-    getColorPassDescriptorSet().prepareViewport(physicalViewport, logicalViewport);
+    mColorPassDescriptorSet.prepareViewport(physicalViewport, logicalViewport);
 }
 
 void FView::prepareSSAO(Handle<HwTexture> ssao) const noexcept {
-    getColorPassDescriptorSet().prepareSSAO(ssao, mAmbientOcclusionOptions);
+    mColorPassDescriptorSet.prepareSSAO(ssao, mAmbientOcclusionOptions);
 }
 
 void FView::prepareSSR(Handle<HwTexture> ssr,
         bool const disableSSR,
         float const refractionLodOffset,
         ScreenSpaceReflectionsOptions const& ssrOptions) const noexcept {
-    getColorPassDescriptorSet().prepareSSR(ssr, disableSSR, refractionLodOffset, ssrOptions);
+    mColorPassDescriptorSet.prepareSSR(ssr, disableSSR, refractionLodOffset, ssrOptions);
 }
 
 void FView::prepareStructure(Handle<HwTexture> structure) const noexcept {
     // sampler must be NEAREST
-    getColorPassDescriptorSet().prepareStructure(structure);
+    mColorPassDescriptorSet.prepareStructure(structure);
 }
 
 void FView::prepareShadow(Handle<HwTexture> texture) const noexcept {
@@ -956,38 +896,37 @@ void FView::prepareShadow(Handle<HwTexture> texture) const noexcept {
     }
     switch (mShadowType) {
         case ShadowType::PCF:
-            getColorPassDescriptorSet().prepareShadowPCF(texture, uniforms);
+            mColorPassDescriptorSet.prepareShadowPCF(texture, uniforms);
             break;
         case ShadowType::VSM:
-            getColorPassDescriptorSet().prepareShadowVSM(texture, uniforms, mVsmShadowOptions);
+            mColorPassDescriptorSet.prepareShadowVSM(texture, uniforms, mVsmShadowOptions);
             break;
         case ShadowType::DPCF:
-            getColorPassDescriptorSet().prepareShadowDPCF(texture, uniforms, mSoftShadowOptions);
+            mColorPassDescriptorSet.prepareShadowDPCF(texture, uniforms, mSoftShadowOptions);
             break;
         case ShadowType::PCSS:
-            getColorPassDescriptorSet().prepareShadowPCSS(texture, uniforms, mSoftShadowOptions);
+            mColorPassDescriptorSet.prepareShadowPCSS(texture, uniforms, mSoftShadowOptions);
             break;
         case ShadowType::PCFd:
-            getColorPassDescriptorSet().prepareShadowPCFDebug(texture, uniforms);
+            mColorPassDescriptorSet.prepareShadowPCFDebug(texture, uniforms);
             break;
     }
 }
 
-void FView::prepareShadowMapping(FEngine const& engine, bool const highPrecision) const noexcept {
-    BufferObjectHandle ubo{ engine.getDummyUniformBuffer() };
+void FView::prepareShadowMapping(bool const highPrecision) const noexcept {
     if (mHasShadowing) {
         assert_invariant(mShadowMapManager);
-        ubo = mShadowMapManager->getShadowUniformsHandle();
+        mColorPassDescriptorSet.prepareShadowMapping(
+                mShadowMapManager->getShadowUniformsHandle(), highPrecision);
     }
-    getColorPassDescriptorSet().prepareShadowMapping(ubo, highPrecision);
 }
 
 void FView::commitUniformsAndSamplers(DriverApi& driver) const noexcept {
-    getColorPassDescriptorSet().commit(driver);
+    mColorPassDescriptorSet.commit(driver);
 }
 
-void FView::unbindSamplers(FEngine& engine) noexcept {
-    getColorPassDescriptorSet().unbindSamplers(engine);
+void FView::unbindSamplers(DriverApi& driver) noexcept {
+    mColorPassDescriptorSet.unbindSamplers(driver);
 }
 
 void FView::commitFroxels(DriverApi& driverApi) const noexcept {

filament/src/details/View.h

@@ -178,11 +178,11 @@ public:
             ScreenSpaceReflectionsOptions const& ssrOptions) const noexcept;
     void prepareStructure(backend::Handle<backend::HwTexture> structure) const noexcept;
     void prepareShadow(backend::Handle<backend::HwTexture> structure) const noexcept;
-    void prepareShadowMapping(FEngine const& engine, bool highPrecision) const noexcept;
+    void prepareShadowMapping(bool highPrecision) const noexcept;
 
     void commitFroxels(backend::DriverApi& driverApi) const noexcept;
     void commitUniformsAndSamplers(backend::DriverApi& driver) const noexcept;
-    void unbindSamplers(FEngine& engine) noexcept;
+    void unbindSamplers(backend::DriverApi& driver) noexcept;
 
     utils::JobSystem::Job* getFroxelizerSync() const noexcept { return mFroxelizerSync; }
     void setFroxelizerSync(utils::JobSystem::Job* sync) noexcept { mFroxelizerSync = sync; }
@@ -440,9 +440,7 @@ public:
     static void cullRenderables(utils::JobSystem& js, FScene::RenderableSoa& renderableData,
             Frustum const& frustum, size_t bit) noexcept;
 
-    ColorPassDescriptorSet& getColorPassDescriptorSet() const noexcept {
-            return mColorPassDescriptorSet[mShadowType == ShadowType::PCF ? 0 : 1];
-    }
+    ColorPassDescriptorSet& getColorPassDescriptorSet() noexcept { return mColorPassDescriptorSet; }
 
     // Returns the frame history FIFO. This is typically used by the FrameGraph to access
     // previous frame data.
@@ -589,7 +587,7 @@ private:
     RenderQuality mRenderQuality;
 
     mutable TypedUniformBuffer<PerViewUib> mUniforms;
-    mutable ColorPassDescriptorSet mColorPassDescriptorSet[2];
+    mutable ColorPassDescriptorSet mColorPassDescriptorSet;
 
     mutable FrameHistory mFrameHistory{};
 

filament/src/ds/ColorPassDescriptorSet.cpp

@@ -79,7 +79,7 @@ uint8_t ColorPassDescriptorSet::getIndex(
         index |= 0x2;
     }
 
-    if (fog) {
+    if (!fog) {
         // this will remove samplers needed for fog
         index |= 0x4;
     }
@@ -88,18 +88,27 @@ uint8_t ColorPassDescriptorSet::getIndex(
     return index;
 }
 
-ColorPassDescriptorSet::ColorPassDescriptorSet(FEngine& engine, bool const vsm,
+
+ColorPassDescriptorSet::ColorPassDescriptorSet(FEngine& engine,
         TypedUniformBuffer<PerViewUib>& uniforms) noexcept
-    : mUniforms(uniforms), mIsVsm(vsm) {
+        : mUniforms(uniforms) {
+
+    constexpr UserVariantFilterMask filterFog = UserVariantFilterMask(UserVariantFilterBit::FOG);
+    constexpr UserVariantFilterMask keepFog = UserVariantFilterMask(0);
+
     for (bool const lit: { false, true }) {
         for (bool const ssr: { false, true }) {
             for (bool const fog: { false, true }) {
-                auto const index = getIndex(lit, ssr, fog);
+                auto index = getIndex(lit, ssr, fog);
                 mDescriptorSetLayout[index] = {
                         engine.getDescriptorSetLayoutFactory(),
                         engine.getDriverApi(),
                         descriptor_sets::getPerViewDescriptorSetLayout(
-                                MaterialDomain::SURFACE, lit, ssr, fog, vsm)
+                                MaterialDomain::SURFACE,
+                                fog ? keepFog : filterFog,
+                                lit,
+                                ssr ? ReflectionMode::SCREEN_SPACE : ReflectionMode::DEFAULT,
+                                ssr ? RefractionMode::SCREEN_SPACE : RefractionMode::NONE)
                 };
                 mDescriptorSet[index] = DescriptorSet{ mDescriptorSetLayout[index] };
             }
@@ -109,11 +118,11 @@ ColorPassDescriptorSet::ColorPassDescriptorSet(FEngine& engine, bool const vsm,
     setBuffer(+PerViewBindingPoints::FRAME_UNIFORMS,
             uniforms.getUboHandle(), 0, uniforms.getSize());
 
-    setSampler(+PerViewBindingPoints::IBL_DFG_LUT,
-            engine.getDFG().isValid() ?
-                    engine.getDFG().getTexture() : engine.getZeroTexture(), {
-                    .filterMag = SamplerMagFilter::LINEAR
-            });
+    if (engine.getDFG().isValid()) {
+        TextureSampler const sampler(TextureSampler::MagFilter::LINEAR);
+        setSampler(+PerViewBindingPoints::IBL_DFG_LUT,
+                engine.getDFG().getTexture(), sampler.getSamplerParams());
+    }
 }
 
 void ColorPassDescriptorSet::init(
@@ -121,14 +130,12 @@ void ColorPassDescriptorSet::init(
         BufferObjectHandle lights,
         BufferObjectHandle recordBuffer,
         BufferObjectHandle froxelBuffer) noexcept {
-    for (size_t i = 0; i < DESCRIPTOR_LAYOUT_COUNT; i++) {
-        auto& descriptorSet = mDescriptorSet[i];
-        auto const& layout = mDescriptorSetLayout[i];
-        descriptorSet.setBuffer(layout, +PerViewBindingPoints::LIGHTS,
+    for (auto&& descriptorSet: mDescriptorSet) {
+        descriptorSet.setBuffer(+PerViewBindingPoints::LIGHTS,
                 lights, 0, CONFIG_MAX_LIGHT_COUNT * sizeof(LightsUib));
-        descriptorSet.setBuffer(layout, +PerViewBindingPoints::RECORD_BUFFER,
+        descriptorSet.setBuffer(+PerViewBindingPoints::RECORD_BUFFER,
                 recordBuffer, 0, sizeof(FroxelRecordUib));
-        descriptorSet.setBuffer(layout, +PerViewBindingPoints::FROXEL_BUFFER,
+        descriptorSet.setBuffer(+PerViewBindingPoints::FROXEL_BUFFER,
                 froxelBuffer, 0, Froxelizer::getFroxelBufferByteCount(engine.getDriverApi()));
     }
 }
@@ -298,7 +305,6 @@ void ColorPassDescriptorSet::prepareFog(FEngine& engine, const CameraInfo& camer
 
 void ColorPassDescriptorSet::prepareSSAO(Handle<HwTexture> ssao,
         AmbientOcclusionOptions const& options) noexcept {
-
     // High quality sampling is enabled only if AO itself is enabled and upsampling quality is at
     // least set to high and of course only if upsampling is needed.
     const bool highQualitySampling = options.upsampling >= QualityLevel::HIGH
@@ -531,28 +537,20 @@ void ColorPassDescriptorSet::commit(DriverApi& driver) noexcept {
         driver.updateBufferObject(mUniforms.getUboHandle(),
                 mUniforms.toBufferDescriptor(driver), 0);
     }
-
-
     for (size_t i = 0; i < DESCRIPTOR_LAYOUT_COUNT; i++) {
         mDescriptorSet[i].commit(mDescriptorSetLayout[i], driver);
     }
 }
 
-void ColorPassDescriptorSet::unbindSamplers(FEngine& engine) noexcept {
+void ColorPassDescriptorSet::unbindSamplers(DriverApi&) noexcept {
     // this needs to reset the sampler that are only set in RendererUtils::colorPass(), because
     // this descriptor-set is also used for ssr/picking/structure and these could be stale
     // it would be better to use a separate descriptor-set for those two cases so that we don't
     // have to do this
-    setBuffer(+PerViewBindingPoints::SHADOWS,
-            engine.getDummyUniformBuffer(), 0, sizeof(ShadowUib));
-    setSampler(+PerViewBindingPoints::STRUCTURE,
-            engine.getZeroTexture(), {});
-    setSampler(+PerViewBindingPoints::SHADOW_MAP,
-            engine.getOneTextureArrayDepth(), {});
-    setSampler(+PerViewBindingPoints::SSAO,
-            engine.getZeroTextureArray(), {});
-    setSampler(+PerViewBindingPoints::SSR,
-            engine.getZeroTextureArray(), {});
+    setSampler(+PerViewBindingPoints::STRUCTURE, {}, {});
+    setSampler(+PerViewBindingPoints::SHADOW_MAP, {}, {});
+    setSampler(+PerViewBindingPoints::SSAO, {}, {});
+    setSampler(+PerViewBindingPoints::SSR, {}, {});
 }
 
 void ColorPassDescriptorSet::setSampler(descriptor_binding_t const binding,
@@ -560,7 +558,7 @@ void ColorPassDescriptorSet::setSampler(descriptor_binding_t const binding,
     for (size_t i = 0; i < DESCRIPTOR_LAYOUT_COUNT; i++) {
         auto samplers = mDescriptorSetLayout[i].getSamplerDescriptors();
         if (samplers[binding]) {
-            mDescriptorSet[i].setSampler(mDescriptorSetLayout[i], binding, th, params);
+            mDescriptorSet[i].setSampler(binding, th, params);
         }
     }
 }
@@ -568,10 +566,9 @@ void ColorPassDescriptorSet::setSampler(descriptor_binding_t const binding,
 void ColorPassDescriptorSet::setBuffer(descriptor_binding_t const binding,
         BufferObjectHandle boh, uint32_t const offset, uint32_t const size) noexcept {
     for (size_t i = 0; i < DESCRIPTOR_LAYOUT_COUNT; i++) {
-        auto const& layout = mDescriptorSetLayout[i];
-        auto ubos = layout.getUniformBufferDescriptors();
+        auto ubos = mDescriptorSetLayout[i].getUniformBufferDescriptors();
         if (ubos[binding]) {
-            mDescriptorSet[i].setBuffer(layout, binding, boh, offset, size);
+            mDescriptorSet[i].setBuffer(binding, boh, offset, size);
         }
     }
 }

filament/src/ds/ColorPassDescriptorSet.h

@@ -66,16 +66,16 @@ class ColorPassDescriptorSet {
     using LightManagerInstance = utils::EntityInstance<LightManager>;
     using TextureHandle = backend::Handle<backend::HwTexture>;
 
-    static constexpr uint32_t SHADOW_SAMPLING_RUNTIME_PCF   = 0u;
-    static constexpr uint32_t SHADOW_SAMPLING_RUNTIME_EVSM  = 1u;
-    static constexpr uint32_t SHADOW_SAMPLING_RUNTIME_DPCF  = 2u;
-    static constexpr uint32_t SHADOW_SAMPLING_RUNTIME_PCSS  = 3u;
+    static constexpr uint32_t const SHADOW_SAMPLING_RUNTIME_PCF   = 0u;
+    static constexpr uint32_t const SHADOW_SAMPLING_RUNTIME_EVSM  = 1u;
+    static constexpr uint32_t const SHADOW_SAMPLING_RUNTIME_DPCF  = 2u;
+    static constexpr uint32_t const SHADOW_SAMPLING_RUNTIME_PCSS  = 3u;
 
 public:
 
     static uint8_t getIndex(bool lit, bool ssr, bool fog)  noexcept;
 
-    ColorPassDescriptorSet(FEngine& engine, bool vsm,
+    ColorPassDescriptorSet(FEngine& engine,
             TypedUniformBuffer<PerViewUib>& uniforms) noexcept;
 
     void init(
@@ -153,15 +153,13 @@ public:
     // update local data into GPU UBO
     void commit(backend::DriverApi& driver) noexcept;
 
-    void unbindSamplers(FEngine& engine) noexcept;
+    void unbindSamplers(backend::DriverApi& driver) noexcept;
 
     // bind this UBO
     void bind(backend::DriverApi& driver, uint8_t const index) const noexcept {
         mDescriptorSet[index].bind(driver, DescriptorSetBindingPoints::PER_VIEW);
     }
 
-    bool isVSM() const noexcept { return mIsVsm; }
-
 private:
     static constexpr size_t DESCRIPTOR_LAYOUT_COUNT = 8;
 
@@ -171,13 +169,11 @@ private:
     void setBuffer(backend::descriptor_binding_t binding,
             backend::BufferObjectHandle boh, uint32_t offset, uint32_t size) noexcept;
 
-    static void prepareShadowSampling(PerViewUib& uniforms,
-            ShadowMappingUniforms const& shadowMappingUniforms) noexcept;
-
     TypedUniformBuffer<PerViewUib>& mUniforms;
     std::array<DescriptorSetLayout, DESCRIPTOR_LAYOUT_COUNT> mDescriptorSetLayout;
     std::array<DescriptorSet, DESCRIPTOR_LAYOUT_COUNT> mDescriptorSet;
-    bool const mIsVsm;
+    static void prepareShadowSampling(PerViewUib& uniforms,
+            ShadowMappingUniforms const& shadowMappingUniforms) noexcept;
 };
 
 } // namespace filament

filament/src/ds/DescriptorSet.cpp

@@ -28,7 +28,6 @@
 #include <utils/compiler.h>
 #include <utils/debug.h>
 #include <utils/Log.h>
-#include <utils/Panic.h>
 
 #include <utility>
 #include <limits>
@@ -87,7 +86,6 @@ void DescriptorSet::commitSlow(DescriptorSetLayout const& layout,
     mValid.forEachSetBit([&layout, &driver,
             dsh = mDescriptorSetHandle, descriptors = mDescriptors.data()]
             (backend::descriptor_binding_t const binding) {
-        assert_invariant(layout.isValid(binding));
         if (layout.isSampler(binding)) {
             driver.updateDescriptorSetTexture(dsh, binding,
                     descriptors[binding].texture.th,
@@ -115,7 +113,7 @@ void DescriptorSet::bind(FEngine::DriverApi& driver, DescriptorSetBindingPoints
     // within the renderpass. We have to comment the assert out since it crashed a client's debug
     // build.
     // assert_invariant(mDirty.none());
-    if (UTILS_VERY_UNLIKELY(mDirty.any() && !mSetAfterCommitWarning)) {
+    if (mDirty.any() && !mSetAfterCommitWarning) {
         mDirty.forEachSetBit([&](uint8_t const binding) {
             utils::slog.w << "Descriptor set (handle=" << mDescriptorSetHandle.getId()
                           << ") binding=" << (int) binding
@@ -126,109 +124,35 @@ void DescriptorSet::bind(FEngine::DriverApi& driver, DescriptorSetBindingPoints
     driver.bindDescriptorSet(mDescriptorSetHandle, +set, std::move(dynamicOffsets));
 }
 
-void DescriptorSet::setBuffer(DescriptorSetLayout const& layout,
+void DescriptorSet::setBuffer(
         backend::descriptor_binding_t const binding,
-        backend::Handle<backend::HwBufferObject> boh, uint32_t const offset, uint32_t const size) {
-
-    // Validate it's the right kind of descriptor
-    using DSLB = backend::DescriptorSetLayoutBinding;
-    FILAMENT_CHECK_PRECONDITION(DSLB::isBuffer(layout.getDescriptorType(binding)))
-            << "descriptor " << +binding << "is not a buffer";
-
+        backend::Handle<backend::HwBufferObject> boh, uint32_t const offset, uint32_t const size) noexcept {
+    // TODO: validate it's the right kind of descriptor
     if (mDescriptors[binding].buffer.boh != boh || mDescriptors[binding].buffer.size != size) {
         // we don't set the dirty bit if only offset changes
         mDirty.set(binding);
     }
     mDescriptors[binding].buffer = { boh, offset, size };
-    mValid.set(binding, bool(boh));
+    mValid.set(binding, (bool)boh);
 }
 
 void DescriptorSet::setSampler(
-        DescriptorSetLayout const& layout,
         backend::descriptor_binding_t const binding,
-        backend::Handle<backend::HwTexture> th, backend::SamplerParams const params) {
-
-    using namespace backend;
-    using DSLB = DescriptorSetLayoutBinding;
-
-    // Validate it's the right kind of descriptor
-    auto type = layout.getDescriptorType(binding);
-    FILAMENT_CHECK_PRECONDITION(DSLB::isSampler(type))
-            << "descriptor " << +binding << " is not a sampler";
-
-    FILAMENT_CHECK_PRECONDITION(
-            !(params.compareMode == SamplerCompareMode::COMPARE_TO_TEXTURE && !isDepthDescriptor(type)))
-            << "descriptor " << +binding
-            << " is not of type DEPTH, but sampler is in COMPARE_TO_TEXTURE mode";
-
-    FILAMENT_CHECK_PRECONDITION(
-            !(params.isFiltered() &&
-            isDepthDescriptor(type) &&
-            params.compareMode != SamplerCompareMode::COMPARE_TO_TEXTURE))
-            << "descriptor " << +binding
-            << " is of type filtered DEPTH, but sampler not in COMPARE_TO_TEXTURE mode";
-
+        backend::Handle<backend::HwTexture> th, backend::SamplerParams const params) noexcept {
+    // TODO: validate it's the right kind of descriptor
     if (mDescriptors[binding].texture.th != th || mDescriptors[binding].texture.params != params) {
         mDirty.set(binding);
     }
     mDescriptors[binding].texture = { th, params };
-    mValid.set(binding, bool(th));
+    mValid.set(binding, (bool)th);
 }
 
 DescriptorSet DescriptorSet::duplicate(DescriptorSetLayout const& layout) const noexcept {
     DescriptorSet set{layout};
     set.mDescriptors = mDescriptors; // Use the vector's assignment operator
-    set.mDirty = mValid | mDirty;    // Dirty all valid descriptors so they're updated during commit
+    set.mDirty = mDirty;
     set.mValid = mValid;
     return set;
 }
-bool DescriptorSet::isTextureCompatibleWithDescriptor(
-    backend::TextureType t, backend::DescriptorType d) noexcept {
-    using namespace backend;
-
-    switch (d) {
-        case DescriptorType::SAMPLER_2D_FLOAT:
-        case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-        case DescriptorType::SAMPLER_CUBE_FLOAT:
-        case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-        case DescriptorType::SAMPLER_3D_FLOAT:
-            // DEPTH_STENCIL is treated as accessing the depth component. OpenGL 4.3
-            // allows to specify which one, but not filament.
-            // Depth textures can be used as an unfiltered float sampler
-            return t == TextureType::FLOAT || t == TextureType::DEPTH || t == TextureType::DEPTH_STENCIL;
-
-        case DescriptorType::SAMPLER_2D_INT:
-        case DescriptorType::SAMPLER_2D_ARRAY_INT:
-        case DescriptorType::SAMPLER_CUBE_INT:
-        case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-        case DescriptorType::SAMPLER_3D_INT:
-            return t == TextureType::INT;
-
-        case DescriptorType::SAMPLER_2D_UINT:
-        case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-        case DescriptorType::SAMPLER_CUBE_UINT:
-        case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-        case DescriptorType::SAMPLER_3D_UINT:
-            return t == TextureType::UINT;
-
-        case DescriptorType::SAMPLER_2D_DEPTH:
-        case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-        case DescriptorType::SAMPLER_CUBE_DEPTH:
-        case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-            // DEPTH_STENCIL is treated as accessing the depth component. OpenGL 4.3
-            // allows to specify which one, but not filament.
-            return t == TextureType::DEPTH || t == TextureType::DEPTH_STENCIL;
-
-        case DescriptorType::SAMPLER_EXTERNAL:
-        case DescriptorType::UNIFORM_BUFFER:
-        case DescriptorType::SHADER_STORAGE_BUFFER:
-        case DescriptorType::INPUT_ATTACHMENT:
-            return false;
-    }
-
-    // should never happen
-    return false;
-}
-
 
 } // namespace filament

filament/src/ds/DescriptorSet.h

@@ -62,16 +62,14 @@ public:
             backend::DescriptorSetOffsetArray dynamicOffsets) const noexcept;
 
     // sets a ubo/ssbo descriptor
-    void setBuffer(DescriptorSetLayout const& layout,
-            backend::descriptor_binding_t binding,
+    void setBuffer(backend::descriptor_binding_t binding,
             backend::Handle<backend::HwBufferObject> boh,
-            uint32_t offset, uint32_t size);
+            uint32_t offset, uint32_t size) noexcept;
 
     // sets a sampler descriptor
-    void setSampler(DescriptorSetLayout const& layout,
-            backend::descriptor_binding_t binding,
+    void setSampler(backend::descriptor_binding_t binding,
             backend::Handle<backend::HwTexture> th,
-            backend::SamplerParams params);
+            backend::SamplerParams params) noexcept;
 
     // Used for duplicating material
     DescriptorSet duplicate(DescriptorSetLayout const& layout) const noexcept;
@@ -84,9 +82,6 @@ public:
         return mValid;
     }
 
-    static bool isTextureCompatibleWithDescriptor(
-        backend::TextureType t, backend::DescriptorType d) noexcept;
-
 private:
     struct Desc {
         Desc() noexcept { }

filament/src/ds/DescriptorSetLayout.cpp

@@ -20,9 +20,6 @@
 
 #include "details/Engine.h"
 
-#include <utils/debug.h>
-#include <utils/FixedCapacityVector.h>
-
 #include <backend/DriverEnums.h>
 
 #include <algorithm>
@@ -38,15 +35,11 @@ DescriptorSetLayout::DescriptorSetLayout(
         backend::DescriptorSetLayout descriptorSetLayout) noexcept  {
     for (auto&& desc : descriptorSetLayout.bindings) {
         mMaxDescriptorBinding = std::max(mMaxDescriptorBinding, desc.binding);
-        mSamplers.set(desc.binding, backend::DescriptorSetLayoutBinding::isSampler(desc.type));
-        mUniformBuffers.set(desc.binding, desc.type == backend::DescriptorType::UNIFORM_BUFFER);
-    }
-
-    assert_invariant(mMaxDescriptorBinding < utils::bitset64::BIT_COUNT);
-
-    mDescriptorTypes = utils::FixedCapacityVector<backend::DescriptorType>(mMaxDescriptorBinding + 1);
-    for (auto&& desc : descriptorSetLayout.bindings) {
-        mDescriptorTypes[desc.binding] = desc.type;
+        mSamplers.set(desc.binding,
+                desc.type == backend::DescriptorType::SAMPLER ||
+                desc.type == backend::DescriptorType::SAMPLER_EXTERNAL);
+        mUniformBuffers.set(desc.binding,
+                desc.type == backend::DescriptorType::UNIFORM_BUFFER);
     }
 
     mDescriptorSetLayoutHandle = factory.create(driver,

filament/src/ds/DescriptorSetLayout.h

@@ -23,7 +23,6 @@
 #include <backend/Handle.h>
 
 #include <utils/bitset.h>
-#include <utils/FixedCapacityVector.h>
 
 #include <stddef.h>
 #include <stdint.h>
@@ -57,10 +56,6 @@ public:
         return mMaxDescriptorBinding;
     }
 
-    bool isValid(backend::descriptor_binding_t const binding) const noexcept {
-        return mSamplers[binding] || mUniformBuffers[binding];
-    }
-
     bool isSampler(backend::descriptor_binding_t const binding) const noexcept {
         return mSamplers[binding];
     }
@@ -73,17 +68,11 @@ public:
         return mUniformBuffers;
     }
 
-    backend::DescriptorType getDescriptorType(
-        backend::descriptor_binding_t const binding) const noexcept {
-        return mDescriptorTypes[binding];
-    }
-
 private:
     backend::DescriptorSetLayoutHandle mDescriptorSetLayoutHandle;
     utils::bitset64 mSamplers;
     utils::bitset64 mUniformBuffers;
     uint8_t mMaxDescriptorBinding = 0;
-    utils::FixedCapacityVector<backend::DescriptorType> mDescriptorTypes;
 };
 
 

filament/src/ds/PostProcessDescriptorSet.cpp

@@ -53,8 +53,7 @@ void PostProcessDescriptorSet::terminate(HwDescriptorSetLayoutFactory& factory,
 void PostProcessDescriptorSet::setFrameUniforms(DriverApi& driver,
         TypedUniformBuffer<PerViewUib>& uniforms) noexcept {
     // initialize the descriptor-set
-    mDescriptorSet.setBuffer(mDescriptorSetLayout,
-            +PerViewBindingPoints::FRAME_UNIFORMS,
+    mDescriptorSet.setBuffer(+PerViewBindingPoints::FRAME_UNIFORMS,
             uniforms.getUboHandle(), 0, uniforms.getSize());
 
     mDescriptorSet.commit(mDescriptorSetLayout, driver);

filament/src/ds/ShadowMapDescriptorSet.cpp

@@ -46,8 +46,8 @@ ShadowMapDescriptorSet::ShadowMapDescriptorSet(FEngine& engine) noexcept {
     mDescriptorSet = DescriptorSet{ engine.getPerViewDescriptorSetLayoutDepthVariant() };
 
     // initialize the descriptor-set
-    mDescriptorSet.setBuffer(engine.getPerViewDescriptorSetLayoutDepthVariant(),
-            +PerViewBindingPoints::FRAME_UNIFORMS, mUniformBufferHandle, 0, sizeof(PerViewUib));
+    mDescriptorSet.setBuffer(+PerViewBindingPoints::FRAME_UNIFORMS,
+            mUniformBufferHandle, 0, sizeof(PerViewUib));
 }
 
 void ShadowMapDescriptorSet::terminate(DriverApi& driver) {

filament/src/ds/SsrPassDescriptorSet.cpp

@@ -53,32 +53,28 @@ void SsrPassDescriptorSet::terminate(DriverApi& driver) {
     driver.destroyBufferObject(mShadowUbh);
 }
 
-void SsrPassDescriptorSet::setFrameUniforms(FEngine const& engine,
-        TypedUniformBuffer<PerViewUib>& uniforms) noexcept {
+void SsrPassDescriptorSet::setFrameUniforms(TypedUniformBuffer<PerViewUib>& uniforms) noexcept {
     // initialize the descriptor-set
-    mDescriptorSet.setBuffer(engine.getPerViewDescriptorSetLayoutSsrVariant(),
-            +PerViewBindingPoints::FRAME_UNIFORMS,
+    mDescriptorSet.setBuffer(+PerViewBindingPoints::FRAME_UNIFORMS,
             uniforms.getUboHandle(), 0, uniforms.getSize());
 
     // This is actually not used for the SSR variants, but the descriptor-set layout needs
     // to have this UBO because the fragment shader used is the "generic" one. Both Metal
     // and GL would be okay without this, but Vulkan's validation layer would complain.
-    mDescriptorSet.setBuffer(engine.getPerViewDescriptorSetLayoutSsrVariant(),
-            +PerViewBindingPoints::SHADOWS, mShadowUbh, 0, sizeof(ShadowUib));
+    mDescriptorSet.setBuffer(+PerViewBindingPoints::SHADOWS, mShadowUbh, 0, sizeof(ShadowUib));
 
     mUniforms = std::addressof(uniforms);
 }
 
-void SsrPassDescriptorSet::prepareHistorySSR(FEngine const& engine, Handle<HwTexture> ssr,
+void SsrPassDescriptorSet::prepareHistorySSR(Handle<HwTexture> ssr,
         mat4f const& historyProjection,
         mat4f const& uvFromViewMatrix,
         ScreenSpaceReflectionsOptions const& ssrOptions) noexcept {
 
-    mDescriptorSet.setSampler(engine.getPerViewDescriptorSetLayoutSsrVariant(),
-            +PerViewBindingPoints::SSR, ssr, {
-                .filterMag = SamplerMagFilter::LINEAR,
-                .filterMin = SamplerMinFilter::LINEAR
-            });
+    mDescriptorSet.setSampler(+PerViewBindingPoints::SSR, ssr, {
+        .filterMag = SamplerMagFilter::LINEAR,
+        .filterMin = SamplerMinFilter::LINEAR
+    });
 
     assert_invariant(mUniforms);
     auto& s = mUniforms->edit();
@@ -90,11 +86,9 @@ void SsrPassDescriptorSet::prepareHistorySSR(FEngine const& engine, Handle<HwTex
     s.ssrStride = ssrOptions.stride;
 }
 
-void SsrPassDescriptorSet::prepareStructure(FEngine const& engine,
-        Handle<HwTexture> structure) noexcept {
+void SsrPassDescriptorSet::prepareStructure(Handle<HwTexture> structure) noexcept {
     // sampler must be NEAREST
-    mDescriptorSet.setSampler(engine.getPerViewDescriptorSetLayoutSsrVariant(),
-            +PerViewBindingPoints::STRUCTURE, structure, {});
+    mDescriptorSet.setSampler(+PerViewBindingPoints::STRUCTURE, structure, {});
 }
 
 void SsrPassDescriptorSet::commit(FEngine& engine) noexcept {

filament/src/ds/SsrPassDescriptorSet.h

@@ -47,11 +47,11 @@ public:
 
     void terminate(backend::DriverApi& driver);
 
-    void setFrameUniforms(FEngine const& engine, TypedUniformBuffer<PerViewUib>& uniforms) noexcept;
+    void setFrameUniforms(TypedUniformBuffer<PerViewUib>& uniforms) noexcept;
 
-    void prepareStructure(FEngine const& engine, TextureHandle structure) noexcept;
+    void prepareStructure(TextureHandle structure) noexcept;
 
-    void prepareHistorySSR(FEngine const& engine, TextureHandle ssr,
+    void prepareHistorySSR(TextureHandle ssr,
             math::mat4f const& historyProjection,
             math::mat4f const& uvFromViewMatrix,
             ScreenSpaceReflectionsOptions const& ssrOptions) noexcept;

ios/CocoaPods/Filament.podspec

@@ -1,12 +1,12 @@
 Pod::Spec.new do |spec|
   spec.name = "Filament"
-  spec.version = "1.59.5"
+  spec.version = "1.59.4"
   spec.license = { :type => "Apache 2.0", :file => "LICENSE" }
   spec.homepage = "https://google.github.io/filament"
   spec.authors = "Google LLC."
   spec.summary = "Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WASM/WebGL."
   spec.platform = :ios, "11.0"
-  spec.source = { :http => "https://github.com/google/filament/releases/download/v1.59.5/filament-v1.59.5-ios.tgz" }
+  spec.source = { :http => "https://github.com/google/filament/releases/download/v1.59.4/filament-v1.59.4-ios.tgz" }
 
   # Fix linking error with Xcode 12; we do not yet support the simulator on Apple silicon.
   spec.pod_target_xcconfig = {

ios/samples/README.md

@@ -102,8 +102,7 @@ project in Xcode to see changes take effect.
 
 ## Building iOS Samples with ASan / UBSan
 
-1. Turn on ASan / UBSan in Filament's top-level CMakeLists.txt by passing
-   `-DFILAMENT_ENABLE_ASAN_UBSAN=1` to trigger the following line:
+1. Turn on ASan / UBSan in Filament's top-level CMakeLists.txt by uncommenting the following line:
 
 ```
 set(EXTRA_SANITIZE_OPTIONS "-fsanitize=undefined -fsanitize=address")

libs/filabridge/include/filament/MaterialEnums.h

@@ -28,7 +28,7 @@
 namespace filament {
 
 // update this when a new version of filament wouldn't work with older materials
-static constexpr size_t MATERIAL_VERSION = 60;
+static constexpr size_t MATERIAL_VERSION = 59;
 
 /**
  * Supported shading models

libs/filabridge/include/private/filament/DescriptorSets.h

@@ -20,7 +20,6 @@
 #include <backend/DriverEnums.h>
 
 #include <private/filament/EngineEnums.h>
-#include <private/filament/Variant.h>
 
 #include <filament/MaterialEnums.h>
 
@@ -35,20 +34,15 @@ backend::DescriptorSetLayout const& getPerRenderableLayout() noexcept;
 
 backend::DescriptorSetLayout getPerViewDescriptorSetLayout(
         MaterialDomain domain,
-        bool isLit, bool isSSR, bool hasFog,
-        bool isVSM) noexcept;
-
-backend::DescriptorSetLayout getPerViewDescriptorSetLayoutWithVariant(
-        Variant variant,
-        MaterialDomain domain,
-        bool isLit, bool isSSR, bool hasFog) noexcept;
+        UserVariantFilterMask variantFilter,
+        bool isLit,
+        ReflectionMode reflectionMode,
+        RefractionMode refractionMode) noexcept;
 
 utils::CString getDescriptorName(
-        DescriptorSetBindingPoints set,
+        filament::DescriptorSetBindingPoints set,
         backend::descriptor_binding_t binding) noexcept;
 
-backend::DescriptorType getDescriptorType(backend::SamplerType type, backend::SamplerFormat format);
-
 } // namespace filament::descriptor_sets
 
 

libs/filabridge/include/private/filament/SamplerInterfaceBlock.h

@@ -23,8 +23,6 @@
 #include <utils/CString.h>
 #include <utils/FixedCapacityVector.h>
 
-#include <private/filament/DescriptorSets.h>
-
 #include <initializer_list>
 #include <unordered_map>
 #include <string_view>
@@ -130,9 +128,6 @@ public:
 
     static utils::CString generateUniformName(const char* group, const char* sampler) noexcept;
 
-    static SamplerInfoList filterSamplerList(SamplerInfoList list,
-            backend::DescriptorSetLayout const& descriptorSetLayout);
-
 private:
     friend class Builder;
 

libs/filabridge/src/DescriptorSets.cpp

@@ -17,151 +17,70 @@
 #include "private/filament/DescriptorSets.h"
 
 #include <private/filament/EngineEnums.h>
-#include <private/filament/Variant.h>
 
 #include <filament/MaterialEnums.h>
 
 #include <backend/DriverEnums.h>
 
 #include <utils/CString.h>
-#include <utils/Panic.h>
-#include <utils/StaticString.h>
 #include <utils/debug.h>
 
 #include <algorithm>
-#include <cstddef>
-#include <initializer_list>
-#include <string_view>
-#include <type_traits>
 #include <unordered_map>
-#include <utility>
+#include <string_view>
 
 namespace filament::descriptor_sets {
 
 using namespace backend;
 
-// used for post-processing passes
-static constexpr std::initializer_list<DescriptorSetLayoutBinding> postProcessDescriptorSetLayoutList = {
+static DescriptorSetLayout const postProcessDescriptorSetLayout{
+    utils::StaticString("postProcess"),{
     { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::FRAME_UNIFORMS },
-};
+}};
 
-// used to generate shadow-maps
-static constexpr std::initializer_list<DescriptorSetLayoutBinding> depthVariantDescriptorSetLayoutList = {
+static DescriptorSetLayout const depthVariantDescriptorSetLayout{
+    utils::StaticString("depthVariant"),{
     { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::FRAME_UNIFORMS },
-};
+}};
 
 // ssrVariantDescriptorSetLayout must match perViewDescriptorSetLayout's vertex stage. This is
 // because the SSR variant is always using the "standard" vertex shader (i.e. there is no
 // dedicated SSR vertex shader), which uses perViewDescriptorSetLayout.
 // This means that PerViewBindingPoints::SHADOWS must be in the layout even though it's not used
 // by the SSR variant.
-static constexpr std::initializer_list<DescriptorSetLayoutBinding> ssrVariantDescriptorSetLayoutList = {
-    { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::FRAME_UNIFORMS },
-    { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SHADOWS        },
-    { DescriptorType::SAMPLER_2D_FLOAT,                          ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::STRUCTURE      },
-    { DescriptorType::SAMPLER_2D_ARRAY_FLOAT,                    ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SSR            },
-};
+static DescriptorSetLayout const ssrVariantDescriptorSetLayout{
+    utils::StaticString("ssrVariant"),{
+   { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::FRAME_UNIFORMS },
+   { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SHADOWS        },
+   { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::STRUCTURE      },
+   { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SSR            },
+}};
 
-// Used for generating the color pass (i.e. the main pass). This is in fact a template that gets
-// declined into 8 different layouts, based on variants.
-//
-// Note about the SHADOW_MAP binding points:
-// This descriptor can either be a SAMPLER_FLOAT or a SAMPLER_DEPTH,
-// and there are 3 cases to consider:
-//
-//          | TextureType | CompareMode | Filtered | SamplerType | Variant |
-// ---------+-------------+-------------+----------+-------------+---------+
-//  PCF     |    DEPTH    |    COMPARE  |   Yes    |    DEPTH    |    -    |
-//  VSM     |    FLOAT    |     NONE    |   Yes    |    FLOAT    |   VSM   |
-//  OTHER   |    DEPTH    |     NONE    |   No     |    FLOAT    |   VSM   |
-//
-// The SamplerType to use depends on the Variant. Variant::VSM is set for all cases except PCM.
-//
-static constexpr std::initializer_list<DescriptorSetLayoutBinding> perViewDescriptorSetLayoutList = {
+static DescriptorSetLayout perViewDescriptorSetLayout = {
+    utils::StaticString("perView"),{
     { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::FRAME_UNIFORMS },
     { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SHADOWS        },
     { DescriptorType::UNIFORM_BUFFER,                            ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::LIGHTS         },
     { DescriptorType::UNIFORM_BUFFER,                            ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::RECORD_BUFFER  },
     { DescriptorType::UNIFORM_BUFFER,                            ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::FROXEL_BUFFER  },
-    { DescriptorType::SAMPLER_2D_FLOAT,                          ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::STRUCTURE      },
-    { DescriptorType::SAMPLER_2D_ARRAY_DEPTH,                    ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SHADOW_MAP     },
-    { DescriptorType::SAMPLER_2D_FLOAT,                          ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::IBL_DFG_LUT    },
-    { DescriptorType::SAMPLER_CUBE_FLOAT,                        ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::IBL_SPECULAR   },
-    { DescriptorType::SAMPLER_2D_ARRAY_FLOAT,                    ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SSAO           },
-    { DescriptorType::SAMPLER_2D_ARRAY_FLOAT,                    ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SSR            },
-    { DescriptorType::SAMPLER_CUBE_FLOAT,                        ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::FOG            },
-};
-
-static constexpr std::initializer_list<DescriptorSetLayoutBinding> perRenderableDescriptorSetLayoutList = {
-    { DescriptorType::UNIFORM_BUFFER,           ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerRenderableBindingPoints::OBJECT_UNIFORMS, DescriptorFlags::DYNAMIC_OFFSET },
-    { DescriptorType::UNIFORM_BUFFER,           ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerRenderableBindingPoints::BONES_UNIFORMS,  DescriptorFlags::DYNAMIC_OFFSET },
-    { DescriptorType::UNIFORM_BUFFER,           ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerRenderableBindingPoints::MORPHING_UNIFORMS         },
-    { DescriptorType::SAMPLER_2D_ARRAY_FLOAT,   ShaderStageFlags::VERTEX                             ,  +PerRenderableBindingPoints::MORPH_TARGET_POSITIONS    },
-    { DescriptorType::SAMPLER_2D_ARRAY_INT,     ShaderStageFlags::VERTEX                             ,  +PerRenderableBindingPoints::MORPH_TARGET_TANGENTS     },
-    { DescriptorType::SAMPLER_2D_ARRAY_FLOAT,   ShaderStageFlags::VERTEX                             ,  +PerRenderableBindingPoints::BONES_INDICES_AND_WEIGHTS },
-};
-
-struct PairSamplerTypeFormatHasher {
-    std::size_t operator()(const std::pair<SamplerType, SamplerFormat>& p) const {
-        using UnderlyingSamplerType = std::underlying_type_t<SamplerType>;
-        using UnderlyingSamplerFormat = std::underlying_type_t<SamplerFormat>;
-        std::size_t seed = 0;
-        std::size_t const hash1 = std::hash<UnderlyingSamplerType>{}(
-            static_cast<UnderlyingSamplerType>(p.first)
-        );
-        std::size_t const hash2 = std::hash<UnderlyingSamplerFormat>{}(
-            static_cast<UnderlyingSamplerFormat>(p.second)
-        );
-        seed ^= hash1 + 0x9e3779b9 + (seed << 6) + (seed >> 2);
-        seed ^= hash2 + 0x9e3779b9 + (seed << 6) + (seed >> 2);
-        return seed;
-    }
-};
-
-static const std::unordered_map<
-    std::pair<SamplerType, SamplerFormat>, DescriptorType, PairSamplerTypeFormatHasher> sDescriptorTypeMap{
-        {{ SamplerType::SAMPLER_2D, SamplerFormat::INT }, DescriptorType::SAMPLER_2D_INT },
-        {{ SamplerType::SAMPLER_2D, SamplerFormat::UINT }, DescriptorType::SAMPLER_2D_UINT },
-        {{ SamplerType::SAMPLER_2D, SamplerFormat::FLOAT }, DescriptorType::SAMPLER_2D_FLOAT },
-        {{ SamplerType::SAMPLER_2D, SamplerFormat::SHADOW }, DescriptorType::SAMPLER_2D_DEPTH },
-        {{ SamplerType::SAMPLER_2D_ARRAY, SamplerFormat::INT }, DescriptorType::SAMPLER_2D_ARRAY_INT },
-        {{ SamplerType::SAMPLER_2D_ARRAY, SamplerFormat::UINT }, DescriptorType::SAMPLER_2D_ARRAY_UINT },
-        {{ SamplerType::SAMPLER_2D_ARRAY, SamplerFormat::FLOAT }, DescriptorType::SAMPLER_2D_ARRAY_FLOAT },
-        {{ SamplerType::SAMPLER_2D_ARRAY, SamplerFormat::SHADOW }, DescriptorType::SAMPLER_2D_ARRAY_DEPTH },
-        {{ SamplerType::SAMPLER_CUBEMAP, SamplerFormat::INT }, DescriptorType::SAMPLER_CUBE_INT },
-        {{ SamplerType::SAMPLER_CUBEMAP, SamplerFormat::UINT }, DescriptorType::SAMPLER_CUBE_UINT },
-        {{ SamplerType::SAMPLER_CUBEMAP, SamplerFormat::FLOAT }, DescriptorType::SAMPLER_CUBE_FLOAT },
-        {{ SamplerType::SAMPLER_CUBEMAP, SamplerFormat::SHADOW }, DescriptorType::SAMPLER_CUBE_DEPTH },
-        {{ SamplerType::SAMPLER_CUBEMAP_ARRAY, SamplerFormat::INT }, DescriptorType::SAMPLER_CUBE_ARRAY_INT },
-        {{ SamplerType::SAMPLER_CUBEMAP_ARRAY, SamplerFormat::UINT }, DescriptorType::SAMPLER_CUBE_ARRAY_UINT },
-        {{ SamplerType::SAMPLER_CUBEMAP_ARRAY, SamplerFormat::FLOAT }, DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT },
-        {{ SamplerType::SAMPLER_CUBEMAP_ARRAY, SamplerFormat::SHADOW }, DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH },
-        {{ SamplerType::SAMPLER_3D, SamplerFormat::INT }, DescriptorType::SAMPLER_3D_INT },
-        {{ SamplerType::SAMPLER_3D, SamplerFormat::UINT }, DescriptorType::SAMPLER_3D_UINT },
-        {{ SamplerType::SAMPLER_3D, SamplerFormat::FLOAT }, DescriptorType::SAMPLER_3D_FLOAT },
-        {{ SamplerType::SAMPLER_EXTERNAL, SamplerFormat::FLOAT }, DescriptorType::SAMPLER_EXTERNAL }
-};
-
-// used for post-processing passes
-static DescriptorSetLayout const postProcessDescriptorSetLayout{ utils::StaticString("postProcess"),
-    postProcessDescriptorSetLayoutList };
-
-// used to generate shadow-maps
-static DescriptorSetLayout const depthVariantDescriptorSetLayout{
-    utils::StaticString("depthVariant"), depthVariantDescriptorSetLayoutList
-};
-
-static DescriptorSetLayout const ssrVariantDescriptorSetLayout{ utils::StaticString("ssrVariant"),
-    ssrVariantDescriptorSetLayoutList };
-
-// Used for generating the color pass (i.e. the main pass). This is in fact a template that gets
-// declined into 8 different layouts, based on variants.
-static DescriptorSetLayout perViewDescriptorSetLayout = { utils::StaticString("perView"),
-    perViewDescriptorSetLayoutList };
+    { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::STRUCTURE      },
+    { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SHADOW_MAP     },
+    { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::IBL_DFG_LUT    },
+    { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::IBL_SPECULAR   },
+    { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SSAO           },
+    { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::SSR            },
+    { DescriptorType::SAMPLER,                                   ShaderStageFlags::FRAGMENT,  +PerViewBindingPoints::FOG            },
+}};
 
 static DescriptorSetLayout perRenderableDescriptorSetLayout = {
-    utils::StaticString("perRenderable"), perRenderableDescriptorSetLayoutList
-};
+    utils::StaticString("perRenderable"),{
+    { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerRenderableBindingPoints::OBJECT_UNIFORMS, DescriptorFlags::DYNAMIC_OFFSET },
+    { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerRenderableBindingPoints::BONES_UNIFORMS,  DescriptorFlags::DYNAMIC_OFFSET },
+    { DescriptorType::UNIFORM_BUFFER, ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,  +PerRenderableBindingPoints::MORPHING_UNIFORMS         },
+    { DescriptorType::SAMPLER,        ShaderStageFlags::VERTEX                             ,  +PerRenderableBindingPoints::MORPH_TARGET_POSITIONS    },
+    { DescriptorType::SAMPLER,        ShaderStageFlags::VERTEX                             ,  +PerRenderableBindingPoints::MORPH_TARGET_TANGENTS     },
+    { DescriptorType::SAMPLER,        ShaderStageFlags::VERTEX                             ,  +PerRenderableBindingPoints::BONES_INDICES_AND_WEIGHTS },
+}};
 
 DescriptorSetLayout const& getPostProcessLayout() noexcept {
     return postProcessDescriptorSetLayout;
@@ -179,8 +98,8 @@ DescriptorSetLayout const& getPerRenderableLayout() noexcept {
     return perRenderableDescriptorSetLayout;
 }
 
-utils::CString getDescriptorName(DescriptorSetBindingPoints const set,
-        descriptor_binding_t const binding) noexcept {
+utils::CString getDescriptorName(DescriptorSetBindingPoints set,
+        descriptor_binding_t binding) noexcept {
     using namespace std::literals;
 
     static std::unordered_map<descriptor_binding_t, std::string_view> const set0{{
@@ -209,12 +128,12 @@ utils::CString getDescriptorName(DescriptorSetBindingPoints const set,
 
     switch (set) {
         case DescriptorSetBindingPoints::PER_VIEW: {
-            auto const pos = set0.find(binding);
+            auto pos = set0.find(binding);
             assert_invariant(pos != set0.end());
             return { pos->second.data(), pos->second.size() };
         }
         case DescriptorSetBindingPoints::PER_RENDERABLE: {
-            auto const pos = set1.find(binding);
+            auto pos = set1.find(binding);
             assert_invariant(pos != set1.end());
             return { pos->second.data(), pos->second.size() };
         }
@@ -223,13 +142,17 @@ utils::CString getDescriptorName(DescriptorSetBindingPoints const set,
             return "MaterialParams";
         }
     }
-    return "Unknown";
 }
 
 DescriptorSetLayout getPerViewDescriptorSetLayout(
-        MaterialDomain const domain,
-        bool const isLit, bool const isSSR, bool const hasFog,
-        bool const isVSM) noexcept {
+        MaterialDomain domain,
+        UserVariantFilterMask variantFilter,
+        bool isLit,
+        ReflectionMode reflectionMode,
+        RefractionMode refractionMode) noexcept {
+
+    bool const ssr = reflectionMode == ReflectionMode::SCREEN_SPACE ||
+                     refractionMode == RefractionMode::SCREEN_SPACE;
 
     switch (domain) {
         case MaterialDomain::SURFACE: {
@@ -248,7 +171,7 @@ DescriptorSetLayout getPerViewDescriptorSetLayout(
                         layout.bindings.end());
             }
             // remove descriptors not needed for SSRs
-            if (!isSSR) {
+            if (!ssr) {
                 layout.bindings.erase(
                         std::remove_if(layout.bindings.begin(), layout.bindings.end(),
                                 [](auto const& entry) {
@@ -258,7 +181,7 @@ DescriptorSetLayout getPerViewDescriptorSetLayout(
 
             }
             // remove fog descriptor if filtered out
-            if (!hasFog) {
+            if (variantFilter & (UserVariantFilterMask)UserVariantFilterBit::FOG) {
                 layout.bindings.erase(
                         std::remove_if(layout.bindings.begin(), layout.bindings.end(),
                                 [](auto const& entry) {
@@ -266,82 +189,14 @@ DescriptorSetLayout getPerViewDescriptorSetLayout(
                                 }),
                         layout.bindings.end());
             }
-
-            // change the SHADOW_MAP descriptor type for VSM
-            if (isVSM) {
-                auto const pos = std::find_if(layout.bindings.begin(), layout.bindings.end(),
-                        [](auto const& v) {
-                            return v.binding == PerViewBindingPoints::SHADOW_MAP;
-                        });
-                if (pos != layout.bindings.end()) {
-                    pos->type = DescriptorType::SAMPLER_2D_ARRAY_FLOAT;
-                }
-            }
             return layout;
         }
         case MaterialDomain::POST_PROCESS:
-            return postProcessDescriptorSetLayout;
+            return descriptor_sets::getPostProcessLayout();
         case MaterialDomain::COMPUTE:
             // TODO: what's the layout for compute?
-            return postProcessDescriptorSetLayout;
+            return descriptor_sets::getPostProcessLayout();
     }
 }
 
-DescriptorSetLayout getPerViewDescriptorSetLayoutWithVariant(
-        Variant const variant,
-        MaterialDomain const domain,
-        bool const isLit, bool const isSSR, bool const hasFog) noexcept {
-    if (Variant::isValidDepthVariant(variant)) {
-        return depthVariantDescriptorSetLayout;
-    }
-    if (Variant::isSSRVariant(variant)) {
-        return ssrVariantDescriptorSetLayout;
-    }
-    // We need to filter out all the descriptors not included in the "resolved" layout below
-    return getPerViewDescriptorSetLayout(domain, isLit, isSSR, hasFog,
-            Variant::isVSMVariant(variant));
-}
-
-DescriptorType getDescriptorType(SamplerType const type, SamplerFormat const format) {
-    auto const pos = sDescriptorTypeMap.find({ type, format });
-    FILAMENT_CHECK_PRECONDITION(pos != sDescriptorTypeMap.end())
-            << "Incompatible Sampler Format " << to_string(format)
-            << " and Type " << to_string(type);
-    return pos->second;
-}
-
-template<class ITERATOR, class PREDICATE>
-constexpr static ITERATOR find_if(ITERATOR first, ITERATOR last, PREDICATE pred) {
-    for (; first != last; ++first)
-        if (pred(*first)) break;
-    return first;
-}
-
-constexpr static bool checkConsistency() noexcept {
-    // check that all descriptors that apply to the vertex stage in perViewDescriptorSetLayout
-    // are present in ssrVariantDescriptorSetLayout; meaning that the latter is compatible
-    // with the former.
-    for (auto const& r: perViewDescriptorSetLayoutList) {
-        if (hasShaderType(r.stageFlags, ShaderStage::VERTEX)) {
-            auto const pos = find_if(
-                    ssrVariantDescriptorSetLayoutList.begin(),
-                    ssrVariantDescriptorSetLayoutList.end(),
-                    [r](auto const& l) {
-                        return l.count == r.count &&
-                               l.type == r.type &&
-                               l.binding == r.binding &&
-                               l.flags == r.flags &&
-                               l.stageFlags == r.stageFlags;
-                    });
-            if (pos == ssrVariantDescriptorSetLayoutList.end()) {
-                return false;
-            }
-        }
-    }
-    return true;
-}
-
-static_assert(checkConsistency(), "ssrVariantDescriptorSetLayout is not compatible with "
-        "perViewDescriptorSetLayout");
-
 } // namespace filament::descriptor_sets

libs/filabridge/src/SamplerInterfaceBlock.cpp

@@ -16,7 +16,6 @@
 
 #include "private/filament/SamplerInterfaceBlock.h"
 
-#include <private/filament/DescriptorSets.h>
 
 #include <backend/DriverEnums.h>
 
@@ -103,7 +102,7 @@ const SamplerInterfaceBlock::SamplerInfo* SamplerInterfaceBlock::getSamplerInfo(
     return &mSamplersInfoList[pos->second];
 }
 
-CString SamplerInterfaceBlock::generateUniformName(const char* group, const char* sampler) noexcept {
+utils::CString SamplerInterfaceBlock::generateUniformName(const char* group, const char* sampler) noexcept {
     char uniformName[256];
 
     // sampler interface block name
@@ -118,27 +117,9 @@ CString SamplerInterfaceBlock::generateUniformName(const char* group, const char
             std::min(sizeof(uniformName) / 2 - 2, strlen(sampler)),
             prefix + 1);
     *last++ = 0; // null terminator
-    assert_invariant(last <= std::end(uniformName));
+    assert(last <= std::end(uniformName));
 
     return CString{ uniformName, size_t(last - uniformName) - 1u };
 }
 
-SamplerInterfaceBlock::SamplerInfoList SamplerInterfaceBlock::filterSamplerList(
-        SamplerInfoList list, backend::DescriptorSetLayout const& descriptorSetLayout) {
-    // remove all the samplers that are not included in the descriptor-set layout
-    list.erase(
-            std::remove_if(list.begin(), list.end(),
-                    [&](auto const& entry) {
-                        auto pos = std::find_if(
-                                descriptorSetLayout.bindings.begin(),
-                                descriptorSetLayout.bindings.end(),
-                                [&entry](const auto& item) {
-                                    return item.binding == entry.binding;
-                                });
-                        return pos == descriptorSetLayout.bindings.end();
-                    }), list.end());
-
-    return list;
-}
-
 } // namespace filament

libs/filamat/include/filamat/MaterialBuilder.h

@@ -603,7 +603,7 @@ public:
      * extension will be derived from the shader stage. For example, mymaterial_0x0e.frag,
      * mymaterial_0x18.vert, etc.
      */
-    MaterialBuilder& saveRawVariants(bool saveRawVariants) noexcept;
+    MaterialBuilder& saveRawVariants(bool saveVariants) noexcept;
 
     //! If true, will include debugging information in generated SPIRV.
     MaterialBuilder& generateDebugInfo(bool generateDebugInfo) noexcept;
@@ -635,7 +635,7 @@ public:
      * Build the material. If you are using the Filament engine with this library, you should use
      * the job system provided by Engine.
      */
-    Package build(utils::JobSystem& jobSystem);
+    Package build(utils::JobSystem& jobSystem) noexcept;
 
 public:
     // The methods and types below are for internal use
@@ -809,7 +809,7 @@ private:
     // Multiple calls to findProperties accumulate the property sets across fragment
     // and vertex shaders in mProperties.
     bool findProperties(filament::backend::ShaderStage type,
-            MaterialBuilder::PropertyList const& allProperties,
+            MaterialBuilder::PropertyList& allProperties,
             CodeGenParams const& semanticCodeGenParams) noexcept;
 
     bool runSemanticAnalysis(MaterialInfo* inOutInfo,

libs/filamat/src/GLSLPostProcessor.cpp

@@ -23,6 +23,7 @@
 #include <spirv_glsl.hpp>
 #include <spirv_msl.hpp>
 
+#include "backend/DriverEnums.h"
 #include "private/filament/DescriptorSets.h"
 #include "sca/builtinResource.h"
 #include "sca/GLSLTools.h"
@@ -33,26 +34,16 @@
 
 #include "MetalArgumentBuffer.h"
 #include "SpirvFixup.h"
+#include "utils/ostream.h"
 
 #include <filament/MaterialEnums.h>
 
-#include <utils/compiler.h>
-#include <utils/debug.h>
 #include <utils/Log.h>
-#include <utils/ostream.h>
 
-#include <algorithm>
-#include <optional>
 #include <sstream>
-#include <string>
-#include <type_traits>
 #include <unordered_map>
-#include <utility>
 #include <vector>
 
-#include <stddef.h>
-#include <stdint.h>
-
 #ifdef FILAMENT_SUPPORTS_WEBGPU
 #include <tint/tint.h>
 #endif
@@ -75,7 +66,22 @@ using BindingIndexMap = std::unordered_map<std::string, uint16_t>;
 #define DEBUG_LOG_DESCRIPTOR_SETS 0
 #endif
 
-static const char* toString(ShaderStageFlags const flags) {
+const char* toString(DescriptorType type) {
+    switch (type) {
+        case DescriptorType::UNIFORM_BUFFER:
+            return "UNIFORM_BUFFER";
+        case DescriptorType::SHADER_STORAGE_BUFFER:
+            return "SHADER_STORAGE_BUFFER";
+        case DescriptorType::SAMPLER:
+            return "SAMPLER";
+        case DescriptorType::INPUT_ATTACHMENT:
+            return "INPUT_ATTACHMENT";
+        case DescriptorType::SAMPLER_EXTERNAL:
+            return "SAMPLER_EXTERNAL";
+    }
+}
+
+const char* toString(ShaderStageFlags flags) {
     std::vector<const char*> stages;
     if (any(flags & ShaderStageFlags::VERTEX)) {
         stages.push_back("VERTEX");
@@ -100,14 +106,14 @@ static const char* toString(ShaderStageFlags const flags) {
     return buffer;
 }
 
-static const char* prettyDescriptorFlags(DescriptorFlags const flags) {
+const char* prettyDescriptorFlags(DescriptorFlags flags) {
     if (flags == DescriptorFlags::DYNAMIC_OFFSET) {
         return "DYNAMIC_OFFSET";
     }
     return "NONE";
 }
 
-static const char* prettyPrintSamplerType(SamplerType const type) {
+const char* prettyPrintSamplerType(SamplerType type) {
     switch (type) {
         case SamplerType::SAMPLER_2D:
             return "SAMPLER_2D";
@@ -134,37 +140,35 @@ DescriptorSetLayout getPerMaterialDescriptorSet(SamplerInterfaceBlock const& sib
             ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,
             +PerMaterialBindingPoints::MATERIAL_PARAMS, DescriptorFlags::NONE, 0 });
 
-    for (auto const& sampler: samplers) {
-        DescriptorSetLayoutBinding layoutBinding{
-            DescriptorType::SAMPLER_EXTERNAL,
-            ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT,
-            sampler.binding,
-            DescriptorFlags::NONE,
-            0
-        };
-        if (sampler.type != SamplerInterfaceBlock::Type::SAMPLER_EXTERNAL) {
-            layoutBinding.type = descriptor_sets::getDescriptorType(sampler.type, sampler.format);
-        }
-        layout.bindings.push_back(layoutBinding);
+    for (auto const& sampler : samplers) {
+        layout.bindings.push_back(DescriptorSetLayoutBinding {
+                (sampler.type == SamplerInterfaceBlock::Type::SAMPLER_EXTERNAL) ?
+                        DescriptorType::SAMPLER_EXTERNAL : DescriptorType::SAMPLER,
+                ShaderStageFlags::VERTEX | ShaderStageFlags::FRAGMENT, sampler.binding,
+                DescriptorFlags::NONE, 0 });
     }
 
     return layout;
 }
 
-static void collectDescriptorsForSet(DescriptorSetBindingPoints set,
+static void collectDescriptorsForSet(filament::DescriptorSetBindingPoints set,
         const GLSLPostProcessor::Config& config, DescriptorSetInfo& descriptors) {
     const MaterialInfo& material = *config.materialInfo;
 
-    // get the descriptor set layout for the given pinding point
-    DescriptorSetLayout const descriptorSetLayout = [&] {
+    DescriptorSetLayout const info = [&]() {
         switch (set) {
             case DescriptorSetBindingPoints::PER_VIEW: {
-                bool const isLit = material.isLit || material.hasShadowMultiplier;
-                bool const isSSR = material.reflectionMode == ReflectionMode::SCREEN_SPACE ||
-                        material.refractionMode == RefractionMode::SCREEN_SPACE;
-                bool const hasFog = !(config.variantFilter & UserVariantFilterMask(UserVariantFilterBit::FOG));
-                return descriptor_sets::getPerViewDescriptorSetLayoutWithVariant(
-                        config.variant, config.domain, isLit, isSSR, hasFog);
+                if (filament::Variant::isValidDepthVariant(config.variant)) {
+                    return descriptor_sets::getDepthVariantLayout();
+                }
+                if (filament::Variant::isSSRVariant(config.variant)) {
+                    return descriptor_sets::getSsrVariantLayout();
+                }
+                return descriptor_sets::getPerViewDescriptorSetLayout(config.domain,
+                        config.variantFilter,
+                        material.isLit || material.hasShadowMultiplier,
+                        material.reflectionMode,
+                        material.refractionMode);
             }
             case DescriptorSetBindingPoints::PER_RENDERABLE:
                 return descriptor_sets::getPerRenderableLayout();
@@ -175,8 +179,7 @@ static void collectDescriptorsForSet(DescriptorSetBindingPoints set,
         }
     }();
 
-    // get the sampler list for this binding point
-    auto samplerList = [&] {
+    auto samplerList = [&]() {
         switch (set) {
             case DescriptorSetBindingPoints::PER_VIEW:
                 return SibGenerator::getPerViewSib(config.variant).getSamplerInfoList();
@@ -189,33 +192,42 @@ static void collectDescriptorsForSet(DescriptorSetBindingPoints set,
         }
     }();
 
-    // filter the list with the descriptor set layout
-    auto const descriptorSetSamplerList =
-            SamplerInterfaceBlock::filterSamplerList(std::move(samplerList), descriptorSetLayout);
+    // remove all the samplers that are not included in the descriptor-set layout
+    samplerList.erase(std::remove_if(samplerList.begin(), samplerList.end(),
+                              [&info](auto const& entry) {
+                                  auto pos = std::find_if(info.bindings.begin(),
+                                          info.bindings.end(), [&entry](const auto& item) {
+                                              return item.binding == entry.binding;
+                                          });
+                                  return pos == info.bindings.end();
+                              }),
+            samplerList.end());
 
-    // helper to get the name of a descriptor for this set, given a binding.
-    auto getDescriptorName = [set, &descriptorSetSamplerList](descriptor_binding_t binding) {
+    auto getDescriptorName = [&](DescriptorSetBindingPoints set, descriptor_binding_t binding) {
         if (set == DescriptorSetBindingPoints::PER_MATERIAL) {
-            auto pos = std::find_if(descriptorSetSamplerList.begin(), descriptorSetSamplerList.end(),
+            auto pos = std::find_if(samplerList.begin(), samplerList.end(),
                     [&](const auto& entry) { return entry.binding == binding; });
-            if (pos == descriptorSetSamplerList.end()) {
+            if (pos == samplerList.end()) {
                 return descriptor_sets::getDescriptorName(set, binding);
             }
-            return pos->uniformName;
+            SamplerInterfaceBlock::SamplerInfo& sampler = *pos;
+            return sampler.uniformName;
         }
         return descriptor_sets::getDescriptorName(set, binding);
     };
 
-    for (auto const& layoutBinding : descriptorSetLayout.bindings) {
-        descriptor_binding_t binding = layoutBinding.binding;
-        auto name = getDescriptorName(binding);
-        if (DescriptorSetLayoutBinding::isSampler(layoutBinding.type)) {
-            auto const pos = std::find_if(descriptorSetSamplerList.begin(), descriptorSetSamplerList.end(),
+    for (size_t i = 0; i < info.bindings.size(); i++) {
+        backend::descriptor_binding_t binding = info.bindings[i].binding;
+        auto name = getDescriptorName(set, binding);
+        if (info.bindings[i].type == DescriptorType::SAMPLER ||
+            info.bindings[i].type == DescriptorType::SAMPLER_EXTERNAL) {
+            auto pos = std::find_if(samplerList.begin(), samplerList.end(),
                     [&](const auto& entry) { return entry.binding == binding; });
-            assert_invariant(pos != descriptorSetSamplerList.end());
-            descriptors.emplace_back(name, layoutBinding, *pos);
+            assert_invariant(pos != samplerList.end());
+            SamplerInterfaceBlock::SamplerInfo& sampler = *pos;
+            descriptors.emplace_back(name, info.bindings[i], sampler);
         } else {
-            descriptors.emplace_back(name, layoutBinding, std::nullopt);
+            descriptors.emplace_back(name, info.bindings[i], std::nullopt);
         }
     }
 
@@ -224,8 +236,8 @@ static void collectDescriptorsForSet(DescriptorSetBindingPoints set,
     });
 }
 
-static void prettyPrintDescriptorSetInfoVector(DescriptorSets const& sets) noexcept {
-    auto getName = [](uint8_t const set) {
+void prettyPrintDescriptorSetInfoVector(DescriptorSets const& sets) {
+    auto getName = [](uint8_t set) {
         switch (set) {
             case +DescriptorSetBindingPoints::PER_VIEW:
                 return "perViewDescriptorSetLayout";
@@ -242,23 +254,18 @@ static void prettyPrintDescriptorSetInfoVector(DescriptorSets const& sets) noexc
         printf("[DS] info (%s) = [\n", getName(setIndex));
         for (auto const& descriptor : descriptors) {
             auto const& [name, info, sampler] = descriptor;
-        if (DescriptorSetLayoutBinding::isSampler(info.type)) {
+            if (info.type == DescriptorType::SAMPLER ||
+                info.type == DescriptorType::SAMPLER_EXTERNAL) {
                 assert_invariant(sampler.has_value());
-                printf("    {name = %s, binding = %d, type = %.*s, count = %d, stage = %s, flags = "
+                printf("    {name = %s, binding = %d, type = %s, count = %d, stage = %s, flags = "
                        "%s, samplerType = %s}",
-                        name.c_str_safe(), info.binding,
-                        int(to_string(info.type).size()),
-                        to_string(info.type).data(),
-                        info.count,
+                        name.c_str_safe(), info.binding, toString(info.type), info.count,
                         toString(info.stageFlags), prettyDescriptorFlags(info.flags),
                         prettyPrintSamplerType(sampler->type));
             } else {
-                printf("    {name = %s, binding = %d, type = %.*s, count = %d, stage = %s, flags = "
+                printf("    {name = %s, binding = %d, type = %s, count = %d, stage = %s, flags = "
                        "%s}",
-                        name.c_str_safe(), info.binding,
-                        int(to_string(info.type).size()),
-                        to_string(info.type).data(),
-                        info.count,
+                        name.c_str_safe(), info.binding, toString(info.type), info.count,
                         toString(info.stageFlags), prettyDescriptorFlags(info.flags));
             }
             printf(",\n");
@@ -358,7 +365,7 @@ static std::string stringifySpvOptimizerMessage(spv_message_level_t level, const
 }
 
 void GLSLPostProcessor::spirvToMsl(const SpirvBlob* spirv, std::string* outMsl,
-        ShaderStage stage, ShaderModel shaderModel,
+        filament::backend::ShaderStage stage, filament::backend::ShaderModel shaderModel,
         bool useFramebufferFetch, const DescriptorSets& descriptorSets,
         const ShaderMinifier* minifier) {
     using namespace msl;
@@ -472,25 +479,7 @@ void GLSLPostProcessor::spirvToMsl(const SpirvBlob* spirv, std::string* outMsl,
                     break;
                 }
 
-                case DescriptorType::SAMPLER_2D_FLOAT:
-                case DescriptorType::SAMPLER_2D_INT:
-                case DescriptorType::SAMPLER_2D_UINT:
-                case DescriptorType::SAMPLER_2D_DEPTH:
-                case DescriptorType::SAMPLER_2D_ARRAY_FLOAT:
-                case DescriptorType::SAMPLER_2D_ARRAY_INT:
-                case DescriptorType::SAMPLER_2D_ARRAY_UINT:
-                case DescriptorType::SAMPLER_2D_ARRAY_DEPTH:
-                case DescriptorType::SAMPLER_CUBE_FLOAT:
-                case DescriptorType::SAMPLER_CUBE_INT:
-                case DescriptorType::SAMPLER_CUBE_UINT:
-                case DescriptorType::SAMPLER_CUBE_DEPTH:
-                case DescriptorType::SAMPLER_CUBE_ARRAY_FLOAT:
-                case DescriptorType::SAMPLER_CUBE_ARRAY_INT:
-                case DescriptorType::SAMPLER_CUBE_ARRAY_UINT:
-                case DescriptorType::SAMPLER_CUBE_ARRAY_DEPTH:
-                case DescriptorType::SAMPLER_3D_FLOAT:
-                case DescriptorType::SAMPLER_3D_INT:
-                case DescriptorType::SAMPLER_3D_UINT:
+                case DescriptorType::SAMPLER:
                 case DescriptorType::SAMPLER_EXTERNAL: {
                     assert_invariant(sampler.has_value());
                     const std::string samplerName = std::string(name.c_str()) + "Smplr";
@@ -586,7 +575,7 @@ bool GLSLPostProcessor::spirvToWgsl(SpirvBlob *spirv, std::string *outWsl) {
     //After splitting the image samplers, we need to remap the bindings to separate them.
     rebindImageSamplerForWGSL(*spirv);
 
-    //Allow non-uniform derivatives due to our nested shaders. See https://github.com/gpuweb/gpuweb/issues/3479
+    //Allow non-uniform derivitives due to our nested shaders. See https://github.com/gpuweb/gpuweb/issues/3479
     const tint::spirv::reader::Options readerOpts{true};
     tint::wgsl::writer::Options writerOpts{};
 
@@ -625,9 +614,7 @@ bool GLSLPostProcessor::spirvToWgsl(SpirvBlob *spirv, std::string *outWsl) {
     *outWsl = wgslOut->wgsl;
     return true;
 #else
-    slog.i << "Trying to emit WGSL without including WebGPU dependencies,"
-            " please set CMake arg FILAMENT_SUPPORTS_WEBGPU and FILAMENT_SUPPORTS_WEBGPU"
-            << io::endl;
+    slog.i << "Trying to emit WGSL without including WebGPU dependencies, please set CMake arg FILAMENT_SUPPORTS_WEBGPU and FILAMENT_SUPPORTS_WEBGPU" << io::endl;
     return false;
 #endif
 
@@ -687,7 +674,7 @@ bool GLSLPostProcessor::process(const std::string& inputShader, Config const& co
         //        SpvRules should be enough.
         //        I think this could cause the compilation to fail on gl_VertexID.
         using Type = std::underlying_type_t<EShMessages>;
-        msg = EShMessages(Type(msg) | Type(EShMsgVulkanRules));
+        msg = EShMessages(Type(msg) | Type(EShMessages::EShMsgVulkanRules));
     }
 
     bool const ok = tShader.parse(&DefaultTBuiltInResource, internalConfig.langVersion, false, msg);
@@ -697,7 +684,7 @@ bool GLSLPostProcessor::process(const std::string& inputShader, Config const& co
     }
 
     // add texture lod bias
-    if (config.shaderType == ShaderStage::FRAGMENT &&
+    if (config.shaderType == backend::ShaderStage::FRAGMENT &&
         config.domain == MaterialDomain::SURFACE) {
         GLSLTools::textureLodBias(tShader);
     }
@@ -773,8 +760,8 @@ bool GLSLPostProcessor::process(const std::string& inputShader, Config const& co
     return true;
 }
 
-bool GLSLPostProcessor::preprocessOptimization(TShader& tShader,
-        Config const& config, InternalConfig& internalConfig) const {
+bool GLSLPostProcessor::preprocessOptimization(glslang::TShader& tShader,
+        GLSLPostProcessor::Config const& config, InternalConfig& internalConfig) const {
     using TargetApi = MaterialBuilder::TargetApi;
     assert_invariant(bool(internalConfig.spirvOutput) == (config.targetApi != TargetApi::OPENGL));
 
@@ -845,7 +832,7 @@ bool GLSLPostProcessor::preprocessOptimization(TShader& tShader,
 }
 
 bool GLSLPostProcessor::fullOptimization(const TShader& tShader,
-        Config const& config, InternalConfig& internalConfig) const {
+        GLSLPostProcessor::Config const& config, InternalConfig& internalConfig) const {
     SpirvBlob spirv;
 
     bool const optimizeForSize = mOptimization == MaterialBuilderBase::Optimization::SIZE;
@@ -941,7 +928,7 @@ bool GLSLPostProcessor::fullOptimization(const TShader& tShader,
 #else
         try {
             *internalConfig.glslOutput = glslCompiler.compile();
-        } catch (CompilerError e) {
+        } catch (spirv_cross::CompilerError e) {
             slog.e << "ERROR: " << e.what() << io::endl;
             return false;
         }
@@ -961,8 +948,8 @@ bool GLSLPostProcessor::fullOptimization(const TShader& tShader,
     return true;
 }
 
-std::shared_ptr<Optimizer> GLSLPostProcessor::createEmptyOptimizer() {
-    auto optimizer = std::make_shared<Optimizer>(SPV_ENV_UNIVERSAL_1_3);
+std::shared_ptr<spvtools::Optimizer> GLSLPostProcessor::createEmptyOptimizer() {
+    auto optimizer = std::make_shared<spvtools::Optimizer>(SPV_ENV_UNIVERSAL_1_3);
     optimizer->SetMessageConsumer([](spv_message_level_t level,
             const char* source, const spv_position_t& position, const char* message) {
         if (!filterSpvOptimizerMessage(level)) {
@@ -974,7 +961,7 @@ std::shared_ptr<Optimizer> GLSLPostProcessor::createEmptyOptimizer() {
     return optimizer;
 }
 
-std::shared_ptr<Optimizer> GLSLPostProcessor::createOptimizer(
+std::shared_ptr<spvtools::Optimizer> GLSLPostProcessor::createOptimizer(
         MaterialBuilder::Optimization optimization, Config const& config) {
     auto optimizer = createEmptyOptimizer();
 
@@ -1013,7 +1000,7 @@ void GLSLPostProcessor::optimizeSpirv(OptimizerPtr optimizer, SpirvBlob& spirv)
 }
 
 void GLSLPostProcessor::fixupClipDistance(
-        SpirvBlob& spirv, Config const& config) const {
+        SpirvBlob& spirv, GLSLPostProcessor::Config const& config) const {
     if (!config.usesClipDistance) {
         return;
     }
@@ -1053,7 +1040,7 @@ void GLSLPostProcessor::fixupClipDistance(
 
 
 void GLSLPostProcessor::registerPerformancePasses(Optimizer& optimizer, Config const& config) {
-    auto RegisterPass = [&](Optimizer::PassToken&& pass,
+    auto RegisterPass = [&](spvtools::Optimizer::PassToken&& pass,
             MaterialBuilder::TargetApi apiFilter = MaterialBuilder::TargetApi::ALL) {
         if (!(config.targetApi & apiFilter)) {
             return;
@@ -1098,7 +1085,7 @@ void GLSLPostProcessor::registerPerformancePasses(Optimizer& optimizer, Config c
 }
 
 void GLSLPostProcessor::registerSizePasses(Optimizer& optimizer, Config const& config) {
-    auto RegisterPass = [&](Optimizer::PassToken&& pass,
+    auto RegisterPass = [&](spvtools::Optimizer::PassToken&& pass,
             MaterialBuilder::TargetApi apiFilter = MaterialBuilder::TargetApi::ALL) {
         if (!(config.targetApi & apiFilter)) {
             return;

libs/filamat/src/MaterialVariants.cpp

@@ -16,6 +16,8 @@
 
 #include "MaterialVariants.h"
 
+#include "shaders/ShaderGenerator.h"
+
 #include <private/filament/EngineEnums.h>
 #include <private/filament/Variant.h>
 
@@ -23,8 +25,16 @@
 
 #include <filament/MaterialEnums.h>
 
+#include <utils/compiler.h>
+#include <utils/Panic.h>
+#include <utils/Log.h>
+
+#include <algorithm>
 #include <vector>
 
+#include <stddef.h>
+#include <stdint.h>
+
 namespace filamat {
 
 std::vector<Variant> determineSurfaceVariants(
@@ -52,6 +62,58 @@ std::vector<Variant> determineSurfaceVariants(
         if (fragmentVariant == variant) {
             variants.emplace_back(variant, filament::backend::ShaderStage::FRAGMENT);
         }
+
+        // Here we make sure that the combination of vertex and fragment variants have compatible
+        // PER_VIEW descriptor-set layouts. This could actually be a static/compile-time check
+        // because it is entirely decided in DescriptorSets.cpp. Unfortunately it's not possible
+        // to write this entirely as a constexpr.
+
+        if (UTILS_UNLIKELY(vertexVariant != fragmentVariant)) {
+            // fragment and vertex variants are different, we need to check the layouts are
+            // compatible.
+            using filament::ReflectionMode;
+            using filament::RefractionMode;
+            using filament::backend::ShaderStage;
+
+            // And we need to do that for all configurations of the "PER_VIEW" descriptor set
+            // layouts (there are eight).
+            // See ShaderGenerator::getPerViewDescriptorSetLayoutWithVariant.
+            for (auto reflection: {
+                    ReflectionMode::SCREEN_SPACE,
+                    ReflectionMode::DEFAULT }) {
+                for (auto refraction: {
+                        RefractionMode::SCREEN_SPACE,
+                        RefractionMode::CUBEMAP,
+                        RefractionMode::NONE }) {
+                    auto const vdsl = ShaderGenerator::getPerViewDescriptorSetLayoutWithVariant(
+                            vertexVariant, userVariantFilter, isLit || shadowMultiplier,
+                            reflection, refraction);
+                    auto const fdsl = ShaderGenerator::getPerViewDescriptorSetLayoutWithVariant(
+                            fragmentVariant, userVariantFilter, isLit || shadowMultiplier,
+                            reflection, refraction);
+                    // Check that all bindings present in the vertex shader DescriptorSetLayout
+                    // are also present in the fragment shader DescriptorSetLayout.
+                    for (auto const& r: vdsl.bindings) {
+                        if (!hasShaderType(r.stageFlags, ShaderStage::VERTEX)) {
+                            // ignore descriptors that are of the fragment stage only
+                            continue;
+                        }
+                        auto const pos = std::find_if(fdsl.bindings.begin(), fdsl.bindings.end(),
+                                [r](auto const& l) {
+                                    return l.count == r.count && l.type == r.type &&
+                                           l.binding == r.binding && l.flags == r.flags &&
+                                           l.stageFlags == r.stageFlags;
+                                });
+
+                        // A mismatch is fatal. The material is ill-formed. This typically
+                        // mean a bug / inconsistency in DescriptorsSets.cpp
+                        FILAMENT_CHECK_POSTCONDITION(pos != fdsl.bindings.end())
+                                << "Variant " << +k << " has mismatched descriptorset layouts";
+                    }
+                }
+            }
+        }
+
     }
     return variants;
 }
@@ -71,7 +133,7 @@ std::vector<Variant> determinePostProcessVariants() {
 std::vector<Variant> determineComputeVariants() {
     // TODO: should we have variants for compute shaders?
     std::vector<Variant> variants;
-    filament::Variant const variant(0);
+    filament::Variant variant(0);
     variants.emplace_back(variant, filament::backend::ShaderStage::COMPUTE);
     return variants;
 }